钢筋混凝土建筑结构的抗震性能评估及其加固工艺浅析

Seismic Evaluation of Reinforced Concrete Structures and Analysis of Reinforcing Technology

依据当前我国正处于实际运用状态的《建筑结构抗震规范》(修订版),不管是已建成建筑结构的抗震评估与加固,还是处于初步规划阶段的建筑抗震设计,均通过小震弹性承载力对抗震延性构造进行计算,基于此措施,实现"大震不倒、中震可修及小震不坏"的抗震设防目标。针对抗震延性构造措施不符现行规范的既有建筑结构,对其实施评估工作,如若仅开展小震弹性承载力计算,则难以实现"大震不倒"的既定目标。通过以结构构件变形与结构层间位移作为抗震的性能目标,基于定量层级实现既有钢筋混凝土建筑结构,对其抗震性能实施综合评估,并分析具体加固工艺。

Based on the ＂seismic codes of building structures＂ in China nowadays ,whether seismic assessment and reinforcement of existing structures or the seismic design of buildings at the preliminary planning stage, their anti-seismic ductility structure analysis are based on the sma 11 seismic elastic bearing capacity, and through this method relies the anti-seismic goal of ＂no collapse under strong earthquake, repairable under moderate earthquake, and no damage in small earthquake＂. Aiming at the existing structures that their seismic ductility was not conformity with current specification, its need to be assessed ,and if the small seismic elastic beating capacity was analyzed ,the goal of ＂no collapse under strong earthquake＂. Paper taking the structure deformation and the structure displacement between the layers as the anti-seismic performance goal,based on the existing reinforced concrete building, comprehensively as sesses its anti-seismic property, and analyzes its reinforcement process.