Design and practice of hinge first and then rigid supports for a connected truss
A project is composed of two towers A and B and an air connected body.The connected body has a span of about 60m and a width of 25m.In order to reduce the horizontal force transmitted from the chord of the connected truss to the core tube under the dead load condition,so that the axial force of the chord under the dead load is not transmitted to the core tube,and at the same time reduce the joint bending moment transmitted from the truss to the supporting column,the support joint of'hinge first and then rigid'was designed.The reduction effect of the bearing on the axial force transmitted from the truss chord to the core tube,the displacement of the bearing joint in the construction stage,and the setting of the post-pouring belt near the bearing were analyzed,and the finite element analysis of the bearing joint was carried out.The results show that the construction measures of'hinge first and then rigid'can achieve the expected effect well.
connected trusshigh-rise buildingconstruction measuredesign of joint
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