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《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

卷:

28卷

期数:

2011年03期

页码:

56-61,73

栏目:

出版日期:

2011-09-20

文章信息/Info

Title:

Analysis of Optimal Removing Location of Diagonal Columns in Large Cooling Towers' Temporary Period

作者:

董锐,赵林,葛耀君

同济大学 土木工程防灾国家重点实验室,上海 200092

Author(s):

DONG Rui, ZHAO Lin, GE Yao-jun

State Key Laboratory for Disaster Reduction in Civil Engineering, Tongji University, Shanghai 200092, China

关键词:

大型冷却塔;  风洞试验;  风荷载;  结构分析;  人字柱;  有限元模型

Keywords:

large cooling tower;  wind tunnel test;  wind loading;  structural analysis;  diagonal column;  finite element model

分类号:

TU317.1

DOI:

-

文献标志码:

A

摘要:

对冷却塔进行了刚性模型测压风洞试验,并在此基础上建立冷却塔结构有限元模型,分析拆除不同位置人字柱时其他人字柱的受力性能。结果表明:风荷载作用下人字柱的受力主要由拉力控制,在背风侧拆除1对人字柱时,其他人字柱的受力性能相对最好; 建议临时拆除人字柱时,结合风洞试验和当地风速、风向资料,综合考虑施工和运输的方便性,尽量选在多塔比例系数较小的吹风角度的背风侧。

Abstract:

Based on the cooling towers' pressure-measured wind tunnel tests of rigid models, finite element model was founded to research the diagonal columns' mechanical property when removing one pair in different positions. The results show that tensile force is dominating in the diagonal columns' all inner forces, and the lee-wind side is the best place to remove one pair of diagonal columns in the temporary period. It is suggested that the removing position should choose the lee-wind side with the smallest wind effect factor based on the wind tunnel tests and the wind speed and direction materials in the field. The convenience in the construction and transportation should also be considered, and the blowing angle in lee-wind side should be collected for smaller group towers' effect factors.

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备注/Memo

备注/Memo:

收稿日期:2011-05-11
基金项目:国家自然科学基金项目(50978203,90715039,51021140005); 科技部国家重点实验室基础研究项目(SLDRCE08-C-02)
作者简介:董 锐(1982-),男,山东滨州人,工学博士研究生,E-mail:09dr@tongji.edu.cn。

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更新日期/Last Update: 2011-09-20