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    • 4. 发明公开
    • RAILWAY ARCH LININGS AND MEZZANINE FLOORS
    • 铁道的拱形衬砌和夹层天花板
    • EP2231940A2
    • 2010-09-29
    • EP08835682.9
    • 2008-10-03
    • Finch, Steven Caffall
    • FINCH, Steven Caffall
    • E04B1/32E04F13/08E04B9/06E21D11/18
    • E04B1/3205E04B9/061E04B9/064E04B9/065E04C2003/0473
    • A system for lining arched structures, particularly railway arches (1 ), provides a plurality of elongate, flexible frame elements (70), each protected by a flexible shield (149) and engaged frictionally against the curved soffit (5) by hoop stress applied at either end, preferably by a pair of installation tools (300) mounted on stanchions (40) Each tool includes a pivoting ratchet which allows the flexible frame element (70) to be formed into an arched shape on the ground and then raised into a vertical plane prior to installation Each frame element (70) may comprise a unitary 'top-hat' profile with deformable hinges, each hinge having an associated deformation structure which distributes bending forces evenly during installation The frame elements (70) are fixed to the stanchions (40) to support them at either end in their installed position, providing a self-supporting, arched framework which relies upon the masonry soffit (5) for its shape and stability Alternatively, each frame element may comprise joints which are remotely locked in the installed position, allowing the frame element to be decoupled from the soffit The framework is installed from ground level, and the stanchions support a temporary mezzanine floor made from modular interlocking panels.