非線性側推分析方法預測結果之研究

A Study on Nonlinear Pushover Analysis Prediction Results

吳宗宥(Tsung-Yu Wu)

指導教授 ： 黃世建

國立臺灣大學/工學院/土木工程學研究所/碩士(2021年)

https://doi.org/10.6342/NTU202102801

摘要

本研究以「臺灣結構耐震評估側推分析法 (TEASPA V3.1)」及「臺灣鋼筋混凝土結構耐震評估非線性動力分析手冊(TEASDA 1.0)」二非線性側推分析方法分析國家地震工程研究中心過去曾執行之校舍現地側推試驗試體，包含新城國中、瑞埔國小、關廟國小及口湖國小。亦以上述二分析方法分析盧錦嫻碩士論文試體，包含具面外磚牆之填充構架與不具面外磚牆之純構架，嘗試著找出面外磚牆對填充構架之貢獻。
就盧錦嫻碩士論文試體分析結果而言，TEASDA 1.0對不具面外磚牆之純構架側力位移曲線具有較佳之預測結果，包含最大側力強度、側向勁度及側力位移曲線之特徵與轉折點。至於TEASPA V3.1對於不論是否具有面外磚牆之構架，其側向勁度恐無法如TEASDA 1.0般準確，但其最大側力強度仍能準確預測。
就校舍現地側推試驗分析結果而言，除瑞埔國小因施工條件較差外，其餘三座試體以TEASDA 1.0和TEASPA V3.1所預測之最大側力強度約為試驗結果之70%~80%，屬於保守側之強度預測結果。此外，就建築物耐震能力評估求取性能點而言，二分析方法雖因構件假設之有效勁度不同導致側力位移曲線發展趨勢不同，但因二方法之最大側力強度預測值接近，故就求取性能點而言應無優劣之分野。

關鍵字

非線性側推分析 ； 側力位移曲線 ； 耐震能力評估

並列摘要

This research focuses on the in-situ pushover tests of school buildings by the National Center for Research on Earthquake Engineering, and Lu master thesis specimens, using "Taiwan Earthquake Assessment for Structures by Pushover Analysis (TEASPA V3.1)" and "Taiwan Earthquake Assessment for RC Structures by Dynamic Analysis (TEASDA 1.0)" for analyzing.
With these two nonlinear analysis methods, this research not only analyze the in-situ pushover tests of school buildings including Shin-Chen, Rei-Pu, Guan-Mia and Ko-Hu specimens, but also the brick infilled frames and the pure frame subjected to the out-of-plane loading of the Lu master thesis specimens, trying to find the contribution of the out-of-plane brick wall to the infill frame.
In terms of the analysis results of Lu master thesis specimens, TEASDA 1.0 has better prediction results for the lateral force displacement curve of pure frame without out-of-plane brick walls, including the values of the maximum lateral strength, lateral stiffness, and the characteristics of the turning points of lateral force displacement curve.
No matter having out-of-plane brick walls or not, the lateral stiffness using the TEASPA V3.1 may not be as accurate as using the TEASDA 1.0, but its maximum lateral strength can still be accurately predicted.
The analysis results of the in-situ pushover tests of school buildings shows that, except for Rei-Pu specimens due to poor construction conditions, the maximum lateral strength predicted by TEASDA 1.0 and TEASPA V3.1 is about 70% ~ 80% of the test data. The strength prediction results is on the safe side.
Considering the building's seismic capacity evaluation, although the two analysis methods have different trends of the lateral force displacement curve due to the different lateral stiffness assumptions of members, the maximum lateral strength prediction of the two methods are close, so there is not much different on building's seismic capacity evaluation.

並列關鍵字

Nonlinear Pushover Analysis ； Lateral Load-Displacement curve ； Seismic Capacity Evaluation

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