Behavior of Damaged RC and SRC Members after Retrofitting

改造后受损 RC 和 SRC 构件的行为

• 批准号: 20760375
• 负责人: FUJINAGA Takashi
• 金额: $ 2.66万
• 依托单位: Kobe University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Young Scientists (B)
• 财政年份: 2008
• 资助国家: 日本
• 起止时间: 2008 至 2010
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-20760375/
• 关键词: 地震防災; 補修・補強; 鉄筋コンクリート構造; 鉄骨鉄筋コンクリート構造; 鉄骨鉄筋コンクリート; 非充腹型; ラチス型; 鉄筋コンクリート; ひび割れ; 樹脂注入; ポリマーセメントモルタル; 初期剛性; 格子型; 地震防災; 補修・補強; 鉄筋コンクリート構造; 鉄骨鉄筋コンクリート構造; 鉄骨鉄筋コンクリート; 非充腹型; ラチス型; 鉄筋コンクリート; ひび割れ; 樹脂注入; ポリマーセメントモルタル; 初期剛性; 格子型

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.

改装后，损坏的SRC梁柱具有开放式板条/晶格板和RC梁柱的结构性性能。在恒定的轴向载荷和循环侧载荷下测试了9种开放式WEB类型的SRC梁柱标本和六个RC梁柱标本。首先，将每列加载到目标位移。首次加载后，对测试柱进行了翻新并重新加载。每列的受损部分都用聚合物水泥砂浆进行了翻新，并注入环氧树脂的树脂中。所有翻新的柱都显示出较高的负载承载能力和较低的刚度，而每列中经验丰富的位移则不同。