SEGMENTAL PRECAST COMPOSITE-MATERIAL COMPOSITE-SLAB COMPOSITE BEAM AND CONSTRUCTION METHOD THEREOF
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United States of America Patent
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Oct 17, 2024
app pub date -
Apr 11, 2023
filing date -
Apr 11, 2023
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Abstract
A segmental precast composite-material composite-slab composite beam and a construction method thereof are provided, relating to the technical field of bridge design and construction. The segmental precast composite-material composite-slab composite beam mainly includes a segmental precast orthotropic composite top slab, a web, a bottom slab, and a wet joint between segments. The orthotropic composite top slab is composed of an orthotropic slab and an ultra-high-performance concrete layer (UHPC), and the interface connection of the orthotropic slab and the UHPC structural layer is achieved by a shear key. The UHPC structural layer is superposed with the orthotropic slab in segments in a precast plant to form a composite-slab composite beam segment to be entirely transported, hoisted and assembled, and the connection of the UHPC structural layers between the segments is achieved by casting a transverse wet joint in place.
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