中高樓層建築物耐震能力之簡易詳細評估法

找出耐震能力不足及需要補強的老舊建築物為當前重要任務，但若全數進行詳細評估，工程會極為浩大、不經濟且難以實施，故本文針對中高樓層建築物提出簡易詳細評估法，該法僅考量構件之強度、破壞形式等，不須透過套裝軟體建置模型進行分析，以極限彎矩平衡法求得建築物之極限基底剪力，以此判斷其耐震能力，可提供工程師作為詳評結果的參考。本文分別透過簡易詳細評估及詳細評估方法，以實例分析中高樓層建築物，其中詳細評估方法是參考國家地震工程研究中心出版之校舍結構耐震評估與補強技術手冊所建議的方式，對建築物進行側推分析，將兩方法之分析結果進行比較，就本案例而言，簡易詳細評估方法之極限基底剪力強度及耐震性能與詳細評估結果差異不大，未來可推廣於中高樓層建物使用。

關鍵字

極限基底剪力；耐震評估；簡易詳細評估法

並列摘要

To find out the buildings with less seismic capacity is an important issue. However, conducting detailed evaluation for all buildings will cost a lot and uneconomical. This article focuses on Simplified Seismic Detailed Evaluation for mid-rise to high-rise buildings. The method needs not to use structural analysis software to obtain the results, but only consider strength of member, failure mode, etc. The article uses Ultimate Moment Balanced Method to evaluate the maximum base shear of building and assesses the seismic ability of the building. The result of Simplified Seismic Detailed Evaluation can be reference for engineers to check with Seismic Detailed Evaluation. The article adopts both Simplified Seismic Detailed Evaluation and Seismic Detailed Evaluation for a mid-rise to high-rise building to compare the differences of two methods. The Seismic Detailed Evaluation in the article is the method provided by NCREE. The results show that the base shear and seismic ability evaluated by both two methods only with minor difference. The method can be proposed to conduct seismic evaluation on mid-rise to high-rise buildings.