Study on the Influence of Infilled Wall on the Seismic Performance of Bottom Frame Structure

Abstract:

In the current code of seismic design in our country,infilled wall are considered as non-structural component and do not participate in the seismic checking. In the bottom frame structure, the infilled wall of the first floor often change the number and position for using function at random,this will have unfavorable impact on the main structure. In this paper, a serious damaged bottom frame structure in high intensity area in Wenchuan earthquake is taken as the research object,and 3 comparative calculation models are designed, elasto-plastic time-history analysis is carried out on the use of ABAQUS finite element software. The calculation results show that: the first layer containing infilled with high wall content ratio will reduce the first floor damage, but causing the weak layer of the overall structure transfer from the bottom to transitional masonry story which aggravates damage, at the same time, an appropriate increase in wall content ratio can reduce the torsional response at a certain extent; nonuniform arrangement infilled wall has little effect on the floor deformation and resistance, but it will increase the torsional response of the whole structure.

• Periodical: Advanced Materials Research (Volumes 1065-1069)
• Pages: 1249-1253
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1065-1069.1249
• Online since: December 2014
• Authors: Hong Yu Deng*, Bai Tao Sun
• Keywords: Bottom Frame Structure, Infilled Wall, Wall Content Ratio

References

[1] L. Huang, C.X. Shi, W.R. Li, Building Structure , Vol. 35(8), pp.27-29, 2005(in Chinese).

[2] Code for design of concrete structures(GB 50010-2010), Beijing: China Architecture and Building Press, 2010 (in Chinese).

[3] G.Q. Liu, The research on the basic mechanical behavior of masonry structure, Changsha, Hunan University, 2005(in Chinese).

[4] Z.Q. Yin et al., Earthquake Loss Analysis and Fortification Criterion. Beijing: Earthquake Press, 2004. (in Chinese).