鋼構架附連接橋之彈塑性分析

Elastic-Plastic Analyses for Steel Frames Connected with Corridor Bridges

林彥碩(Yan-Shih Lin)

指導教授 ： 金文森

朝陽科技大學/理工學院/營建工程系/碩士(2009年)

摘要

目前台灣及許多國家已有相鄰的兩棟建築物利用橋樑作連接，也可稱「雙子式設計」，例如台灣台中的龍邦世貿大樓及馬來西亞的雙子星大樓等等。連接橋一般又被稱為「空中走道」或「天橋」。連接橋用作居民交通外，也可以當作火災時，從一座塔樓到另外一座的逃生口。但是當地震來臨時，連接橋樑是否能抵擋住強震，這也是我們需要分析探討的。本研究利用SAP2000 程式第七版的非線性推倒分析，分析此類鋼結構建築物能承受多大的載重、如何變形與破壞、塑性鉸位置、以及軸力、剪力、彎矩的分佈情形。構架分析案例有不同樓層數、不同跨度、不同柱高度。本文對連接橋樑不同的設置位置及增設支撐架進行分析，分析所得之結果再作差異性比較。

關鍵字

結構 ； 橋樑 ； 推倒分析 ； 塑性鉸

並列摘要

At present, two adjacent buildings connected with bridges exist in Taiwan and many other countries. It is called as the "twin design", such as the Longbang Trading Building in Taichung, Taiwan and the Petronas Twin Towers in Malaysian. The bridge in general is also known as "corridor" or "flyover". Bridge can be used for resident transportation. It also can be used as an escape
exit from a tower to another tower in case of fire. But, we need to analyze whether the bridge can resist strong earthquakes or not. The nonlinear pushover analysis of program SAP 2000 version 7 is used. The loading capacities of such frames, deflections and collapse of frames, the locations of plastic hinges, the axial load, shear force, and bending moments are analyzed. Analysis cases of such frames include different stories, different spans, and different column heights. Different location of bridge between two frames and bridge supported by additional trusses are studied. Results of analyses are used for comparison.

並列關鍵字

plastic hinge ； Pushover Analysis ； Bridge ； Structure

參考文獻

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