The Impact Analysis Of Open Hole Or Not For Failure Mode And Elastic Lateral Stiffness In Adobe Wall

The seismic performance of raw soil structure was weak.Damage was quite serious in previous earthquake,and huge losses was caused.With the rapid development of our economy and the well-off society was gradually completed,rural residents for residential environment and the comfort of the demand was higher and higher.The traditional structure of raw soil buildings did not have large cave,or only set up small size ventilation opening.House daylighting was bad,and affected the normal operating requirement of the residents.In order to solve the problem of house daylighting is poorer for raw soil structure,the research puts forward the horse tooth if connection structural measures and after pouring concrete constructional column adobe wall as the foundation,to open in the adobe wall can meet the requirements of normal lighting requirements.The seismic performance test of window opening adobe wall was studied.The green environmental protection structure not only meet the requirements of indoor daylighting,ventilated wait for living environment,but also lateral stiffness will not be greatly weakenedThis article through the low cycle reciprocating loading test for the window hole and don't open the window hole in adobe wall,and the scale of the ratio was 1:2.The failure modes of the adobe wall and lateral stiffness for the hold wall were studied.The wall material mechanical performance was tested,and the wall material mechanics index was got.The hysteresis curve,skeleton curve,stiffness degradation curve and deformation curve for the holed wall and don't holed wall were contrasted.The bearing capacity,stiffness,deformation and energy dissipation,ductility aseismic performance index for two walls were analyzed.The influence factors of the elastic lateral stiffness for the holed wall were summarized.Through wall section stiffness calculation model,a simplified calculation formula of elastic lateral stiffness for the holed wall have been proposed.The calculated value of elastic lateral stiffness for the two walls was compared with the test results.Error exists between calculated value and experimental value,the error was corrected by stiffness correction coefficientThe results show that the hole weaken the horizontal bearing capacity and stiffness of the adobe wall,but improved the ductility and deformation performance of adobe walls;Malaysia teeth can ensure adobe walls and concrete constructional column connections and work together;Adobe wall window hole and should took other measures for strengthening a window on the hole wall to improve the bearing capacity,such as setting steel frame,set up concrete constructional column on both sides of the hole,etc.The research results of contrast test in this paper provided the basis for seismic design of the window opening adobe wall.Simplified calculation formula for the elastic lateral stiffness had a certain engineering significance,and provided reference for the theoretical calculation of the raw soil structure wall.