【摘要】 为研究轻型竹结构房屋的抗震性能,通过对足尺2.44 m×3.66 m×2.6 m的竹结构模型的振动台实验和推覆实验,讨论竹结构模型房屋的动力特性,确定竹结构房屋在地震作用下的破坏机理,研究了结构动力特性及地震反应的变化规律。试验结果表明:在0.3g以下的地震中,模型处于弹性状态;即使经过多次重复地震,模型结构仍然不会发生倒塌,而且破坏也很轻微。模型结构在0.1g、0.3g、0.4g和0.5g的地震中,模型结构的最大层间位移角小于规范中的限值。试验研究表明,轻型竹结构房屋能够满足我国建筑抗震设计规范中的8度抗震设防要求。更多还原

【Abstract】 To study aseismic behavior of a lightweight bamboo frame residential house,shake table tests were conducted using a full-scale model simulating a first floor room unit of a typical two-storey house,with the size of 2.44m multiplied by 3.66m in plane and 2.6m in height.Earthquake-lateral-resistance was provided by glubam shear walls around the perimeter of the model.The test results indicated that the model is in the elastic state and has essentially no visual damage for 0.3g PGA.The tested glubam house could withstand under action of three different seismic ground motions within a range of 0.5g PGA without collapse.The observed damage remained noncritical for 0.5g PGA.Inter-story drift in the first storey was below the limited values in most codes.After shaked with 0.5g PGA,the model was retested under a pushover loading condition and the result showed its sufficient deformability.The tests revealed that the glubam house can meet the requirements of the seismic intensity of 8° described in Chinese aseismic design code.更多还原