钢筋混凝土联肢剪力墙弹塑性分析

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发布时间：2021-12-06

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利用三维非线性分析程序 CANNY 中的纤维模型模拟墙肢、单轴弹簧模型模拟连梁，对钢筋
混凝土联肢剪力墙进行了弹塑性分析；在与试验结果进行对比分析的基础上，选取了用于钢筋混凝
土剪力墙非线性分析的三线型骨架滞回模型和合适材料的应力一应变关系进行建模；通过数值计算
分析了轴压比、墙体分布钢筋配筋率、边缘构件配筋率、连梁纵筋配筋率对钢筋混凝土联肢剪力墙
的承载力、延性、破坏形态等的影响。结果表明：轴压比、墙体分布钢筋配筋率、边缘构件配筋率对
钢筋混凝土联肢剪力墙的受力性能影响较大，连梁的纵筋配筋率影响较小；所选模型具有有效性。
关键词：钢筋混凝土；联肢剪力墙；数值模拟；弹塑性分析；纤维模型
中图分类号：TU313 文献标志码：A
Elasto—plastic Analysis of Reinforced Concrete Coupled Shear W alls
MA Zhi—lin ，SHI Qing—xuan ，W ANG W ei。
(1． School of Civil Engineering，Xi’an University of Architecture and Technology，Xi’an 710055，Shaanxi，China；
2．Xi~iang Architecture Design and Research Group，／．)rtimqi 830002，Xinjiang，China)
Abstract：The fiber m odel in 3-dimensional nonlinear analysis program CANNY was used to
simulate walls， and the uniaxial spring m odel was adopted to sim ulate beams． Elasto—plastic
analysis of reinforced concrete coupled shear wall was carried out． Based on the comparison
analysis with test result，the trilinear skeleton hysteresis m odel and proper material stress—strain
relations were selected for simulating reinforced concrete coupled shear wall mode1． Through
numerical calculations， the influences of design param eters， such as axial compression ratio，
reinforcem ent ratio of steel bars for wall distribution．reinforcem ent ratio of longitudinal bars for
beam s as well as reinforcem ent ratios of marginal members on bearing capacity，ductility，failure
shaPe for reinforced concrete coupled shear walls were considered． The results indicate that the
axial com pression ratio，reinforcem ent ratio of steel bars for wall distribution，reinforcements of
marginal members significantly affect the mechanical behavior of reinforced concrete coupled
8heflr wall5，and reinforcement ratio of longitudinal bars for beams less affect the behavior the
analysis m odel iS proved tO be effective．
Key words：reinforced concrete；coupled shear wall；num erical sim ulation；elasto—plastic analysis；