浅析节段梁“钢筋胎卡具绑扎+整体式吊装”施工技术

罗武松

摘要：随着我国公路施工建设向高质量、高水平的量化发展，桥梁工程占比不断增加。因此桥梁工程的施工质量将起决定性的作用影响整个道路工程质量。随着桥梁施工技术的飞速发展，节段预制拼装将在桥梁工程中发挥主导作用。本文介绍了一种节段梁整体钢筋绑扎胎卡具施工新工艺。钢筋下料采用智能钢筋设备，钢筋在胎卡架上绑扎制作钢筋笼，然后钢筋笼采用整体桁架吊装，提高了钢筋制作及安装质量、箱梁的质量和钢筋保护层控制。该箱梁预制工艺技术先进、可靠、适用、经济合理，加快了施工进度和技术进步。

Abstract： With the development of highway construction to high quality and high level， the proportion of bridge engineering is increasing. Therefore， the construction quality of bridge engineering will play a decisive role in the quality of the whole road engineering. With the rapid development of bridge construction technology， segmental prefabrication and assembly will play a leading role in bridge engineering. This paper introduces a new construction technology of integral reinforcement binding jig for segmental beams. The intelligent reinforcement equipment is used for reinforcement blanking， the reinforcement is bound on the jig frame to make the reinforcement cage， and then the reinforcement cage is lifted by the overall truss， which improves the quality of reinforcement production and installation， the quality of box girder and the control of reinforcement protection layer. The box girder prefabrication technology is advanced， reliable， applicable， economical and reasonable， which speeds up the construction progress and technical progress.

关键词：钢筋胎卡具;整体吊装;保护层;质量控制

Key words： reinforcement binding jig;integrated lifting;protective layer;quality control

中图分类号：U445.5                                      文献标识码：A                                  文章編号：1006-4311（2020）01-0179-03

1  工程概况

郑州城建集团四环线与大河路快速化预制梁场位于惠济区花园口镇大庙村，中州大道与北四环东南角，紧邻北四环。预制梁场主要包括短线法预制区、节段整修养护区、存梁区、混凝土拌合站及试验室、钢筋加工车间、仓储库房、梁场驻地、办公区及生活区等，梁厂总占地面积约490亩，主线与匝道均采用短线法预制，共8条生产线，暂计划全部用于主线节段预制，后期可更换模板改为匝道箱梁节段预制，制梁台座64个，平均功效25榀/天，存梁区暂定为双层存梁，总计可存放主线预制节段梁1904榀。每条生产线设置4台16吨门式起重机，主要负责钢筋笼、模板等构件吊装转运;每条生产线设置1台98吨门式起重机，提梁装车标准节段梁。……