| 引用本文: | 武胜,张素梅,杨华.腹板开孔轻钢龙骨复合墙体传热性能试验[J].哈尔滨工业大学学报,2010,42(4):550.DOI:10.11918/j.issn.0367-6234.2010.04.010 |
| WU Sheng,ZHANG Su-mei,YANG Hua.Experimental research on thermal behavior of light gauge steel-framed composite walls with slotted studs[J].Journal of Harbin Institute of Technology,2010,42(4):550.DOI:10.11918/j.issn.0367-6234.2010.04.010 |
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| 摘要: |
| 为进一步探讨优化轻钢龙骨复合墙体传热性能的有效途径,扩大其在我国寒冷地区的应用,采用热电偶测温方法进行了腹板开孔、带外保温层腹板开孔轻钢龙骨复合墙体传热性能的试验研究,重点考察了墙体的传热系数和测点温度,并与有限元建模分析所得墙体的平均传热系数和测点温度进行细致对比.结果表明:腹板开孔可以降低轻钢龙骨墙体的热损失,从而削弱龙骨所在部位的热桥效应,显著提高墙体的保温性能.两种试验方案的墙体传热系数分别为0.315W/(m2·K)、0.250W/(m2·K),可以满足我国寒冷地区居住建筑围护结构节能50%的传热系数限值要求. |
| 关键词: 轻钢龙骨复合墙体 腹板开孔 传热性能试验 有限元分析 |
| DOI：10.11918/j.issn.0367-6234.2010.04.010 |
| 分类号:TU392.5 |
| 基金项目:哈尔滨市墙体材料改革与建筑节能科研项目(2005-12) |
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| Experimental research on thermal behavior of light gauge steel-framed composite walls with slotted studs |
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WU Sheng1,2, ZHANG Su-mei1, YANG Hua1
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1.School of Civil Engineering,Harbin Institute of Technology,Harbin 150090,China;2.College of Civil Engineering,Northeast Forestry University,Harbin 150040,China
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| Abstract: |
| Two thermal behavior experiments of light gauge steel-framed composite walls with slotted studs and with external thermal insulation layers were carried.The method of thermocouple temperature measurement was used.The heat transfer coefficients and the temperature of measured points of composite wall were deeply investigated and were compared with the FEA model results.Results show that web slotted studs can reduce the heat loss of light gauge steel-framed composite walls,thus weaken the thermal bridge effect of the location in stud part,then significantly improve the thermal insulation properties of composite walls.The composite wall heat transfer coefficient of the two test schemes are 0.315 W/(m2·K) and 0.250 W/(m2·K) respectively,which can meet the residential building envelope heat transfer coefficient limit value of cold areas. |
| Key words: light gauge steel-framed composite walls slotted in web plate thermal behavior experiment finite element analysis (FEA) |
