不同加强型夯土墙体拟静力试验研究

为推动生土建筑的可持续发展,提升生土建筑的抗震性能,设计并制作了三种改进型夯土墙体,分别为无边框加强型夯土墙体、混凝土边框加强型夯土墙体及钢边框加强型夯土墙体。对不同加强型夯土墙体进行拟静力试验,研究墙体在水平力作用下的破坏模式、裂缝开展情况和耗能能力,以及滞回、骨架曲线特性,同时研究新型墙体结构的抗震性能。试验结果表明,相较于传统(无加强型)夯土墙体,无边框加强型夯土墙结构的各项性能指标均无明显提升。而边框加强型墙体结构可有效提高墙体的刚度及耗能能力,具有良好的变形能力和水平抗剪承载力。

Experimental study on quasi-static test of the different reinforced rammed earth structures

In order to promote the sustainable development of raw soil construction and improve the seismic performance of raw soil construction,three types of modified rammed earth walls are designed and manufactured,they are no frame reinforced rammed earth walls,concrete frame reinforced rammed earth walls and steel frame reinforced rammed earth wall. The quasi-static test of different reinforced rammed earth walls is carried out to study the failure mode,crack development and energy dissipation capacity of the wall under horizontal force,as well as the hysteresis curve and skeleton curve characteristics,and to research new type wall structure seismic performance. The test results show that compared with the traditional rammed earth wall,the performance indicators of the rammed earth wall structure with no frame are not significantly improved. The frame-enhanced wall structure can effectively improve the wall stiffness and energy consumption,and has a good ability to deform and horizontal shear capacity.