MIDAS如何处理铰接(国外英文资料).doc

MIDAS如何处理铰接(国外英文资料) 1, how to use the shell elements based on variable cross section continuous beam (continuous rigid frame) model? How to enter the prestressed steel beam model? The use of a continuous rigid plate element (variable cross-section method) can be simply described as follows: 1) first establishes the parabola (variable section flange); 2) using a unit expansion function by linear expansion into the plate unit, extended selection of projection, projection to the top flange. ; 3) establish a straight beam at the top flange (extended transition with), and then to the middle of the transverse and overhanging edge extended into plate element; 4) using a unit mirror function horizontal mirror image of the other half; 5) in order to observe the convenient use of modifying the element coordinate axis parameter function in option unit in unit command, the plate unit unified coordinate axis. In the method of prestressed steel beam plate element or entity block unit, the designers generally use method and virtual truss element, namely the truss element simulation of steel beam, and then to the truss element to a certain temperature, so as to achieve the effect of eliminating stress and. The magnitude of temperature drop to consider the prestress loss after tension. This method can simulate prestress loss of steel beam along the length direction, but because many software can not provide on board unit or block unit can be considered six kinds of prestressing loss of steel beam, so many designers commonly employed in this simplified analysis method. MIDAS is currently being developed in plate unit and block unit plus you can consider six prestressing loss of steel beam module, to meet user requirements analysis and design. 2, if the beam is hinged through the wing plate, how should Midas/Civil modeling simulation between the girder hinge? The main girder is connected with a certain distance between the transverse beam and the bending moment is virtual, both ends o