【作者】 李健；

【导师】 季静；

【作者基本信息】 华南理工大学 ， 结构工程， 2012， 硕士

【摘要】 钢筋混凝土剪力墙是建筑结构中重要的抗侧力及承重构件，其承载能力和变形性能对结构的抗震性能有重要影响。2010年开始实施的《建筑抗震设计规范》（GB50011-2010）新增了建筑抗震性能化设计原则，但是尚无给出地震作用下钢筋混凝土剪力墙各性能水准下量化的变形指标，在抗震设计过程中无法对剪力墙构件性能状态做出正确的评估。因此本文主要对钢筋混凝土剪力墙的抗震性能及其在各个性能水准的变形限值进行研究，本文主要内容包括以下几个方面：（1）总结了目前国内外学者对钢筋混凝土剪力墙的抗震性能研究结果。论述了截面形状、混凝土强度、分布钢筋、轴压比、高宽比或剪跨比、实际配筋弯剪比等因素对剪力墙抗震性能的影响。同时收集了76个国内的剪力墙试验结果，分析了各参数对钢筋混凝土剪力墙破坏形态的影响，提出了方便实际工程应用的破坏形态判定标准。（2）选取了若干剪力墙试件采用ABAQUS进行模拟，混凝土本构采用损伤塑性模型，钢筋本构采用理想弹塑性模型，将荷载-位移曲线和破坏形态与试验结果进行对比，发现计算结果与试验结果吻合较好，表明在选取合理的材料本构及有限元参数的情况下，有限元模型在模拟分析钢筋混凝土剪力墙受力状态、破坏形态及变形性能的合理性。（3）简述了对应各个性能状态的材料应变的制定。根据我国现行规范设计了520个矩形截面整体剪力墙构件，利用有限元软件对其受力状态及变形性能进行研究，并考察高宽比、轴压比设计值、实际配筋弯剪比、暗柱配箍特征值对构件各性能水准的变形指标的影响。在对上述有限元分析结果进行归纳统计的基础上，提出基于我国规范的钢筋混凝土剪力墙在各个性能水准的变形限值，为工程应用提供参考。更多还原

【Abstract】 Reinforced concrete (RC) shear walls is important lateral force resisting andload-bearing components in building structure, and its carrying capacity and deformationcharacteristics has important implications on the structure seismic performance."Code forSeismic Design of Buildings"(GB50011-2010) increase seismic performance designprinciples, but not given quantized deformation indicators corresponding to each performancelevel of RC shear walls under earthquake. Therefore, the seismic design process can not makea correct assessment of performance status of shear wall components. This paper studiesdeformation limits corresponding each performance level and the seismic performance of RCshear walls, The main content of this paper include the following aspects:(1) Summarizes the current domestic and foreign scholars on the seismic performance ofreinforced concrete shear walls findings. Discusses the the impact of cross section shape,concrete strength, distribution of reinforced, axial compression ratio, height to width ratio orshear span ratio, the actual reinforcement flexural capacity and shear capacity ratio and otherfactors on the shear wall seismic performance. Collected76shear wall specimen, and analysisof various parameters on the failure modes of reinforced concrete shear wall. A new failuremodes criteria is proposed to facilitate the practical application.(2) Using ABAQUS to simulate a number of shear wall specimens.Constitutive of theconcrete use damage plasticity model. Constitutive of Reinforcement use elastic-perfectlyplastic model. Load-displacement curves and failure modes of the calculated results and testagree well show that the case of selecting appropriate material constitutive and finite elementparameters, finite element model analysis of RC shear walls in the simulation of stress state,failure modes and deformation properties of correctness.(3) Briefed the formulation of performance deformation indicators based on the materialproperties.520rectangular cross section shear wall components were designed in accordancewith current codes and its stress state and deformation properties were studied over finiteelement software. Effection on deformation limits corresponding to each performance level of aspect ratio, design axial load ratio, flexural capacity-shear capacity ratio, stirrupcharacteristic value are investigated. Based on the summarized statistics of the above finiteelement analysis results,deformation limits in each performance level were presented toprovide a reference for engineering applications.更多还原