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

在本项目中，开发了几种实用的设计方法，用于寻找建筑结构的多级地震反应约束设计，使得设计（谱兼容）中等地震运动和设计（谱兼容）的所有设计平均最大反应量。大地震运动不会超过规定的限制。主要研究结果如下：1.剪切型建筑物层间位移的平均最大塑性分量比的分布在设计大震作用下几乎是均匀的，只要该建筑物被设计成在设计中震作用下层间位移是均匀的.本文提出了一种求解平面弹性刚架在给定基本自振周期和基本振型下的杆件刚度的理论。在此基础上，提出了平面结构反应约束设计的实用方法， 关于我们 GS承受设计中等地震。提出了一种多级反应约束设计方法，即寻找满足两种反应约束的平面框架，一种是设计中震时的反应约束，另一种是设计大震时的反应约束.提出了一种求平面框架非弹性反应约束设计的方法，使得在设计大震作用下，各构件的平均最大塑性比等于规定值.针对桩承剪力型建筑，提出了反应约束设计方法，针对剪力型建筑，提出了场地相关设计反应谱的设计方法.提出了求解一维分布质量结构响应约束设计的两种方法，即级数展开法和伽辽金法。本文提出了一种计算方法，它可以生成一组按设计应变水平确定的双层网架响应-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