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(1 中國建筑科學(xué)研究院有限公司， 北京  100013； 2 軍事科學(xué)院國防工程研究院，  北京  100036)

［摘要］鋼筋-砂漿面層交叉條帶法是一種具有獨(dú)特受力機(jī)理的砌體結(jié)構(gòu)加固新方法，具有施工快、影響范圍小的優(yōu)點(diǎn)。根據(jù)典型的砌體結(jié)構(gòu)計(jì)算結(jié)果設(shè)計(jì)試驗(yàn)縮尺模型，對(duì)加固與未加固模型進(jìn)行多種工況下的振動(dòng)臺(tái)同臺(tái)試驗(yàn)，分析模型在不同加速度幅值輸入時(shí)的動(dòng)力特性和破壞機(jī)制，研究鋼筋-砂漿面層交叉條帶法加固砌體結(jié)構(gòu)的整體抗震性能。試驗(yàn)結(jié)果對(duì)比分析表明：設(shè)置鋼筋-砂漿面層交叉條帶可以有效地提高砌體結(jié)構(gòu)抗震能力；鋼筋-砂漿面層可以同時(shí)增加墻體的承載能力和延性；底層窗間墻是砌體結(jié)構(gòu)的薄弱部位；大震作用下砌體結(jié)構(gòu)頂層比底層具有更好的變形能力。

［關(guān)鍵詞］鋼筋-砂漿面層交叉條帶； 振動(dòng)臺(tái)試驗(yàn)； 加固模型； 砌體結(jié)構(gòu)

中圖分類號(hào)：TU375-4文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1002-848X(2019)05-0009-04

Shaking table test study on  masonry structure reinforced by using steel bar-mortar layer crossed strip method

Yang Tao1， Zhou Xianxiang2， Luo Rui1， Nie Qi1， Tang Caoming1， Xie Wei2

(1 China Academy of Building Research， Beijing 100013, China；2 Research Institute for National Defense Engineering of Military Sciences, Beijing 100036, China)

Abstract:Steel bar-mortar layer crossed strip method is a new method of strengthening masonry structure with unique force mechanism, which has the advantages of fast construction and small influence range. According to the calculation results of typical masonry structure, the test scale model was designed. The vibration table of the reinforced and unreinforced models under the different working conditions was tested on the same stage. The dynamic characteristics and failure mechanism of the models under different acceleration amplitude input were analyzed. The overall seismic performance of the masonry structure reinforced by using  the steel bar-mortar layer crossed strip method was studied. The comparative analysis of the test results shows that setting the steel bar-mortar layer crossed strip can effectively improve the seismic capacity of the masonry structure. The steel bar-mortar layer can simultaneously increase the bearing capacity and ductility of the wall. The  bottom window wall is the weak part of the masonry structure. The top layer of the masonry structure has better deformation ability than the bottom layer under the action of large earthquakes.

Keywords:steel bar-mortar layer crossed strip method; shaking table test; strengthening model; masonry structure

作者簡介：楊韜，碩士，高級(jí)工程師，Email：ytcabr@126.com。