本文主要研究内容
作者辛亚兵,刘志文,邵旭东,陈以荣,陈政清（2019）在《大跨连续刚构桥下击暴流作用效应试验研究》一文中研究指出：为研究大跨连续刚构桥在下击暴流水平风速作用下的风振响应,开发了一套在大气边界层风洞中模拟下击暴流水平风速的试验装置。下击暴流水平风速剖面通过调节置于风洞中的斜板竖向位置与倾角来模拟,下击暴流时间特性通过控制两侧水平开合板运动的速度、角度来模拟。以广东虎门大桥辅航道桥为工程背景,设计并制作几何缩尺比为1∶200连续刚构桥最大双悬臂状态气弹模型,进行了下击暴流瞬态风场、下击暴流稳态风场和大气边界层B类风场下连续刚构桥最大双悬臂状态气弹模型风洞试验,对不同风场下桥梁结构风致振动位移响应进行了对比分析。结果表明:采用下击暴流模拟装置在大气边界层风洞中所模拟的下击暴流水平风剖面与下击暴流经验风剖面吻合较好;采用下击暴流模拟装置实现了下击暴流风速时间特性的模拟,所模拟的下击暴流瞬态风场湍流度与目标值总体接近。在下击暴流瞬态风场下桥梁梁端横桥向位移响应时变均方根最大值约为在B类风场下梁端横桥向位移响应均方根值的2.7～6.8倍;在下击暴流稳态风场下桥梁梁端横桥向位移响应时变均方根最大值约为在B类风场下梁端横桥向位移响应均方根值的70%～230%。在下击暴流瞬态风场下桥梁梁端竖向位移响应时变均方根最大值约为在B类风场下梁端竖向位移响应均方根值的2.3～5.3倍;在下击暴流稳态风场下桥梁梁端竖向位移响应时变均方根最大值约为在B类风场下梁端竖向位移响应均方根值的90%～260%。
Abstract
wei yan jiu da kua lian xu gang gou qiao zai xia ji bao liu shui ping feng su zuo yong xia de feng zhen xiang ying ,kai fa le yi tao zai da qi bian jie ceng feng dong zhong mo ni xia ji bao liu shui ping feng su de shi yan zhuang zhi 。xia ji bao liu shui ping feng su pou mian tong guo diao jie zhi yu feng dong zhong de xie ban shu xiang wei zhi yu qing jiao lai mo ni ,xia ji bao liu shi jian te xing tong guo kong zhi liang ce shui ping kai ge ban yun dong de su du 、jiao du lai mo ni 。yi an dong hu men da qiao fu hang dao qiao wei gong cheng bei jing ,she ji bing zhi zuo ji he su che bi wei 1∶200lian xu gang gou qiao zui da shuang xuan bei zhuang tai qi dan mo xing ,jin hang le xia ji bao liu shun tai feng chang 、xia ji bao liu wen tai feng chang he da qi bian jie ceng Blei feng chang xia lian xu gang gou qiao zui da shuang xuan bei zhuang tai qi dan mo xing feng dong shi yan ,dui bu tong feng chang xia qiao liang jie gou feng zhi zhen dong wei yi xiang ying jin hang le dui bi fen xi 。jie guo biao ming :cai yong xia ji bao liu mo ni zhuang zhi zai da qi bian jie ceng feng dong zhong suo mo ni de xia ji bao liu shui ping feng pou mian yu xia ji bao liu jing yan feng pou mian wen ge jiao hao ;cai yong xia ji bao liu mo ni zhuang zhi shi xian le xia ji bao liu feng su shi jian te xing de mo ni ,suo mo ni de xia ji bao liu shun tai feng chang tuan liu du yu mu biao zhi zong ti jie jin 。zai xia ji bao liu shun tai feng chang xia qiao liang liang duan heng qiao xiang wei yi xiang ying shi bian jun fang gen zui da zhi yao wei zai Blei feng chang xia liang duan heng qiao xiang wei yi xiang ying jun fang gen zhi de 2.7～6.8bei ;zai xia ji bao liu wen tai feng chang xia qiao liang liang duan heng qiao xiang wei yi xiang ying shi bian jun fang gen zui da zhi yao wei zai Blei feng chang xia liang duan heng qiao xiang wei yi xiang ying jun fang gen zhi de 70%～230%。zai xia ji bao liu shun tai feng chang xia qiao liang liang duan shu xiang wei yi xiang ying shi bian jun fang gen zui da zhi yao wei zai Blei feng chang xia liang duan shu xiang wei yi xiang ying jun fang gen zhi de 2.3～5.3bei ;zai xia ji bao liu wen tai feng chang xia qiao liang liang duan shu xiang wei yi xiang ying shi bian jun fang gen zui da zhi yao wei zai Blei feng chang xia liang duan shu xiang wei yi xiang ying jun fang gen zhi de 90%～260%。
论文参考文献
论文详细介绍
论文作者分别是来自中国公路学报的辛亚兵,刘志文,邵旭东,陈以荣,陈政清，发表于刊物中国公路学报2019年10期论文，是一篇关于桥梁工程论文,下击暴流论文,风洞试验论文,风致振动响应论文,风场模拟论文,中国公路学报2019年10期论文的文章。本文可供学术参考使用，各位学者可以免费参考阅读下载，文章观点不代表本站观点，资料来自中国公路学报2019年10期论文网站，若本站收录的文献无意侵犯了您的著作版权，请联系我们删除。
标签：桥梁工程论文; 下击暴流论文; 风洞试验论文; 风致振动响应论文; 风场模拟论文; 中国公路学报2019年10期论文;