RC構架含填充磚牆之耐震補強研究

Abstract

在台灣有許多低矮型的老舊街屋，他們通常是含磚牆鋼筋混凝土構架的結構系統，在地震來臨的時候磚牆能提供一定的側向強度，因此磚牆也是一種重要的耐震結構元件。磚牆的側向強度與破壞路徑有關，為此前人提出碳纖維貼片及拉力鋼棒兩種補強的工法，希望通過改變磚牆的破壞路徑以提高磚牆的側向強度。 本研究設計了七座含磚牆鋼筋混凝土構架試體，其中分別包括先砌式及後砌式兩種磚牆砌法，另外應用碳纖維貼片及拉力鋼棒兩種補強工法對試體進行補強。在試驗中希望通過觀察、對比和分析討論，驗證兩種補強工法是否有改變磚牆破壞路徑的效果，總結兩種補強工法的補強機制和相應的分析模型。

In Taiwan, There are many Typical Street House Buildings, which usually structural systems with reinforced concrete frames with brick walls. Masonry walls provide a certain amount of lateral strength for the structure when an earthquake occur, so Masonry walls are also an important seismic structural component. The lateral strength of the Masonry wall is related to the fracture path. The previous proposed two methods to reinforce the Masonry wall: Carbon Fiber Reinforced Plastic Sheet and Pre-tensioned Rods,in order to change the failure path of the wall and improve the lateral strength. In this study, seven specimens which are reinforced concrete frames with brick walls designed and retrofit by Carbon Fiber Reinforced Plastic Sheet or Pre-tensioned Rods. It is hoped that through observation, comparison and analysis,verified whether the two seismic retrofittiong methods have the effect of changing the fracture path of the brick wall. Finally,summarize the reinforcement mechanism and analysis model of the two reinforcement methods are summarized.