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(1 內(nèi)蒙古科技大學(xué)土木工程學(xué)院, 包頭 014010; 2 北京帕克國際工程咨詢股份有限公司, 北京 100022)
[摘要]為研究泡沫微晶玻璃磚砌體的抗震性能,對5片泡沫微晶玻璃磚墻體進(jìn)行了低周反復(fù)水平荷載下的擬靜力試驗。分析了泡沫微晶玻璃磚墻體的破壞形態(tài)、滯回曲線、延性、剛度退化、耗能、抗剪承載力等,并綜合考慮和研究了高寬比、豎向壓應(yīng)力及構(gòu)造柱等因素對泡沫微晶玻璃磚墻體抗震性能的影響。試驗表明:高寬比對試驗墻體的影響較小;一定范圍內(nèi)增大墻體的豎向壓應(yīng)力可有效提高墻體的抗剪承載力和水平極限位移,使墻體的滯回曲線更加飽滿;設(shè)置構(gòu)造柱,可顯著提高墻體的抗剪承載力和耗能能力。在抗震設(shè)防區(qū),泡沫微晶玻璃磚可以代替燒結(jié)黏土磚作為承重墻體材料使用。
[關(guān)鍵詞]泡沫微晶玻璃磚; 抗剪承載力; 滯回曲線; 延性
中圖分類號:TU362, TU522-1+ 4文獻(xiàn)標(biāo)識碼:A文章編號:1002-848X(2018)19-0082-04
Experimental study on seismic behavior of foam microcrystalline glass brick wall
Li Fengge1, Hao Yan1, Liu Dong2, Sun Wenjin1
(1 College of Civil Engineering, Inner Mongolia University of Science & Technology, Baotou 014010, China; 2 Beijing Parker International Engineering Consulting Co., Ltd., Beijing 100022, China)
Abstract:In order to research the seismic behavior of the brickwork made of foam microcrystalline glass brick, pseudo-static test was carried out on five pieces of walls made of foam microcrystalline glass bricks under the low cycle level load. Analysis was carried out on the failure mode, hysteretic curve, ductility, rigidity degeneration, energy dissipation and shear strength, etc. of walls made of foam microcrystalline glass bricks. The influences from height-width ratio, vertical compress stress, constructional column and other factors on the seismic behavior of walls made of foam microcrystalline glass bricks were took into account and researched. The experiments indicate the follows: the height-width ratio has a little influence on the walls tested; enlarging vertical compress stress of the walls in certain range can effectively increase the shear strength and ultimate lateral displacement of the walls, thus making the hysteretic curve of the walls more rounded; arranging constructional columns can significantly increase the shear strength and energydissipating capacity of the walls. In earthquake fortification regions, foam microcrystalline glass bricks can replace the clay bricks as the bearing materials.
Keywords:foam microcrystalline glass brick; shear strength; hysteretic curve; ductility
作者簡介:李奉閣,碩士,副教授,一級注冊結(jié)構(gòu)工程師,Email: lfg0626@sohu.com。