Study On Shear Behavior Of Prefabricated Concrete Hollow Formwork Shear Wall

The precast two-way hollow slab shear wall structure is a new type of prefabricated shear wallstructure for its unique internal structure. There is very little research on the precast two-way hollowslab shear wall structure in the world. New shear wall structure can be standardized production, easyto transport or lifting, and have fine structural integrity. The research of precast two-way hollow slabshear wall structure had significant theoretical and application value.The seismic behavior of precast two-way hollow slab shear wall was analyzed throughquasi-static test and finite element analysis on ABAQUS.The research included the following parts:（1）Low-cycleloadingtests werecarriedoutforoneprecasttwo-wayhollowslabshearwalland one contrastive concrete shear wall. On the basis of experiments，the seismic behavior of precasttwo-way hollow slab shear wall are analyzed. The test results indicate that the failure mechanism ofprefabricated wall should be considered a non-brittle one that helps improve the seismic behavior.（2）Based on the test results, the carrying capacity, ductility, distribution and composition ofhorizontal deformation, reinforced strain, stiffness degradation energy consumption and failuremechanisms of the precast two-way hollow slab shear wall was analyzed. The parameters such asinternal joints, axial compression ratio, shear span ratio and horizontal reinforcement impact on theseismic performance were studied. The internal joint was the key factor to the seismic performanceof the prefabricated wall. The internal joint guided shear damage, changing shear mechanism of theprefabricated wall.（3）The reasonable finite element model of precast two-way hollow slab shear wall wasestablished based on ABAQUS. The results of numerical analysis were in good agreement withexisting experimental results for five piece of precast two-way hollow slab shear wall with differentparameter. The rationality of the finite element model was verified. This finite element model can beused on parameter analysis for precast two-way hollow slab shear wall.（4）The method of calculating the shear capacity of the precast two-way hollow slab shearwall was recommended.