论文部分内容阅读
芦山地震后,中国住房与城乡建设部和中国地震局联合组织成立专家组,对雅安市重要的公共建筑及部分民居开展了应急评估工作,对574栋应急评估建筑的震害进行了统计分析。总结分析了砖木结构、砌体结构和框架结构的震害特征,得到了不同年代建筑的破坏比及各类结构在不同烈度下的破坏比和中小学建筑破坏比。分析表明:经过抗震设计的房屋的抗震性能明显优于非抗震设计房屋;钢筋混凝土框架结构的抗震性能优于砌体结构,进而优于砖木结构。中小学房屋的抗震性能较好,优于建筑平均水平;农村自建老旧房屋是抗震薄弱环节。采用隔振技术的建筑具有较好的抗震性能。
After the Lushan Earthquake, China’s Ministry of Housing and Urban-Rural Development and China Earthquake Administration jointly set up an expert group to conduct emergency assessment work on important public buildings and some residential areas in Ya’an City. The statistical analyzes were carried out on the damage of 574 emergency assessment buildings. The damage characteristics of masonry, masonry and frame structures are summarized and analyzed. The damage ratios of buildings in different ages and the damage ratios of various structures under different intensities and the damage ratios of primary and secondary schools are obtained. The analysis shows that the seismic performance of the earthquake-proofed buildings is obviously better than that of the non-aseismic design houses. The seismic performance of the reinforced concrete frame structure is better than that of the masonry structure and better than the brick-wood structure. The seismic performance of primary and secondary schools is better than the average level of the building; old self-built houses in rural areas are the weak points of earthquake resistance. Buildings using vibration isolation technology have better seismic performance.