大跨复杂斜柱钢框架施工全过程的模拟分析

梁岩; 魏莹莹; 冯浩琪; 赵明; 郭靖

doi:10.13204/j.gyjzG201902180009

大跨复杂斜柱钢框架施工全过程的模拟分析

doi: 10.13204/j.gyjzG201902180009

梁岩¹,
魏莹莹¹,
冯浩琪²,
赵明^1, ,,
郭靖¹

1. 郑州大学土木工程学院, 郑州 450001;
2. 中国联合工程有限公司, 杭州 310000

基金项目:

郑州大学青年骨干基金项目(2121ZDGGJS008)。

河南省重点研发与推广专项(科技攻关)(212102310268)

详细信息

作者简介:
梁岩,男,1986年出生,博士,副教授。

通讯作者:
赵明,女,1988年出生,博士,1058497625@qq.com。

计量
- 文章访问数: 96
- HTML全文浏览量: 6
- PDF下载量: 6
- 被引次数: 0
出版历程
- 收稿日期: 2019-02-18
- 网络出版日期: 2022-06-30
- 刊出日期: 2022-02-20

Simulation Analysis on Construction Processes of Long-Span and Complex Steel Frames with Inclined Pillars

1. Department of Civil Engineering, Zhengzhou University, Zhengzhou 450001, China;
2. China United Engineering Corporation Limited, Hangzhou 310000, China

摘要

摘要: 以某遗址保护工程大跨斜柱钢框架建筑为依托建立了有限元模型并对施工全过程进行模拟分析。基于现场实际情况,考虑了遗址原土堆载的影响,对模型进行优化并调整施工阶段,将预应力三阶段张拉方案调整为两阶段张拉方案,得到结构施工过程中斜柱支承系统各构件关键截面应力和桩顶位移,并与相应测点实测数据对比。结果表明:理论值与实测值吻合较好,各构件关键截面应力和桩顶位移均在容许范围内,两阶段张拉方案比较合理且能够保证结构施工过程的安全性;考虑遗址原土堆载的桩简化模型一定程度上能反映斜柱支承系统构件内力及桩顶位移变化规律,具有一定的实用性。
- 大跨钢结构 /
- 斜柱支承系统 /
- 模拟分析 /
- 施工过程 /
- 有限单元法
Abstract: Based on a long-span and complex steel frames building with inclined pillars in a relic protection project, the finite element model was constructed to simulate the whole process of construction. Based on the actual situation of the site, considering the influence of the original soil piled up, the model was optimized and the construction process was adjusted, and the prestressed three-stage tensioning scheme was adjusted to a two-stage tensioning scheme; the stress in crucial sections of inclined pillar support system and the displacement of pillar tops were obtained during the construction process of the structure and compared with the measured data of the corresponding measuring point. The results showed that the theoretical values were in good agreement with the measured values. The crucial section stress and pile top displacement of each members were within the allowable range. The two-stage tensioning scheme was reasonable and could ensure the safety of the construction process of the structure. The simplified model of the piles could reflect the internal forces of the members of the inclined pillar support system and the displacement of the pile tops displacement to a certain extent, and had certain practicability.
- long-span steel structure /
- support system of inclined pillar /
- simulation analysis /
- construction process /
- finite element method

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