Discussion On Design Of The Transfer Beam Torsion

Along with our country economy of continuously develop, the style of building continuously renews, building function demand continuously satisfy people's work and life demand, so correspond of the structure prop up system and then emerge with the tide of the times.Familiar is an upper part currently for small open a residence, the stalk line arrange and the wall body be more intensive, lower part in order to greatly open market or amusement place of , the pillar net is big and the wall body is little. Therefore, building function and structure of reasonable decoration creation antinomy, need in the building of pillar net or structure form change constitution conversion layer, call a structure conversion layer to solve this antinomy.The form of conversion layer is varied, among them, the beam type conversion layer's application is most extensive, it design and construction simple, be subjected to dint definitely, generally and extensively applied shear the dint wall structure system at the bottom space in.The beam type converts structure in, part conversion beam because the lotus carry of lack of impartiality etc.'s reason to produce to certainly twist Ju, this for conversion the beam structure be very disadvantageous.This text passes a solid example analysis and lack of impartiality a lotus to carry to make to produced inside main beam on the beam one twist of fixed amount Ju, but twist the size of Ju to have something to do with building plank thickness, main beam cutting the size of noodles.When the conversion beam cuts noodles size must but building plank the thickness becomes big gradually, the main beam twists Ju to immediately let up;When building plank the plank be thick must, twist Ju to cut become big of noodles size but gradual aggrandizement along with the conversion beam inside beam.It is thus clear that building plank the variety of the thickness to convert inside beam of twist Ju influence very big.Therefore, in the process of converting the design of beam in, the influence which understands the building knothole different thickness to twist Ju inside main beam is very big, along with the increment of the building plank thickness, the common function of building plank and main beam is also more big and twist Ju inside main beam more small;And the main beam cut noodles more small, building knothole the beneficial function be more big, can pass to choose building plank of use the accommodation thickness, make whole to the beam and the building knothole be subjected to dint, and reduce to twist the Ju exertive huge function inside beam.Suggest in the actual engineering design, should pass a reasonable structure decoration, let up conversion turn round of beam an effect, improve the structure anti- earthquake ability.When function because of construct of the demand can't completely carry on structure to arrange according to the request, should adopt measure to let up beam in of twist Ju, let up a Gou piece piece noodles size and go together with amount of Jin thus.