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氣候溫度的變化對橋梁伸縮縫施工的影響

瀏覽量: 19908 發表時間:2018-08-09

橋梁伸縮縫是橋梁構造中的重要組成部分,它的作用是在氣溫變化、混凝土收縮、活載作用、橋梁墩臺的沉降及徐變等因素影響下,在平行、垂直于橋梁軸線的兩個方向均能自由伸縮,確保橋梁的牢固可靠。 

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SHENSUOFENGSHIZHIWEIFANGZHIJIANZHUWUGOUJIANYOUYUQIHOUWENDUBIANHUA(REZHANG、LENGSUO),SHIJIEGOUCHANSHENGLIEFENGHUOPOHUAIERYANFANGWUCHANGDUFANGXIANGDESHIDANGBUWEISHUXIANGSHEZHIDEYITIAOGOUZAOFENG。SHENSUOFENGSHIJIANGJICHUYISHANGDEJIANZHUGOUJIANRUQIANGTI、LOUBAN、WUDING(MUWUDINGCHUWAI)DENGFENCHENGLIANGGEDULIBUFEN,SHIJIANZHUWUYANCHANGFANGXIANGKEZUOSHUIPINGSHENSUO。 CHENJIANGFENGWEIFANGZHIJIANZHUWUGEBUFENYOUYUDIJIBUJUNYUNCHENJIANGYINQIFANGWUPOHUAISUOSHEZHIDECHUIZHIFENGCHENGWEICHENJIANGFENG。 

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FANGZHIFANGWUYINQIHOUBIANHUAERCHANSHENGLIEFENG。QIZUOFAWEI:YANJIANZHUWUCHANGDUFANGXIANGMEIGEYIDINGJULIYULIUFENGXI,JIANGJIANZHUWUCONGWUDING、QIANGTI、LOUCENGDENGDIMIANYISHANGGOUJIANQUANBUDUANKAI,JIANZHUWUJICHUYINQIMAIZAIDIXIASHOUWENDUBIANHUAYINGXIANGXIAO,BUBIDUANKAI。SHENSUOFENGDEKUANDUYIBANWEI2LIMIDAO3LIMI,FENGNEITIANBAOWENCAILIAO,LIANGTIAOSHENSUOFENGDEJIANJUZAIJIANZHUJIEGOUGUIFANZHONGYOUMINGQUEGUIDING。

若建筑物平面尺寸過長,因熱脹冷縮的緣故,可能導致在結構中產生過大的溫度應力,需在結構一定長度位置設縫將建筑分成幾部分,該縫即為溫度縫。對不同的結構體系,伸縮縫間的距離不同,中國現行規范《混凝土結構設計規范》GB50010-2010中8.1條對此有專門規定。runzoerun.com


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