建築物結構補強案例之分析研究

Cases Study of Building Structure Rehabilitation

林聖國(Sheng-Kuo Lin)

指導教授 ： 詹益臨

健行科技大學/工學院/空間資訊與防災研究所/碩士(2012年)

https://doi.org/10.6824/UCH.2012.00049

摘要

當鋼筋混凝土建築物在施工時有不良的因素加入造成結構並不如原先設計理想，使得建築物因施工品質、使用不當、設計不良、地震危害、使用年限已到等因素，導致結構體耐震能力不足。或是受災建築結構在部分受損情況下進行安全評估後，一般除了結構損壞嚴重需要拆除外，基於經濟性、時效性等多種因素考量，常採用修復補強的方式，以增加建築物的承載力及使用年限。
RC結構補強工程的進行，一般需要經過現地調查、結構檢測評估分析後，確認補強區域、形式與材料使用後，進行施工。但目前業界對於建物補強工程，事前的結構耐震能力評估診斷，並無相關作業規範，使得各種補強的設計、工法技術的引用常因人而異。
目前本研究針對經手已補強的數個案例，定出座標，並分析其損傷的位置、狀況、補強的工法、經過的時間及目前的狀況等等各種方式加以進行彙整分析比較，研究評估其相關性、補強後之有效性，也確認補強施工方式之可行性。研究發現不同的案例在不同的使用年限限制下的結構補強工程成本，隨著建物屬性而有所不同。在補強工程成效依照案例研究分析發現，由承包商提供使用材料的可靠性及合乎雙方期待的品質計畫來評估補強後所提供的結構安全，有助於降低完成施工後兩造對於施工成果的落差。此驗證現場經驗法則與補強工程的成效分析考量，並可提供未來思考補強設計之看法，建立更有效、有用更經濟的補強方式。

關鍵字

結構補強工法 ； 耐震補強 ； 鋼板補強 ； 碳纖維補強

並列摘要

Buildings are constructed by many kinds of materials. Engineers are trying to find out the best way to construct buildings with safer components and extend a building’s duration. There are some adverse factors will make the building structure not as good as original design and even reduce seismic capacity of the structure, such as poor quality of construction, improper use, earthquake and come-to-the-end of building’s life cycle. After conducting a security assessment to damaged building, except those seriously damaged buildings need to be torn down, reinforcement would be a suitable solution for less damaged or partial damaged buildings.
A RC structure rehabilitation project will begin after following steps are done. First, complete a on-the-spot investigation and evaluation of a structure. Secondly, confirm areas which need to be reinforced, and decide forms and materials of a structure. Finally, begin to work on the structure. There are no relevant operating standards about prior assessment of the structural seismic capacity diagnosis to follow. The reinforcement design and construction methods often vary from person to person.
In this study, in order to evaluate the correlation of damaged spots, the methods of reinforcement and other factors, several reinforced cases are analyzed to make sure if those methods were proper or not. This study found that the cost of reinforcement under different building’s life cycle would vary with their purposes of usage. However, an after-reinforced assessment provided by the constructor is helpful to shorten the expectation gap towards the result of reinforcement. Besides, this kind of on-the-spot experience and result analysis can provide a more effective and economic way to design for the future reinforcement.

並列關鍵字

reinforcement method ； seismic reinforcement ； steel plate reinforcement ； carbon fiber reinforced polymer reinforcement

參考文獻

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