Experimental and Statistical Analysis on Load Carrying Capacity of Metal Plate with Orthogonal Oriented Teeth in Light Wood Frame Construction

Abstract:

This paper presents an experimental study on mechanical properties of a new type of metal plate,in which its teeth are orthogonal oriented.Experiment was designed to investigate the loaddeformation relationship,ultimate lateral capacity of teeth and ultimate lateral slip capacity of teeth for this type of metal plate connected joints.40 specimens were tested under tension loading paralleltograin.Experimental data of loaddeformation were fitted to Foschi model with the leastsquare method,the goodness of fit was verified by classic statistical method,and the Foschi model being adopted to represent the loaddeformation relationship of woodbased connections had been widely accepted and extensively verified by experimental study.Then the probability distribution model for load carrying capacity was determined by goodness of fit test.Based on reliability theory,characteristic values for ultimate lateral resistance and ultimate lateral slip resistance were determined on the basis of the probability distribution model.Analytical results indicate that this kind of joints exhibit high ductility and low variability.