Pre-burying arrangement mode and method of downpipes simultaneously used as demolishing blast holes in building peripheral columns

An arrangement method and downspout technology, applied in the direction of roof drainage, etc., can solve the problems of easy weathering and corrosion of fixed blocks, short service life, easy freezing, etc., achieve significant economic and social benefits, improve the overall aesthetic effect, and avoid noise and dust pollution. Effect

Active Publication Date: 2019-05-03
HUBEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1. The downpipe is arranged on the side of the outer wall, which is easily weathered by the wind and the sun, and has a short service life; the temperature is low in winter and it is easy to freeze;
[0005] 2. The connecting parts of the downpipe are easy to rust; the fixed block at the end of the connecting part is easy to weather and corrode; it is not easy to maintain when it is arranged on the outer wall
[0006] 3. The arrangement of downpipes on the side of the outer wall may bring convenience to criminals, and thieves can climb up from the water pipes, which poses a great security risk
[0007] 4. The arrangement of downpipes on the side of the outer wall affects the overall appearance

Method used

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  • Pre-burying arrangement mode and method of downpipes simultaneously used as demolishing blast holes in building peripheral columns
  • Pre-burying arrangement mode and method of downpipes simultaneously used as demolishing blast holes in building peripheral columns
  • Pre-burying arrangement mode and method of downpipes simultaneously used as demolishing blast holes in building peripheral columns

Examples

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Effect test

Embodiment 1

[0045] A three-story building with a height of 9.8m and a floor height of 3m has a flat roof 17, a parapet 9 on the roof, and a gutter 7 on the roof. The size of the reinforced concrete columns around the building is 0.4m×0.4m×9m. The specific steps for the pre-embedded layout of the downspout that doubles as the demolition of the blast hole in the surrounding columns of the building are as follows:

[0046]1) Erection of steel cages for the surrounding columns of the first floor of the building, and erect the first section of downspout pipe 4 with a diameter of 40 mm in the steel cage frame, the lower end of the downpipe is connected to a 135° elbow 6, and the height of the downpipe body is tied with thin iron wires 15 at intervals of 1 m (See Figure 8 ), and be fixed on four column longitudinal bars 14 or column stirrups 13 after tightening to form a cross. Then support the formwork so that the lower end of the 135° elbow protrudes out of the formwork; the upper end of the...

Embodiment 2

[0051] Embodiment 2, certain three storey height 9.8m, the building of storey height 3m, slope roof 12, be provided with gutter 16 outside the eaves, the size of reinforced concrete column around the building is 0.4m * 0.4m * 9m.

[0052] 1) Erect a steel cage for the surrounding columns of the building on the first floor, and erect the first section of downpipe 4 with a diameter of 40 mm in the steel cage frame. The lower end of the downpipe is connected to a 135° elbow 6. Bind iron wires and fix them on the four longitudinal columns 14 or column stirrups 13 after tightening to form a cross; then support the formwork so that the lower end of the 135° elbow protrudes out of the formwork; the upper end of the downpipe is higher than the surrounding column formwork of the building The top is 20-30cm, and the upper opening is sealed with a plastic bag;

[0053] 2) Pouring concrete to the top of the peripheral column formwork of the first-floor building;

[0054] 3) Erect the rei...

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Abstract

The invention relates to a pre-burying arrangement mode and method of downpipes simultaneously used as demolishing blast holes in building peripheral columns. The downpipes of a plane roof building ora pitched roof building are pre-buried in the peripheral columns, the middle sections of the downpipes are parallel to long axis of the building peripheral columns, the lower ends of the downpipes extend out of the column tops or the column outer side surfaces through pipes connected to bent heads, the upper ends of the downpipes are connected with floor drains arranged at the gutter bottoms or the eaves gutter bottoms through hoppers, and the lower ends of the downpipes adopt the 135-degree bent heads to be connected with pipelines extending out of the column outer side surfaces. During construction, steel reinforcement cages of building peripheral columns of a first floor are arranged in an erecting mode, a first section of downpipes are erected in the steel reinforcement cages, the lower ends of the downpipes are exposed, formworks are supported, and concrete is poured; and the above construction is repeated until steel reinforcement cages of building peripheral columns of a top floor are arranged in an erecting mode, the downpipes are erected, and the top ends of the downpipes are connected with floor drains arranged at the roof. According to the pre-burying arrangement mode and method of the downpipes simultaneously used as the demolishing blast holes in the building peripheral columns, the appearance of the building is improved, the use time of the downpipes is prolonged, and later service and maintenance are spared; and the downpipes can be used as the demolishing blast holes of the building peripheral columns.

Description

technical field [0001] The invention relates to the technical field of water drainage system and the field of blasting engineering, in particular to a way and method for the pre-embedded arrangement of downpipes that also serve as demolition blastholes in the peripheral columns of buildings Background technique [0002] In the blasting demolition of reinforced concrete columns, there is a technology of utilizing pre-embedded PVC pipes to remove blastholes, such as: CN105091682B discloses a demolition blasting method for axially embedded blastholes of reinforced concrete columns. This technology can avoid drilling, reduce the cost of blasting and demolition, has little impact on the environment, and has broad application prospects. This technology only considers the pre-buried hole as the blasting hole, and does not introduce the construction of the pre-buried pipe in detail, let alone consider the multi-purpose of the pre-buried pipe, such as serving as a rainwater downpipe,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04D13/08
Inventor 叶建军陈飞肖建庄张晋舒大强程大春吴巍陈得良尹仲
Owner HUBEI UNIV OF TECH
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