构件截面尺寸对混凝土框架-配筋砌体混合结构性能影响  

Study on the Impact of Component Section Size on Hybrid Masonry Structure with RC Framing

作　　者：郭秀芹 马建勋[2] Guo Xiuqin;Ma Jianxun(Department of Civil and Architectural Engineering,Xi'an Jiaotong University City College,Xi'an 710018,China;School of Human Settlements and Civil Engineering,Xi'an Jiaotong University,Xi'an 710049,China)

机构地区：[1]西安交通大学城市学院土木建筑工程系,西安710018 [2]西安交通大学人居学院,西安710049

出　　处：《科技通报》2022年第11期62-66,共5页Bulletin of Science and Technology

基　　金：陕西省教育厅专项科研计划项目(项目编号:19JK0495)。

摘　　要：为了研究混凝土框架-配筋砌块砌体混合结构在水平荷载作用下的性能,以及构件不同截面尺寸对混合结构性能的影响程度,本文结合理论分析,运用有限元软件建模分析梁截面高度、柱截面高度、砌体墙高宽比在水平荷载作用下对框架、配筋砌体墙协同工作性能的影响,并对比分析理论的计算结果。结果表明:砌体墙高宽比对结构刚度和承载力的影响最大,高宽比由1.0升到1.6时,砌体剪力墙的初始刚度由384.9/kN·mm-1降到258.8/kN·mm-1,降幅32.76%,整体结构的极限荷载也随之下降,由901.1 kN降至761.3 kN。柱截面高度对结构的影响次之,柱截面高度由300 mm增加到450 mm,结构极限荷载由763.3 kN增之865.9 kN,增率13.45%。梁截面高度的影响很小。研究认为应控制砌体墙的高宽比。通过构件截面尺寸对混合结构性能影响的模拟研究,可为混凝土框架-配筋砌块砌体混合结构的推广实践提供参考。In order to study the performance of Hybrid masonry structure with RC framing under horizontal load and the influence of different member section sizes on the performance of hybrid structure, combined with theoretical analysis, this paper uses finite element software to model and analyzethe influence of beam section height, column section height and masonry wall height width ratio on the cooperative performance of frame and reinforced masonry wall under horizontal load. Andthe theoretical calculation results are compared and analyzed.The results show that the height width ratio of masonry wall has the greatest influence on the structural stiffness and bearing capacity. When the height width ratio increases from 1.0 to 1.6, the initial stiffness of masonry shear wall decreased from 384.9/kN·mm-1to 258.8/kN·mm-1, with a decrease of 32.76%. The ultimate load of the whole structure also decreases, from 901.1 kN to 761.3 kN. The influence of column section height on the structure is the second. The column section height increases from 300 mm to 450 mm, and the structural limit load increases from 763.3 kN to 865.9 kN, with an increase rate of 13.45%.The influence of beam section height is very small. It is considered that the height width ratio of masonry wall should be controlled.The simulation study on the influence of member section size on the performance of hybrid structure can provide a reference for the popularization and practice of Hybrid masonry structure with RC framing.

关 键 词：构件截面尺寸 协同工作 极限荷载 初始刚度 

分 类 号：TU398[建筑科学—结构工程]