Anti-leakage construction method suitable for horizontal expansion joint

A construction method and horizontal expansion and contraction technology, applied in building components, building insulation materials, buildings, etc., can solve the problems of increased material loss, manual construction period, difficult to fit closely with embedded angle steel, and narrow operating surface of expansion joints. The effect of avoiding leakage repair construction operations, reducing leakage repair costs, and simplifying the construction process

Inactive Publication Date: 2021-03-26
中建五局第三建设有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, the pre-embedded angle steel has high requirements for positioning accuracy and welding quality. Once the positioning accuracy is not enough, it will be difficult to fit the V-shaped steel plate closely with the pre-embedded angle steel when installing the V-shaped steel plate later. The welding quality is not high, and the edge is prone to water leakage.
Expansion joint leakage is difficult to maintain. After the main body is capped, the operation surface of the expansion joint is narrow and concrete transportation is difficult, which increases material loss, labor, and construction period, thereby greatly increasing construction costs.
The traditional expansion joint construction method has a slow construction progress and a high risk of leakage

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Embodiment 1: It is suitable for the case where the height of the main structure on both sides of the expansion joint is equal,

[0031] Such as figure 1 As shown, first, when pouring the floor structural beam formwork, a concrete structure reverse sill 3 is poured at a distance of 130mm from the floor main structure 2 to the edge of the expansion joint. The length of the concrete structure reverse sill 3 is the same as the length of the expansion joint, and the width of the concrete structure 100mm, height 80mm, the top surface of the concrete structure anti-sill 3 is polished. After the main structure is capped, clean the base layer of the structural surface at the expansion joints, and paint the two-component polysulfide sealant 5 with a width of 50mm on the floor structural surface on both sides of the expansion joint twice, and the two-component polysulfide sealant 5 Thickness 1mm~1.5mm; Anchor the V-shaped galvanized iron plate 1 with a horizontal edge of 1.5mm o...

Embodiment 2

[0032] Embodiment 2: Applicable to the case where there is a difference in height between the main structures on both sides of the expansion joint,

[0033] Such as figure 2 As shown, in the construction of the expansion joint, first, when the floor structure beam slab is closed and poured, on the floor structure on the lower side, a concrete structure anti-sill 3 is poured at a distance of 130mm from the edge of the expansion joint, and the concrete structure The length of the anti-sill 3 is the same as the length of the expansion joint, the width of the anti-sill 3 of the concrete structure is 100mm, and the height is 80mm, and the top surface of the anti-sill 3 of the concrete structure is polished. After the main structure is capped, clean the base layer of the structural surface at the expansion joints, and apply a 50mm wide two-component polysulfide sealant twice on the edge of the floor structure on the lower side of the structure. On the wall, brush two-component pol...

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Abstract

Provided is an anti-leakage construction method suitable for a horizontal expansion joint. The method includes the steps that a, when a top plate structure is poured, a concrete structure reverse ridge is arranged at the position away from the edge of an expansion joint structure; b, the edge of the expansion joint structure is coated with a two-component polysulfide sealant, and V-shaped elementswith horizontal edges at the two sides are installed on the edge of the expansion joint structure and sealed through the sealant; c, the two edges of the V-shaped elements are fixed to the structuraledges of the two sides of the expansion joint through expansion bolts correspondingly; d, the V-shaped elements of the expansion joint is filled with waterproof factice in an embedded mode; e, a first waterproof coiled material is laid on the waterproof factice, and the two sides of the coiled material completely wrap the concrete structure reverse ridge; f, the first waterproof coiled material is filled with the waterproof factice in an embedded mode; g, a second waterproof coiled material is paved on the waterproof factice; and h, a fine aggregate concrete rigid protection layer is manufactured on the second waterproof coiled material. According to the anti-leakage construction method suitable for the horizontal expansion joint, the construction process is simplified, the construction benefit is increased, the construction quality is guaranteed, and the construction efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of building construction, in particular to an anti-leakage construction method suitable for horizontal expansion joints. Background technique [0002] With the rapid development of the economy and the rapid development of urbanization, the construction of large buildings has ushered in a golden period of development. Expansion joints refer to when the plane size of the building is large, in order to prevent the internal force of the building components due to climate temperature changes (thermal expansion, cold contraction) and concrete shrinkage to cause cracks or damage to the structure, in order to release this A structural joint arranged at an appropriate position along the construction joint direction of a building or structure due to internal forces. The expansion joint is to divide the building components above the foundation such as walls, floors, roofs, etc. into two independent parts, so that the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B1/68
CPCE04B1/68E04B1/6801E04B1/6806
Inventor 吴掌平邱文平冉昊陈黔传云强
Owner 中建五局第三建设有限公司
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