- 摘 要
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(1 內(nèi)蒙古建筑職業(yè)技術(shù)學(xué)院建筑工程學(xué)院,呼和浩特 010070; 2 內(nèi)蒙古工業(yè)大學(xué)土木工程學(xué)院,呼和浩特 010010)
[摘要]由于磚砌體的抗拉、抗剪強(qiáng)度都很低,抗震能力較差,在地震作用下破壞非常嚴(yán)重,近年來大批磚砌體結(jié)構(gòu)需要進(jìn)行抗震加固與改造。鋼筋網(wǎng)噴射混凝土板墻加固方法因易于施工、造價低、加固效果好等優(yōu)點,在砌體結(jié)構(gòu)抗震加固中被廣泛使用?;阡摻罹W(wǎng)噴射混凝土板墻加固試驗,研究了磚墻采用鋼筋網(wǎng)噴射混凝土板墻加固后的力學(xué)性能、破壞形態(tài)及延性等,提出了剛度與承載力計算方法,可為采用鋼筋網(wǎng)噴射混凝土板墻加固磚墻的設(shè)計方法提供依據(jù)和參考。
[關(guān)鍵詞]砌體結(jié)構(gòu); 抗震加固; 鋼筋網(wǎng)噴射混凝土板墻加固
中圖分類號:TU398.7 文獻(xiàn)標(biāo)識碼:A 文章編號:1002-848X(2014)11-0041-07
Experimental research of brick wall strengthened by steel fabric shotcrete wall
Yu Jianmin1, Wang Yuqing2, Tian Ying2, Zhang Yehong1
(1 College of Architectural Engineering, Inner Mongolia Technical College of Construction, Hohhot 010070, China; 2 Civil Engineering College, Inner Mongolia University of Technology, Hohhot 010010, China)
Abstract: In recent years, many brick masonry structure projects need seismic strengthening and reconstruction due to its low tensile strength, low shear strength, poor seismic ability and serious damage in the earthquake. The strengthening method of steel fabric shotcrete wall, which has advantages of easy construction, low cost and good strengthening effects, is widely used in seismic strengthening of brick masonry structures. Based on the tests of steel fabric shotcrete wall strengthening, mechanical properties, failure pattern and ductility were studied after the strengthening construction. Calculation methods of stiffness and bearing capacity of steel fabric shotcrete wall strengthening were put forward. The method provides basis and reference for the design of brick wall strengthened by steel fabric shotcrete wall.
Keywords: masonry structure; seismic strengthening; steel fabric shotcrete wall strengthening
*內(nèi)蒙古自治區(qū)高等學(xué)??茖W(xué)技術(shù)研究項目,自然科學(xué)研究(一般項目)(NJ10265)。
作者簡介:于建民,博士研究生,副教授,一級注冊結(jié)構(gòu)工程師,Email:YUJM99@126.com。