Earthquake Engineering, Santiago, Chile, January 2017, pp. Welsh-Huggins, Seismic vulnerability of reinforced concrete hillside buildings in Northeast India, in Proc. Kumar et al., The 2015 April 25 Gorkha (Nepal) earthquake and its aftershocks: Implications for lateral heterogeneity on the Main Himalayan Thrust, Geophys. Sharma et al., Damage survey report for Sikkim earthquake of 18 September in Nepal, Seismol. Liu, Earthquake Damage and Consideration of Buildings in Wenchuan Earthquake (Chongqing University Press, Chongqing, 2008) (in Chinese). Moreover, according to the design method proposed in this paper, setting steel braces can improve the seismic collapse resistance capacity of the split-foundation frame structures. Furthermore, setting V-shaped braces can significantly reduce the damage degree of the upper embedding end columns and change the phenomenon of locally severe damage of the split-foundation frame structures. The results show that the horizontal steel brace can improve the phenomenon of damage concentration of the split-foundation frame structures. On this basis, fragility analysis was carried out, and the earthquake-induced collapse resistance capacity of split-foundation frame structures with steel braces was preliminarily evaluated. Then the seismic response and failure mode of the split-foundation frame structures with different braces arrangements were compared. The reasonable seismic waves were selected to carry out the nonlinear dynamic time history analysis. A quasi-static test was carried out to analyze the influence of steel braces on the failure mode of the RC split-foundation frame. Then based on the ratio of lateral stiffness of steel braces and concrete frame columns, the section of steel brace was designed.
According to the deformation characteristics of the upper embedding floor, three types of steel braces arrangement for the split-foundation frame structures were proposed: horizontal braces, V-type braces, and V- type + horizontal braces.
Embeding a pdf with foundation framer install#
It is one way to improve the seismic performance of the split-foundation frame structures to install steel braces in the upper embedding floor. Under the earthquake, the local damage phenomenon of the structures is severe due to the uneven stiffness distribution.
There are two grounding terminals with different heights in the split-foundation frame structures. Reinforced concrete (RC) split-foundation frame structures are widely used in mountainous areas.
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