Multilevel earthquake-response constrained design methods of building frames with system performance parameters as control variables

在这个项目中，已经开发了几种实用的设计方法来寻找建筑结构的多级地震反应约束设计，这样所有的设计平均最大响应量对设计（频谱兼容）中等地震运动和设计（频谱兼容）大地震运动不会超过规定的限制。主要研究结果如下：1。在设计强震合集下，受剪建筑物层间位移的平均最大塑性分量比分布几乎是均匀的，只要该建筑物的设计使其在设计中地震合集下的层间位移是均匀的。提出了一种求平面弹性建筑框架在给定基本自然周期和基本特征模态下构件刚度的理论。在此基础上，提出了一种适用于设计中地震作用下的飞机结构响应约束设计的实用方法。提出了一种多级响应约束设计方法，用于寻找同时满足设计中地震和设计大地震响应约束的平面框架。提出了一种求平面框架的非弹性响应约束设计的方法，使得在设计大地震集合下，每个平均最大构件塑性成分比等于规定值。针对桩支剪力式建筑，提出了一种响应约束设计方法，并针对剪力式建筑的场地相关设计响应谱进行了研究。本文提出了级数展开法和伽辽金法两种求解一维分布质量结构响应约束设计的方法。本文提出了一种计算方法，根据指定设计应变水平的参数，生成垂直激励双层网格响应应变约束设计的有序集。少

In this project, several practical design methods have been developed of finding multilevel earthquake-response constrained designs of building structures, such that all the design mean maximum response quantities to design (spectrum-compatible) moderate earthquake motions and to design (spectrum-compatible) major earthquake motions would not exceed the prescribed limits. The main results are as follows:1. The distribution of mean maximum plastic component ratios of interstorey drifts in a shear building has been found to be almost uniform under an ensemble of design major earthquakes so far as the building has been designed so that the interstorey drifts would be uniform under an ensemble of design moderate earthquakes.2. A theory has been developed of finding member stiffnesses of a plane elastic building frame for specified fundamental natural period and fundamental eigenmode. Based on this theory, a practical method has been developed of response constrained design of plane buildin … More gs subjected to design moderate earthquakes.3. A multilevel response constrained design method has been developed of finding plane frames which satisfy both response constraints, one for design moderate earthquakes and the other for design major earthquakes.4. A method has been developed of finding the inelastic response constrained designs of plane frames such that each mean maximum member plastic component ratio under an ensemble of design major earthquakes is equal to the prescribed value.5. A response constrained design methods has been developed for pile-supported shear buildings, and for shear buildings for site-dependent design response spectra.6. Two methods have been developed of finding response constrained designs of one- dimensional distributed mass structures, by means of a series expansion method and of a Galerkin method.7. A computational method has been developed of generating an ordered set of response-strain constrained designs of vertically excited double-layer grids, with respect to a parameter which specifies the design strain level. Less