Structure Calculation Of Trunk-like Transfer Floor For High-rise Building

In recent years, the high-rise building is developed rapidly and the structure with compositive use of complex body and various functions is developed. From the function needing of the building, the top needs small axis dimension which has to be assigned, the next function part hopes that there is as big as possible free space, it is heavy for network to take post, for satisfying building the requests of function, the structure must be by fixing up contrary to routine way, in order to realize that this kind fixes up, must set up a special floor between the underpart in structure forms are different, make its bear top the internal forces of structure and transmit and give underpart structure to play structure change the floors of function reliable its, called and change a layer of structure.Bring case shape to change layers of the high-rise building adopt three-dimensional space analyses procedure carry on whole structure analyses by internal force, participate in whole to analyses behind being dispersed roof beam shape case. The shape roof beam dispersed method of the case has two kinds of models of a wallboard of models and roof beam mainly, in whole after calculating, change one carry on some stress analyses to case shape, this literary grace spend limited pieces of laws, separately at plane stress issue and sheet metal crooked problem come and consider rigidity matrix unit.Limited laws are a branch of the finite element, limited laws are a special form of the finite element law, a different one are that standard limited unit laws are the displacement function of adopting the multinomial along the all directions, limited laws only needs to adopt the simple multinomial along some directions, at regular geometry forms cross-section have and change along one a piece of directions and terms of border simple structure have heavy superiority relatively than commonly used finite element, Network divide relatively sparse by one, knots of line( interface) far and little figure than node figure, so structure count by rigidity matrix steps.The theory analyses of Finite Strip Method are putting up in this paper. Theprogram of Finite Strip Method is worked out by FORTRAN and the local internal force of Trunk-like section girder and crooked Trunk-like section girder are carried on in this paper, and the corresponding internal force is offered. Through comparing with the shape roof beam of case the crooked case shape roof beam in the straight case shape cross-section roof beam approximately, have verified the rationality and validity of the procedure, for solving case offer one a kind of reliable methods is and not for solving difficult problem run into offer the reference basis in theory practice project by shape cross-section roof beam finally.