Study On The Stability Behavior Of Cold-formed Thin-walled Steel Flexural Members With V-shaped Stiffened And Oppening Web

Cold-formed thin-walled steel buckling mode has been the factors influencing the stability and bearing capacity of the key components,with the rapid development of cold bending steel,cold bending steel component before higher strength,thickness is thinner and cross section forms more complex,specimen are more likely to happen buckling failure.In order to prevent the buckling failure,usually for components in practical engineering setting stiffening,currently on the bearing capacity and stability of the v-shaped stiffening components of study is less,so research how to affect the stability and bearing capacity of the component is very necessary.In the practical application of cold-formed thin-wall steel structure,piping,electrical,and other living facilities for the convenience of life through in the steel members,usually to open holes on the artifacts.Hole can reduce the height of the building,but easy to produce stress concentration around the hole component stiffness decreases,artifacts are more likely to happen buckling destruction and loss of bearing capacity,this test will be the opening of the stability and bearing capacity of cold-formed thin-wall steel components are studied.In order to study the web openings with v-shaped stiffening of cold-formed thin-walled steel C section flexural member under the pure bending and pure bending state of stability and ultimate bearing capacity are studied.This experimental design for four kind of cross section in the form of components,each section in the form of a component is divided into pure bending and pure.bending group.Through experiment to study the different cross section forms of flexural member buckling mode,and analyze the buckling mode in pure bending and pure bending condition,the influence of the bearing capacity of bending members.