3D3S与STS在门式钢架结构设计中的应用比较

AbstractPortal frame and light steel structure have become the main form of lightweightbuilding structure nowadays.It can effectively use the component materials,smallsize,light weight,can carry out mass production in the factory,to ensure the quality,in site installation and has convenient connection,short construction period and canbe recycled,so it is widely used in industrial buildings and public buildings,itsadvantages and economic benefits it is self-evident.Because of some specialrequirements,engineering design becomes more complicated in the application oflight-weight steel structure with gabled frames.For example,the industrial workshop,because of the process layout or logistics delivery requirements,need to have an openspace to operate,and some columns are pumping,so a column type portal frame isformed.The design method of double slope portal frame has not been specified in thecode.Therefore,it is of practical value to study the design method of double slopeportal frame.In this paper,the present situation and characteristics of portal frame,light housesteel structure,development at home and abroad,and portal frame are introducedBasic design theories and specifications.On the basis of the research theory,thelight-weight steel structure of portal frame is summarizedPlant design methods and procedures.Combined with the engineering example,according to the general situation of the project,the reasonable design scheme isdetermined.The structural model is established,and the parameters of the structure areanalyzed to analyze the internal force.For double slope door type rigid frameThe difficult point of the project lies in the influence of the change of the stiffness atthe double slope on the whole structure.The double sloping portal frame has beendesigned The supporting role in the process of taking place joist was pumped incolumn,the plane model is used to model and calculate it,Jane As an elastic support,the stiffness of the elastic support must be taken into account in the process ofbuilding the model.And adopt Longitudinal horizontal bracing and inter columnsupport to strengthen the overall stiffness.Finally,the calculation of the project portal