格构式混凝土墙结构抗震性能分析-建筑与土木工程专业论文.docxVIP

Masters Degree Thesis Research on Structural Seismic Capability for Latticed Concrete Wall Master Candidate: Sun Yue Tutor: Prof. Xiong Lihong Subject : Civil Engineering Specialty: Engineering Mechanics Research Field: Structural Seismology Institute of Engineering Mechanics, China Earthquake Administration Harbin·China May, 2013 摘要 摘 要 I I 摘 要 水泥聚苯模壳格构式混凝土墙体是在水泥聚苯模壳内浇筑混凝土梁柱 组合而成，具有轻质、抗震、保温、防火、施工方便、节约成本等特点，是 符合国家环保节能要求的一种新型墙体。由于该种墙体从国外引进时间尚不 长，研究和应用尚处于起步阶段。 本文介绍了大连理工大学的六片墙体抗侧性能试验，分析了呈剪切破坏 的两片墙体的试验研究结果，并将其计算公式计算结果相比较，在此基础上， 提出了考虑加入水平钢筋作用的抗震剪切强度验算公式，使计算公式的物理 意义更加明确。此外，还研究了不同破坏墙体层间剪力及其层间位移，确定 了墙体的恢复力特征曲线。 本文分别以两个六层（不同房屋开间）和一个七层（层高均为 3m）的 结构为研究对象，通过选取 12 条具有代表性地震动进行非线性动力时程计 算来考察水泥聚苯模壳格构式混凝土墙体结构在不同场地条件、不同加速度 峰值条件下三种工况下房屋的地震反应及破坏状态。 计算结果表明，按 7 度抗震设防，在 0.1g 地震加速度作用下，三栋结构 均满足抗震设防要求；在 0.2g 地震加速度作用下，三栋结构均满足抗震设防 要求，但六层（4.8m 开间）和七层（3.6m 开间）的房屋均比六层（3.6m 开 间）的房屋破坏严重；在 0.3g 地震加速度作用下，只有六层（3.6m 开间） 结构满足抗震设防要求。 关键词：水泥聚苯模壳格构式混凝土墙；非线性地震反应分析；极限承载力 AB ABSTRACT III III ABSTRACT Expansive polystyrene granule cement latticed concrete wall (EPSC latticed concrete wall) is a composite wall consists of the expansive polystyrene granule cement and the interior latticed concrete frame. Not only having the advantages as lightweight, earthquake resistance, thermal insulation, easy to install, this new type of wall also meets the national environmental protection and energy saving requirements. However, the research and application is still in infancy in China. Six lateral resistance tests are performed and the results of two walls, which experienced shear failure, are analyzed. Comparing with the empirical formula from paper [27], a new equation is derived with the consideration of the seismic shear strength from the lateral reinforcement bars. The results from the new equation fit the experiments data better. In addition, the shear force and story displacement of each damaged wall are analyzed in order to determine the restoring force characteristic curve. In this thesis, two six-story struct