震動台樓房受地震力作用下之電腦模擬與驗證

Numerical and Experimental Study of a Shaking Table Specimen

莊財福(Tsai-Fu Chuang)

《技術學刊》 20卷2期 (2005/06) Pp. 163-173

https://doi.org/10.29507/JT.200506.0007

摘要

本文提出一個反覆裂縫模型(cyclic cracking model)來模擬鋼筋混凝土結構物受到地震力作用時的反應。此一數值模型是以FORTRAN電腦語言寫成，經編譯無問題後，再連結於有限元素法軟體LUSAS之主程式上。至於實驗之驗證上，本文取得一座三層樓房屋放置於地震震動台之實驗資料與結果。此一實驗為瑞士國家地震研究中心(ETH)所執行之地震研究。在數值分析方法中，本文採用了有限元素法、破裂力學理論與彈塑性力學理論來預測結構物的受震行為。分析結果顯示，反覆裂縫模型的模擬結果與實驗結果相當吻合。

關鍵字

地震力 ； 有限元素法 ； 裂縫

並列摘要

In this paper, a cyclic cracking model is proposed to model the behavior of reinforced concrete structures under earthquake-like dynamic loading. This model has been implemented into a FE program (LUSAS) using the MMI (material model interface) facility to simulate reversed and cyclic loading. A shaking table test, performed at ETH of Switzerland, has been chosen for comparison. The test performed on the shaking table simulated a wall of a 3-storey building. In this study, the finite element method was used and the maximum tensile strength criterion was adopted. The results showed that the cyclic cracking model has reasonable agreement with the experimental results.

並列關鍵字

earthquake force ； finite element method ； cracks