摘要
Abstract
This paper is based on the Pearl River Delta water resource allocation project and aims to address the high construction risks and difficulties associated with the high formwork support construction of the deep well working platform.The"precast UHPC demountable formwork+precast I-beam+cast-in-place panel"deep well working platform system is proposed.This study provides a detailed investigation into the structural design and calculation analysis of this novel deep well working platform system.It introduces the background of the project and describes the structural design scheme and specific construction details of the deep well working platform.A three-dimensional spatial truss model was established using specialized bridge engineering software,and structural analysis was conducted to determine the load distribution.Calculation analyses were performed according to relevant specifications,including bending capacity calculation,shear capacity calculation,crack resistance calculation for normal cross-sections,crack resistance calculation for inclined cross-sections,and deflection calculation.Static load tests were also conducted on the precast UHPC demountable formwork and precast I-beams.The results obtained from the calculation analysis and static load tests indicate that the working platform structure exhibits sufficient bending and shear capacity,while also meeting the requirements of relevant specifications regarding crack resistance for both normal and inclined cross-sections.Additionally,the deflection analysis confirms that the deformation of the structure remains within a reasonable range.These results provide support for the rationality of the design scheme and offer valuable references for similar projects.关键词
工作井/操作平台/预制梁/免拆模板Key words
work well/operating platform/precast beam/reusable formwork分类
建筑与水利
