台灣地區古蹟建築之修復保存於九二一地震以前都嚴格受限於「文化資產保存法」中，原工法、原材料之規定，也因此目前在台灣地區對於古蹟或歷史建築之砌體造牆體，均未建立有關之基礎資料，修護設計者當牆體耐震能力不足時，也常常未能採取適當之補強或改善措施。

　　本研究經由7道試體，5道水泥砂漿試體，2道水泥石灰砂漿試體，藉由往復水平力加載試驗來暸解磚牆體在不同砌縫配比之條件下，磚牆受面內力之破壞模式、極限載重、極限位移，以建立磚牆試驗之基本資料。探討過程包括有無補強、不同貼覆寬度、不同砌縫成份配比之影響，以及探討震前、震後施作補強，其效果之差別。

　　經由試驗結果可得知：
1.水泥石灰砂漿未補強試體剛度較水泥砂漿試體低，最大加載遠小於水泥砂漿試體，但因剛度低，裂縫較早形成，使其能量吸收優於水泥砂漿試體。
2.碳纖維補強之試體，對於牆體之破壞模式、最大加載、最大位移及能量吸收有很大之改變與提升，尤其以未補強時較弱之水泥石灰砂漿試體，補強後效果更為顯著。
3.貼覆較寬之碳纖維補強相對於補強較窄者，牆體之剛度與最大加載並未有明顯提升，但在承受加載數目及能量吸收有顯著之提升。
4.震前與震後補強最大之差異在於破壞模式之改變與試驗過程中每週次之吸能變化。震後補強牆體剛度較震前補強牆體高，但能量吸收較震前補強牆體少。

　In Taiwan , for a long period the preservation of historic building is strictly limited to the Cultural Heritage Preservation Law that using original skill , original materials are required . So , up to now , in Taiwan , the basic data related to the structural behavior of masonry wall for ancient monument or historic building are still not established . The conservation designer or architect often fail to take proper measures to retrofit the historic building and improve the earthquake resistanec of the building .

　For this investigation , there are total 7 specimens designed , 5 specimens using cement mortar and 2 specimens using cement-lime mortar . The main purpose of this study is to know failure mechanism , ultimate strength and ultimate displacement of various specimen under in-plane cyclic loading . Based upon the experiment , the basic data of the brick wall , including strengthening or not , different carbon fiber width , different mortar properties and strengthing prior to or post damage , will be provided .

　From the test , following results are observed：
1. For unstrengthening cement-lime specimens during test , the stiffness and ultimate load are lower than that of unstrengthening cement specimens .However , unstrengthening cement specimens have better energy dissipation .
2. The strengthening specimens have visible change in failure mechanism and great improvement in ultimate load , ultimate displacement and energy dissipation ,especially the strengthed cement-lime specimens .
3. The specimens that strengthened with wider carbon fiber 25cm in width has better improvement in number of loading cycle and energy disspation than that of the specimen strengthened with carbon fiber in the width of 15cm .
4. For specimens which strengthened prior to and post damage are different about the change of failure mechanism and the energy dissipation of each loading cycle .The stiffness of specimens strengthened post damage are higher than thoat of specimens strengthened prior to damage , but having less energy dissipation .

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