新型消能减震复合墙板性能分析研究

AN ANALYSIS ON A NEW TYPE OF PREFABRICATED ENERGY DISSIPATION COMPOSITE WALLBOARD

针对传统复合墙板强度低在地震作用易产生破坏的问题,提出一种新型预制装配式消能减震复合墙板,介绍其构造和特点。采用ABAQUS软件建立了新型消能减震复合墙板的简化有限元模型,对其进行了拟静力往复荷载作用下的数值仿真分析,分析了新型预制装配式消能减震复合墙板的耗能能力,延性及刚度退化,并与传统复合墙板进行了对比。结果表明:新型预制装配式消能减震复合墙板滞回曲线饱满,试件在大变形作用下未出现明显的塑性区,具有良好的延性、变形能力和耗能能力,在地震作用下能较好的保护主体结构,避免主体结构发生较大破坏,提高结构在地震作用下的安全性。

Based on the problem that traditional composite wallboard are prone to be damaged during the action of earthquake, this paper presents a new type of prefabricated energy dissipation composite wallboard, and introduces its structure and characteristics. A new type of energy dissipation and simpli- fied finite element model of damping composite wallboard is built by using ABAQUS software, aims to carry on the numerical simulation analysis of pseudo-static effect under cyclic loading, as well as analy- zing its energy dissipation capacity, ductility and stiffness degradation, and compared with the traditional composite wallboard. The results show that the new type of prefabricated energy dissipation composite wall is full of hysteresis curve, and the specimen has no obvious plasticity area under the big deforma- tion. It has good ductility, deformation ability and energy dissipation capacity, under the action of earth- quake can better protect the main structure, to avoid the main structure of a greater damage to improve the structure under the action of the safety of the earthquake.