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A kind of in-situ construction method of stepped concrete

A construction method and concrete technology, which are applied in the fields of stepped structure, formwork/formwork/work frame, and on-site preparation of building components, can solve problems such as the inability to guarantee the inherent and appearance quality of cast-in-place stepped concrete at the same time.

Active Publication Date: 2021-04-27
卜群惠
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

To sum up, the existing conventional construction methods cannot guarantee the intrinsic and appearance quality of cast-in-place stepped concrete at the same time

Method used

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  • A kind of in-situ construction method of stepped concrete
  • A kind of in-situ construction method of stepped concrete
  • A kind of in-situ construction method of stepped concrete

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Embodiment Construction

[0027] Such as Figure 5 As shown, the pouring mold assembly of stepped concrete of the present invention comprises an outer mold 2, an upper inner mold 3, a lower inner mold 1, a movable die 6, a prefabricated concrete spacer 4, a pull screw 5 and a weight block 8, and the prefabricated The concrete pad 4 is placed under the upper inner formwork 3, and the lower inner formwork 1 and the outer formwork 2, the upper inner formwork 3 and the outer formwork 2 are tensioned and fixed with the tension screw 5 respectively. The prefabricated concrete block 4 adopts small prefabricated concrete rods, and the distance between the small prefabricated concrete rods is 1-1.5m, and the pull screw 5 is covered with a hard plastic pipe and passes through the gap between the small prefabricated concrete rods. please also Figure 8 with Figure 9 As shown, after the lower concrete is put into the warehouse, vibrated and compacted, and the exposed surface is smoothed, the movable die 6 is co...

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Abstract

The invention discloses a step-shaped concrete casting mold assembly and a cast-in-situ construction method, comprising: cleaning the base surface → supporting the side form → pouring the concrete at the lower part of the step → laying a movable die and clamping → pouring the upper part of the step Concrete→Remove the movable die→Tighten the surface of the lower part of the steps→Tighten the surface of the upper part→Conservation→Remove the side formwork and continue the maintenance. Since the present invention adopts the dynamic operation process of "installation later and removal first" of the movable die and the form support method that the 45° contact surface between the movable die and the upper inner mold can be combined and separated, the inner side of the cast-in-place concrete step is completely solved. There is a problem with stencil imprints on the surface. The overall structure of the steps casted by the present invention is complete, without cold joints, and the internal quality meets the design standards; the surface has no template marks, no cracks, no bubbles or spots, pockmarks, etc., and the appearance quality meets the requirements of the specifications, and can be applied to various The cast-in-place stepped concrete project has significant practical significance and good social benefits.

Description

technical field [0001] The invention relates to the technical field of concrete construction, in particular to a mold assembly used in the construction process of cast-in-situ stepped concrete without whitewashing and veneering and a construction method of stepped concrete. Background technique [0002] The cast-in-place stepped concrete is used in the wave wall of the seawall project in the Hangjiahu area, the steps of the upper and lower dikes, the flood wall of the embankment project, the wing wall topping of the gate station project, the wharf steps of the port and channel project, the approach bridge sill base of the bridge project, The top of the pier wall and the platform cap of the municipal engineering, the top of the secondary retaining wall of the river revetment project and the river port are widely used, and the cross-sectional shape of the structure is mostly "L" shape, such as figure 1 shown. Due to the large length of engineering lines used, most of the step...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04G13/06E04F11/02E04F11/116E04C5/20
CPCE04C5/20E04F11/02E04F11/116E04F2011/0214E04G13/062
Inventor 卜群惠徐志坚卜俊松
Owner 卜群惠
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