Study On Dynamic Time-history Analysis Of Adobe Wall Based On ANSYS

Xinjiang earthquake fault zone and more broadly into three pieces, southern Kunlun faultzone, the Pamirs-Tianshan seismic zone, Altay fault. Frequent earthquakes, magnitude large,poor concentration, poor living conditions. Subject to economic conditions and other factors,coupled with the low cost of adobe houses, local materials, construction convenient, goodinsulation properties and other favorable conditions, the southern region there are still a lot ofadobe buildings. But previous damage showed poor seismic performance of adobe houses, theability to withstand seismic action needs to be improved.In this paper, Authors using ANSYS finite element analysis software analyze adobe wallsby elastic dynamic analysis. Base on“Technical specification for concrete structures risebuilding”, Select two natural wave and an artificial wave, according to the rare earthquake of8degrees amplitude modulation, modal analysis obtained by the natural frequency of the walland the natural period, draw a different spectral response of the wall under the aspect ratio tofind the seismic waves caused by the resonance region of the wall.By ANSYS finite element analysis software，Authors analyze adobe wall Wall openingsby Elastic-plastic dynamic time history analysis method. By observing the wall deformation,crack distribution, carry case cracks, damage and time to find the weak link structure, seismicperformance evaluation of structures. Multi-wall cracks appeared in the structure of weakness,not open cracks in the wall at the bottom of the hole is mainly walls, cracks in the wall toopen the bottom of the hole and the hole located in the wall, the main reason for the cracks isstress concentration. When the destruction of the wall occurs, the damage to the area of thewall is small, generally less than10%, indicating that elements adobe wall energy dissipationcapacity is poor. Numerical analysis shows that the wall by the first cracks appear at thebottom of the wall basically, because this is the tension cracks in the earthquake action. Adobewalls prime role in the earthquake damaged the part about2s on brittle failure, does not meetthe "anti-regulation" requirement, should be reinforced. Select different sizes of wood frame elements adobe wall reinforcement, still usingANSYS numerical analysis software, when the wall of reinforced elastic-plastic dynamicanalysis process. Wooden frame can be effectively bound by adobe walls, improving theenergy dissipation capacity of the wall, the delay time of the destruction of the wall of anotherwooden frame: wooden frame can effectively improve the seismic performance of adobe wallelements, embodied in the data analysis shows You can consume the energy of the earthquake.