箱板装配式钢结构楼盖舒适度分析及其调谐质量阻尼器的振动控制研究

门进杰; 钟鑫; 薛辰; 兰涛; 李然; 张亮

doi:10.13204/j.gyjzG22041411

箱板装配式钢结构楼盖舒适度分析及其调谐质量阻尼器的振动控制研究

doi: 10.13204/j.gyjzG22041411

门进杰¹,
钟鑫¹,
薛辰²,
兰涛^1,2, ,,
李然²,
张亮³

1. 西安建筑科技大学土木工程学院, 西安 710055;
2. 中国船舶重工集团国际工程有限公司, 北京 100121;
3. 徐辉设计股份有限公司, 郑州 450000

基金项目:

国家重点研发计划项目(2019YFE0112900)

中国船舶重工集团科技创新与研发项目(201815K)。

国家钢结构工程技术研究中心研发项目(YZB2019ky02)

详细信息

作者简介:
门进杰,男,1979年出生,博士,教授,men2009@163.com。

通讯作者:
兰涛,男,1976年出生,博士,研究员,qd_lantao@163.com。

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- 被引次数: 0
出版历程
- 收稿日期: 2022-04-14
- 网络出版日期: 2023-05-25
- 刊出日期: 2023-01-20

Comfortable Level Analysis on Floors of Prefabricated Box-Plate Steel Structures with TMD and Their Vibration Control Study

MEN Jinjie¹,
ZHONG Xin¹,
XUE Chen²,
LAN Tao^{1,2
, ,},
LI Ran²,
ZHANG Liang³

1. School of Civil Engineering, Xi’an University of Architecture & Technology, Xi’an 710055, China;
2. CSIC International Engineering Co., Ltd., Beijing 100121, China;
3. Xuhui Design Co., Ltd., Zhengzhou 450000, China

摘要

摘要: 箱板装配式钢结构楼盖是一种由钢板和加劲肋焊接而成的新型装配式楼盖。通过建立若干个箱板装配式钢结构楼盖的有限元模型,研究长宽比、钢板厚度、加劲肋间距及加入调谐质量阻尼器(TMD)对楼盖舒适度的影响。研究结果表明:长宽比由6∶6增加至10∶6时,会导致竖向基频降低,降幅最大达29.6%,同时降低了人行激励产生的竖向峰值加速度;钢板厚度由6 mm增加至10 mm时,对楼盖的竖向基频影响较小,对竖向峰值加速度影响显著,降幅最大达68.8%;T型加劲肋间距由1.5 m增至3.0 m时,会导致竖向基频降低,降幅最大达33.8%,同时竖向峰值加速度增幅最大为0.1 m/s²。当钢板厚度较小且加劲肋间距过大时,容易造成楼盖局部振颤,局部产生较大的峰值加速度,加入调谐质量阻尼器能有效增加楼盖参与振动的质量,并且有效改善楼盖舒适度,满足设计标准的要求。
- 箱板装配式钢结构 /
- 振动舒适度 /
- 峰值加速度 /
- 竖向基频 /
- 调谐质量阻尼器
Abstract: Prefabricated box-plate steel structure floors are a new type of prefabricated structures welded by steel sheets and stiffeners. Through construction of a number of finite element models of box-plate steel structure floors, the aspect ratio, thickness of steel sheet, stiffener spacing, and the influence of installed tuned mass dampers (TMD) on floors of comfortable levels were studied. The results showed that: the aspect ratio increased from 6∶6 to 10∶6, which could reduce vertical fundamental frequencies by up to 29.6% and reduce the vertical peak acceleration excited by pedestrains. Thicknesses of steel sheets increased from 6 mm to 10 mm, which had a little of effect on vertical fundamental frequencies of floors, but significant influence on the vertical peak acceleration by up to 68.8%; That T-stiffener spacing increased from 1.5 m to 3.0 m could reduce the vertical fundamental frequencies by up to 33.8%, simultaneouly, the vertical peak acceleration increased to 0.1 m/s². When the thicknesses of steel sheets were smaller and stiffener spacing was larger, it was easy to cause locad vibration for floors and larger peak acceleration locally. The tuned mass dampers (TMD) could effectively improve masses of floors in vibration as well as floor comfortable levels which could meet the specification requirements.
- prefabricated box-plate steel structure /
- vibration comfortable level /
- peak acceleration /
- vertical fundamental frequency /
- tuned mass damper

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参考文献(11)

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