Study on Calculation of Interface between Fresh-Old Concrete in Assembled Monolithic Water-Distributing Beam

Abstract:

The fresh-old concrete bonding interface is the key to designing assembled monolithic water-distributing beam of mechanical draft cooling tower. Force mechanism analysis indicated the loading-failure process was closely related to the development of cracks, which, combined with moist circumstance, aggravated corrosion. So the interface must be controlled in uncracked. In the critical condition, aggregate interlock of concrete and dowel action of reinforcement composed the shear strength of interface. Affected by the combined impact of shear force and moment, main rebar is under a state of complex stress, the principal stress of which can be calculated by the forth strength theory. Toutilize the rebar completely, the length of rebar in cast-in-site part should abide by the anchorage length.

• Periodical: Applied Mechanics and Materials (Volumes 638-640)
• Pages: 250-254
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.638-640.250
• Online since: September 2014
• Authors: Hua Tian*, Zi Xian Zhang
• Keywords: Assembled Monolithic Concrete Structure, Bearing Capacity, Fresh-Old Concrete, Interfaces

References

[1] Z.F. Zhao, et al: Industrial Construction, 2002, 32(10): 37-39, in Chinese.

[2] T.M. Hu, C.K. Huang and F. Xiao: Concrete, 2009, 3: 26-28, in Chinese.

[3] L. Xu, E.Y. Sun and Z.D. Li: Shuili Xuebao, 2002(7); 138-139, in Chinese.

[4] Q. Yuan and J. Liu: Journal of Building Structures, 2001, 22(2): 46-50, in Chinese.

[5] P.X. Li et al: Shuili Xuebao, 2005(5): 1-8, in Chinese.

[6] Y.J. Lin, Y.J. Qian and Z.L. Wang: Industrial Construction, 2006(36): 844-846, in Chinese.

[7] H.L. Zuo, Y.P. Song and G.F. Zhao: Journal of Dalian University of Technology, 1996, 36(6): 789-794, in Chinese.

[8] W.Q. Liu, D. Jiang and D.J. Ding: Journal of Building Structures, 1994, 15(4) , in Chinese.

[9] S. Zhang, et al: Journal of Building Structures, 2011, 32(2): 48-53, in Chinese.

[10] Z.J. Zhang: Zhejiang Institute of Silk Textiles, 1993, 10(2): 54-58, in Chinese.

[11] S.S. Shi.: China civil engineering Journal, 1999, 32(2): 47-52, in Chinese.

[12] GB 50010-2010, Code for design of concrete structures. Beijing: China Building Industry  Press, 2010, in Chinese.

[13] G.P. Zhao. Senior reinforced concrete structure. Beijing: China Electric Power Press, 1999, in Chinese.