大跨度干煤棚预应力钢结构施工模拟仿真计算与施工技术研究
摘要：大唐洛阳热电公司干煤棚采用了大跨度预应力钢桁架结构，鉴于施工现场堆煤区无法移走的条件限制，该工程采用了累积滑移加分段吊装的施工方案，其中预应力的施工贯穿于整个施工过程中。施工前进行了施工模拟仿真计算分析，确定了施工方案，指出了施工技术重点及预应力张拉施工要点。同时，在施工中进行了施工监测，监测结果证明，施工成果完全达到要求。
关键词：钢结构拉索预应力滑移施工技术
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参考文献[1] 胡洋，杜彦凯，靳卫恒，等.人民日报社报刊综合楼索网幕墙预应力设计与施工[J].建筑结构，2017,47(5):93-97.
[2] 冯战坤，李存良，王兴宇，等.某项目大跨度张弦桁架预应力拉索安装技术[J].施工技术，2020,49(20):59-61,83.
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[4] 张晋勋，高树栋，王泽强，等.国家速滑馆大跨度马鞍形索网结构关键施工技术[J].施工技术，2019,48(24):41-44,48.
[2] 冯战坤，李存良，王兴宇，等.某项目大跨度张弦桁架预应力拉索安装技术[J].施工技术，2020,49(20):59-61,83.
[3] 李宁，董洁.重庆西站施工及预应力关键技术[J].施工技术，2020,49(2):34-39.
[4] 张晋勋，高树栋，王泽强，等.国家速滑馆大跨度马鞍形索网结构关键施工技术[J].施工技术，2019,48(24):41-44,48.
Simulation Calculation and Construction Technology Research of Long-span Dry Coal Shed
Abstract: The long-span prestressed steel truss structure is adopted in the dry coal shed of Datang Luoyang Thermal Power Company. In view of the limitation that the coal piling area on the construction site cannot be removed, the project adopts the construction scheme of accumulative sliding and segmental hoisting, in which the construction of prestress runs through the whole construction process.The construction simulation calculation and analysis were carried out before the construction, then the construction scheme was determined. The construction monitoring was carried out during the construction, and good construction results were obtained. The construction technology and construction method of this kind of structure can provide reference for similar projects.
Keywords: steel structures; cables; prestress; sliding; construction
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