Abstract：Research purposes: The main structure form of railway intermediate bridge type stations no-standing pillar canopy is usually be arched. Using Midas Gen software for structural static analysis of no-standing pillar canopy bracket，under various load conditions such as dead load with self-respect, roof live load，wind load，temperature and horizontal seismic action, we have come to the conclusion of the stress and deformation control factors of no-standing pillar canopy bracket under above conditions. Also proposed the points what should paid attention to in engineering designation.
Research conclusions ;(1)The main structure form of railway intermediate bridge type station’s no-standing pillar canopy usually be arched. It is made to bracket structure to bear bending moment and shear force in two directions. Due to the shear relative to the rod eccentric shaft, it withstands the torque and be regarded as typical bending shear and artifacts. ( 2 ) The temperature change will cause a certain degree of stress and strain of bracket structure，especially for steel pipe truss，which has larger stress and axial deformation.(3)The carrier structure of prestressed reinforced concrete girder is easy to cause concrete-cracking under the effect of temperature stress. Reasonable seam should be considered when designing the bracket structure, to avoid the stress and deformation accumulation.(4)The analysis and research of bracket steel truss structure in this paper, has a certain reference value in the structural design of the railway intermediate bridge style station.
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