The Reliability of Enlarging the Cross-Section in Reinforcing the Frame Construction Buildings

Abstract:

Concrete frame structure in epicenter region has greatly damaged by Wenchuan Earthquake, especially short columns. Plenty of means for reinforcing these structures have been used. Finite element software ANSYS is used to simulate mechanical properties of structures after reinforced by broaden-section under monotonic or cyclic load. Comparison of frame’s horizontal displacement, crack of bearing carrier and distribution of node’s shearing stress etc. before and after reinforcing, it proves that broaden-section method is feasible in reinforcing of frame structure. Most of all, it verifies that broaden-section method has better reliability on reinforcing of RC frame’s short column.

• Periodical: Advanced Materials Research (Volumes 189-193)
• Pages: 4365-4369
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.189-193.4365
• Online since: February 2011
• Authors: Huai Ren Guo
• Keywords: Broaden-Section Method, Crack, Reinforcement, Reliability, Seismic Damaged RC Frame

References

[1] Civil and Structural Groups of Tsinghua Univercity, Xinan Jiaotong University and Beijing Jiaotong University., Analysis on seismic damage of buildings in the wenchuan earthquake, [J]. Journal of Building Structures, (2008).

[2] LI Hongnan, XIAO Shiyun, HUO Linsheng. Damage investigation and analysis of engineering structures in the wenchuan earthquake [J]. Journal of Building Structures, (2008), 29(4): 10-19(in Chinese).

[3] LIU Zhong-fu, ZHENG Xing-quan . An Analysis of the Section-enlarging Reinforcing Method for Concrete [J]. Traffic engineering and technology for national defense, (2006), 4. (4).

[4] SUN Wen-bin. A Brotice to Reinforce a Reinforced Concrete Frame Column by Enlargement Section Method. [J]. Optimization Of capital construction, (2006), 27. (6).

[5] Yuan Wen-yang. Strengthening practical design and the typical examples of engineering structure[M]. China Architecture & Building Press, (2008).

[6] JGJ116-98 Technical Specification for Seismic Strengthening for Buildings [S]. Beijing China Architecture Industry Press, (1999), (in Chinese).

[7] GB 50011-2001, Code for seismic design of building [s] Beijing China Architecture Industry Press, 2001(in Chinese).