钢筋混凝土框架剪力墙+支撑结构在公共建筑中的优化设计

Reinforced Concrete Frame Shear Wall + Support Structure Optimization Design in Public Buildings

随着经济高速发展,出现了越来越多的大跨度公共建筑。对此类建筑进行结构设计时,不仅要考虑安全性,还必须考虑其使用功能会不会受影响,这些都给此类结构的设计带来一定的难度。通过在框架剪力墙结构的基础上,加设一定比例的钢支撑,对此类公共建筑进行优化设计,使建筑结构在占用空间很小且造价不会增加太多的情况下,有效地提高结构的抗震性能。使用PKPM建立框架结构、框架剪力墙结构、框架支撑结构、框架剪力墙+支撑结构(弹性层间位移角限值取1/800)以及框架剪力墙+支撑结构(弹性层间位移角限值取1/1 000)五类模型,并且对比其使用功能、地震力、造价以及耗能特性,对结构进行优化设计。

With rapid economic development,there are more and more long-span public buildings.For this kind of building structural design,not only security,but also functionshave to be considered.These bring certain difficulty to design of such structures.Through adding a certain proportion of steel bracings to frame-shear wall structures,optimization of such a public building structure was conducted.Thistakes small occupied space and will not increase too much cost,while effectively improving seismic performance of the structures.Using PKPM,frame structure,frame-shear wall structure,braced frame structure,frame-shear wall+bracing structure(elastic inter-story drift ratio limit of 1/800)and frame-shear wall+bracing structure(elastic inter-story drift ratio limit of 1/1 000)were built,and theservice function,seismicforces cost and energy dissipation propertieswere compared.Optimization of the structure design was conducted.