Steel crown beam used for SMW construction method and assembly method thereof

An installation method and crown beam technology, which is applied in the direction of foundation structure engineering, construction, sheet pile walls, etc., can solve the problems of chiseling construction troubles, increase the construction period, waste of three materials, etc., achieve convenient transportation and installation, and enhance bending rigidity Effect

Pending Publication Date: 2018-07-31
SHANGHAI MUNICIPAL ENG DESIGN INST GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The construction of the crown beam requires concrete maintenance, which increases the construction period, and the chiseling construction is more troublesome, which will also cause waste of three materials

Method used

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  • Steel crown beam used for SMW construction method and assembly method thereof
  • Steel crown beam used for SMW construction method and assembly method thereof
  • Steel crown beam used for SMW construction method and assembly method thereof

Examples

Experimental program
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Effect test

Embodiment

[0025] A foundation pit design in Shanghai adopts SMW construction method piles as the enclosure structure, biaxial mixing piles adopt φ700@500, section steel adopts HM500*300*11*18, crown beams are set on the top of construction method piles, and the inner and outer steel plates use 600mm*16mm, The side plate of the rib socket is made of 400mm*500mm*12mm steel plate, the socket width is 224mm, the side plate of the rib socket is made of 400mm*500mm*12mm steel plate, the end plate is made of 176mm*12mm steel plate, the socket width is 200mm, and the pull bolt is 4* M24. The spacing between the socket and the socket is 1000mm, the horizontal spacing of the pull bolts is 150mm, and the vertical spacing is 300mm. After the outer steel plate and the inner steel plate have welded the reinforcing ribs, they are connected by tension bolts to form a crown beam with a width of 520mm and a height of 600mm.

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PUM

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Abstract

The invention relates to a steel crown beam used for an SMW construction method. The steel crown beam is characterized by comprising steel plates located on two sides of profile steel; the steel plates on the two sides are separately provided with a plurality of groups of reinforcement rib insertion openings and reinforcement rib bearing openings through welding; the reinforcement rib insertion openings are inserted into the corresponding reinforcement rib bearing openings to form reinforcement ribs; bolts holes are pre-formed in the reinforcement rib insertion openings and reinforcement rib bearing openings; the reinforcement rib insertion openings and reinforcement rib bearing openings are connected by split bolts, so that the steel plates on the two sides form an integral crown beam; and the steel plates on the two sides form constraining for the profile steel. According to the assembly method, reinforced concrete does not need to be poured, so that assembly of the crown beam is more convenient; and the steel plates on the two sides can be disassembled for recycling after use of the crown beam is finished.

Description

technical field [0001] The invention relates to the technical field of construction engineering, in particular to a steel crown beam used in the SMW construction method and an installation method thereof. Background technique [0002] The SMW construction method is also called the new cement-soil mixing pile wall. It uses special multi-axis mixing to drill and cut the soil on the spot. At the same time, the cement slurry is injected into the soil at the end of the drill bit. Overlapping construction is adopted in between, and H-shaped steel or other profiles are inserted into the mixing pile body before the cement-soil mixture is hardened to form a continuous, complete, and seamless underground continuous wall with certain strength and rigidity. The wall can be used as a soil retaining and water-stop structure for excavating foundation pits underground. Its main features are simple structure, good water-stop performance, short construction period, low cost, and little envir...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D5/18
CPCE02D5/18
Inventor 雷晗
Owner SHANGHAI MUNICIPAL ENG DESIGN INST GRP
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