Temperature Crack and Control Measure of Long-Span Beam Type Conversion Layers

Abstract:

In the high-rise building, the conversion layer is often set when the structure of upper and lower floors are different. This conversion layer plays the role of transitional connection. But the force is complex, the conversion layer is the weak layer of the structure and it is the difficulties of the structure design and building construction. However, conversion layer has large section size, bulky, complicated structure the temperature stress to generated cracks in long-span beam type conversion layers. In this paper, directed towards the long-span beam type conversion layer characteristics, combined with tempertural stress in mass concrete causes, proposed control points of long-span beam type conversion layer . It has practical directive significance for long-span beam type conversion layer.

• Periodical: Advanced Materials Research (Volumes 250-253)
• Pages: 3155-3158
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.250-253.3155
• Online since: May 2011
• Authors: Shi Bao Luo
• Keywords: Beam Type Conversion Layers, Construction Measure, Crack Control, Pre-Stress, Temperature

References

[1] X.R. Tang. Transfer story high-rise building design and construction. China Building Industry Press(2002).

[2] B.F. Zhu. Mass concrete temperature stress and temperature control. China Electric Power Press( 1999).

[3] Y.G. Pan. Hydration heat of concrete numerical calculation of transient temperature field in the process of hydration and hydration heat release rate of problems. Xi'an University of Architecture Technology, Vol.31,No.3,277-279(1999).

[4] M. Xiang, C.J. Yang. Law of high strength concrete hydration heat. Concrete, Vol.161,No.3,27-29(2003).

[5] Y.L. Chang, Y. Shen. Mass concrete construction. China Building Industry Press(1987).

[6] J. Zhao. Tall building construction handbook (2nd edition). Tongji University Press(1997).

[7] Kak Tien Chong, Stephen J. Foster, R. Ian Gilbert. Time-dependent modelling of RC structure using the cracked membrane model and solidification theory. Computers and Structures, No.86,1305-1317(2008).

DOI: 10.1016/j.compstruc.2007.08.005

[8] y.k. Wu. Concrete pouring layer temperature calculation. Hydroelectric Engineering, No.1,65-70(1989).

[9] J.P. Wei. Concrete pouring surface temperature field in the first calculation of boundary conditions. North Water Transfer Project, Vol.16,No.1,57-58(1995).