Dry type connection system of a prefabricated type wood-concrete composite structure
A combined structure and prefabricated assembly technology, which is applied in the direction of erecting/assembling bridges, building components, building structures, etc., can solve the problems of low construction efficiency and achieve the effects of improving appearance, reducing impact, and good fire resistance
Pending Publication Date: 2020-02-11
NANJING UNIV OF TECH
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The invention discloses a dry type connection system of a prefabricated type wood-concrete composite structure. The dry type connection system includes wooden beams, concrete slabs and dry type shearconnection pieces. Each dry type shear connection piece includes an embedded steel plate and assembling screws. In-plate steel bars of the concrete slabs pass through pre-opened holes of the embeddedsteel plates, the embedded steel plates are positioned when concrete is poured, and strengthening and anchoring are carried out; the wooden beams are arranged between the two embedded steel plates, grooves with the depth equal to the thickness of the embedded steel plates are formed in the positions, in contact with the steel plates, of the wooden beams, exposed parts of the embedded steel platesare inserted into the grooves of the wooden beams during field assembly, the screws are used for connecting the concrete slabs where the steel plates are embedded and the wooden beams, and assemblingof the wood-concrete composite structure is realized. By means of the dry type connection system, the wooden beams and the concrete slabs are prefabricated in a plant and spliced on a construction site, the on-site form erecting processes are reduced, and the concrete curing time is shortened.
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