在1999年台灣集集地震之後，為提高低矮型鋼筋混凝土(Reinforced Concrete, RC)建築物的安全性，需進行建築物耐震性能的初步與詳細評估。當前對低矮型RC結構進行耐震性能初步與詳細評估方法，是根據近年幾次災難性地震有關的試驗數據與數據庫所發展，本研究的主要目的是對其進行修改，使其適用於受震損的低矮型RC建築結構。
為量化RC柱構件的震後殘餘耐震性能，本研究使用具有撓曲、撓剪和剪力破壞模式的8組柱試體之試驗數據，得出在指定損傷等級下受損RC柱構件的殘餘耐震能力。因過去研究多採用靜力循環加載方式獲得受損RC柱構件的耐震性能折減因子，然受靜力循環加載作用的受損試體獲得的之折減因子與受動力加載作用下獲得的折減因子應有所不同，故對此差異進行研究。另採用本研究進行之動力試驗、先前研究之靜力試驗與太平洋地震工程研究中心結構性能數據庫(PEER)中獲得的試驗數據，經回歸分析獲得受損RC柱構件在各損傷等級的強度、勁度與能量消散折減因子。
從試驗數據中獲得之折減因子可用於對RC柱構件的非線性塑鉸(Nonlinear Plastic Hinge)進行修正，以獲得受損RC柱構件的非線性塑鉸行為，亦通過試驗數據進行了驗證，並可應用於震後耐震性能詳細評估的非線性側推分析方法。此外，為發展震後低矮型RC建築結構耐震性能初步評估方法，採用受損RC柱構件的修正非線性塑鉸，並考慮勁度折減對構件強度發展曲線的影響，在對RC柱構件的變形限制下獲得單位面積的極限剪力強度折減因子。
本研究對低矮型震損RC建築物提出震後耐震性能初步與詳細評估方法，並採用十棟實際受損的低矮型RC建築結構為案例進行演示與驗證。最後，參照目前國外震後緊急評估作法與結合本研究發展之震損建築物耐震性能評估方法，對我國現行災害後緊急評估流程提出修訂建議。

After the 1999 Chi-Chi Earthquake in Taiwan, to improve the safety of a huge number of low-rise reinforced concrete (RC) buildings, including typical RC school buildings and street houses, preliminary and detailed seismic assessments were conducted for seismic capacity. Since the current method of preliminary seismic assessment for low-rise RC building structures uses experimental data and databases that contain information associated with several disastrous earthquakes, the main purpose of this work is to modify it to make it applicable to earthquake-damaged low-rise RC building structures.
To quantify the post-earthquake residual seismic capacity of RC column members, experimental data for eight column specimens with flexural, flexural-shear and shear failure modes are used to derive residual seismic capacity of damaged RC column members for specified damage states in this work. Static-cyclic loading is used to identify the reduction factors of seismic capacity of damaged RC column members. The reduction factors of seismic capacity that are obtained from specimens that are damaged under static-cyclic loading differ from those obtained in dynamic testing, and this difference is investigated in this work. The experimental results obtained in this work, previously obtained results, and the "Pacific Earthquake Engineering Research Center Structural Performance Database (PEER)" are used to obtain reduction factors of strength, stiffness and energy dissipation. From the damage levels of column members after an earthquake, corresponding reduction factors can be determined and used in the seismic assessment of an RC building.
In this work, reduction factors of strength, stiffness and energy dissipation, which are based on experimental data, are used to modify the nonlinear plastic hinges of damaged RC column members with various damage levels and can be applied to nonlinear pushover analysis of detailed seismic assessment. The behavior of modified nonlinear plastic hinges is verified using experimental data. To develop a method of preliminary seismic assessment for a damaged low-rise RC building structure, the reduction factors of shear strength per unit area are suggested using the modified nonlinear plastic hinges of the damaged RC column members. Additionally, the effect of the stiffness reduction on the development curve of strength of an RC column member is also considered in determining the reduction factors of shear. The preliminary and detailed evaluation methods for the post-earthquake seismic performance of low-rise RC buildings were proposed in this work and in a case study of ten real damaged low-rise RC building structures for demonstration and verification. Finally, the modification of current rapid-assessment regulations for disaster-damaging buildings was been proposed based on the international post-earthquake emergency evaluation procedures and the methods of post-earthquake seismic assessment.

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