Both The Mechanical Performance Of Slab-column System Under Uniform Load And Prestressing Layout

It can calculate the deflection function of single-span slab-column system according to the boundary and basic equation of slab in this paper. The formula can be used to analyze the slab's elastic stages to discuss its internal forces and find that main moments which curve equal to zero arranges in rhombus.It doesn't find the deflection function's exect results because the deflect function's boundary is very complex in cotinuoual slab and deflection according to their characteristic of arrangement. It apply a kind of method to design which arrange prestressed steel bars in oblique line on the basis of principle about the most straightest path of force-transfer.It used the software of FEM to calculate and analyze the models which arrage steel bars in different directions.It observes the steel bars how to effect the slab's antic-deflection.It used the principle of virtual work and the theory of yieldingline,assumes single-slab and continual slab's yielding model to anylize its limitation and obtain the ultimate load. At last, models will be made and tested, that author deals with the data,analyze them and find the communication of load,deflection and internal forces,the result of model experiment can improve if the theory is correct.