论文部分内容阅读
按配筋率的高低,混凝土空心砌块房屋主要分为配筋砌块砌体结构和约束砌块砌体结构。本文针对对这两种房屋结构的抗震性能,将国内外研究成果进行汇总、进行综合分析,重点分析破坏机理和抗震能力。主要结论是:破坏机理方面,配筋砌块砌体和约束砌块砌体房屋结构的底部破坏较重,但上部破坏较轻,破坏模式兼有弯曲与剪切破坏的特征。抗震能力方面,配筋砌块砌体具有良好的延性,其翼墙、连梁和楼板对地震作用方向墙体的抗震性能有明显的提升作用;构造柱-芯柱体系约束砌块砌体结构的抗震能力较高,能够达到小震不坏、中震可修、大震不倒的抗震设防要求。
According to the level of reinforcement ratio, concrete hollow block houses are divided into reinforced block masonry structure and bound block masonry structure. In this paper, aiming at the seismic performance of these two kinds of structures, the research results at home and abroad are summarized and analyzed synthetically. The failure mechanism and seismic capacity are analyzed emphatically. The main conclusions are as follows: In the aspect of failure mechanism, the bottom of reinforced masonry masonry and constrained masonry structures is more damaged at the bottom, but the upper part is less damaged, and the failure mode is characterized by bending and shear failure. In terms of seismic capacity, the reinforced block masonry has good ductility, and its wing walls, even beams and slabs have a significant improvement on the seismic performance of the wall in the direction of seismic action. The structural column-column system restrained block masonry structure The seismic capacity is higher, to achieve a small earthquake is not bad, moderate earthquake repairable, earthquake does not fall seismic fortification requirements.