多自由度系統非彈性反應需求評估

Evaluation of Seismic Demands of Inelastic multiple-drgree-of-freedom (MDOF) systems

洪立平(Li-Ping Hung)

指導教授 ： 羅俊雄

國立臺灣大學/工學院/土木工程學研究所/碩士(2004年)

https://doi.org/10.6342/NTU.2004.00062

摘要

近年來，在地震工程領域之中，一種創新的觀念稱為「性能設計法」被廣泛的提出討論與研究。因此發展出釵h設計參數用來定量化地震對結構物所造成的災害，試圖能實際應用於工程設計上。
本文中，針對臺灣地區典型的鋼筋混凝土房屋，分為兩種結構型式包括純構架及含牆構架；和三種不同樓高各為四層、六層、十二層，一共六棟經過臺灣建築物耐震設計規範設計之典型的鋼筋混凝土房屋，經由對簡化後的分析模型，利用所選取並調整的地震紀錄，包括了近斷層與遠域的地震力，做非彈性動力歷時分析。最後用統計的方法，來評估地震反應需求。
本文的目的有三；第一、透過了釵h的地震反應需求，來瞭解多自由度系統的特性。第二、提出一個簡單的流程來合理快速的估計結構物受地震作用所產生的側向位移。第三、針對不同的地震反應需求建立其多自由度系統和等值單自由度系統之間的關係。

關鍵字

性能設計法 ； 地震需求 ； 非彈性多自由度系統

並列摘要

There is an innovative approach to earthquake engineering called performance based seismic design. In performance based seismic design, the design index can reflect the structural and non-structural damage that may occur during earthquake ground motion excitations. It is important to get more understandings of the behaviors of the responses of structural systems in order to become design codes for using in practice.
In this study, it focuses on two kinds of typical reinforced concrete buildings with three different elevations in Taiwan. All of them are designed by using Taiwan building codes. Non-linear time history analysis of a detailed analytical model subjected to a suite of representative site-specific ground motions is chose for the estimation of these seismic demands. The focus is on a statistical evaluation of the seismic response of structural systems.
Finally, it gets comprehensive understandings of the inelastic dynamic response of multi-degree-of-freedom structural systems by means of several seismic demands. Then a simplified process that provides quick and reasonable estimates of seismic demand for the MDOF systems is proposed. Also the relationships between the MDOF systems and their corresponding SDOF systems are established.

並列關鍵字

seismic demands ； inelastic MDOF systems ； performance-based design

參考文獻

[13] 羅俊雄、廖文義，2002，「含非結構牆兩層樓構架之耐震試驗」，國家地震工程研究中心初步研究報告。

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