某超长厂房预应力楼盖设计及检测

秦士洪; 龙贤能; 李唐宁; 皮天祥

doi:10.11835/j.issn.1674-4764.2005.06.011

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某超长厂房预应力楼盖设计及检测

更新时间：2023-11-28

- 某超长厂房预应力楼盖设计及检测
- Design and Test of an Exceedingly-long Prestressed Workshop Floor
- 土木与环境工程学报（中英文） 2005年27卷第6期页码：49-54
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- DOI：10.11835/j.issn.1674-4764.2005.06.011
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- 纸质出版：2005
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秦士洪, 龙贤能, 李唐宁, 等. 某超长厂房预应力楼盖设计及检测[J]. 土木与环境工程学报（中英文）, 2005,27(6):49-54.

QIN Shi-hong~1, LONG Xian-neng~2, LI Tang-ning~1, et al. Design and Test of an Exceedingly-long Prestressed Workshop Floor[J]. Journal of Civil and Environmental Engineering, 2005, 27(6): 49-54.
秦士洪, 龙贤能, 李唐宁, 等. 某超长厂房预应力楼盖设计及检测[J]. 土木与环境工程学报（中英文）, 2005,27(6):49-54. DOI： 10.11835/j.issn.1674-4764.2005.06.011.

QIN Shi-hong~1, LONG Xian-neng~2, LI Tang-ning~1, et al. Design and Test of an Exceedingly-long Prestressed Workshop Floor[J]. Journal of Civil and Environmental Engineering, 2005, 27(6): 49-54. DOI： 10.11835/j.issn.1674-4764.2005.06.011.

摘要

通过一个预应力梁板结构工程实例，简要介绍了4跨超长楼盖预应力方案的优化设计。文中对预应力主梁方案和次梁方案以及次梁方案中不同次梁间距布置进行了分析比较，同时还结合超长预应力束的不同处理方式进行了综合比较，最后抽取其中两根预应力梁进行了张拉过程和张拉锚固后的预应力损失、以及梁中所建立的预应力值和跨中的反拱值的检测，对理论分析结果进行了验证。

Abstract

Based on the project of a prestressed concrete beam-slab structure

this paper introduces the optimum design of a four-spanned exceedingly long prestressed floor. Different schemes

such as the scheme of the prestressed major beam

the scheme of the prestressed secondary beam with the same span and the scheme of the prestressed secondary beam with different spacing

are compared and analyzed in this paper.Meanwhile

various methods of the exceedingly treatment for long prestressed reinforcement are compared.Finally

based on two prestressed beams

the prestress loss

the prestressing value at the ends of the beam and the deflection in the midspan of the beam are detected during the tension and anchorage stage in order to verify the results of the theoretical analysis.

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