震损RC框架结构抗震冗余度加固及振动台试验研究

Redundancy-based Seismic Retrofit and Shaking Table Test of RC Frame Structure Damaged by Earthquake

为进一步研究和探索基于冗余度理论的抗震设计方法在既有建筑和震损建筑抗震加固中应用的可行性,本文采用文献[1]中基于冗余度理论的抗震设计方法对文献[2]中试验后的RC框架结构进行加固处理,并对加固后的RC框架结构进行振动台试验研究。研究结果表明,历经各级激励后模型1的损伤程度远小于模型2,模型1具有更好的抗震性能和更大的抗倒塌储备能力,同时也表明采用增大结构抗震冗余度的加固方案是合适可行的。

In order to further study and explore the feasibility of the application of the redundancy-based design method in the seismic retrofit of existing buildings and damaged buildings,the RC frame structures after the test are retrofitted using the redundancy-based design method,and the shaking table test for the retrofitted RC frame structures is performed. The research results show that,after all levels of testing,the damage degree of the model 1 is far less than that of the model 2,the model 1 has better seismic performance and greater anti-collapse capacity reserve. It also shows that the retrofit scheme by increasing structure seismic redundancy degree is reasonable and feasible.