空冷支架结构管柱体型系数与群柱效应研究

刘林; 白国良; 孔江涛; 赵春莲; 李红星

doi:10.13204/j.gyjz200903014

空冷支架结构管柱体型系数与群柱效应研究

doi: 10.13204/j.gyjz200903014

1.
1. 西安建筑科技大学,西安 710055;
2.
2. 西北电力设计院,西安 710032

基金项目:

国家自然科学基金资助项目(50778150);陕西省13115科技创新工程重大科技专项(2007ZDKG-39)

计量
- 文章访问数: 89
- HTML全文浏览量: 4
- PDF下载量: 69
- 被引次数: 0
出版历程
- 收稿日期: 2008-03-17
- 刊出日期: 2009-03-20

STUDY ON BODY COEFFICIENT AND PILE CLUSTER EFFECT OF CONCRETE PIPE COLUMNS IN SUPPORT STRUCTURE SYSTEM OF AIR COOLED CONDENSER

1.
1. Xi'an University of Architecture &Technology,Xi'an 710055,China;
2.
2. Northwest Electric Power Design Institute,Xi'an 710032,China

摘要

摘要: 空冷支架结构下部为大直径群柱,上部为钢桁架平台,结构抗风设计时许多参数还不清楚。为掌握该类结构风压分布规律,对1∶150的刚性模型,进行风洞试验研究。同时利用FLUENT6.1流体软件对结构管柱所处风场进行数值模拟,获取不同工况下管柱的整体体形系数。详细介绍风洞试验结果与管柱表面风压试验数据处理方法,将试验结果与数值模拟结果进行对比,验证了CFD数值模拟技术的可行性。
- 空冷支架结构 /
- 管柱 /
- 刚性模型 /
- 风洞试验 /
- 风压分布 /
- 体形系数 /
- 数值模拟
Abstract: Under the support structure system of air cooled condenser there are large-diameter group columns, the proposed wind parameters in present load code can't be used directly in the wind resistance design of this kind of structure. A rigid model with 1:150 scaling factor was made, and wind tunnel test was carried out to study the wind pressure distribution on the large-diameter columns. In order to obtain the body coefficient of the large-diameter column, FLUENT 6.1 software was used to simulate the wind field of the structure. Wind tunnel test for wind pressure distribution on pipe column surface and test data processing were presented in detail. The feasibility of CFD numerical simulation in wind resistance design of structure was verified by comparing the results of wind tunnel test with those of the simulation.
- support structure system of air cooled condenser /
- pipe column /
- rigid model /
- wind tunnel test /
- wind pressure distribution /
- body coefficient /
- numerical simulation

HTML全文

参考文献(9)

.张相庭. 结构风压与风振计算 [M]. 上海: 同济大学出版社, 1985: 1-3.

[2] .顾明, 周印, 张锋, 等. 金茂大厦风致振动的实验研究[J]. 振动工程学报, 2000, 13(2): 188-194.

[3] .黄翔, 顾明. 大跨度结构气弹模型风振响应的阻尼修正系数[J]. 同济大学学报, 2004, 32(11): 1433-1436.

[4] .瞿伟廉, 梁枢果, 项海帆, 等. 对我国建筑结构风荷载规范修改的几点建议[C]//第十一届全国结构风工程学术会议论文集. 2004: 35-40.

[5] .瞿伟廉, 滕军, 项海帆, 等. 风力作用下深圳市民中心屋顶网架结构的智能健康监测[J]. 建筑结构学报, 2006, 27(1): 1-9.

[6] .黄鹏, 顾明, 张锋, 等. 上海金贸大厦静风荷载研究[J]. 建筑结构学报, 1999, 20(6): 63-68.

[7] .吴太成, 强士中, 陈东红. 复杂大跨屋面脉动风压风洞试验研究[J]. 空气动力学学报, 2004, 22(3): 325-331.

[8] .Oliveira P J, Younis B A. On the Prediction of Turbulent Flows around Full-scale Buildings [J]. Journal of Wind Engineering and Industrial Aerodynamics, 2000, 86: 203-220.

[9] .Baetke F, Werner H. Numerical Simulation of Turbulent Flow Over Surface-Mounted Obstacles with Sharp Edges and Corners[J]. Journal of Wind Engineering and Industrial Aerodynamics, 1990, 35: 129-147.

施引文献

资源附件(0)

访问统计