The Experimental Studies On The Antiseismic Behavior Of Short-Shear Wall Which Adopts Prestressed Concrete And Shape Steel Concrete

In view of the shortcomings of short-shear wall, this article unifies the pre-stressed technology and the reinforced concrete, uses in short-shear wall andproposes one kind of new structure------short-shear wall which adoptsprestressed concrete and shapes steel concrete structure. The prestressed force exerts for the level, causes the shearing force wall's the edge member to include the vertical pressure and the section sidewise restraint function temporary lodging in bidirectional even three approaches the compression stress condition, enhances the supporting capacity and the ductility performance of the short-shear wall, to enhance its seismic performance. It opens a broader space for short-shear wall structure's application. This article plans through the experiment conducts the research and the discussion to this kind of new short extremity shearing force wall structure supporting capacity as well as the earthquake resistance performance. It has carried out the following job in several aspects:Design the examination by having made the three short limbs of "one" form reinforcing bar concrete short-shear wall, the first one of them is that the average reinforcing bar concrete owes a limb short-shear wall examination, the second is that the prestressing force reinforcing bar concrete owes a limb short-shear wall examination. By the fact that the quasi-static tests, the load displacement stagnates time of curve having measured, having calculated the ductility factor,working index,equivalent viscous damping coefficient,bear the weight of a force reducing a modulus and loop line rigidity. It has analysed the force destroying a form, bearing the weight of and anti-seismic function effect that the prestressing force owes a limb shearing force wall to reinforcing bar concrete. The experiment and analysis indicates, comparing with short average reinforcing bar concrete limb shearing force wall, that the short prestressing force reinforcmg bar concrete limb short-shear wall existence because of the prestressing force, restraines development of rift, destroyes a form improving to some extent, borns the weight of the force and stiffness rise consume the energy function obviously, improving to some extent, but tensility change is not obviously. So, the short prestressed force reinforcing bar concrete short-shear wall has a higher supporting capacity and much better higher overall service behaviour, the altitude and applicability suitable for use have provided one kind of effective approach to the maximum improving short limb shearing force wall structure. Finally, the main body of this paper, according to the problem reported in the experiment, put forward some proposals to the next step research work.