Static And Dynamic Analysis Of Stone Arch Dam Structure Was Studied Using The Three-Dimensional Finite Element

The stone arch dam structure is the usual dam structure style in miniature water conservancy engineering.It can be made of a little cement,a mass of stone material,grit material can use local material,It requires low construct machine and technique,easy to be masteried by many people.So we must study the stress and deformation of stone arch dam,it's very important to design and safety estimate.On the basis of the already research result,the stress and deformation of stone arch dam are analyzed using the commerce finite element software ANSYS in a variety of body condition, In static study,this analysis took into account the gravity, water pressure, temperature stress, soil and sand pressure,carry through heat-solid coupling effective. It traverses the vibration mode stack response spectrum in the earthquake dynamicl, finds some laws of the dam stress and strain, for the design and evaluation of the dam to provide reference information. The main conclusions are as follows by calculation:(1).In this paper, through the temperature field analysis of the dam, we can see that the temperature on the arch dam is a greater impact on displacement, the temperature drop downstream from the dam to the displacement, temperature rise caused the dam to the upper reaches of displacement, temperature stress on the impact limited to the lesser, The arch dam-and table-gate dun lower the stress does have a certain impact.(2).This paper used to solve the stone arch dam hydrodynamic pressure means and the secondary empolder of methods and procedures of the module, the structure can be achieved - the coupling of the solid-water body, the dynamometer result of stone arch dam results in line with general law.(3).Static analysis results show that no matter what conditions, the dam displacement contours basic symmetry;dam draw stress is bigger in the junction of the dam and frusta,upstream of the two arch extrenity and near the central beam crown. Near the bottom of the upstream face, body suppress stress is bigger in the lower reaches of the dam surface archbeam crown in the bottom of the hole for a table stone arch dam, the dam heel, toe dam, piers and other features of parts prone to stress concentration phenomenon. (4).Seismic analysis showed that, whether vertical or along the river,a greater displacement values will be in the top of the arch dam arch crown department, and the smaller displacement will be in the lower part of the dam;The dam seismic stress generally is that the body surface stress is bigger,the stress on the dam, the downstream side of the dynamic stress is bigger than the upstream side. Elevation at the same level of the dam section, the the level seismic stress and shock shear stress are gradually increasing from the upper to lower reaches of every points of dam.