STUDY ON THE MECHANICAL PERFORMANCE OF STEEL-CONCRETE COMPOSITE BEAMS DURING THE SPANNING HOISTING CONSTRUCTION
During the construction process of Xinpinghe Bridge,the stress state of the steel main beam of the bridge is monitored to ensure the safe.The spatial structure mechanics model of each stage of bridge construction is estab-lished,the stress and deformation of the steel girder under various construction conditions are analyzed.The results indicate that the stress and deformation of the steel main beam during the hoisting construction by the bridge erec-tion machine meet the requirements.The measured value is in good agreement with the calculated value from the fi-nite element method,which proves that the construction technology is feasible and reliability.
steel concrete composite beamtransportation on beambridge erection machinewhole-span hoisting
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