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为研究建筑模网混凝土这种新型免模板组合结构体系的抗震性能,该文首先进行了6个模网混凝土矮墙体和3个模网混凝土高墙体试件的抗震拟静力试验,研究了这种新型墙体的破坏过程和破坏形态、滞回特性、承载力和变形能力等。在此基础上建立了模网混凝土墙体的非线性有限元模型,并进行了墙体受力全过程的模拟分析。研究表明:模网混凝土墙体的破坏过程与普通混凝土墙体基本相似,6个矮墙体试件均发生剪切破坏,而3个高墙体试件则分别发生弯曲破坏和纵筋粘结破坏。模网混凝土矮墙表现出较好的抗剪能力,但变形能力略低于普通钢筋混凝土墙体,发生弯曲破坏的高墙体试件表现出较好的变形能力,而含有纵筋搭接的试件变形能力偏低。所建立的有限元模型可较好的模拟试件至中度破坏阶段的滞回曲线、破坏过程和破坏形态。
In order to study the seismic behavior of the new formwork-free modular composite system, this paper first studies the seismic quasi-static tests of six concrete-covered low-wall and three-wall concrete high-wall specimens, The destruction of this new wall of the process and damage morphology, hysteresis characteristics, bearing capacity and deformation capacity. On this basis, the nonlinear finite element model of the concrete-filled concrete wall is established, and the simulation analysis of the whole process of the wall stress is carried out. The results show that the failure process of the concrete-filled concrete wall is basically similar to that of the ordinary concrete wall, the shear failure of the 6 short-wall specimens occurs and the bending damage and longitudinal reinforcement of the 3 high-wall specimens occur respectively damage. The low modulus concrete wall showed better shear resistance, but the deformation capacity was slightly lower than ordinary reinforced concrete wall. The high wall specimens with bending failure showed better deformation ability, Deformation of the specimen is low. The established finite element model can simulate the hysteresis curve, the failure process and the failure mode of the specimen to the moderate damage stage.