Seismic Failure Shape Of Our Historic Buildig Masonry Structure Simulation Analysis And Design Of Mansonry Test Sample

The research on the civil construction structure earthquake resistance disaster prevention technology of this article choosing the new wall bricking-up structure with the historic building brick tower , belongs to the national natural fund financing projects (the project authorization number: 50978177) research subject.In order to study seismic behavior of Chinese ancient the brick tower. carry on the antiseismic performance analysis to Shanxi Jinci shed Lisheng tower. obtained the major stress characteristics through the establishment finite element model the equivalent horizontal earthquake lateral force to the tower body structure, has obtained the brick tower principal stress characteristic,and carried on the finite element earthquake stress fine analysis Obtains, the tower body host pulls the destruction is before the main pressure destruction, the destroyed area assumes submits curving the destruction pattern, should submit the condition is not the entire cross section cuts suddenly badly, but is the section edge submits develops gradually to the section, the structure rigidity reduces gradually, its ductility enhances greatly compared to the shearing failureCarried on the finite element analysis to the Dujiang weirs Kui light tower through the model building, exerts the equivalent horizontal earthquake lateral force.Obtains.the brick tower's principal stress characteristic and the host pull the destruction are before the main pressure destruction.the destroyed area assume submit curving the pattern.this kind submits the pattern to request its earthquake resistance to bend the supporting capacity reserve coefficient value is smaller than the earthquake resistance is cut the supporting capacity storage coefficient value.enables its curving supporting capacity limiting condition first to achieve. realizes exempts the cutting brittle failure to submit the pattern, enhanced the bricking-up construction structure ductility, serves the swing purpose not but actually.Based on the historic building brick tower failure mechanism,.studied the horizontal load. the beam-to-depth ratio. the axis to press compared to,. the mortar strength. wall thickness and so on to the bricking-up earthquake resistance wall destruction shape influence. the analysis result indicated that the horizontal lateral force increased makes the test sample the crack to increase. the destroyed area increased, but has not changed each section destruction shape. obtained the horizontal lateral force around through the theoretical calculation to increase obviously has not changed. Along with beam-to-depth ratio enlargement. the bricking-up earthquake resistance wall's earthquake resistance is cut the supporting capacity and the earthquake resistance is bent the supporting capacity to obtain the enhancement, but resists earthquakes is bent the supporting capacity storage coefficient to cut compared to the earthquake resistance the supporting capacity storage coefficient to increase quickly, the test sample from is pulled curving destroys the component to transit gradually to the cutting brittle failure component, the beam-to-depth ratio is big to the bricking-up earthquake resistance wall destruction shape influence; The axis presses compared to enlargement, the test sample from is pulled the destruction to transit gradually curving to the cutting brittle brittle failure. Mortar strength's enlargement, enables the value slightly to have increases.is not remarkable to the test sample destruction shape influence.