The Analysis Of Heat Transfer About Concrete Column Thermal Bridge Of High-rise

In recent years along with the our country economy long-term stable development, high level and the extra-high building massively emerged, most of which is non- energy conservation and waste huge energy. So the research on the high-rise construction energy conservation , heat transmission conditions of high-rise thermal bridges is extremely essential in particular, This also is our country construction energy conservation to the third stage, namely conserves energy the inevitably request which 65% stage makes great strides forward.In this paper, the research technique which testing in spots and numerical simulation are combined is used, First heat transfer coefficient of the concrete column in Harbin is tested with heat-flow meter. Actual heat transfer coefficient of thermal bridge of high-rise is computed, Second the ANSYS finite element software are adopted to simulate the temperature field of the actual thermal bridge, which directly shows the temperature distribution of the computational zone's and heat flux .By analyzing temperature field in detail, influence scope of thermal bridge is determined.In view of high-rise concrete structure column size and shape difference, through using the ANSYS finite element software mimic calculate and analysis, The heat preservation economical thickness for thermal bridge of the construction column which is adopted poly phenyl board as heat preservation materials can be concluded.This paper conducted a theoretical and practical research with the climate and characteristic of thermal bridges in Harbin area. The methods and conclusions may be useful to the problem.