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在地震区采用框架等结构有一定的局限性,主要是其刚度不够、侧向位移大,往往超过规范规定的允许侧移值。如果采用墙体结构,就可避免一些梁柱连接的困难,柱的延性不足的问题亦不复存在。墙体结构的另一个优点是侧移和水平荷载都很小,故由于侧移造成的破坏不会很大,而这对于有些结构是很严重的。换言之,如果采用墙体结构,则地震时非承重结构的破坏将比较小,因为它的侧向位移比框架小。数年前马拿瓜(中美尼加拉瓜首都) 震害调查有力地证明了这一点。有一幢带承重墙的建筑,地震对其主体结构和建筑装修破坏甚小;而框架结构的部分主体和室内装修破坏得就很严重。墙体设计的目标与框架设计类似,即要考虑
The use of frameworks and other structures in the seismic zone has certain limitations, mainly due to its insufficient rigidity and large lateral displacements, which often exceed the allowable lateral shift values specified in the specifications. If the wall structure is adopted, the difficulty of connecting the columns and columns may be avoided, and the problem of insufficient ductility of the columns will no longer exist. Another advantage of the wall structure is that the lateral and horizontal loads are small, so the damage caused by the lateral displacement will not be large, and this is very serious for some structures. In other words, if a wall structure is used, the damage of non-load-bearing structures during an earthquake will be less, because its lateral displacement is smaller than the frame. The earthquake damage investigation in Managua (the capital of Nicaragua between China and the United States) strongly proved this point a few years ago. There is a building with a load-bearing wall. The earthquake destroys the main structure and the decoration of the building very little. The main parts of the frame structure and the interior decoration are damaged very badly. The goal of wall design is similar to the design of the framework, that is to consider