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一、引言评定结构的抗震性能,国内目前一般采用足尺房屋和缩小比例的模型房屋侧向加载的试验方法。其缺陷是不能得出每片墙的实际承载能力和刚度,不便于与理论分析方法进行对比。在确定墙片的抗剪强度时,一般均依据单层矩形截面墙片的试验结果,缺少两者之间在同等条件下的直接对比试验,也存在强度试验的边界与实际房屋墙片受力的边界不尽相同的问题。本试验研究主要通过带翼缘不同开洞和配筋的五层模型墙片,与对应的单层模型墙片的对比试验和弹塑性分析结果,探讨多层墙片抗剪强度和刚度的合理简化计
I. INTRODUCTION To evaluate the seismic performance of structures, domestically-used full-scale houses and reduced-scale model house lateral loading test methods are generally used. The defect is that the actual bearing capacity and stiffness of each wall cannot be obtained, and it is not convenient to compare with theoretical analysis methods. In determining the shear strength of a wall sheet, generally based on the test results of a single-layer rectangular section wall sheet, a direct comparison test between the two under the same conditions is lacked, and there is also a boundary between the strength test and the actual wall stress of the house wall. The boundaries are not the same. This test study is mainly based on the comparative tests and elasto-plastic analysis results of the five-layer model wall sheet with different openings and reinforcements on the flange, and the corresponding single-layer model wall sheet, to explore the reasonable shear strength and stiffness of the multi-layer wall sheet. Simplified meter