首页|严寒地区装配式钢结构ALC板围护体系试验房热工性能研究

严寒地区装配式钢结构ALC板围护体系试验房热工性能研究

Experiment Investigation on Thermal Performance of Prefabricated Steel Structure with ALC Plate Envelope in Severe Cold Region

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针对一栋位于严寒地区的主体结构采用装配式钢管混凝土框架结构、墙面采用蒸压加气混凝土板(ALC)自承重墙结合外保温围护体系的单层居住功能试验房,在冬季采暖期采用原位测量非破坏性方法进行周期为119 d的连续测试,完成围护结构热工缺陷检测、室内湿热环境测试、围护结构热工性能测试.结果表明:ALC墙板竖向拼接板缝、钢管混凝土柱墙角、墙脚、窗体均存在热桥.试验房构造做法的墙体传热系数平均值为 0.239 W/(m2·K).试验房蓄热性能良好,停暖后室内气温缓慢降低,历时7d达到最低温度,基本保持恒定.恢复供暖后,室内气温快速回升.测试期内试验房平均气温为 22.4℃,平均相对湿度为 53.8%,舒适性良好.为严寒地区推广应用装配式钢结构和选择保温体系提供了实测数据支持.
For a testing single-storey residence using prefabricated steel tube concrete frame structure with building envelope of autoclaved aerated concrete plate(ALC)combining external thermal insulation in severe cold region,the in-situ measurement with non-destructive method was used to carry out continuous testing for a cycle of 119 days during the winter heating period,and the thermal defects of the envelope structure,the indoor hydrothermal environment test,and the thermal performance test of the envelope structure were completed.The results show that there are thermal bridges in the vertical gap junctions of ALC wall plates,the wall corners of concrete filled steel tubular columns,wall feet and windows.The average value of heat transfer coefficient of the construction practice in the testing building is 0.239 W/(m2·K).The heat storage performance of the test room is good.The indoor temperature is slowly reduced until it remains basically constant for seven days after stopped heat.The indoor temperature rises rapidly when heating.The average air temperature of the test room is 22.4℃.The average relative humidity is 53.8%.Thus,the indoor environment is comfortable.It provides real measured data support for the promotion and application of prefabricated steel structures and the selection of thermal insulation systems in severe cold region.

severe cold regionprefabricated steel structurebuilding envelope with ALC platethermal propertiesthermal comfort

张相勇、王洪兴、高占祥、张鹏飞、李静姝、周华樟

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中建科工集团有限公司,北京 100080

哈尔滨工业大学建筑设计研究院有限公司,哈尔滨 150090

哈尔滨工业大学 土木工程学院,哈尔滨 150090

严寒地区 装配式钢结构 ALC板围护结构 热工性能 热舒适性

住房和城乡建设部研究开发项目

2022-K-147

2024

建筑节能(中英文)
中国建筑东北设计研究院有限公司

建筑节能(中英文)

CSTPCD
影响因子:0.695
ISSN:2096-9422
年,卷(期):2024.52(6)