世界第一高桥——花江峡谷大桥完成荷载试验|国产精品二区一区二区aⅴ污介绍
8月25日,经过5天紧张有序的检测,由贵州交投集团所属桥梁集团承建的世界第一高桥——花江峡谷大桥荷载试验全部顺利完成。
8月25日上午,花江峡谷大桥迎来静载试验最后一个环节——96辆总载重3360吨的试验卡车缓缓驶上桥面,模拟大规模堵车时,大桥各个关键部位控制截面承载后的一系列效应。本次试验分五级加载。单辆载重35吨的试验车按照24辆车→48辆车→72辆车→84辆车→96辆车的加载顺序分批次从大桥两岸行驶到桥面预先划定的停靠点。检测人员会根据在桥上各个系统布置的不同类型传感器监测大桥在极端荷载作用下控制截面的应力应变、挠度、偏位、索力等。
花江峡谷大桥全长2890米,主桥跨径1420米,桥面到水面高度625米,建成后主桥跨径居山区桥梁跨径世界第一、桥梁高度居世界第一,被称为“横竖”都是世界第一。大桥预计9月底建成通车,对助力贵州省经济发展,加快资源互通,促进地方经济具有重要意义。
(记者 袁超 周燕玲 瞿宏伦 部分素材来源 贵州桥梁集团)
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