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

您現(xiàn)在的位置:建筑結(jié)構(gòu)>> 期 刊>> 2020年>> 第09期>>正文內(nèi)容
低溫下栓釘連接件的抗剪性能試驗研究*
謝宜琨1,方國強2,張寧1,姚曉超1
摘 要

(1 西北農(nóng)林科技大學(xué)水利與建筑工程學(xué)院, 楊凌 712100; 2 中交公路規(guī)劃設(shè)計院有限公司, 北京  100010)

[摘要]為了研究低溫下栓釘連接件的抗剪承載力,通過15個栓釘連接件在低溫下的推出試驗,對栓釘連接件在低溫下的破壞形態(tài)、荷載-位移曲線、抗剪承載力和抗剪剛度進行了研究。結(jié)果表明:低溫下栓釘連接件的破壞形式會由混凝土破壞轉(zhuǎn)變?yōu)樗ㄡ敿魯嗥茐?;隨著溫度降低,栓釘?shù)目辜舫休d力近似呈線性提高,但塑性及延性變差;栓釘?shù)目辜魟偠入S溫度降低而提高,且直徑越大,提升幅度越小。

[關(guān)鍵詞]栓釘連接件; 低溫; 推出試驗; 抗剪承載力; 抗剪剛度

中圖分類號:TU398-7文獻標識碼:A文章編號:1002-848X(2020)09-0086-06

 

Experimental study on shear resistance of stud connectors at low temperature

XIE Yikun1, FANG Guoqiang2, ZHANG Ning1, YAO Xiaochao1

(1 School of Water Resources and Architectural Engineering, Northwest A&F University, Yangling 712100, China;2 CCCC Highway Consultants Co., Ltd., Beijing 100010, China)

Abstract:In order to study the shear bearing capacity of stud connectors at low temperature, through the push-out test of 15 stud connectors at low temperature, the failure mode, load-displacement curve, shear capacity and shear stiffness of stud connectors at low temperature were studied. The results show that the failure mode of the bolt-and-nail connector will change from concrete failure to stud shear failure at low temperature; as the temperature decreases, the shear bearing capacity of the stud increases approximately linearly, but the plasticity and ductility deteriorate;shear stiffness increases with decreasing temperature, and the larger the diameter, the smaller the increase

Keywords:stud connection; low temperature; push-out test; bearing capacity; shear stiffness

 

*交通部西部交通建設(shè)科技項目(2014318363230)。

 

作者簡介:謝宜琨,碩士研究生,Email:zbxieyikun@163.com。

下載地址

    你還沒注冊?或者沒有登錄?這篇論文要求至少是本站的注冊會員才能閱讀!

    如果你還沒注冊,請趕緊點此注冊吧!

    如果你已經(jīng)注冊但還沒登錄,請趕緊點此登錄吧!