A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
PREFLEXION GIRDER FOR SEMI-INTEGRAL ABUTMENT BRIDGE AND SEMI-INTEGRAL ABUTMENT BRIDGE CONSTRUCTION METHOD THEREWITH
The present invention relates to a preflexion (PF) steel composite beam manufactured for a semi-integral bridge, which is easily utilized for the semi-integral bridge by forming cross beams for an end of an abutment on both ends of the semi-integral bridge, and a method to construct the semi-integral bridge using the same. The PF steel composite beam for a bridge allows a PF load to efficiently be surcharged by the weight of the end blocks for a semi-integral bridge by forming the end blocks on both ends of a steel beam while forming a casing concrete; and effectively copes with vibration, noise, and crack control of the casing concrete by introducing compression prestress to the end blocks and the casing concrete through a tendon. The end blocks are a cantilever type from a spot (A) of the steel beam to have an advantageous structure to surcharge the weight of the end blocks to the PF load, and obtains efficiency of introduction of the PF load using end hydraulic jacks. The PF steel composite beam comprises: the steel beam having the casing concrete formed to surround an abdomen part and a lower flange; and the end blocks integrated with the casing concrete (120) while surrounding both ends of the steel beam.
PREFLEXION GIRDER FOR SEMI-INTEGRAL ABUTMENT BRIDGE AND SEMI-INTEGRAL ABUTMENT BRIDGE CONSTRUCTION METHOD THEREWITH
The present invention relates to a preflexion (PF) steel composite beam manufactured for a semi-integral bridge, which is easily utilized for the semi-integral bridge by forming cross beams for an end of an abutment on both ends of the semi-integral bridge, and a method to construct the semi-integral bridge using the same. The PF steel composite beam for a bridge allows a PF load to efficiently be surcharged by the weight of the end blocks for a semi-integral bridge by forming the end blocks on both ends of a steel beam while forming a casing concrete; and effectively copes with vibration, noise, and crack control of the casing concrete by introducing compression prestress to the end blocks and the casing concrete through a tendon. The end blocks are a cantilever type from a spot (A) of the steel beam to have an advantageous structure to surcharge the weight of the end blocks to the PF load, and obtains efficiency of introduction of the PF load using end hydraulic jacks. The PF steel composite beam comprises: the steel beam having the casing concrete formed to surround an abdomen part and a lower flange; and the end blocks integrated with the casing concrete (120) while surrounding both ends of the steel beam.
PREFLEXION GIRDER FOR SEMI-INTEGRAL ABUTMENT BRIDGE AND SEMI-INTEGRAL ABUTMENT BRIDGE CONSTRUCTION METHOD THEREWITH
HA MI JUNG (author) / KIM EUN JUNG (author) / KO EUN YEOP (author)
2015-08-26
Patent
Electronic Resource
Korean
IPC:
E01D
BRIDGES
,
Brücken
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