异型柱砼空心砌块组合结构12层房屋动力特性试验研究

Study on vibration characteristics of the twelve-story building of non-rectangular column with small-size hollow concrete blocks

为了研究异型柱砼空心砌块组合结构小高层 (1 0～ 1 5层 )房屋的动力特性 ,进行了 1 /3 .2模型 1 2层结构的模态试验及拟动力试验 ,获得了结构的周期、振型、动力放大系数等参数 ,研究结果表明 :砼空心砌块对结构动力特性影响很大 ,对刚度矩阵的贡献尤为突出 .异型柱空心砌块结构由于其特殊的施工方式 (先砌墙 ,后浇柱 ) ,使其在结构上既有别于普通的框架填充墙结构 ,又和剪力墙或壁式框架不同 ,故在地震作用下的内力计算还有待于进一步研究 .

In order to study the vibration characteristics of the non rectangular column with small size hollow concrete blocks, the testing on the 1:3.2 modal of 12 stories with this system was carried out and the modal analysis of test was carried out. The modal analysis result shows that the vibration characteristics of this system is different from the frame or the shell building and the small size hollow concrete blocks play an important role as far as the difference and the matrix of stiffness of the system is concerned. The special construction method (masonry before column dressing) makes the system different from others too.