受震後新築混凝土現地檢測技術評估與案例探討

In-situ Inspection Techniques for seismic effects on the Newly Placed Concrete and Case Studies

龔永健(Un-Chien Kung)

指導教授 ： 張達德

中原大學/工學院/土木工程學系/碩士(2007年)

https://doi.org/10.6840/cycu200700426

摘要

鋼筋混凝土工程大多於工區場鑄，其品質深受施工條件影響，加上本島位於環太平洋地震帶，自然環境四面環海，夏季高溫多雨，且因空氣污染酸雨情形嚴重，使得鋼筋材料易生腐蝕，而混凝土係為多孔隙材料，有害因子可輕易進入，再分別以物理性及化學性的作用，造成混凝土及內部之鋼筋產生破壞，故從新建完成到使用一段時間後，結構難免會產生劣化甚至損傷而縮短原有使用年限。
混凝土耐久性與安全性的評估與確保有其必要性，本文透過研究分析混凝土損傷對耐久性之影響，以及各種現地檢測方法之特性與檢測範圍進行深入的評估說明，並藉由案例中受震後新澆置混凝土結構，透過現地檢測所得之結果與分析，結合各種檢測技術，最後提出鋼筋混凝土結構物安全之評估流程的建議。

關鍵字

損傷 ； 地震 ； 現地檢測技術

並列摘要

Reinforced concrete is mostly cased-in-place and its quality is deeply affected by the condition of working environment. Since Taiwan locates at Pacific seismic zone surrounding with seas, high temperature and humidity during summer and the serious acid rain problems often make the reinforced material easy to decay. In addition, concrete is also porous to the hazardous elements because of its multi-aperture material feature. With both physical and chemical effects, it might lead to the damage of the concrete, as well as interior reinforcing bar, which is likely to transform the construction and shorten its original design life.
It is necessary to estimate and ensure the endurance and the safety of concrete. By analyzing the influence which the damage of concrete might cause to its endurance as well as the variety of in-situ inspection techniques, and the further case study to examine the New-Placed concrete constructions after the earthquake, this research hopes to analyze and estimate the safety of reinforced concrete constructions, and further to establish a set of structure safety estimation process.

並列關鍵字

seismic ； damage ； in-situ inspection techniques

參考文獻

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