Reliability of steel structures with Chevron bracing systems considering the performance-based seismic design philosophy

被引:0
|
作者
Omar E. Alvarado-Valle
Aaron Gutierrez-Lopez
Dante Tolentino
J. Ramon Gaxiola-Camacho
机构
[1] Autonomous University of Sinaloa,Department of Civil Engineering
[2] Autonomous Metropolitan University,Departament of Materials
来源
Discover Mechanical Engineering | / 2卷 / 1期
关键词
Performance-based seismic design; Chevron braces; Steel structures; Structural reliability; Earthquake engineering;
D O I
10.1007/s44245-023-00022-7
中图分类号
学科分类号
摘要
In this paper, the seismic performance and reliability of steel buildings with Chevron-Braced frames are studied integrating a novel probabilistic approach and the performance-based seismic design concept. The seismic response of models is extracted using response history analyses with the help the commercial software SAP2000. In this sense, three variables associated with the seismic response of the structure are studied: overall lateral displacement, rotation of connections, and inter-story drift. Those responses are evaluated by exciting the structure with eleven characteristic ground motions of the zone with respect to three performance levels: immediate occupancy, life safety, and collapse prevention. Once the seismic response is extracted for every performance level, the reliability of the models is calculated with respect to inter-story drift as described next. First, considering the seismic response in terms of inter-story drift for every ground motion, the associated histogram is constructed. Then, using 13 Probability Density Functions (PDFs), a Chi-square test is performed to identify the best-fitted PDF associated to the histogram of inter-story drift. Afterwards, with the best-fitted PDF of inter-story drift, the probability of failure and reliability index are extracted considering serviceability limits for every performance level. This represents a unique approach to extract the risk of structures subjected to ground motions associated to different performance levels. In addition to the structural reliability, a study about the cost of the structures with and without Chevron braces is developed, and then, it is documented the best option. Finally, based on the results reported in this paper, it is demonstrated that steel buildings with Chevron-braced frames present a better seismic performance than steel moment resisting frames without any bracing system. In summary, overall lateral drifts are reduced between 40 and 60% when Chevron braces are implemented in comparison to steel moment resisting frames without braces. On the other hand, if Chevron bracing systems are not used, i.e., in steel moment resisting frames, the inter-story drifts are about 300% higher than those of steel structures with Chevron braces. Hence, structural damages can be considerably reduced if Chevron-braced frames are implemented in steel structures that may be excited by characteristic ground motions of the zone where they are located.
引用
收藏
相关论文
共 50 条
  • [41] Study on performance-based seismic design for beam bridges considering residual displacement
    Li, Yu
    Che, Yanyang
    Wang, Sen
    Tumu Gongcheng Xuebao/China Civil Engineering Journal, 2015, 48 (03): : 71 - 78
  • [42] Performance-based seismic design of structures: a direct displacement-based approach
    Xue, Q
    Chen, CC
    ENGINEERING STRUCTURES, 2003, 25 (14) : 1803 - 1813
  • [43] Seismic Design and Response of Framed Structures with Stiffening Bracing Systems
    Salem, Mohamed
    Pekcan, Gokhan
    Itani, Ahmad
    JOURNAL OF EARTHQUAKE ENGINEERING, 2019, 23 (04) : 625 - 647
  • [44] Performance-based seismic failure mode identification and optimization for steel frame structures
    Xu, Long-He
    Wu, Yao-Wei
    Li, Zhong-Xian
    Teng, Jun
    Gongcheng Lixue/Engineering Mechanics, 2015, 32 (10): : 44 - 51
  • [45] On the quantification of seismic performance factors of Chevron Knee Bracings, in steel structures
    Farahi, Mojtaba
    Mofid, Massood
    ENGINEERING STRUCTURES, 2013, 46 : 155 - 164
  • [46] Performance-based design and seismic reliability using designed experiments and neural networks
    Foschi, RO
    Zhang, JS
    ADVANCES IN STOCHASTIC STRUCTURAL DYNAMICS, 2003, : 109 - 116
  • [47] Damage assessment and performance-based seismic design of timber-steel hybrid shear wall systems
    Li, Zheng
    He, Minjuan
    Li, Minghao
    Lam, Frank
    EARTHQUAKES AND STRUCTURES, 2014, 7 (01) : 101 - 117
  • [48] Development of Probabilistic Framework for Performance-Based Seismic Assessment of Structures Considering Residual Deformations
    Uma, S. R.
    Pampanin, Stefano
    Christopoulos, Constantin
    JOURNAL OF EARTHQUAKE ENGINEERING, 2010, 14 (07) : 1092 - 1111
  • [49] Performance-based plastic design for seismic rehabilitation of high rise frames with eccentric bracing and vertical link
    Karimi R.
    Rahimi S.
    Earthquake and Structures, 2019, 17 (06): : 623 - 633
  • [50] Performance-based seismic design for seismic isolation buildings
    Pan, Zhihong
    Li, Aiqun
    PROCEEDINGS OF INTERNATIONAL CONFERENCE ON HEALTH MONITORING OF STRUCTURE, MATERIALS AND ENVIRONMENT, VOLS 1 AND 2, 2007, : 1090 - +