NDLI: Experimental study on thermal performance of improved open-web roofs with induced ventilation

Content Provider	IEEE Xplore Digital Library
Author	Nan Xiao Huapeng Chen Liqiang Sun Xiang Wang
Copyright Year	2011
Description	Author affiliation: Zhejiang Bada Construction Group Co., Ltd., Zhuji 311800, China (Huapeng Chen) \|\| College of Civil Engineering & Architecture, Zhejiang University, Hangzhou 310058, China (Nan Xiao; Xiang Wang) \|\| Department of Civil Engineering, University of Greenwich, Chatham Maritime, Kent, ME4 4TB, UK (Liqiang Sun)
Abstract	The double layer open-web roof structure is a type of heat preservation and insulation roof structures, in particular suitable for medium and large span roof structures. However, the construction procedures for traditional open-web roof structures are rather complicated because of the built-in molds in the cavity. On the other hand, passive ventilation is an effective route to enhance the thermal performance of the building envelope. In this paper, an improved open-web roof structure is presented. The steel tube shear connectors are employed to replace the tubby reinforced concrete shear connectors. The adopted shear connectors have small holes in the middle part of their heights. This improvement not only simplifies the construction procedures, but also enhances the thermal performance for open-web roof structures. In order to verify the effectiveness of proposed new open-web roofs, experiments with temperature measurements were performed for a real roof structure. The measured results show that nearly half of the heat flow is drawn out from the cavity due to the induced ventilation. The proposed new open-web roofs have significant improvement and effectiveness on thermal performances, when comparing with traditional open-web roof structures.
Starting Page	6398
Ending Page	6401
File Size	258119
Page Count	4
File Format	PDF
ISBN	9781612847719
e-ISBN	9781612847740
DOI	10.1109/ICMT.2011.6002740
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-07-26
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Temperature measurement Connectors Buildings Open-web structure Ventilation Temperature measurment Cavity resonators Induced ventilation On-site experiment Steel Double layer roof Slabs
Content Type	Text
Resource Type	Article

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