Behavior of Damaged RC and SRC Members after Retrofitting

研究了空腹式缀板/格构式SRC梁柱和钢筋混凝土梁柱加固后的结构性能。本文对9个空腹型钢混凝土梁柱和6个钢筋混凝土梁柱进行了轴压和低周反复荷载作用下的试验研究。首先，将每个色谱柱加载至目标位移。在第一次加载后，对测试柱进行改造并重新加载。采用聚合物水泥砂浆对各柱的破损部位进行修补，并在裂缝中注入环氧树脂。所有的加固柱都表现出较高的承载力和较低的刚度，但每个柱的位移是不同的。

Structural performance of damaged SRC beam-columns with open-web type of batten/lattice plate and RC beam-columns after retrofitting was investigated. Nine open-web type of SRC beam-column specimens and six RC beam-column specimens were tested under combined constant axial load and cyclic lateral load. At first, each column was loaded to the targeted displacement. After the first loading, the test columns were retrofitted and reloaded. The damaged portions of each column were retrofitted with the polymer cement mortar, and the resin of epoxy injected into the cracks. All of the retrofitted columns have shown higher load carrying capacity and lower stiffness, while the experienced displacement in each column was different.