Study On Crux Techniques Of Composite Energy-saving Cavitied Curtain Wall System

After reviewing the researches in composite energy-saving curtain wall systems at home and abroad and analysing the present conditions in this area, the thesis presents the composite energy-saving cavitied curtain wall, which is a composite curtain wall with a special cavity to enhance the wall's stability and performance in energy-saving and water-sealing. Based on an analysis of the similarities and differences between the traditional unitized and component curtain walls in calculation and workings, an independent pressure-equalized cavity is established according to the cavity regulation principle of the unitized curtain wall to help enhance the curtain wall's performance in water-sealing and heat insulation. Meanwhile, a multi-angled analysis of the internal and external structures of the curtain wall is made, and the'members-and-brackets-all-under-pressure'principle of the component curtain wall is adopted, so that the wall's stability and seismic resistance are improved. All in all, by employing the composite structures to maximum advantage, the composite energy-saving cavitied curtain wall's physical performance is greatly enhanced.By studying the calculation and workings of the composite energy-saving cavitied curtain wall, the thesis works out the principles of pressure equalization and thermal bridge effect of the composite energy-saving cavitied curtain wall with their calculating methods and formulas. The thesis deals with not only theoretical research but also practical issues. It introduces the construction techniques and materials, especially the crucial construction procedures and quality control methods and tests of the composite energy-saving cavitied curtain wall so as to further illustrate the whole system and its workings.