scheme arch
3.In light of the difficulties in structural design of extra-large foundation pit in Kunming,this paper proposes a supporting design scheme effectively combined pile and arch with internal bracing,and carries out simulation of the deformation after foundation pit structural supporting with finite element software ANSYS,which to effective guide the design of supporting structure and the situation probably met in construction.
4.According to the demands of design and construction of a large spanarch brige, a feasible test scheme on sturdy framework concrete arch bri-dge has been put forward and the stress redistribution at the section ofarch crown of model as well as prototype has been calculated and analy-zed by using the method of creep conversion section property.
6.In order to optimize the perpetuation tensioning tonnage of prestressed pier anchor wire of Goupitan arch dam, first the scheme contrast method is adopted to define the perpetuation tensioning tonnage combination of the primary and secondary anchor wire, but the optimization result is that the pull-anchor coefficient is too big; then the body form of the pier is optimized; finally the anchor wire perpetuation tensioning tonnage is optimized by using ANSYS optimization design module based on parametric FEM, the optimization result is acceptable and the Pull-anchor Coefficient is lowered down.
7.Abstract: For high arch dams in valleys with the characteristics of high water head,large discharge and large power,the problems of energy dissipation and scour prevention are serious.Based on scientific studies,new comprehensive measures are proposed,including dispersion of discharge to waken wallop of the current,and reinforcement of riverbed to enhance the erosion-resistance.The measures can be used to solve the problem of energy dissipation properly.A typical layout scheme has been proposed in which slotted bucket with diversion teeth,double deck with pores,and cushion pool are considered practice has proved that the scheme is reliable and the effect of energy dissipation is obvious.
