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42 results about "Permanent Mount" patented technology

Wide cable-stayed pier beam consolidation construction method and system in pier top rotation construction

The invention provides a wide cable-stayed pier beam consolidation construction method in pier top rotation construction. The method includes the steps: 1) arranging spherical hinges at the top of gate-type piers to perform cable-stayed bridge rotation construction; 2) arranging stiffening ribs and jack stress points on two sides of a cable-stayed bridge beam corresponding to columns of the gate-type piers; 3) arranging jacks at the tops of the gate-type piers after cable-stayed bridge rotations are in place, and lifting two sides of the cable-stayed bridge beam; 4) placing permanent supporting piers on two sides of the jacks when the lifting force of the jacks reaches a designed value, and closely ejecting the cable-stayed bridge beam; 5) welding profile steel connectors, releasing and disassembling the jacks, and performing filling with micro-expansion concrete to reach permanent mounting. According to the method, front upper structural loads and rear upper structural loads of the rotations are reliably transferred, prestress is set on a gate-type pier beam, the stress of the gate-type piers meets requirements in rotation construction, normal transportation under a main pier is achieved, internal force of an upper structural cable-stayed bridge beam is adjusted by lifting the jacks after rotation construction, consolidation of the beam is achieved, and structure stress is more reasonable.
Owner:CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP
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