| 引用本文: | 王化杰,陈友,钱宏亮,金晓飞,来佳琪.网架模型日照非均匀温度场试验[J].哈尔滨工业大学学报,2018,50(1):191.DOI:10.11918/j.issn.0367-6234.201605091 |
| WANG Huajie,CHEN You,QIAN Hongliang,JIN Xiaofei,LAI Jiaqi.Experimental study on non-uniform temperature field of grid structure model under solar radiation[J].Journal of Harbin Institute of Technology,2018,50(1):191.DOI:10.11918/j.issn.0367-6234.201605091 |
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| 网架模型日照非均匀温度场试验 |
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王化杰1,2,陈友2,3,钱宏亮1,2,金晓飞4,来佳琪3
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(1.哈尔滨工业大学(威海) 土木工程系,山东 威海 264209;2.哈尔滨工业大学 土木工程学院,哈尔滨 150090; 3.中国联合工程公司,杭州 310052;4.中建一局集团公司总承包公司,北京 100161)
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| 摘要: |
| 为得到日照下空间钢结构非均匀温度场分布规律，给现有非均匀温度场模拟方法提供标准、可靠的试验验证依据，设计并制作了标准的三角形平板网架模型，对其均匀温度场试验进行了详细设计，完成了不同环境下三角形平板网架非均匀温度场的连续测量，得到了较为全面的网架结构非均匀温度场试验数据，并对其进行了详细分析，结果表明，网架结构杆件水平放置时，摆放角度对杆件温度变化影响不大，非水平放置时，摆放角度影响较大，不同杆件间温差最大可达13 ℃，网架模型非均匀温度场效应明显; 最后建立了三角形平板网架非均匀温度场有限元分析模型，采用考虑阴影的数值模拟方法对试验进行模拟分析，并将模拟结果与实测结果进行对比，试验结果与数值模拟结果基本相同，全天平均误差率不超过6%.考虑阴影遮挡的非均匀温度场模拟方法可用于结构非均匀温度场分析，模型试验可为同类非均匀温度场模拟方法提供验证依据.
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| 关键词: 钢结构 网架模型 试验研究 非均匀温度场 摆放角度 |
| DOI：10.11918/j.issn.0367-6234.201605091 |
| 分类号:TU391 |
| 文献标识码:A |
| 基金项目:中国建筑股份有限公司科技研发课题(CSCEC-2012-Z-07)； 国家自然科学基金面上项目(51378149)； 国家自然科学基金青年基金(51308154) |
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| Experimental study on non-uniform temperature field of grid structure model under solar radiation |
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WANG Huajie1,2, CHEN You2,3, QIAN Hongliang1,2, JIN Xiaofei4, LAI Jiaqi3
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(1.Department of Civil Engineering, Harbin Institute of Technology at Weihai, Weihai 264209, Shandong, China; 2.School of Civil Engineering, Harbin Institute of Technology, Harbin 150090, China; 3.China United Engineering Company, Hangzhou 310052, China;4.China Construction First Engineering Division Co., Ltd., Beijing 100161, China)
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| Abstract: |
| To obtain the temperature distribution rules of steel structures under solar radiation and offer standard reference and reliable basis for related numerical research, temperature field test of a specially designed triangle space truss model was carried out under various conditions. Through the continuous measurements, abundance experimental data and distribution rules were obtained and analyzed in detail. According to the comprehensive test results, solar temperature distribution rules under different conditions were summarized initially. Laying angle has a great influence on temperature field of members in non-horizontal location, while it has little influence on horizontal ones, and the maximum temperature difference between different members can reach 13 centigrade. Then numerical simulation for solar temperature field of the test model was conducted contrastively considering the shadow effect. The results show that test results and simulation results are almost the same, in which the average error rate is not more than 6%. The proposed simulation methods are effective for structural non-uniform temperature field analysis, and the experimental study and conclusions can provide valuable references for other similar analysis methods of temperature field.
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| Key words: steel structure truss model experimental study non-uniform temperature field display angle |
