基于振动法的建筑墙体装饰抗震裂综合设计研究

Synthetic Design of Anti-seismic Cracking of Building Wall Decoration Based on the Vibration Method

摘要:

为了解决传统建筑墙体装饰抗震裂设计方法中存在稳定性较差、强度折减系数较低的问题，提出了一种基于振动法的建筑墙体装饰抗震裂综合设计方法。分析建筑墙体结构，构建面向数据提取的建筑墙体结构对象模型，根据建筑墙体装饰抗震裂设防的具体要求，以建筑底部框架抗震墙结构为基础，制定出墙体装饰抗震加固设计基本方法。结合具体施工方法，综合考虑了底部框架抗震墙结构的刚度、强度以及延性的影响，实现了建筑墙体装饰的抗震裂设计。实验结果显示，该方法的稳定性比传统方法提高2%，且在不同密度条件下，最大应力和强度折减系数均远大于对比方法，充分说明了加固后能够保证建筑墙体装饰具有较好的抗震裂能力。

Abstract:

To solve the problem of traditional anti-seismic crack design for building wall decoration, i.e., poor stability and a low strength reduction coefficient, a comprehensive seismic design method for building wall decoration based on the vibration method is proposed. Based on analysis of the structure of the wall used in this study, the seismic conceptual design of the building wall was carried out, and a wall structure model, oriented to data extracted, was constructed. According to the specific requirements of anti-seismic crack fortification for building wall decorations, and on the basis of an anti-seismic frame wall structure at the building bottom, the basic design method for the seismic reinforcement of wall decoration was developed. Combined with specific construction methods, the influences of stiffness, strength, and ductility of the wall structure were comprehensively considered, and the seismic cracking design of the wall decoration developed. Experimental results showed that the stability of the proposed method was 2% greater than that of the traditional method; under different densities, the maximum stress and strength reduction factors were much larger than those in the comparative method. This study fully demonstrated that, after reinforcement, improved resistance to shattering of the building wall decoration could be ensured.