CN112144675A - Precast concrete reversed ridge with overhanging reinforcing steel bars and construction method - Google Patents

Abstract

The invention relates to a precast concrete reverse sill with an overhanging reinforcing steel bar and a construction method. At present, the existing secondary masonry construction is that a concrete reverse ridge is arranged on the lower portion of a wall body of a kitchen and toilet, and the cast-in-place reverse ridge needs to be independently erected with ribs and poured with concrete, so that the construction difficulty is high, and the appearance quality after survival is poor. The utility model provides a reverse bank of precast concrete with overhanging reinforcing bar, its constitution includes: the steel bar reinforced concrete inverted ridge structure comprises an inverted ridge (1), wherein the inverted ridge is a reinforced concrete prefabricated part, a group of overhanging steel bars (2) are reserved at the bottom of the inverted ridge, the overhanging steel bars are straight steel bars or L-shaped steel bars or 180-degree hook-shaped steel bars or annular steel bars, transverse steel bars, longitudinal steel bars and tie steel bars are arranged in the inverted ridge, and a groove (4) is reserved on the side surface of the inverted ridge; the fixing grooves of the water stop strips (3) are reserved at the bottom of the reversed bank and at the joint of the reversed bank and the reversed bank, and the fixing grooves are located on the outer sides of the overhanging reinforcing steel bars and close to one side of the toilet or the kitchen room. The invention is applied to the field of buildings.

Description

Precast concrete reversed ridge with overhanging reinforcing steel bars and construction method

The technical field is as follows:

the invention relates to a precast concrete reverse sill with an overhanging reinforcing steel bar and a construction method.

Background art:

the existing secondary masonry construction is characterized in that a concrete reverse ridge is arranged on the lower portion of a wall body of a kitchen toilet, the cast-in-place reverse ridge needs to be independently erected with ribs and poured with concrete, the construction difficulty is high, the appearance quality after survival is poor, the construction of the mould is difficult to transport layer by layer, manual work is consumed for binding the ribs on site, and the occupied time for maintaining the concrete on site is shortened. When the cast-in-place inverted ridge and the floor slab are constructed together, the template needs to be lifted, and the construction difficulty is high; in the existing engineering construction mode, the cast-in-place reverse ridge is mostly subjected to secondary pouring after the floor slab construction is finished, and the concrete at the bottom of the reverse ridge has a through seam and is structurally waterproof; the labor is scattered on site, the construction cost is high, the field civilized construction is not facilitated, the secondary building starting time is influenced, and the construction period is not shortened.

The invention content is as follows:

the invention aims to provide a precast concrete reversed sill with an overhanging reinforcing steel bar and a construction method.

The above purpose is realized by the following technical scheme:

the utility model provides a reverse bank of precast concrete with overhanging reinforcing bar, its constitution includes: the anti-bank, anti-bank be reinforced concrete prefabricated component, anti-bank bottom reserve a set of overhanging reinforcing bar, overhanging reinforcing bar be straight reinforcing bar or L type reinforcing bar or 180 crotch form reinforcing bars or cyclic annular reinforcing bar, anti-bank inside set up horizontal reinforcing bar, longitudinal reinforcement and drawknot reinforcing bar, anti-bank side reserve the recess.

The anti-bank of precast concrete with overhanging reinforcing bar, anti-bank bottom and anti-bank seam crossing reserve the sealing rod fixed slot, the fixed slot be located overhanging reinforcing bar outside and press close to bathroom or kitchen indoor one side.

The precast concrete reverse sill with the overhanging reinforcing steel bars is in a straight shape, an L shape, a T shape, a square shape, a cross shape, a T shape or a square shape

Type or

And (4) molding.

The construction method of the precast concrete reversed sill with the overhanging reinforcing steel bars comprises the following steps:

(1) paying off: ejecting a precast concrete reversed ridge contour line on the upper surface of the laminated slab or the template, and binding floor slab reinforcing steel bars;

(2) carrying in place: the precast concrete reversed ridge is conveyed to the position above the contour line by 4 persons by using a special conveying tool;

(3) setting a cushion block 11 and leveling the elevation: arranging a cushion block below the precast concrete reverse ridge overhanging reinforcing steel bar, wherein the size of the cushion block is preferably 10cm by 1cm (height); the elevation is adjusted and leveled by spot welding steel bars on the overhanging steel bars of the prefabricated concrete reverse ridge, and the condition that the concrete surface at the bottom of the prefabricated reverse ridge enters the floor slab 8 and is 10mm below the top elevation is ensured;

(4) temporary fixation: temporarily fixing each section of precast concrete reversed bank in place through a special correction device and a special fixing device;

(5) and (3) correction: the horizontal position of the reverse sill is adjusted by a wire hanging mode or a turning rule, and the plane position, the verticality and the elevation of the prefabricated reverse sill are accurately adjusted and fixed by a special correction device, a special fixing device, a rubber hammer and the like which are arranged at the transfer position of the reverse sill;

(6) pouring concrete: pouring the upper laminated layer or floor concrete of the prefabricated laminated slab to avoid that the vibrating rod directly touches the reverse ridge of the prefabricated concrete in the vibrating process of the concrete, and the concrete at the bottom of the reverse ridge needs to be vibrated and compacted;

(7) seam treatment: after the floor concrete maintenance is finished, the special correction device is dismantled, waterproof mortar is stuffed on two sides of the water-swelling water stop strip at the joint between the reverse ridge and the structural wall 9, and the installation of the reverse ridge of the precast concrete is finished.

The invention has the beneficial effects that:

1. according to the invention, the batch production of the reversed ridges at the bottoms of the secondary masonry walls of the kitchens and the toilets is carried out by utilizing a standardized production mode, so that the working procedures of on-site formwork erection, reinforcement binding, concrete pouring and maintenance are omitted, and the on-site construction difficulty is reduced; the partition wall engineering occupation time is shortened, the partition wall engineering start time is advanced, the construction period is shortened, the advance delivery is realized, and the construction cost is saved.

According to the invention, the precast concrete reverse ridge is adopted, and the water-swelling water stop strip or the water stop steel plate is arranged at the mounting gap, so that the sectional and repeated construction of the field cast-in-place process is avoided, the waterproof effect of the structure is improved, the waterproof effect of the kitchen and the toilet is improved, and the complaint risk of owners is reduced.

The invention has standardized processing and standardized installation and improves the construction efficiency.

The prefabricated reverse ridge has the advantages of accurate installation position and elevation, good survival quality, construction site image improvement, on-site repair avoidance and excellent construction precondition provision for subsequent construction.

The invention sets a reverse ridge mould in a factory or a construction site, places or binds a reinforcement cage in the mould, binds and fixes the overhanging reinforcement, pours concrete in the mould, cures the concrete to finish the prefabricated reinforced concrete reverse ridge prefabricated component, and sticks a water stop bar in the prefabricated reverse ridge water stop bar fixing groove.

Description of the drawings:

FIG. 1 is a schematic diagram I of a precast concrete inverted ridge of the present invention;

FIG. 2 is a schematic diagram II of a precast concrete inverted ridge of the present invention;

FIG. 3 is a first section view of the precast concrete inverted ridge in different forms of overhanging reinforcing steel bars;

FIG. 4 is a sectional view of a precast concrete inverted ridge in different forms of overhanging reinforcing steel bars;

FIG. 5 is a third sectional view of the precast concrete inverted ridge in different forms of the overhanging reinforcing steel bars;

FIG. 6 is a cross-sectional view of a prefabricated concrete reversed ridge in different forms of overhanging reinforcing steel bars;

FIG. 7 is a cross-sectional view of a precast concrete inverted ridge in different forms of overhanging reinforcing bars;

FIG. 8 is a schematic view of a straight-line and L-shaped precast concrete inverted ridge combined assembly of the present invention;

FIG. 9 is a drawing of the present invention

A schematic view of installation of a reverse ridge of the type precast concrete;

FIG. 10 is a schematic view of a groove of a pre-fabricated concrete inverted ridge reserved water pipe of the invention;

FIG. 11 is a schematic diagram of a groove of a precast concrete reversed ridge reserved electric tube;

FIG. 12 is a schematic view of a through hole of a precast concrete reversed ridge reserved electric tube according to the present invention;

FIG. 13 is a drawing of the present invention

A top view of the installation of the reverse ridge of the precast concrete;

FIG. 14 is a top view of the assembly of the linear and L-shaped prefabricated inverted ridges of the present invention;

FIG. 15 is a schematic view of the connection between the precast concrete reversed ridge adhesive water stop strip and the structural wall body;

FIG. 16 is a diagram of a connecting node between a prefabricated concrete inverted ridge overhanging water stop steel plate and a structural wall body;

FIG. 17 is a first diagram of a joint between a prefabricated concrete reversed ridge adhered water stop strip and a structural wall body;

FIG. 18 is a second view of a joint between a prefabricated concrete reversed ridge adhered water stop strip and a structural wall body according to the present invention;

fig. 19 is a schematic view showing the installation of the precast concrete reversed ridge of the present invention.

In the figure: 1. reversely banking; 2. overhanging reinforcing steel bars; 3. a water stop bar; 4. a groove; 5, hoisting points; 6. an electric tube; 7. reserving holes in the water pipe; 8. floor slab, 9. structural wall; 10. a water stop steel plate and 11. a cushion block.

The specific implementation mode is as follows:

example 1:

the utility model provides a reverse bank of precast concrete with overhanging reinforcing bar, its constitution includes: the anti-bank 1, anti-bank be reinforced concrete prefabricated component, anti-bank bottom reserve a set of overhanging reinforcing bar 2, overhanging reinforcing bar be straight reinforcing bar or L type reinforcing bar or 180 crotch form reinforcing bar or cyclic annularThe steel bar, set up horizontal steel bar, longitudinal reinforcement and tie bar inside the said anti-bank, the side of the said anti-bank reserves the groove 4; water stop bar 3 fixing grooves are reserved at the bottom of the reversed bank and at the joint of the reversed bank and the reversed bank, and the fixing grooves are positioned at the outer sides of the overhanging reinforcing steel bars and close to one side of the interior of a toilet or a kitchen; the reverse ridge is in a straight shape, an L shape, a T shape, a square shape, a cross shape, a T shape or

Type or

And (4) molding.

Example 2:

the precast concrete with the overhanging reinforcing steel bars is reversed to the bank and the construction method:

(1) paying off: ejecting a precast concrete reversed ridge contour line on the upper surface of the laminated slab or the template, and binding floor slab reinforcing steel bars;

(2) carrying in place: the precast concrete reversed ridge is conveyed to the position above the contour line by 4 persons by using a special conveying tool;

(3) setting a cushion block 11 and leveling the elevation: arranging a cushion block below the precast concrete reverse ridge overhanging reinforcing steel bar, wherein the size of the cushion block is preferably 10cm by 1cm (height); the elevation is adjusted and leveled by spot welding steel bars on the overhanging steel bars of the prefabricated concrete reverse ridge, and the condition that the concrete surface at the bottom of the prefabricated reverse ridge enters the floor slab 8 and is 10mm below the top elevation is ensured;

(4) temporary fixation: temporarily fixing each section of precast concrete reversed bank in place through a special correction device and a special fixing device;

(5) and (3) correction: the horizontal position of the reverse sill is adjusted by a wire hanging mode or a turning rule, and the plane position, the verticality and the elevation of the prefabricated reverse sill are accurately adjusted and fixed by a special correction device, a special fixing device, a rubber hammer and the like which are arranged at the transfer position of the reverse sill;

(6) pouring concrete: pouring the upper laminated layer or floor concrete of the prefabricated laminated slab to avoid that the vibrating rod directly touches the reverse ridge of the prefabricated concrete in the vibrating process of the concrete, and the concrete at the bottom of the reverse ridge needs to be vibrated and compacted;

(7) seam treatment: after the floor concrete maintenance is finished, the special correction device is dismantled, waterproof mortar is stuffed on two sides of the water-swelling water stop strip at the joint between the reverse ridge and the structural wall 9, and the installation of the reverse ridge of the precast concrete is finished.

Claims (4)

1. The utility model provides a reverse bank of precast concrete with overhanging reinforcing bar, its constitution includes: anti-bank, characterized by: the anti-bank be reinforced concrete prefabricated component, anti-bank bottom reserve a set of overhanging reinforcing bar, overhanging reinforcing bar be straight reinforcing bar or L type reinforcing bar or 180 crotch form reinforcing bar or cyclic annular reinforcing bar, anti-bank inside set up horizontal reinforcing bar, longitudinal reinforcement and drawknot reinforcing bar, anti-bank side reserve the recess.

2. The precast concrete reversed sill with the overhanging steel bars according to claim 1, characterized in that: the anti-bank bottom and anti-bank seam crossing reserve the sealing rod fixed slot, the fixed slot be located overhanging reinforcing bar outside and press close to bathroom or kitchen indoor one side.

3. The precast concrete reversed sill with the overhanging steel bars according to claim 2, characterized in that: the reverse ridge is in a straight shape, an L shape, a T shape, a square shape, a cross shape, a T shape or

Type or

And (4) molding.

4. A method for constructing a precast concrete reversed sill with external reinforcing steel bars according to any one of claims 1 to 3, which is characterized in that: the method comprises the following steps:

(1) paying off: ejecting a precast concrete reversed ridge contour line on the upper surface of the laminated slab or the template, and binding floor slab reinforcing steel bars;

(2) carrying in place: the precast concrete reversed ridge is conveyed to the position above the contour line by 4 persons by using a special conveying tool;

(3) setting a cushion block 11 and leveling the elevation: arranging a cushion block below the precast concrete reverse ridge overhanging reinforcing steel bar, wherein the size of the cushion block is preferably 10cm by 1cm (height); the elevation is adjusted and leveled by spot welding steel bars on the overhanging steel bars of the prefabricated concrete reverse ridge, and the condition that the concrete surface at the bottom of the prefabricated reverse ridge enters the floor slab 8 and is 10mm below the top elevation is ensured;

(4) temporary fixation: temporarily fixing each section of precast concrete reversed bank in place through a special correction device and a special fixing device;

(5) and (3) correction: the horizontal position of the reverse sill is adjusted by a wire hanging mode or a turning rule, and the plane position, the verticality and the elevation of the prefabricated reverse sill are accurately adjusted and fixed by a special correction device, a special fixing device, a rubber hammer and the like which are arranged at the transfer position of the reverse sill;

(6) pouring concrete: pouring the upper laminated layer or floor concrete of the prefabricated laminated slab to avoid that the vibrating rod directly touches the reverse ridge of the prefabricated concrete in the vibrating process of the concrete, and the concrete at the bottom of the reverse ridge needs to be vibrated and compacted;

(7) seam treatment: after the floor concrete maintenance is finished, the special correction device is dismantled, waterproof mortar is stuffed on two sides of the water-swelling water stop strip at the joint between the reverse ridge and the structural wall 9, and the installation of the reverse ridge of the precast concrete is finished.

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