城市立交装配式连续钢混组合梁设计  

Design of Prefabricated and Continuous Steel-concrete Composite Beams in Urban Interchanges

作　　者：周兴宇 李佳莉 冯旺 ZHOU Xing-yu;LI Jia-li;FENG Wang(Central&Southern China Municipal Engineering Design and Research Institute Co,Ltd,Wuhan 430010,China)

机构地区：[1]中国市政工程中南设计研究总院有限公司,武汉430010

出　　处：《建材世界》2025年第2期70-73,共4页The World of Building Materials

摘　　要：针对装配式连续钢混组合梁负弯矩区桥面板易开裂及桥面板纵向分段过多问题,文章依托某在建工程,比选研究负弯矩区桥面板技术方案,提出复杂交通环境下钢混组合梁的节段划分方案。结果表明,拆除临时支撑后浇筑负弯矩区桥面板可有效改善其受力状态、限制裂缝宽度;纵向少节段与横向分块相结合的节段划分方案在复杂交通环境下具备较强的技术优势。In order to solve deck slab cracking in the negative moment zone and excessive longitudinal divisions of prefabricated continuous steel-concrete composite beams,this paper studied the technical scheme of deck slab in negative moment zone and put forward scheme of the segmental division of steel-concrete composite beams in complex traffic environment based on one project under construction.The results show that the stress performance is effectively improved and the crack width is limited by pouring its concrete after the temporary supports are removed.The scheme of segmental division which combines less longitudinal division and transverse division has strong technical advantages in complex traffic environment.

关 键 词：连续钢混组合梁 负弯矩区 节段划分 

分 类 号：U445.4[建筑科学—桥梁与隧道工程] U443.3[交通运输工程—道路与铁道工程]