Experimental Research of Assembly-Box Concrete Hollow Floor System under Gravity Load

Abstract:

Assembly-box concrete hollow floor is a new kind of cellular voided floor structure, in which a lot of prefabricated box-shaped interior forms are placed regularly on the formwork before the floor concrete is cast. The new type of box-shaped filler is termed assembly-box and could behave as load-bearing elements. Such floor system has many advantages, such as low self-weight, good mechanical behavior, equally flexural stiffness in two directions and high voided rate. The characteristic of this floor structure is the combination of precast assembly-box and cast-in orthogonal grids of ribs. For the purpose of understanding the behavior of this floor, a test has been carried out with three scale specimens under vertical loading. All experimental values provide essentially the same result that a typical flexural failure occurred under ultimate load and the structural system of assembly-box hollow could behave like an overall cast-in hollow floor. A part of the top plate in assembly-box could be viewed as the flange of rib beam during the process of structural design.

• Periodical: Advanced Materials Research (Volumes 243-249)
• Pages: 193-197
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.243-249.193
• Online since: May 2011
• Authors: Jun Yan Liu, Gang Lu, Shou Qian Liu, Qun Xie
• Keywords: Assembly-Box, Hollow Floor, Ultimate Load Capacity

References

[1] Mario E.Rodriguez, Sergio Santiago and Roberto Meli: Journal of Strutural Engineering Vol.9(1995), pp.1287-1293.

[2] Liu Jianming and Shen Xingyu: Journal of Shenyang Jianzhu University Vol.23(2007), pp.572-575,in Chinese.

[3] Cheng Yuan-bing and Cheng Wen: Journal of Henan University Vol.35(2005), pp.91-94,in Chinese.

[4] Tan Lei, Liu Xi-jun and Zhu Ming-qiao:Journal of Hunan University of Science&Technology Vol.23(2008), pp.75-78,in Chinese.