对混凝土剪力墙静态破碎效果的试验研究

To investigate the influence of hole forming methods and the thickness of shear wall on the static crushing effect of concrete shear walls, static crushing tests of nine concrete shear wall specimens were carried out. Two crushing methods were adopted: one is drilling holes on the side of the wall obliquely downwards and injecting static crushing agent for crushing, and the other is drilling holes perpendicular to the top surface of the wall and injecting static crushing agent for crushing. In order to improve the crushing effect, the vertically distributed steel bars on the side of the wall were cut off with a saw blade after drilling on the side of the wall, and the horizontally distributed steel bars on both sides of the wall were cut off with the saw blade after drilling on the top of the wall. Test results show that with these two crushing schemes, the short side size of the block produced after crushing was the hole spacing or hole edge spacing. After injecting static crushing agent, with the increment of the wall thickness, the average width of the slits of the specimens drilled obliquely on the side increased, while for the specimens drilled vertically on the top surface, the average width of the slits had no obvious correlation with the wall thickness. The order of the crushing effect was: drilling holes on the top of the wall vertically and cutting off the horizontally distributed steel bars> drilling holes on the top of the wall without cutting the steel bars> drilling holes on the side of the wall obliquely downwards and cutting off the vertically distributed steel bars.