Research On Reinforced Concrete Frame-form Latticed Concrete Infill Wall Structure With Shaking Table Test

EPSC Form Latticed Concrete Wall is a new type wall with the function ofload-bearing, heat preservation, flame retardants, seismic and environmentalprotection, having a good application prospect. In order to apply the wall into framestructure, a1:1ration of single full-scale reinforced concrete frame of EPSC formlatticed concrete infill wall model were simulated with shaking table test. The articlestudied the integral seismic capacity, damage characteristics of different height-lengthratio walls and the acceleration, displacement and the strain response of the steelunder different earthquake and different seismic intensity of the structure. The mainconclusions are as follows:(1) The reinforced concrete frame of EPSC form latticed concrete infill wallstructure has a good seismic performance, the dynamic testing result indicates thatunder the1.0g peak acceleration, the EPSC form of the test model has serious damage,but the reinforced concrete frame structure is in good condition.(2) The damage form of ESPC Form Latticed Concrete infill wall, which has aheight-length ratio at2.57and2.00, is a type of shear-bending; the damage form ofESPC Form Latticed Concrete infill wall, which has a height-length ratio at1:1, is atype of shear. In elastic stage the natural frequencies of the model in the longitudinaland transverse are14.29Hz and16.67Hz, which indicates that the structure has a highrigidity. As the damage increased, the natural frequencies of the structure graduallydecreased slightly.(3) The dynamic testing result demonstrates that the vertical and horizontal steelbar in the lattice column and lattice beam can bear seismic shear force, delay andrestrict the formation and expansion of cracks. Therefore, in checking the formula ofseismic shear capacity, we should consider the contribution of the lattice beam. Inaddition, by contrastive analyzing the strain response, we found that increasingvertical reinforcements of the latticed concrete infill wall and arranging horizontalreinforcements through the wall can effectively guarantee the collaborative work ofthe infilled wall and frame.(4) In the elastic state, the in-plane acceleration response along the height of themodel is a linear distribution, while the out-plane acceleration response along the height is different from the increased linear distribution, mainly reflected manifestedas the acceleration response of the middle of the wall is increased more than the linearscale.