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Beam-slab structure for marine environment and building method thereof

A beam-slab structure and marine environment technology, applied in structural elements, building structures, floor slabs, etc., can solve the problems of easy corrosion of internal truss steel bars, inability to combine seawater and sea sand concrete, etc., to reduce material transportation costs and achieve good economy. Effective, high-durability performance

Pending Publication Date: 2018-12-28
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The reinforced truss composite slab, which is widely used in land engineering, can be extended to marine engineering, but its internal truss reinforcement is easy to corrode, and cannot be combined with seawater and sea sand concrete, and needs to be replaced

Method used

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  • Beam-slab structure for marine environment and building method thereof
  • Beam-slab structure for marine environment and building method thereof
  • Beam-slab structure for marine environment and building method thereof

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Embodiment Construction

[0037] The technical solution of the present invention will be further introduced below in combination with specific implementation methods and accompanying drawings.

[0038] This specific embodiment discloses a new type of beam-slab structure facing the marine environment, such as figure 1 and Figure 7 As shown, it includes a prefabricated UHPC formwork composite beam 2 and a prefabricated FRP truss composite slab 1; wherein, the prefabricated UHPC formwork composite beam 2 includes a U-shaped UHPC formwork 14, and the U-shaped UHPC formwork 14 is provided with a beam bottom Prestressed FRP tendons 18 in the formwork, U-shaped UHPC formwork 14 is provided with FRP stirrups 16 in the U-shaped area, FRP stirrups 16 are provided with FRP vertical bars 17, and the bottom of FRP stirrups 16 is provided with FRP Tensile longitudinal reinforcement 15; prefabricated FRP reinforcement truss laminated slab 1 includes FRP reinforcement truss, the bottom of the FRP reinforcement truss...

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Abstract

The invention discloses a beam-slab structure for marine environment. The beam-slab structure comprises a prefabricated UHPC(ultrahigh performance concrete) formwork composite beam and a prefabricatedFRP(fiber reinforce plastic) rebar truss composite slab ; the prefabricated UHPC formwork composite beam comprises an UHPC formwork, beam bottom formwork internal prestress FRP rebars are arranged inside the U-shaped UHPC formwork, FRP stirrups are arranged in a U-shaped area of the U-shaped UHPC formwork, FRP bearing rebars are arranged on the top of the FRP stirrups, and FRP tensile longitudinal rebars are arranged at the bottom of the FRP stirrups; the prefabricated FRP truss composite slab comprises an FRP rebar truss, slab bottom formwork internal prestress FRP rebars are arranged at thebottom of the FRP rebar truss, slab bottom transverse FRP rebars are arranged on the slab bottom formwork internal prestress FRP rebars, UHPC bottom plates are arranged on the slab bottom transverseRFP rebars, and prefabricated concrete ribbed slabs are arranged on the top of the DRP rebar truss. The invention further discloses a building method of the beam-slab structure. Local materials such as sea water and sand can be used for mixing sea water and sand concrete which can be used for hoisting construction immediately, and meanwhile, the beam-slab structure has excellent chloride ion erosion resistance capacity.

Description

technical field [0001] The invention relates to the technical field of marine engineering structures, in particular to a novel beam-slab structure facing the marine environment and a construction method thereof. Background technique [0002] For engineering construction in a marine environment far away from the mainland, it faces difficulties such as long-distance transportation of raw materials, shortage of fresh water resources, and lack of construction equipment. In addition, marine meteorological conditions are complex and changeable, and marine engineering construction also faces difficulties such as short construction windows and short construction periods. [0003] For the first problem, patent documents CN 204163069 U, CN106381833A and CN107447748A have all proposed to use seawater sea sand concrete combined with fiber reinforced composite material (FRP) to form FRP reinforced seawater sea sand concrete structure, which is applied to coastal and island reef construct...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B5/17E04C5/12
CPCE04B5/17E04C5/12
Inventor 董志强吴刚朱虹
Owner SOUTHEAST UNIV
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