884aa四虎影成人精品,99久久国产综合精品女图图等你,97在线观看永久免费视频,久久精品国产精品亚洲38,ⅵdeodesetv性欧美

（1 蘇州科技大學(xué)土木工程學(xué)院， 蘇州 215011； 2 中交一公局第二工程有限公司， 蘇州 215011）

［摘要］為建立CGMM加固損傷鋼筋混凝土圓柱的恢復(fù)力模型，通過3根1∶3縮尺試件的擬靜力試驗(yàn)，分析了CGMM加固及不同加固高度對(duì)試件破壞模式、承載能力、延性等的影響。在此試驗(yàn)研究的基礎(chǔ)上，提出了無(wú)量綱化的三折線骨架曲線模型，擬合了各階段的剛度退化規(guī)律，給出了不同加固高度試件剛度退化的關(guān)系式，建立適用于此類加固的恢復(fù)力模型，并與試驗(yàn)滯回曲線對(duì)比分析，驗(yàn)證了該恢復(fù)力模型的合理性與正確性。

［關(guān)鍵詞］水泥基灌漿料及鋼絲網(wǎng)；加固高度；恢復(fù)力模型；剛度退化；抗震性能

中圖分類號(hào)：TU375-3，TU376文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1002-848X(2021)10-0117-06

Experimental study on the restoring force model of damaged reinforced concrete cylinder strengthened by CGMM

XU Cong1, CHEN Jianbing1, ZHOU Chen2

(1 School of Civil Engineering, Suzhou University of Science and Technology, Suzhou 215011, China;2 CCCC First Highway Two Engineering Co., Ltd., Suzhou 215011, China)

Abstract:In order to establish the restoring force model of damaged reinforced concrete cylinder strengthened by CGMM, low cyclic loading test on three 1∶3 scale specimens were implemented. The influence which were strengthened by CGMM with different height of reinforcement of failure mode, bearing capacity, ductility were analyzed. On this experimental study basis, the dimensionless three-line model of skeleton curves was put forward. The stiffness degradation law of each stage was obtained, and the relationship between stiffness degradation of specimens with different heights of reinforcement was got. A restoring force model suitable for this kind of reinforcement was established and compared with hysteresis curve of test, which verifies the rationality and correctness of the restoring force model.

Keywords:cement-based grouting material with steel wire mesh;height of reinforcement;restoring force model;stiffness deterioration;seismic performance

*蘇州市市級(jí)建設(shè)科研項(xiàng)目（蘇住建科［2018］6號(hào)），蘇州科技大學(xué)科研創(chuàng)新計(jì)劃項(xiàng)目（SKCX17-022）。

作者簡(jiǎn)介：徐聰，碩士，Email:815079850@qq.com；通信作者：陳建兵，學(xué)士，教授，Email:szctt2009@163.com。