大跨度"U+箱"连续梁桥的合龙施工
Building Construction(2023)
Abstract
结合工程实际,对场地条件狭小条件下,"U+箱"形断面连续梁的合龙施工技术进行了攻关.在不改变主梁无应力状态量的情况下,根据桥梁自身荷载、跨径分布,提出了分级卸载方案.经过数值计算和施工验证,该方案操作便捷,效果可靠,有效解决了顶板开裂问题,对同类工程具有一定的借鉴意义.
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