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 中國(guó)海洋大學(xué)工程學(xué)院， 青島 266100； 2 中國(guó)人民解放軍軍事科學(xué)院國(guó)防工程研究院，北京 100850)

摘要: 對(duì) 9 片砌體墻進(jìn)行擬靜力試驗(yàn)，建立鋼絲繩￣聚合物砂漿面層交叉條帶加固砌體墻的抗剪承載力公式并研究組合墻體受力機(jī)理。 試驗(yàn)表明:在砌體墻單側(cè)或者雙側(cè)增設(shè) 25mm 厚、250mm 寬的鋼絲繩￣聚合物砂漿面層可以提高砌體墻抗剪承載力，組合墻體承載力較未加固墻體提高約 70%，由于交叉條帶對(duì)墻體的約束作用使得墻體的延性也有所提高。 利用試驗(yàn)數(shù)據(jù)擬合出加固后墻體的抗剪承載力參考計(jì)算公式，為了保證安全，對(duì)鋼絲繩和聚合物砂漿所承擔(dān)的抗剪承載力乘以 0. 9 的安全系數(shù)，最終數(shù)據(jù)表明墻體調(diào)整后的公式計(jì)算值對(duì)實(shí)際承載力的包絡(luò)性較好，可在相關(guān)的研究分析中作為參考計(jì)算公式使用。

關(guān)鍵詞: 交叉條帶； 砌體加固； 抗剪承載力

中圖分類(lèi)號(hào):TU398. 7 文獻(xiàn)標(biāo)志碼:A 文章編號(hào):1002￣848X(2022)04￣0136￣06

DOI:10. 19701 / j.jzjg.20200459

Experimental study on static behavior of masonry wall reinforced by wire rope￣polymermortar surface layer cross strip

JIANG Jitong1， WANG Jiacun1， ZHOU Xianxiang2， SUI Zheng’ang1

(1 School of Engineering， Ocean University of China， Qingdao 266100， China； 2 Institute of Defense Engineering，AMS， PLA， Beijing 100850， China)

Abstract: A pseudo￣static test was carried out on 9 masonry walls， the formula for the shear capacity of the masonry wallreinforced by wire rope￣polymer mortar surface layer cross strip was established and the force mechanism of the compositewall was studied. The test results show that adding 25mm thick and 250mm wide wire rope￣polymer mortar surface layer onboth sides of the masonry wall can improve the shear capacity of the masonry wall， and the bearing capacity of thecomposite wall is about 70% higher than that of the unreinforced wall， and the ductility of the wall s is also improved due tothe restrictive effect of the cross strip on the wall. The test data was used to fit a reference calculation formula for the shearcapacity of the reinforced wall. In order to ensure safety， multiply the shear capacity of the wire rope and polymer mortar bya safety factor of 0. 9. The final data show that the adjusted formula calculation value of the wall has a better envelope forthe actual bearing capacity， and can be used as a reference calculation formula in related research and analysis.

Keywords:cross strip； reinforcement of masonry walls； shear capacity

第一作者:蔣濟(jì)同，博士，教授，主要從事結(jié)構(gòu)檢測(cè)鑒定與加固，Email:jtjiang@ ouc.edu.cn。

[引用本文] 蔣濟(jì)同，王家存，周獻(xiàn)祥，等. 鋼絲繩￣聚合物砂漿面層交叉條帶加固砌體墻擬靜力試驗(yàn)研究 [ J]. 建筑結(jié)構(gòu)，2022，52(4):136￣141，92. JIANG Jitong， WANG Jiacun， ZHOU Xianxiang， et al. Experimental study on staticbehavior of masonry wall reinforced by wire rope￣polymer mortar surface layer cross strip[ J]. Building Structure，2022，52(4):136￣141，92.