Bulletin of Earthquake Engineering最新文献_第2页

Seismic behavior of precast wall slab wall structure under near and far field earthquakes 预制墙板结构在近场和远场地震下的抗震行为

IF 3.8 2区工程技术

Bulletin of Earthquake Engineering Pub Date : 2024-10-04 DOI: 10.1007/s10518-024-02030-8

Shashiraj Shivling Chougule, Shiv Dayal Bharti, Mahendra Kumar Shrimali, Tushar Kanti Datta

{"title":"Seismic behavior of precast wall slab wall structure under near and far field earthquakes","authors":"Shashiraj Shivling Chougule, Shiv Dayal Bharti, Mahendra Kumar Shrimali, Tushar Kanti Datta","doi":"10.1007/s10518-024-02030-8","DOIUrl":"10.1007/s10518-024-02030-8","url":null,"abstract":"<div><p>Significant damages to precast wall-slab-wall (WSW) systems due to past earthquakes in near-field zones has been reported in the literature. This led to research on the seismic behavior of precast structures. Most of them concentrated on precast framed structures. Comparatively, fewer studies have been conducted on WSW systems, especially in exploring their performance in near-field earthquakes. This study focuses on the analysis of a 5-story precast WSW structure and the corresponding monolithic WSW structures under near-field (NF) and far-field (FF) earthquakes. The normalized backbone curves (M-θ curves) for precast and monolithic wall-slab connections were modeled using link elements at the slab-wall interface. A default plastic hinge is assigned at a distance of 0.1 L from the slab-wall interface. Three types of earthquakes were considered: far-field (FF), near-field forward directivity (NFD), and near-field fling step effect (NFFE). Nonlinear time history analysis (NLTHA) is performed in the computer program SAP2000 using an ensemble of 7 different earthquake records for each type. The earthquake records are normalized for three levels of peak ground acceleration (PGA): 0.4 g, 0.6 g, and 0.8 g. The responses of interest include top story displacement (TSD), maximum inter-story drift ratio (MIDR), base shear (BS), and maximum acceleration (MA). Comparative studies utilized the ensemble average of responses. The findings reveal that the theoretical analysis of precast frames shows greater vulnerability compared to conventional monolithic frames (as commonly practiced without specifying M-θ curves at the slab-wall interface). Moreover, NFFE led to increased top story displacement and MIDR responses in all types of precast and monolithic WSW structures under study.</p></div>","PeriodicalId":9364,"journal":{"name":"Bulletin of Earthquake Engineering","volume":"22 14","pages":"6991 - 7013"},"PeriodicalIF":3.8,"publicationDate":"2024-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142600719","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Seismic behaviour and design of a tall mixed reinforced concrete–steel structure supporting an oil refinery reactor 支撑炼油反应器的高大钢筋混凝土混合结构的抗震性能与设计

IF 3.8 2区工程技术

Bulletin of Earthquake Engineering Pub Date : 2024-10-03 DOI: 10.1007/s10518-024-02001-z

Smaragdi Radaiou, Konstantinos Skalomenos, George Papagiannopoulos

{"title":"Seismic behaviour and design of a tall mixed reinforced concrete–steel structure supporting an oil refinery reactor","authors":"Smaragdi Radaiou, Konstantinos Skalomenos, George Papagiannopoulos","doi":"10.1007/s10518-024-02001-z","DOIUrl":"10.1007/s10518-024-02001-z","url":null,"abstract":"<div><p>This study investigates the seismic behaviour of a special mixed reinforced concrete-steel structure that supports an oil refinery reactor. The structure is 64.90 m tall and consists of three parts: (a) a reinforced concrete frame basement; (b) a steel braced frame that supports the oil reactor and (c) the steel reactor itself. A three-dimensional model of the structure is created to perform static non-linear (pushover) analyses in order to obtain the capacity curves and understand the overall inelastic behavior of the structure. The results of the pushover analyses reveal that the structure exhibits similar inelastic behavior in both horizontal directions and satisfies the capacity design principles. The structure exhibits limited ductility considering the fact that has been designed with a behavior factor of <i>q</i> = 1.5 and primary damages are expected mainly in concrete members. Subsequently, dynamic non-linear time-history (NLTH) analyses are performed utilizing the three translational components of three seismic motions recorded during past earthquakes. These results involve: (i) the maximum values for displacements, accelerations and base shears; (ii) the maximum stresses at critical points of the oil refining reactor and (iii) the formation of plastic hinges at columns, beams and braces of the structure. Contrary to pushover analyses, NLTH analyses revealed the development of plastic hinges, hence seismic damage, that do not follow the desirable formation pattern. Moreover, the accelerations and displacements observed are expected to cause failure of the piping and mechanical equipment, while local failure of the high-stress areas of the shell of the reactor may be possible. Localized strengthening might be necessary to avoid repair works and downtime after such seismic event.</p></div>","PeriodicalId":9364,"journal":{"name":"Bulletin of Earthquake Engineering","volume":"22 14","pages":"7047 - 7083"},"PeriodicalIF":3.8,"publicationDate":"2024-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10518-024-02001-z.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142600663","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Multi-level damage index of RC structures based on material damage 基于材料损伤的钢筋混凝土结构多级损伤指数

IF 3.8 2区工程技术

Bulletin of Earthquake Engineering Pub Date : 2024-09-23 DOI: 10.1007/s10518-024-02018-4

Haodong Yu, Zixuan Gui, Jiaxu Shen, De-Cheng Feng

{"title":"Multi-level damage index of RC structures based on material damage","authors":"Haodong Yu, Zixuan Gui, Jiaxu Shen, De-Cheng Feng","doi":"10.1007/s10518-024-02018-4","DOIUrl":"10.1007/s10518-024-02018-4","url":null,"abstract":"<div><p>In past seismic events, earthquakes have often caused significant damage to buildings. It is noteworthy that most of the existing buildings are reinforced concrete structures. Therefore, in order to mitigate the damage caused by earthquakes, it is important to conduct damage assessment of reinforced concrete structures. Considering that damage at the material level is the fundamental cause of component and structural performance degradation, indices based on material damage often have advantages in reflecting and evaluating component and structural damage. This paper proposes a damage constitutive model for concrete based on existing research results. Then, aiming at the shortcomings of current research on steel bar damage constitutive models, a steel bar damage constitutive model under cyclic loading is proposed, reflecting various failure modes of steel bars under seismic actions. Based on this, a multi-level damage index system from materials to components to structures is established. Through multi-level experimental simulations and finite element analysis, the accuracy of the proposed damage indices is validated, and performance indices for components and structures are provided. These indices can effectively reflect the damaged state of components and entire structures and can be used to guide seismic design, damage assessment, and strengthening design.</p></div>","PeriodicalId":9364,"journal":{"name":"Bulletin of Earthquake Engineering","volume":"22 13","pages":"6739 - 6773"},"PeriodicalIF":3.8,"publicationDate":"2024-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142447357","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Analysis of earthquake-induced pounding between adjacent buildings in a row 一排相邻建筑之间地震引起的冲击分析

IF 3.8 2区工程技术

Bulletin of Earthquake Engineering Pub Date : 2024-09-23 DOI: 10.1007/s10518-024-02020-w

Shan Jiang, Changhai Zhai, Fuwei Zhang, Ning Ning, Jigang Zhang

{"title":"Analysis of earthquake-induced pounding between adjacent buildings in a row","authors":"Shan Jiang, Changhai Zhai, Fuwei Zhang, Ning Ning, Jigang Zhang","doi":"10.1007/s10518-024-02020-w","DOIUrl":"10.1007/s10518-024-02020-w","url":null,"abstract":"<div><p>In previous earthquakes, a significant number of adjacent buildings in a series have been damaged due to collisions. Pounding between adjacent structures in a series causes them to inflict multiple blows on one another, which is a complex type of collision. Previous studies have produced inconsistent or conflicting research conclusions due to various parameters of buildings and excitation. It is challenging to determine a universal law of collision reactions between adjacent buildings in a row. To address the complexity of these parameters, the dimensional analysis method is used. This work establishes a mathematical model for the dimensionless collision response of adjacent structures in a row. The layout of the structures is considered through three different configurations, and the effects of unilateral and bilateral collisions are compared. The analysis also considers the impacts of the frequency ratio, mass ratio and gap size of the oscillators. According to the impact of pounding, the displacement and velocity responses of the outer structures with low mass and stiffness can be divided into multiple spectral regions based on the frequency ratio of the structure and excitation. The effects of the mass ratio and frequency ratio on the responses of the outer flexible structures are correlated with the spectral regions. The results indicate that placing a structure with a small mass and stiffness outside is dangerous, since it causes a much larger pounding force and displacement of the outer structure. Compared with the unilateral impact response, the bilateral impact response induces a smaller displacement of the middle structure with a slight mass and stiffness.</p></div>","PeriodicalId":9364,"journal":{"name":"Bulletin of Earthquake Engineering","volume":"22 13","pages":"6775 - 6798"},"PeriodicalIF":3.8,"publicationDate":"2024-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142447358","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Parametric analysis on mechanical performance and additional reinforcement design method of reinforced concrete chimneys with openings 带开口钢筋混凝土烟囱力学性能参数分析及附加配筋设计方法

IF 3.8 2区工程技术

Bulletin of Earthquake Engineering Pub Date : 2024-09-17 DOI: 10.1007/s10518-024-02014-8

Zhi-Qian Dong, Gang Li, Song-Ke Zhang, Sha-Yi Wang, Ding-Hao Yu, Zeng-Bo Yao, Chun-Gang Liu, Mei Yang

{"title":"Parametric analysis on mechanical performance and additional reinforcement design method of reinforced concrete chimneys with openings","authors":"Zhi-Qian Dong, Gang Li, Song-Ke Zhang, Sha-Yi Wang, Ding-Hao Yu, Zeng-Bo Yao, Chun-Gang Liu, Mei Yang","doi":"10.1007/s10518-024-02014-8","DOIUrl":"10.1007/s10518-024-02014-8","url":null,"abstract":"<div><p>Under earthquake loads, reinforced concrete chimneys with openings are prone to stress concentration and damage around these openings, possibly leading to structural collapse. In this paper, the stress concentration factor was proposed to quantitatively analyse the range of stress concentrations around openings under various parameters and identify the most significant coefficients affecting the stress concentration range. 9 Groups of numerical analysis models for chimneys with different parameterized openings were established, and more than 200 pushover analyses were conducted. The effects of the chimney wall thickness, wall diameter, opening size, and spacing between openings on the stress around the openings were investigated. Recommendations for limiting opening sizes were given, and a method for designing reinforcement steel bars for strengthening was proposed. The numerical results indicated that the central angle of a single opening cross-section should be less than 70°, and the total central angle of multiple openings should be less than 140°; the spacing between openings should not be less than 0.5 times the width of the opening; the range of the steel reinforcement range should be 4.5 times the wall thickness for circular openings; and for rectangular openings, it should be 3.5 times the wall thickness. The added reinforcement steel should have a reinforcement ratio for strengthening of 1.3 times that of the original reinforcement ratio. Finally, through dynamic analysis, it was verified that the opening reinforcement design method proposed in this paper can effectively reduce the stress concentration around openings.</p></div>","PeriodicalId":9364,"journal":{"name":"Bulletin of Earthquake Engineering","volume":"22 13","pages":"6707 - 6737"},"PeriodicalIF":3.8,"publicationDate":"2024-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142266746","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Foreword to the special issue “Adjacent Interacting Masonry Structures” "相邻相互作用的砌体结构 "特刊前言

IF 3.8 2区工程技术

Bulletin of Earthquake Engineering Pub Date : 2024-09-17 DOI: 10.1007/s10518-024-02017-5

Katrin Beyer, Christof Butenweg, Andrea Penna, Matthew DeJong

引用次数: 0

Code-based brittle capacity models for seismic assessment of pre-code RC buildings: comparison and consequences on retrofit 基于规范的脆性承载力模型用于规范前 RC 建筑的抗震评估：比较及对改造的影响

IF 3.8 2区工程技术

Bulletin of Earthquake Engineering Pub Date : 2024-09-16 DOI: 10.1007/s10518-024-02016-6

Santa Anna Scala, Maria Teresa De Risi, Gerardo Mario Verderame

{"title":"Code-based brittle capacity models for seismic assessment of pre-code RC buildings: comparison and consequences on retrofit","authors":"Santa Anna Scala, Maria Teresa De Risi, Gerardo Mario Verderame","doi":"10.1007/s10518-024-02016-6","DOIUrl":"10.1007/s10518-024-02016-6","url":null,"abstract":"<div><p>The existing Reinforced Concrete (RC) buildings stock is often characterized by a significant seismic vulnerability, due to the absence of capacity design principles, even in regions with high seismic hazard, such as Italy. Approximately 67% of existing RC buildings in Italy have been designed without considering seismic actions (GLD), resulting in very low transverse reinforcement amount in beams and, particularly, in columns. Additionally, beam-column joints typically totally lack stirrups. Consequently, shear failures under seismic actions are very likely for this pre-code building typology, often limiting their seismic capacity. However, the assessment of shear failures in beams/columns or joints varies significantly from code to code worldwide. The main goal of this work is to quantify the impact of different code-based brittle capacity models on the seismic capacity assessment and retrofit, focusing on GLD Italian pre-1970 RC buildings. This comparative analysis is carried out by first considering three current codes, emphasizing their, even significant, differences: European (EN 1998-3-1. 2005), Italian (D.M. 2018), and American (ASCE SEI/41 2017) standards. Then, shear capacity models prescribed by the current drafts of the next generation of Eurocodes are implemented and compared to the current models. The assessment includes: (<i>i</i>) a parametric comparison among models; (<i>ii</i>) the evaluation of case-study buildings capacity in their as-built condition and after shear strengthening interventions. The latter is performed on 3D “bare” models, due to the lack of practical guidance in most codes on modelling masonry infills.</p></div>","PeriodicalId":9364,"journal":{"name":"Bulletin of Earthquake Engineering","volume":"22 13","pages":"6643 - 6674"},"PeriodicalIF":3.8,"publicationDate":"2024-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10518-024-02016-6.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142266749","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

LPI-based correction factor for response spectrum at liquefied sites 基于 LPI 的液化场地响应谱修正系数

IF 3.8 2区工程技术

Bulletin of Earthquake Engineering Pub Date : 2024-09-16 DOI: 10.1007/s10518-024-02005-9

Chi-Chin Tsai, Chun-Yu Kan, Yi-Wei Hwang

{"title":"LPI-based correction factor for response spectrum at liquefied sites","authors":"Chi-Chin Tsai, Chun-Yu Kan, Yi-Wei Hwang","doi":"10.1007/s10518-024-02005-9","DOIUrl":"10.1007/s10518-024-02005-9","url":null,"abstract":"<div><p>Liquefaction can significantly alter the ground response. However, no existing design spectrum accounts for the severity of soil liquefaction. This work aims to develop correction factors that can be used to adjust code-based design spectra to reflect the specific liquefaction susceptibility of a site. The correction factor is derived as the ratio of response spectra calculated by two types of 1D nonlinear site response analyses: effective stress analysis, which can model porewater pressure (PWP) generation, and total stress analysis. We considered seven real profiles and 200 motions in our analysis. Four combinations of soil nonlinear models and PWP generation models are also utilized to account for epistemic uncertainties. Results show that the response spectral ratio for liquefied sites typically falls below one for periods less than 1–2 s and rises above one for longer periods. Meanwhile, the response spectral ratio reflects the overall liquefaction susceptibility influenced by PWP, factor of safety, and liquefiable layer depth, while the liquefaction potential index (LPI) captures their complex interplay. Accordingly, we propose four LPI-dependent factors: three correction factors for peak ground acceleration, 0.2 s spectral acceleration (Sa), and 1.0 s Sa, and a long-period adjustment factor applicable for periods exceeding 1 s. The correction factors linearly decrease with increasing LPI, while the adjustment factor exhibits the opposite trend. A design spectrum for a liquefiable site can be readily constructed by adjusting the code-based design spectrum using the proposed correction factor, as illustrated in the example. This approach is applicable as long as LPI is available from a simplified liquefaction analysis or a liquefaction hazard map.</p></div>","PeriodicalId":9364,"journal":{"name":"Bulletin of Earthquake Engineering","volume":"22 13","pages":"6281 - 6303"},"PeriodicalIF":3.8,"publicationDate":"2024-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142266748","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Multivariable fragility surfaces for earthquake-induced damage assessment of buildings integrating structural features 综合结构特征的建筑物地震诱发损伤评估多变量脆度面

IF 3.8 2区工程技术

Bulletin of Earthquake Engineering Pub Date : 2024-09-16 DOI: 10.1007/s10518-024-02013-9

Mahshad Jamdar, Kiarash M. Dolatshahi, Omid Yazdanpanah

{"title":"Multivariable fragility surfaces for earthquake-induced damage assessment of buildings integrating structural features","authors":"Mahshad Jamdar, Kiarash M. Dolatshahi, Omid Yazdanpanah","doi":"10.1007/s10518-024-02013-9","DOIUrl":"10.1007/s10518-024-02013-9","url":null,"abstract":"<div><p>This study introduces three types of multivariable fragility surfaces, integrating effective structural features to improve damage assessment. The incorporation of additional information such as building occupancies, structural responses, and underlying soil types enhances the accuracy of conventional fragility curve predictions. Additionally, three modification factors are proposed to further refine conventional fragility curves and provide more precise predictions. The multivariable fragility surfaces are developed for eccentric brace frames modeled in Opensees software which is validated by experimental results and subjected to incremental dynamic analysis with 44 far-field ground motions. The influence of soil flexibilities on structural responses is incorporated through Winkler springs, representing soil-structure interaction. Diverse occupancies, such as hospitals, museums, and residential structures, are assessed using various peak floor acceleration thresholds and story drift ratios, employing multidimensional limit state functions to consider both structural and nonstructural losses. To account for uncertainties in structural responses and a single intensity measurement, a damage-sensitive feature derived from roof acceleration response, obtained through signal processing and system identification techniques, is introduced. The results for the proposed multivariable fragility surfaces indicate that the spectral acceleration corresponding to a 50% probability of exceedance could vary between 10.2 and 89%, in comparison to the corresponding conventional fragility curves. Finally, to evaluate the application of the enhanced fragility surface and modification factors, two instrumented EBF buildings, a 4-story EBF building, and a real 5-story hospital EBF, are selected as case studies. With additional details on soil types, occupancies, and structural responses, the process of employing modification factors resulting in enhanced fragility curves is demonstrated.</p></div>","PeriodicalId":9364,"journal":{"name":"Bulletin of Earthquake Engineering","volume":"22 13","pages":"6675 - 6705"},"PeriodicalIF":3.8,"publicationDate":"2024-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142266747","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Experimental and numerical evaluation of a U-shaped thin lightly reinforced concrete wall tested under cyclic loading 循环荷载条件下 U 型轻质钢筋混凝土薄壁的实验和数值评估

IF 4.6 2区工程技术

Bulletin of Earthquake Engineering Pub Date : 2024-09-12 DOI: 10.1007/s10518-024-01994-x

Carlos A. Blandón, Carlos Arteta, Ricardo Bonett, Julian Carrillo, Katrin Beyer, Joao Almeida

{"title":"Experimental and numerical evaluation of a U-shaped thin lightly reinforced concrete wall tested under cyclic loading","authors":"Carlos A. Blandón, Carlos Arteta, Ricardo Bonett, Julian Carrillo, Katrin Beyer, Joao Almeida","doi":"10.1007/s10518-024-01994-x","DOIUrl":"https://doi.org/10.1007/s10518-024-01994-x","url":null,"abstract":"<p>Reinforced concrete walls provide effective bracing against seismic lateral loading for buildings worldwide. In Latin America, seismic design provisions commonly adhere to the ACI 318 building code, which is predominantly based on United States construction practices. However, in some Latin American countries, the construction methods and geometrical configurations of structural walls significantly differ from those in the U.S.; hence, the available information about the actual behavior of such walls under seismic loads is limited. This study focuses on a thin and lightly reinforced concrete wall (TLRCW) building system, which is characterized by walls thinner than 150 mm and primarily reinforced with a single layer of electrowelded wire steel mesh, with no boundary elements but with additional reinforcing bars at the edges. Past experiments on rectangular and T-shaped walls of the TLRCW building system, which were tested under unidirectional cyclic loading, exhibited limited rotational capacities. This article extends these findings by presenting results from a multidirectional loading test on a U-shaped thin wall and assessing its failure modes, strength and displacement capacity, deformation components, and stiffness degradation. A numerical model based on a nonlinear beam-truss approach was implemented to evaluate the accuracy of the estimates of key performance variables of the wall. The experimental results show limited displacement capacity below 1.15% drift, with a failure mode controlled by concrete crushing at the flange toes. The numerical model was able to capture some of the key global response parameters for all the load directions and at the local level, but with less accuracy.</p>","PeriodicalId":9364,"journal":{"name":"Bulletin of Earthquake Engineering","volume":"2012 1","pages":""},"PeriodicalIF":4.6,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142193688","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0