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Horizontally curved bridges have been observed to suffer severe structural damage during past earthquakes so determining the seismic performance of curved bridges is crucial due to the complex dynamic behavior of these structures because of their irregular geometry and non uniform mass and stiffness distributions. Analyzing and plotting the capacity curve of these structures can be costly and time-consuming. As a result, many efforts have been made to simplify the structural models of these bridges and reduce the computational workload required for their analysis. This article presents a straightforward method to convert the multi-degree-of-freedom system of these structures into an equivalent single-degree-of-freedom system, ensuring that the capacity curve of the equivalent structure closely matches that of the original structure with minimal error. In this study, the OpenSees program was used to extract the stiffness and mass matrices of a curved bridge structure. These matrices were then condensed into one-by-one matrices for mass and stiffness using dynamic condensation equations. The characteristics of these matrices were applied to a single-degree-of-freedom stick model. In this model, the obtained mass is placed at the top of a stiff rod (stick), which is connected to the ground by a spring (zero-length element) with the equivalent stiffness obtained. A nonlinear static pushover analysis of the bridge structure was performed to obtain the capacity curve. An equivalent bilinear curve was then drawn, and the yield shear force and yield displacement were determined. The nonlinear behavior of the single-degree-of-freedom structure was modeled using the Steel02 material available in the OpenSees library by zero length element utilizing the yield shear force and yield displacement magnitudes of the curved bridge. The capacity curve of the stick model, which has a single degree of freedom, showed an error percentage of 7% compared to the bridge's capacity curve. This indicates acceptable compliance with the capacity curve of the main structure, making the stick model a viable alternative for repeated analysis of the curved bridge structure. This study also included a sensitivity analysis to investigate the effects of increasing the curvature radius and decreasing the curvature angle of the bridge on its capacity and effective mass. Due to the dynamic condensation of the curved bridge structure, the influence of all degrees of freedom was considered in the stiffness and mass matrices, unlike methods that rely solely on the first vibration mode for dynamic condensation. Comparing the capacity curve of each structure with that of an equivalent single-degree-of-freedom system revealed that the structure's capacity increases with a larger curvature radius. In contrast, the lowest capacity was observed in the straight bridge scenario. Additionally, modal analysis of the studied models showed that increasing the bridge's curvature radius leads to a longer structural period, while a decreasing curvature angle has a similar effect. However, the period of the straight bridge was longer than all the other models. Furthermore, as the curvature radius increased, the mass contribution percentage of the first mode in the translational x-direction decreased, whereas the translational mass contribution percentage in the y-direction and the rotational mass contribution around the z-axis increased.

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Geometry is considered one of the fundamental structures of Iranian traditional art and architecture, and some of its displays can be seen in most of fine ancient works. Studying geometry, as one of the main fields of Iranian art and architecture, is of more importance when it comes to the word of architecture, as it seems impossible to define it without relying on geometry. Architecture has been founded on "construction" as it is necessary to utilize accurate geometry and order; and in architecture, Order and planning are manifested as geometry. In other words, the basic factor that makes different parts of architecture united is nothing but geometry, and through this uniting and coordination between parts of architecture culture the survival and endurance of that culture becomes possible. In general, order and geometric plan assists the designer to predict the course of the plan and design. Not only the Iranian traditional architecture works from the ancient times to the Islamic era have been relied upon the geometric principles, but also the contemporary architecture is based on such principles. This study is concentrated on the exact recognition of geometric principles, intellectual roots and theoretical basics of Iranian traditional architecture in addition to the analysis of the advent of such items in the contemporary architecture. The main aim of this research is to recognize the geometric principles of the traditional architecture and its application in the contemporary architecture. In other words, we aim to answer to the question, what are the geometric principles of the traditional architecture and how is the manifestation of such principles in the contemporary architecture? The results show that the use of geometric order in the plan, along with the application of hidden geometry and creation of geometric understanding through the static sense have been more applied in the contemporary architecture compared to other characteristics of Iranian traditional architecture and the traditional architecture archetypes and motives have always attracted contemporary architects.

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Aims:One of the most important issues and challenges facing developing societies is the physical identity of buildings and urban facades. Cities, under the influence of modernity, have an identity problem, and the concept of urban identity in the process of cognition and perception presents a multi-dimensional and complex phenomenon. The physical identity of cities has become an influential category in city lifeThis article is based on the question that - How can a solution or a guideline be formulated to improve the formal identity and exterior appearance of architecture in the capital and a metropolis like Tehran, which is in line with today's tastes and intellectual level? Methods: The research method in this research is qualitative survey and research of applied type, and to answer the research question, first from the library method to examine the effective factors in the formation of physical identity, then through the questionnaire asked from the experts and professors of architecture. is placed

Findings: The statistical population consisted of 273 architecture professors, and finally, among the effective factors with the highest priority among the effective factors in the physical identity of the buildings, the combination of traditional and modern facades, the use of details and decorations in the facades, the use of sustainable materials, the spirit Nowadays, using the past model and paying attention to diversity and avoiding uniformity and homogeneity has had the greatest impact.

Conclusion: There are statistically significant differences between different respondents in their attitude towards facade parameters (mass and joint, openings, architectural details and materials). These results show the multiplicity and variety of trends in the practice of architecture for different jobs. It is also clear that the main reason for the significant difference between the averages is related to the fact that the respondents believe that these parameters had a significant impact on the continuity of the architectural identity.

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“Create” is the Lord’s act and “creator” and “creativity” are among his characteristics. Since he has created the man from his effigy and has blown through his soil, as the Lord’s Caliph on earth, the man requires to be a symbol of the God’s characteristics. “Create” and “creation” are virtually ascribed to the man, as well, indicating the creation of artistic works and creativity in acts and deeds. They are meant to signify inventiveness, capability of dominating the creatures, tackling the problems, providing, preparing and constructing the most appropriate living conditions. This seems to be quite plausible in the present era since the man has gained power in dominating the creatures. The present study investigates a path to the creation of artistic works, in particular, architecture by comparing it to the procedure of creation in nature and generally to the universe regarding Islam and the Holy Quran. Also, it discusses the interaction between an architect and the whole universe and envisages a general perspective based upon his own creation. In this regard, this study seeks answers to the following questions: ● Is the man_ himself as a creature _capable of creating? ● What are the principles and features taken into account regarding the creation of the universe? ● What are the commonalities between the creation of the universe and the creation of an architectural work? In so doing, a library research and a field study is applied considering interpretational analysis. It, then, follows that as the Lord endows the spirit of creation into the man’s corpse, the man his Caliph on earth_ also gives life to raw materials by blowing his spirit of creation and there comes the birth of Art from mankind. In a sense, creation is always performable and within the procedures of creation opposite elements are juxtaposed to supplement each other; a kind of variation from the same origin to perfection. In other words it can be pointed out that in creation the Lord has manifested integrity by similarity and has endowed identity to every element by purification.

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This paper examines the dynamic behavior of steel moment-resisting frames with steel-concrete composite beams with welded connections. One story-two bay frames with and without composite beams with rigid and simple connections were modeled with ABAQUS software and analyzed under earthquake accelerations. The distribution pattern of plastic hinges, rotation of plastic beam to column joints, plastic energy dissipation capacities of frame components and crack mechanism of slabs near the interior and exterior connections were studied. The results revealed that the frames with composite beams and welded rigid connections have the lowest values of period, plastic energy dissipation capacity, plastic rotation of joints and early frame mechanism. Failure mechanism in the exterior connection was in the form of concrete pre-tensioning from the starting at the corner of the column stretching in oblique around the edges of the slab. At the interior connections, it was in the form of concentrated compressive stress over the outer flange of the column. Strength and ductility of steel in tension and compression capacity of concrete in steel-concrete beams (composite beams) make this system suitable for long spans and considerable growth in recent years. In Euro Code 8 , rules are stated for mechanisms between concrete slab and steel column in bending and sagging moment modes. The mechanism in bending and sagging moment regions, where concrete slab has enclosed steel column, is shown in Figure 1. In the first mechanism, the compressive stress is applied directly onto the outer side flange of the column. Whereas in the second mechanism, the concrete slab exerts pressure through a 45 degree angle to the column web. The performance of the first mechanism leads to removal of contact friction between the concrete slab and the column. But the second mechanism leads to removal of contact element (Hard Contact) between the concrete slab and the inner core of the column web and flange. Therefore, activation of both mechanisms manifests a better performance of the system. Formation the plastic hinges in frames generally start at the column base, particularly at the middle column and then expand to other members, connections and the concrete slab. In this study, the use of composite beam, instead of steel beam, causes plastic hinges to form in the connections instead of beams. In composite frames with simple connections, due to stress concentration, the major plastic hinges are formed at the welded connections. In these frames, the first plastic hinge is formed earlier than others. But the failure capacity of these frames is higher than rigid ones. In rigid connections, the added rigidity due to enclosure by concrete slab causes initial stiffness for the frame and delays the formation of the first plastic hinge. However, it induces sudden stresses on the welds at the upper part of the beam. Thus will eventually lead to weld rupture and slab failure. This produces early failure in the frames.     On the basis of the observed behavior and supporting theoretical studies, the effects of the bolt tightness on the behavior of double layer space structures have been discussed in the context of design assisted by testing emphasized in Chapter 7 of the Iranian Code of Practice for Space Structures. With due consideration of different aspects of the influence of the degree of bolt tightness on the behavior of joints, members and modules, as well as the overall structural behavior, some practical recommendations have been presented to improve the reliability of structural performance through increasing rigidity and load carrying capacity of such double layer space grid structures, that can be achieved as a result of a proper choice of the bolt tightening procedure.

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Aims: The construction sector accounts for a large portion of the world's energy consumption; in Iran, it’s more than 40% of energy consumption. Office buildings have a relatively unfavorable energy consumption pattern due to impersonal ownership and lack of supervision and needs improvement. The aim of this research is to improve the energy performance of these buildings by using a dynamic double skin façade.

Materials and Methods: In this research, first the dominant pattern of office buildings in Mashhad has been studied. Since the design is done in Mashhad, which is one of the religious centers of the country, and to create this feeling in users, the pattern used in its second skin is inspired by Islamic patterns of tiles and decorations of the holy shrine of Imam Reza (AS). After analyzing the energy performance of 5 selected patterns with Ladybug and Honeybee plugins, the most optimal pattern is used.

Findings: Daylight is one of the most influential parameters in the design of energy efficient buildings. To make the most of this parameter, it is necessary to create facades with maximum transparency. But these facades face challenges such as overheating. Therefore, it’s important to control the amount of daylight entering.

Conclusion: In this research based on highperformance architecture theory, an optimal solution to improve the energy performance of a 5-storey office building in Mashhad by using a dynamic double skin façade with the ability to control the daylight entrance is presented; which results in a reduction in building’s energy consumption by approximately 130,000 kWh per year.
 

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  Abstract: For theoretical and practical investigation of damage increase on dynamic characteristics of concrete structures can use analytical model to extract dynamic characteristics such as natural frequency and mode shape. In this research, results of experimental and finite element analytical model for various specimens were compared. These specimens include RC beams and pre-stress concrete beams that constructed in laboratory. In this paper, one of the specimens was modeled for showing how modeling cracked concrete beams and specials notes related to nonlinear static analysis and modal analysis. In test case, damages are produced step-by-step applying the static load and modal characteristics of the specimen are measured via modal test immediately after loading step. However, in finite element modeling case is two complicated problems. Firstly, because concrete is a composite material, modeling of cracked concrete is very difficult. Secondly, in RC structures, both the concrete and steel have nonlinear behavior. Results of this research include peculiar notes that can be useful for other similar researches.      

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Aims: The project's primary aim is to better understand the skills and knowledge necessary for success in the architecture field, as well as to evaluate the intelligence and aptitude of those intending to pursue a career in architecture, which will ultimately benefit job counseling.

methods: An investigation into Gardner's multiple intelligences theory was conducted by employing the Delphi method and a qualitative research questionnaire, with ten experts being asked questions. By using a methodical quantitative questionnaire, this research approach provides insight into the ratio of intelligence and its sections that are either natural or acquired and determines the influence of nature and nurture on architecture tasks by mathematics calculations.

Findings: The achievement of architectural skills is influenced by the nature and nurture components in approximately equal amounts, which in the contract principles are at least 5/1, consisting of 25/49 for nurture and 75/50 for nature. Likewise, a maximum of 7/16 percent goes to management plans and interaction with clients, 75/41 to nurture, and 25/58 to nature.

Conclusion: Concerning the effects of nature and nurture, the pursuit of architecture at the academic level should be done with one's genes and characteristics inherent in a person. On the other hand, the importance of nurturing in training highly qualified individuals is greater than its counterpart and therefore should be adequately maintained.
 

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In seismic performance based design procedures, nonlinear static pushover analysis (SPO) and incremental dynamic analysis (IDA) are usually used for determining seismic demand and capacity of moment resisting frames (SMR). The results of these methods are often presented using curves of intensity measures (IM) Vs damage indexes (DI). For far field earthquakes, different intensity measures, such as acceleration spectral intensity of the first mode of vibration with 5% damping i.e. Sa (T1, %5) factor are used. But for near field earthquakes, it is necessary to consider other suitable IM's. In this article, the difference between IDA and SPO curves for near field earthquakes compared to that for far field earthquakes are shown for three SMR frames which are designed according to Iranian code of practice using 15 pairs of near and far field earthquakes. Then some other intensity measure factors which may be suitable for near and far field earthquakes, are considered. These IM's are compared with the use of standard definitions of "efficiency" and "sufficiency". It is concluded that intensity measure IM1I&2E which considers second mode effects and nonlinear behavior, is much more efficient and better sufficient than more often used Sa(T1, %5) factor.

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Nonlinear Static pushover (NSP) analysis has become a popular tool for the seismic assessment of buildings and bridges. One of the well-known methods to determine the target displacement during NSP is Capacity Spectrum Method (CSM).In the Conventional CSM, capacity spectrum is drawn based on the location of control point to determine the target displacement. Because of dependency of displacement capacity spectrum on the location of control point, determination of displacement capacity spectrum needs further evaluation and can be time consuming specially for complicated structures. Previous studies have been proposed different choices for location of control point in the bridges such as the point with the maximum displacement or the top point of critical pier. In this paper the CSM has been developed for drawing capacity spectrum. The proposed method is based on determination of displacement capacity spectrum from pushover analysis of MDOF system without selection of any control point. The proposed method is based on derivation of frequency of SDOF system based on current situation of MDOF system for each mode and step. Moreover, nonlinear behavior of MDOF system is considered in frequency of SDOF system step by step. After derivation of frequency of SDOF system, displacement capacity spectrum of SDOF system at each mode and step is determined based on the current frequency and current acceleration capacity spectrum. In this paper for both of the proposed and conventional methods, demand curve is obtained by time history analysis of a SDOF system and specifications of bilinear capacity spectrum. In the proposed method, determination of displacement for each point is based on NSP step that SDOF bilinear capacity curve intersect to demand curve. For evaluation of proposed and conventional methods a horizontally curved bridge have been selected and critical pier and earthquake corresponding to displacement capacity of bridge is determined through Incremental Dynamic Analysis(IDA). Then the proposed and conventional methods in the horizontally curved bridge are applied during NSP with force distribution based on first transverse mode shape. Assessing the result reveals that displacement from proposed and conventional method are different because of different formulations and dependency of proposed method to displacement vector,force vector and mass matrix of structures during NSP while the conventional method depends only to displacement of one point. Another feature that distinguishes proposed from conventional method and causes different results is the way that target displacement is determined from target spectrum displacement for top of critical pier. Finally comparison of top displacement of critical pier from proposed and conventional methods with those derived from (IDA) shows the efficiency of proposed method to reduce difference between the NSP and IDA results

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Aims: The manuscript aims to establish synchrony between the designer and the biological intelligence of nature, defining a profound interaction between the creator and nature. The practical objective of the article is to enhance human-environment compatibility. The article advocates the adoption of bioware and living tools in the architectural design process.

Methods: The research methodology is descriptive-analytical. It is a kind of applied research. The research has both qualitative and quantitative approaches. Data collection methods included library (literature review) and field (questionnaire) research, and data analysis was conducted using SPSS software. the target population was the employees of government offices in Hamadan city and the studied population was 350 people from the target population.

Findings: The highest level of environmental compatibility with the audience in office spaces using nature was found in "creating indoor space with an emphasis on trees in the terrace area" with a score of 131.2, followed by "indoor space with an emphasis on trees in the room" with a score of 98.1 and "indoor space with an emphasis solely on natural scenery" with a score of 97.1.

Conclusion: The results prove the influence of nature in the form of living tools on the compatibility of the environment. It shows positive feedback from the audience. The results focus on the use of bioware and living tools to enhance a building into a natural organism. Nature is a way to connect to the roots. Therefore, it is a witness to human and environmental compatibility in office spaces.

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In recent years using wireless sensor networks (WSNs) in applications, such as disaster management and security surveillance have been increased. A lot of sensors in these applications are expected to be remotely deployed in unattended environments autonomously. To support scalability, nodes are often grouped into disjointed and mostly non-overlapping clusters. Every cluster has a leader that is known as a cluster-head (CH). The CH may be selected by the sensors in the network or pre-assigned by the network designer. These networks require effective communication protocols to be energy efficient and increase network quality. In this paper, a self-organization routing protocol for wireless sensor networks is presented by using hierarchical protocols and considering the position of CHs regarding to each other which is called “Probabilistic Selection of Cluster-head based on the Nearest possible Distance of Cluster-head”. In addition to increase network lifetime, it causes to increase scalability of the network, optimal use of communication bandwidth and improve some of qualitative parameters of the sensor networks. Proposed method has little overhead control and can find appropriate CHs with local information. In this paper, simulation is done by the NS-2 simulator, and simulation results show this protocol could lead to increase environment monitoring, improve network lifetime, throughput and some qualitative sensor network parameters by improving the clustering process of all the routing protocol. WSNs that aren’t considered CHs distribution (LEACH protocol here).

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The Study on the Accelerometers of the past earthquake indicates that the vertical acceleration can reach values comparable to (and sometimes even higher than) the horizontal accelerations. This study investigates the effect of vertical component of earthquakes on the railway bridges with box girders cross section. Results of bridge analyses when vertical motions of earthquake are included in earthquake effects are compared to the case when vertical motions are excluded. Comparison of the results show that the vertical components of ground motions cause significant amplification in the axial force demand in the columns and moment demands in the box girder at both the midspan and at the face of the joints to column. Another finding from the linear analytical study is the fact that the effect of vertical component is completely uncoupled to the horizontal effects. With the results obtained, the comparison of the results with SDC-2006 suggestions shows that a unit multiplier of the dead load effect for compensation of vertical effect of earthquake. Finally, for considering the effect of an earthquake's vertical component, Dead Load Multipliers have been suggested; they are used in designing bridges.

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This paper focuses on the interstory drift ratio (IDR) demands of building structures subjected to nearfault ground motions having different impulsive characteristics based on generalized interstory drift spectral analysis. The near-fault ground motions considered include the idealized simple pulses and three groups of near-fault ground motions with forward directivity pulses, fling-step pulses and without velocity pulse. Meanwhile, the building systems are equivalently taken as shear-flexural beams with representative lateral stiffness ratios. The IDR distribution of continuous beams subjected to three groups of near-fault ground motions is acquired. It is illustrated that the maximum IDR shifts from the upper half to the lower half of buildings with an increase in lateral stiffness ratio. For long-period systems, the average IDR under impulsive ground motions is significantly greater than that under nonpulse motions. Finally, for moment-resisting frame buildings the forward directivity pulses amplify the drift response of higher modes, while the fling-step pulses excite primarily their contribution in the first mode and generate large deformation in the lower stories. The essential reason for this phenomenon is revealed according to the distinct property of near-fault impulsive ground motions and generalizedmdrift spectral analysis. High-rise buildings behavior subjected to near-fault records is different than the far-fault records. Because of this difference, the characteristics of near-fault records that alters the behavior of the structure in the near-fault records. The effect of the characteristics of near-fault earthquakes on seismic behavior of steel moment frames with eccentricity brace and determine the collapse prevention. The aim of this study was to analyze the IDA tall buildings and obtain the point of collapse prevention (CP) of the curve by IDA under the near-fault records, the effect of height and weight stories on the point of collapse prevention , to obtain the Immediate Occupancy performance level (IO) and life safety (LS) of the curve IDA, determining the impact feature near-fault records (forward directivity, backward directivity, fling step) at the time of forming the point collapse prevention and determine the amount of spectral acceleration records at the time of forming the point collapse prevention , To obtain the point of collapse prevention (CP) by capacity spectrum method (determining the performance level CP) and compare the result with the result of IDA and the reasons for the difference in results of these two methods and proposals for closer results in future research. To achieve these goals, 6 frames 15, 20 and 25 floors with two extra-axial value of 1 and 2 m were designed. Then, 30 near-fault records to determine the point of collapse prevention with IDA and capacity spectra. To evaluate the effect of the characteristics of near-fault records to determine the point of collapse prevention, near-fault records of the three categories including feature a forward directivity, backward directivity, fling step, was divided. The frame is designed for IDA analysis was performed and the results for of these records have been examined individually. In order to characterize the structural response over the near-fault records showed that near-fault records with the fling step in spectral acceleration lower than the near-fault records with the forward directivity the point collapse prevention arrive. Structural response to near-fault records with backward directivity was also very similar to far-fault records. The comparison between the response of structures to analyze the IDA and NSP analysis to determine the point collapse prevention became clear answers obtained by NSP smaller amounts of IDA method show.

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Fragility curves are powerful tools to assess and control of possible damages to the existing structures and estimate the exceedance probability from the seismic behavior of the structures under the influence of different earthquake levels. these curves present the probability of damage as a function of the ground motion characteristics. The main goal of the current study is to examine the existing methods and the presentation of a suitable method for the production of analytical seismic fragility curves and the proposal of appropriate relationships for the exceedance probability from different performance levels. For this purpose, three high-rise building frames with 20, 25, and 30 stories with a slimming ratio greater than π, according to the standard 2800 and the sixth issues and tenth issues of the national building regulations of Iran, were designed. Then, by using Perform 3D program, their analytical model was defined and validated. To evaluate the seismic response demand of frames, incremental nonlinear dynamic analysis (IDA) was performed. For IDA analysis, the 22 recommended records in the FEMAP695 guideline and two earthquakes in Iran were used. Spectral acceleration of the first mode of the structure with damping of 5 Percentage (Sa (T1.5%)) was used to introduce the intensity of the earthquake (IM) and the inter story drift ratio was used to introduce the engineering demand parameter (EDP) Or damage measure (DM). To find the appropriate function of the exceedance probability from limit states and use them in the production of fragility curves, the results of IDA analysis and nineteen different probability functions using the suitable program were used. in order that the used distribution describes the sample data in the best manner, the goodness of fit tests was used. the results obtained from the goodness of fit tests show that The probability distribution rank used by researchers (log normal) versus other probability distribution functions varies in ranking the best fitted probability distribution. and selecting the appropriate probability distribution is effective in the conclusions and determining the probability exceedance of the structure from the desired limit states. Therefore, in order to reduce the uncertainty related to the mathematical model (epistemic uncertainty) in the template of a comprehensive view and according to accuracy and the required seismic target, a suitable method for developing fragility curves for types of steel structural systems with different heights with the name of intelligent seismic fragility curve (ISFC) is introduced and presented. Such that if only one distribution is desired to compare several options, including deciding how to reinforce or comparing the seismic performance of several structures to plot the fragility curve, it is recommended: to use the probability distribution "Generalized Extreme Value", due to having more parameters and the ability to fit better than the distribution "log normal", but for more sensitive structures, such as nuclear power plants and hospitals that are of great importance and require high precision or in order to achieve the most accurate fitted possible to decide on about  the vulnerability estimation of any structural system, It is then recommended: to estimate the exceedance probability from performance levels at the structure, before fragility analysis, by probabilistic evaluation and using the goodness of fit tests on suitable probability functions, At First, a best fitted probability distribution should be selected at all performance levels and then the vulnerability of structures is estimated by fragility curves.

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Piers are vital design elements for a bridge under seismic loading; ensuring their stability and health is crucial for the overall safety of the bridge. The most common methods available for detecting damage, primarily used in the bridge deck, are modal methods. These methods have errors in detecting damage in the structure for various reasons. On the other hand, these methods require healthy pier information. In addition to modal methods, other methods based on energy and data analysis using wavelet transform also exist, the shortcomings of which are mentioned in this article. The fundamental problem that most methods face is the existence of healthy pier information, and furthermore, parameters that should be used to detect damage must be computable or measurable. In this study, a new method is presented, using the concept of correlation, to detect the presence and location of damage with minimal error and without having healthy pier information. To this end, the tallest pier of Ramp A of the Shahid Bakri Bridge complex in Tehran was selected as the case study. Before modeling, the accuracy of the modeling method was validated, and then a precise nonlinear model was built in the OpenSees software using as-built sheets. For the first time in this article, damage in the model was created in different scenarios: reduction of stiffness in concrete cover materials, reduction of cross-sectional area of rebars at various points of the section. The location of the damage was also separately applied at three heights of the pier: 15, 25, and 35 percent of the height. To generate data on the pier, it was considered to load it with an impact load on the top of the pier. This load was applied as an impact on the deck of the pier for a very short time, and the data was collected using accelerometers at the pier height, and the correlation between each pair of consecutive sensors was calculated. Due to the high velocity of the compressive wave in concrete and the overlap that occurs in the return of the wave at both ends of the pier, data collection was performed only for about 0.001 seconds. Finally, due to the weakness of the correlation coefficient in magnifying the location of damage, using the concept of correlation, a damage index based on this concept was presented, and the capability of the presented index in detecting the presence and location of damage in various damage scenarios was evaluated. The results obtained indicate the proper performance of this index in detecting damage in various scenarios and damage intensities between 10 and 30 percent. The presented index only made an error in detecting the location of damage in cases where damage occurred in the concrete cover and rebars in small areas, but even in these cases, the presence of damage was well demonstrated. Due to limitations in sensor placement at the pier height, increasing the distance between sensors and reducing their number was also investigated, and it was observed that even with greater distances between sensors, the presented index has the capability to detect the presence and location of damage, and after finding the approximate location of damage, it is possible to identify the exact location of damage by re-sensoring in probable areas.