房屋結構非線性分析方法之比較及簡化研究

Abstract

目前性能設計法已成為重要之設計理念，因此結構非線分析亦順理成章的成為結構分析重要的一環。 而對於結構非線分析方法來說，本論文則以三種方法來作一比較，以評估此三種方法之效能。此三種方法分為別1. 位移係數法(Displacement Coefficient method) 2.容量譜法(Capacity Spectrum method) 3.歷時法(Time History method)。 另一方面，本論文亦將會以勁度分配觀念，分配三維結構分析時所產生之垂直向扭矩於各構架上。藉此分配往後我們可直接以二維結構無垂直向扭矩之分析結果預估三維結構分析的結果，以減少分析所需的時間。

Nowadays, performance-based design became more and more popular for building design, so that inelastic analysis became an important tool to solve this problems. In this research, the effective of three inelastic analysis methods will be compared. They are Displacement Coefficient method, Capacity Spectrum method and Time History method. Secondly, we will also use the concept of lateral stiffnesses of frames to distribute horizontal load to each frame. According to this concept, one can distribute the torsion due to horizontal loading in 3D structure to frames. Also according to this technique, one can use 2D analysis to estimate results of 3D analysis.