CN107119727A - Additional bar fixes the concrete structure and its continuous placing construction method of waterstop - Google Patents

Abstract

The invention relates to the construction technology of continuous concrete pouring, in particular to the technology of adding steel bars to fix the water stop to realize the continuous concrete pouring construction. Provided is a concrete structure with additional reinforcing bars to fix the waterstop and its continuous pouring construction method, which includes the concrete structure with additional reinforcing bars to fix the waterstop including adding two pairs of steel bar frames, two pairs of mortar pads and a waterstop. The two pairs of additional reinforcement frames are respectively welded to the top and bottom reinforcement bars parallel to the direction of the waterstop, and the two pairs of mortar pads are bound to the additional reinforcement frame respectively, the waterstop is fixed in the upper and lower directions, and the joint filling asphalt planks are fixed in the left and right directions of the additional reinforcement frame. The invention can shorten the construction period of concrete pouring, reduce the amount of formwork, speed up the construction progress, save costs and improve economic benefits.

Description

Concrete Structure with Additional Reinforcement Fixing Waterstop and Its Continuous Pour Construction Method

technical field

The invention relates to the construction technology of continuous concrete pouring, in particular to the technology of adding steel bars to fix the water stop to realize the continuous concrete pouring construction.

Background technique

In the architectural design of general large projects, due to the large amount of concrete that needs to be poured, continuous pouring cannot be performed, and due to the deformation of the foundation, or the thermal expansion and contraction of concrete components caused by temperature changes, it is necessary to leave construction joints. , settlement joints, and deformation joints, water stop belts must be installed at these joints to prevent water leakage.

In the existing concrete construction technology, the construction is usually carried out by means of jumping warehouse pouring. Although this construction technology solves the problems left over in the construction process such as construction joints, settlement joints, deformation joints, etc., it also has the following problems:

1. The construction progress is slow. When the warehouse jumping method is used for construction, it is necessary to bind the steel bars of the warehouse, install the water stop belt and the support formwork separately. After the pouring of a certain warehouse is completed, the formwork needs to be removed after the curing period, and the steel bars are bound and installed. The caulked asphalt planks were poured for the next warehouse, which resulted in an extension of the construction schedule.

2. The consumption of construction materials is relatively large. When using the warehouse-hopping method for construction, since the construction cannot be carried out at the same time, it is necessary to carry out formwork support for different positions, which leads to a huge cost of formwork.

Contents of the invention

In order to shorten the construction period and reduce the use of templates, the invention provides a concrete structure with additional steel bars to fix the water stop and its continuous pouring construction method.

Technical scheme of the present invention is as follows:

A concrete structure for fixing the waterstop with additional steel bars, including top layer steel bars, bottom layer steel bars, water stop belts and concrete, characterized in that it also includes additional steel bar frames, mortar pads and caulking asphalt boards, and the additional steel bar frames are divided into one A pair of upper additional reinforcement frames and a pair of lower additional reinforcement frames, a pair of upper additional reinforcement frames are connected to the top layer of reinforcement, a pair of lower additional reinforcement frames are connected to the bottom layer of reinforcement; two pairs of mortar are arranged between the upper additional reinforcement frame and the lower additional reinforcement frame Pads, a pair of mortar pads are fixedly bound to the upper additional steel bar frame, another pair of mortar pads are fixedly bound to the lower additional steel bar frame, and a waterstop is placed between the upper and lower pairs of mortar pads; The caulking asphalt plank and the lower caulking asphalt plank, the upper caulking asphalt plank is set between a pair of upper additional reinforcement frames, and the lower caulking asphalt plank is arranged between a pair of lower additional reinforcement frames.

Further, the upper additional reinforcement frame is welded to the top layer of reinforcement, and the lower additional reinforcement frame is welded to the bottom layer of reinforcement.

Further, the top layer of reinforcement is a reinforcement mesh composed of transverse reinforcement and longitudinal reinforcement, and the bottom reinforcement is a reinforcement mesh composed of transverse reinforcement and longitudinal reinforcement.

The waterstop is selected according to the needs. Preferably, the waterstop is a 654-type medium hole, with a width of 350mm and a thickness of 10mm. The size of the additional reinforcement frame is set according to the actual situation. Preferably, the processing width of the additional reinforcement frame is 160mm, the processing height is 76mm, and the diameter of the reinforcement is 8mm. The size of the mortar pad is set according to the actual situation, preferably, the height of the mortar pad is controlled to be 25mm.

The above-mentioned concrete structure with additional steel bars fixed to the waterstop is used in concrete structures such as construction joints, settlement joints, deformation joints, etc., and can realize continuous pouring of concrete.

A method for implementing continuous pouring of concrete by adding reinforcement to fix the waterstop, comprising the following steps:

1) Processing and making additional reinforcement frames, the additional reinforcement frames are divided into a pair of upper additional reinforcement frames and a pair of lower additional reinforcement frames;

2) According to the designed deformation joints, lay concrete block lines on the cushion;

3) Binding the underlying steel bars;

4) Weld a pair of lower additional reinforcement frames on the bottom reinforcement, displace the lower additional reinforcement frames and concrete vertical reinforcement, and fix the lower joint asphalt planks between the pair of lower additional reinforcement frames;

5) Bind and fix the lower mortar pads respectively on a pair of lower additional reinforcement frames;

6) Place a water stop on the lower mortar block and the lower caulking asphalt plank;

7) Binding the top layer of steel bars;

8) Weld the top layer of reinforcement and the upper additional reinforcement frame, the upper additional reinforcement frame corresponds to the lower additional reinforcement frame, and fix the upper caulking asphalt plank between the pair of upper additional reinforcement frames;

9) Bind and fix a pair of upper additional reinforcement frames and a pair of upper mortar pads;

10) Pour the concrete.

In the above method, the top layer of reinforcement is a reinforcement mesh composed of transverse reinforcement and longitudinal reinforcement, and the bottom reinforcement is a reinforcement mesh composed of transverse reinforcement and longitudinal reinforcement.

In the above method, when pouring concrete, the concrete on both sides of the additional reinforcement frame is put into the warehouse and vibrated symmetrically to prevent displacement.

Beneficial effects of the present invention: the concrete structure of the present invention not only does not affect the performance of the concrete, but also helps to speed up the construction progress, can pour concrete continuously, overcomes the defect of interval construction by jumping bin method, can greatly shorten the construction period, and can also reduce the formwork usage of.

Description of drawings

Fig. 1 is a left view structural schematic diagram of the present invention.

FIG. 2 is an enlarged schematic view of part A in FIG. 1 .

Fig. 3 is a left view structural schematic diagram of the embodiment.

FIG. 4 is an enlarged schematic view of part A in FIG. 3 .

In the figure, 101, the top horizontal reinforcement; 102, the top longitudinal reinforcement; 201, the bottom horizontal reinforcement; 202, the bottom longitudinal reinforcement; 3, the upper additional reinforcement frame; 4, the lower additional reinforcement frame; 5, the mortar block; 6, Waterstop; 7. Top caulking asphalt planks; 8. Bottom caulking asphalt planks; 9. Concrete.

detailed description

Example 1

In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution will be clearly and completely described below in conjunction with the accompanying drawings of the present invention.

As shown in Figures 3 and 4, a concrete structure with additional reinforcement to fix the waterstop, including top reinforcement, bottom reinforcement, additional reinforcement frame, two pairs of mortar pads 5, waterstop 6, caulking asphalt planks and concrete 9 . The top layer of reinforcement is composed of the top layer of transverse reinforcement 101 and the top layer of longitudinal reinforcement 102, and the top layer of transverse reinforcement 101 and the top layer of longitudinal reinforcement 102 form a mesh; form a mesh. The additional reinforcement frames are divided into a pair of upper additional reinforcement frames 3 and a pair of lower additional reinforcement frames 4 . The caulking asphalt planks are divided into upper caulking asphalt planks 7 and lower caulking asphalt planks 8 . Concrete 9 fills the structural space.

The pair of upper additional reinforcing bar frames 3 and the pair of lower additional reinforcing bar frames 4 are respectively welded to the top layer of reinforcing bars and the bottom layer of reinforcing bars. A pair of upper additional reinforcing bar frames 3 and a pair of lower additional reinforcing bar frames 4 place joint-filling asphalt planks 7,8 respectively, and the additional reinforcing bar frames 3,4 play the role of fixing the joint-filling asphalt planks 7,8.

The waterstop 6 is placed between the upper additional reinforcement frame 3 and the lower additional reinforcement frame 4, and the waterstop 6 and the upper and lower pairs of mortar pads 5 are bound and fixed. The waterstop 6 is a 654-type mesopore, with a width of 350mm and a thickness of 10mm. The height of the two pairs of mortar blocks 5 is controlled to be 25 mm, and the distance between the additional steel bars 3 and 4 and the water stop belt 6 is kept at 25 mm to prevent the formation of seepage channels and affect the water stop effect.

The fixed binding is fixed on the additional steel frame 4, and the two mortar pads 5 located on the lower side of the waterstop 6 and the lower caulking asphalt board 8 work together to support and fix the waterstop 6 at three positions to prevent the waterstop from 6 Due to the downward bending and deformation due to gravity, the additional reinforcement frame 4 is arranged at a distance of 500mm.

The fixed binding is under the additional steel frame 3, and the two mortar pads 5 located on the upper side of the water stop press the fixed water stop 6 to prevent the water stop 6 from floating when pouring concrete, and the additional steel frame 3 is arranged at a distance 500mm is arranged corresponding to the position of the additional reinforcement frame 4.

The diameter of the reinforcement used in the upper additional reinforcement frame 3 is 8mm, the processing width is 160mm, and the processing height is determined to be 76mm according to the design pre-embedded depth of the waterstop; processing height (76mm) = design depth of the waterstop (150mm) - Thickness of steel bar protection layer (25mm) - the sum of the diameters of two layers of steel bars 101 and 102 (24mm) - the height of mortar block 5 (25mm). The diameter of the steel bars used in the lower additional reinforcement frame 4 is also 8 mm, and the processing width is 175 mm; processing width (175 mm) = half width (175 mm) of water stop 6 + super wide outer edge of water stop 6 (10 mm) - caulking asphalt board 8 The design width is divided equally between the left and right (10mm). The processing height of the lower additional reinforcement frame 4 is made according to the actual situation of the reinforced concrete: the net height of the top and bottom longitudinal reinforcement 102, 202 - the height of the additional reinforcement frame 3 (76mm) - the height of the upper and lower mortar pads 5 (50mm) - stop Hose 6 thickness (10mm).

The two pairs of additional reinforcement frames 3 and 4 are fixed in the left and right directions of the joint-filling asphalt boards 7 and 8 to ensure that the size of the concrete structure and the thickness of the protective layer of reinforcement conform to the design.

The above-mentioned concrete structure with additional steel bars fixed to the waterstop can be used in concrete structures such as construction joints, settlement joints, deformation joints, etc., and can realize continuous pouring of concrete.

Example 2

A method for implementing continuous pouring of concrete by adding reinforcement to fix the waterstop, comprising the following steps:

1) processing and manufacturing additional reinforcement frames, the additional reinforcement frames are divided into a pair of upper additional reinforcement frames 3 and a pair of lower additional reinforcement frames 4;

2) According to the designed deformation joints, lay concrete block lines on the cushion;

3) Binding the underlying steel bars;

4) Welding a pair of lower additional reinforcement frames 4 on the bottom reinforcement, the lower additional reinforcement frames 4 and the concrete vertical reinforcement are misplaced, and fixing the lower joint asphalt planks 8 between the pair of lower additional reinforcement frames 4;

5) Binding and fixing the lower mortar pads 5 on a pair of lower additional reinforcement frames 4;

6) Place a waterstop 6 on the lower mortar block 5 and the lower caulking asphalt plank 8;

7) Binding the top layer of steel bars;

8) Weld the top layer of reinforcement and the upper additional reinforcement frame 3, the upper additional reinforcement frame 3 corresponds to the lower additional reinforcement frame 4, and fix the upper caulking asphalt plank 7 between a pair of upper additional reinforcement frames 3;

9) Binding and fixing a pair of upper additional reinforcement frames 3 and a pair of upper mortar pads 5;

10) Concrete pouring; when pouring concrete continuously, the concrete on both sides of the additional reinforcement frames 3 and 4 must be placed in the warehouse and vibrated symmetrically to prevent displacement.

The above is only an application example of the present invention in the reinforced concrete floor of the inlet channel of the Lihe eight-stage hydropower station in Zunhua City, Hebei Province, and does not limit the present invention. Any simple modification, change and equivalent structural transformation all belong to the protection scope of the technical solution of the present invention.

Claims (9)

1. A concrete structure for fixing the waterstop with additional reinforcement, comprising top layer reinforcement, bottom reinforcement, waterstop and concrete, is characterized in that: it also includes an additional reinforcement frame, mortar pads and caulking asphalt planks, and the additional reinforcement frame is divided into A pair of upper additional reinforcement frames and a pair of lower additional reinforcement frames, a pair of upper additional reinforcement frames are connected to the top layer of reinforcement, a pair of lower additional reinforcement frames are connected to the bottom layer of reinforcement; For mortar pads, one pair of mortar pads is fixedly bound to the upper additional steel bar frame, the other pair of mortar pads is fixedly bound to the lower additional steel bar frame, and a waterstop is placed between the upper and lower pairs of mortar pads; The upper caulking asphalt plank and the lower caulking asphalt plank are arranged between a pair of upper additional reinforcement frames, and the lower caulking asphalt plank is arranged between a pair of lower additional reinforcement frames. 2. The concrete structure for fixing the waterstop with additional reinforcement as claimed in claim 1, characterized in that: the upper additional reinforcement frame is welded with the top layer of reinforcement, and the lower additional reinforcement frame is welded with the bottom layer of reinforcement. 3. the concrete structure that additional reinforcing bar fixes waterstop as claimed in claim 1 is characterized in that: top layer reinforcing bar is the reinforcing mesh that is made up of transverse reinforcing bar and longitudinal reinforcing bar, and bottom reinforcing bar is the reinforcing mesh that is made up of transverse reinforcing bar and longitudinal reinforcing bar . 4. The concrete structure for fixing the waterstop with additional reinforcement as claimed in claim 1, characterized in that: the waterstop is a 654-type medium hole, with a width of 350mm and a thickness of 10mm. 5. The concrete structure for fixing the waterstop with additional reinforcement as claimed in claim 1, characterized in that: the processing width of the additional reinforcement frame is 160mm, the processing height is 76mm, and the diameter of the reinforcement is 8mm. 6. The concrete structure for fixing the waterstop with additional reinforcement as claimed in claim 1, characterized in that: the height of the mortar block is controlled to be 25mm. 7. A method for implementing continuous pouring of concrete by adding a steel bar to fix the waterstop, comprising the steps of: 1) Processing and making additional reinforcement frames, the additional reinforcement frames are divided into a pair of upper additional reinforcement frames and a pair of lower additional reinforcement frames; 2) According to the designed deformation joints, lay concrete block lines on the cushion; 3) Binding the underlying steel bars; 4) Weld a pair of lower additional reinforcement frames on the bottom reinforcement, displace the lower additional reinforcement frames and concrete vertical reinforcement, and fix the lower joint asphalt planks between the pair of lower additional reinforcement frames; 5) Bind and fix the lower mortar pads respectively on a pair of lower additional reinforcement frames; 6) Place a water stop on the lower mortar block and the lower caulking asphalt plank; 7) Binding the top layer of steel bars; 8) Weld the top layer of reinforcement and the upper additional reinforcement frame, the upper additional reinforcement frame corresponds to the lower additional reinforcement frame, and fix the upper caulking asphalt plank between the pair of upper additional reinforcement frames; 9) Bind and fix a pair of upper additional reinforcement frames and a pair of upper mortar pads; 10) Pouring concrete. 8. the method for the continuous pouring of concrete is realized by adding reinforcement as claimed in claim 7, characterized in that: the top layer of reinforcement is a reinforcement mesh made up of transverse reinforcement and longitudinal reinforcement, and the bottom reinforcement is composed of transverse reinforcement and longitudinal reinforcement Composed of steel mesh. 9. The method for implementing continuous pouring of concrete by fixing the waterstop with additional reinforcement as claimed in claim 7, characterized in that: when pouring concrete, the concrete on both sides of the additional reinforcement frame is symmetrically put into the warehouse and vibrated to prevent displacement.