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Applications of Performance-Based Design Methods in Eccentric Web Member Steel Truss Corridor Structures
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摘要: 论述了性能化设计方法在某偏心腹杆钢桁架结构体系中的应用,基于非均匀梁的力学特性研究了偏心腹杆钢桁架中间段与两端连接梁刚度的比值对桁架内力分布的影响。通过合理的结构初步设计,控制钢桁架中间段与连接梁抗弯刚度比,使连接梁承载力需求易于满足,同时降低了主体结构相关连接范围内的承载力设计需求。对结构的抗震性能、节点应力、舒适度性能与防连续倒塌性能分别进行分析与评估,结果表明:通过合理的性能化设计,结构各项指标均满足预期性能目标要求,可供类似工程的设计参考。Abstract: The applications of performance-based design methods on eccentric web member steel truss structural system were discussed. Based on the mechanical properties of non-uniform beams, the study examineed the influence of the ratio of the stiffness between the middle section of the eccentric web member steel truss and the connecting beams at the both ends on the internal force distribution of the truss. Through rational preliminary design, the bending stiffness ratio between the middle part and connecting beams was controlled, which allowed the demands of connecting beams to be easily satisfied while simultaneously reducing the demands of components and connections within the relevant ranges of the main structure. The seismic performance, stress of joints, human comfort of floor vibration, and progressive collapse prevention of the eccentric web member steel truss corridor structure were designed and assessed respectively. The results demonstrated that, through rational performance-based design, each index satisfied the requirements of expected performance objectives. The research also could provide references for similar projects.
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[1] 杨律磊,张谨,谈丽华,等. 苏州国际会议酒店大跨度高位钢连廊结构设计[J]. 建筑结构, 2022, 52(20): 112-119,59. [2] 曹志亮,苏磊. 空腹钢桁架改进方案比选研究[J]. 建筑技术开发, 2019, 46(15): 19-20. [3] 伍云天,姜凯旋,杨永斌,等.中美超限高层建筑性能化抗震设计方法对比分析[J].建筑结构学报,2015,36(2):19-26. [4] 杨学林,李晓良,茆诚,等.复杂超限高层建筑结构性能化设计研究与应用[J].建筑结构学报,2010,31(增刊2):5-11. [5] 张谨,王立军,杨律磊,等. 基于性能的钢结构抗震设计方法探讨及其改进研究[J]. 钢结构(中英文), 2023, 38(1): 37-65. [6] 张谨. 多高层钢结构抗震性能化设计方法及性能评价准则研究与应用[M]. 北京: 中国建筑工业出版社, 2023. [7] 李越. 直立锁边金属屋面板性能化抗风设计方法研究[D].哈尔滨:哈尔滨工业大学,2022. [8] 石永久,白音,王元清.大空间钢结构防火性能化设计与关键技术研究[J].工程力学,2006(增刊2):85-92. [9] 葛家琪,王毅,张玲,等. 地铁所致成都博物馆振动全过程性能化研究[J]. 建筑结构学报, 2015, 36(2): 27-34. [10] 中国勘察设计协会.建筑结构抗震性能化设计标准:T/CECA 20024—2022[S]. 北京:中国建材工业出版社, 2022. [11] 中华人民共和国住房和城乡建设部.建筑楼盖结构振动舒适度技术标准:JGJ/T 441—2019[S].北京:中国建筑工业出版社,2020. [12] 中华人民共和国住房和城乡建设部.钢结构设计标准:GB 50017—2017[S]. 北京: 中国建筑工业出版社, 2018. [13] 中华人民共和国住房和城乡建设部.高层民用建筑钢结构技术规程:JGJ 99—2015[S]. 北京:中国建材工业出版社, 2015. -
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