CN106032705A - Integrated casting molding construction method of reinforced concrete floor system - Google Patents

Abstract

The invention discloses a construction method for integral pouring and forming of a reinforced concrete floor. The integral pouring and forming construction method of a reinforced concrete floor separately assembles a self-balancing integral structure of a reinforced concrete beam and a reinforced concrete floor. The assembled self-balancing structure is hoisted, and concrete is poured in the assembled floor self-balancing formwork structure to form an integrally poured reinforced concrete floor structure. This method is convenient for hoisting to the construction site for installation after the assembly is completed, and After the installation is completed, the construction is completed by integral pouring. This method can simplify the on-site construction process, and the integrity of the completed structure is good. This invention is used in the field of building construction.

Description

A kind of integrated pouring forming construction method of reinforced concrete floor

technical field

The invention relates to the field of building construction, in particular to an integrated pouring and forming construction method for a reinforced concrete floor.

Background technique

When ordinary reinforced concrete floors are constructed on site, it is first necessary to form the structure of reinforced concrete beams and reinforced concrete floors, and then erect the formed reinforced concrete beams and reinforced concrete floors to form reinforced concrete floors.

The on-site construction steps of ordinary reinforced concrete floors are many, the process is complicated, and the on-site construction period is long. The traditional prefabricated reinforced concrete beams and slabs complete the above steps in the factory, and after transporting the fully prefabricated reinforced concrete beams and slabs to the construction site, they are hoisted and installed. The weight of transportation and hoisting and installation is relatively large, and the connection between prefabricated components The structure is complex and the integrity of the structure is not good.

Contents of the invention

In order to solve the above problems, the present invention provides an integrated pouring and forming construction method of a reinforced concrete floor that can be directly formed by pouring after the overall assembly of the formwork is completed.

The technical solution adopted by the present invention to solve its technical problems is:

An integrated pouring forming construction method for a reinforced concrete floor, comprising the following steps:

1) A beam reinforcement cage is formed by connecting several beam stirrups arranged in parallel along the length direction of the concrete beam through the main reinforcement of several beam reinforcement cages arranged along the length direction of the concrete beam. The length of the main reinforcement of each beam reinforcement cage is longer than the length of the beam formwork and extends out of the beam At both ends of the template, each beam stirrup includes beam skeleton reinforcement with external threads on both sides of the reinforcement cage and at the bottom;

2) The top of the vertical beam skeleton reinforcement is higher than the height of the side beam formwork, and the additional reinforcement of the beam connection part connected to the top of the two beam skeleton reinforcement is arranged between the vertical beam skeleton reinforcement;

3) Install the beam template at the bottom of the vertical beam skeleton reinforcement, and pass the bottom of the beam skeleton reinforcement with external threads through the beam template at the bottom;

4) Set beam templates on both sides, and penetrate the beam skeleton reinforcement with external threads laterally through the beam templates on the side;

5) On the outside of the two butted beam templates, beam stiffening steel is arranged at right angles. The two sides of the beam stiffening steel are respectively inserted into the end of the beam skeleton steel bar with external thread, and the beam template is realized through the connection between the nut and the external thread. and the fixing of beam stiffening steel;

6) At the top of the beam formwork on both sides, a right-angled floor support section steel is arranged. The right-angled side of the floor support section steel is close to the beam formwork, and the fixed connection with the top of the beam formwork is realized through nuts and external threads. The other right-angle side of the support section steel is suspended horizontally;

7) Temporary fixed beam support movable gluten, concrete beam self-balancing integral formwork assembly;

8) The floor reinforcement mesh is formed by welding and connecting the floor skeleton steel bars overlapped vertically and horizontally by several bending bars;

9) Install a rectangular connection plate at the fixed connection point between the floor formwork, the floor reinforcement mesh and the reinforcement truss;

10) Install the floor reinforcement mesh and the reinforcement truss by fixed connection with each rectangular connecting plate on the floor formwork, the reinforcement trusses are located above the floor reinforcement mesh and arranged parallel to each other to form an integrated reinforced concrete floor formwork Assembled structure;

11), transport the reinforced concrete beam formwork assembly structure and the reinforced concrete floor formwork assembly structure to the construction site, and hoist the reinforced concrete beam formwork assembly structure in place;

12) Install the support rods on the beam structure and the floor structure, install the stirrup mesh at the connection node between the beam and the column, and the connection node between the beam and the wall;

13) Move the movable gluten of the beam support to the predetermined position, and install the side formwork in the joint area of the beam-column connection and the joint area of the beam-wall connection;

14), hoisting in place reinforced concrete floor formwork assembly structure;

15) Install floor lap joint bottom reinforcement and floor surface reinforcement;

16) Integral pouring of beam and slab concrete, concrete and beam and slab formwork condense to form a whole;

17) After the concrete reaches the predetermined strength, remove the formwork and temporarily reinforce the angle steel and support rods for recycling.

As a further improvement of the technical solution of the present invention, in step 1), the stirrups of the beams are vertically and horizontally connected to each other through several beam skeleton reinforcements.

As a further improvement of the technical solution of the present invention, each beam stirrup also includes an additional beam stirrup or an additional beam stirrup ring lapped between the steel bars of each beam skeleton.

As a further improvement of the technical solution of the present invention, each additional beam stirrup is a steel bar vertically and horizontally lapped between the steel bars of the beam skeleton.

Further as an improvement of the technical solution of the present invention, an additional beam stirrup ring is a steel ring formed by bending a steel bar, and the steel bar ring and each beam frame steel bar are dislocated and fixed, and the connection point between the steel bar ring or the steel bar and each beam frame steel bar Fix by welding or binding.

As a further improvement of the technical solution of the present invention, in step 15), the temporary construction connection between the floor and the concrete beam installation is realized through the floor support section steel on both sides of the beam top.

As a further improvement of the technical solution of the present invention, the steel bar truss includes truss bottom bars on both sides and truss top bars arranged above the middle of the two truss bottom bars, and each truss bottom bar and truss top bars pass through a wave-like bending fold Bend ribs for multi-point connections.

As a further improvement of the technical solution of the present invention, the connection point between the bottom reinforcement of the truss and the bending reinforcement is fixedly connected with the rectangular connection plate.

As a further improvement of the technical solution of the present invention, after confirming the installation position of the rectangular connecting plate, the connection between the rectangular connecting plate and the floor formwork is realized through four fastening bolts at right angles.

As a further improvement of the technical solution of the present invention, the beam formwork and the beam reinforcement cage are connected to form a self-balancing whole through the tension connection of the beam skeleton reinforcement, and the floor formwork is fixedly connected with the floor reinforcement mesh and the reinforcement truss to form a whole, which can be transported and hoisted as a whole.

Beneficial effects of the present invention: the integrated pouring and molding construction method of the reinforced concrete floor will separately assemble the self-balancing overall structure that forms the reinforced concrete beam and the reinforced concrete floor, hoist the self-balancing structure that has been assembled separately, and Concrete is poured into the completed floor self-balancing formwork structure to form an integrally poured reinforced concrete floor structure. This method is convenient for hoisting to the construction site for installation after the assembly is completed, and the integral pouring completes the construction after the installation. This method can The on-site construction process is simplified, and the integrity of the completed structure is good.

Description of drawings

The present invention will be further described below in conjunction with accompanying drawing:

Fig. 1 is the top view of the overall structure of the beam integral formwork structure in the embodiment of the present invention;

Fig. 2 is a side view of the overall structure of the overall formwork structure of the beam in the embodiment of the present invention;

Fig. 3 is a cross-sectional view of the front view of the integral formwork structure of the beam in the embodiment of the present invention;

Fig. 4 is a structural schematic diagram of floor support rods and building beams in an embodiment of the present invention;

Fig. 5 is a detailed schematic diagram of the structure of part A in Fig. 4 of the present invention;

Fig. 6 is a schematic diagram of the overall structure of the overall formwork structure of the floor slab in the embodiment of the present invention;

Fig. 7 is a structural sectional view of the connection part of the steel bar truss of the overall formwork structure of the floor slab in the embodiment of the present invention;

Fig. 8 is a structural sectional view of the connection part of the floor slab integral formwork structure in the embodiment of the present invention;

Fig. 9 is a top view of the structure of the connection part of the floor's overall formwork structure in the embodiment of the present invention;

Fig. 10 is a schematic diagram of the overall structure of the floor reinforcement mesh in the integral formwork structure of the floor in the embodiment of the present invention.

detailed description

Referring to Figures 1 to 10, the present invention is an integrated pouring and forming construction method for a reinforced concrete floor, comprising the following steps:

1) A beam reinforcement cage is formed by connecting several beam reinforcement cage main reinforcements 13 arranged along the length direction of the concrete beam to several beam stirrups 14 arranged in parallel along the length direction of the concrete beam, and the length of each beam reinforcement cage main reinforcement 13 is longer than the length of the beam template 11 And stretch out the two ends of beam formwork 11, each beam stirrup 14 comprises the beam skeleton reinforcing bar 141 that is positioned at the both sides of beam reinforcement cage and bottom band external thread;

2) The top of the vertically arranged beam skeleton reinforcing bars 141 is higher than the height of the side beam formwork 11, and the beam connecting portion additional reinforcing bars 142 connected to the tops of the two beam skeleton reinforcing bars 141 are arranged between the vertically arranged beam skeleton reinforcing bars 141;

3) Install the beam template 11 at the bottom of the vertical beam skeleton reinforcement 141, and pass the bottom of the beam skeleton reinforcement 141 with external threads through the beam template 11 at the bottom;

4) Install beam formwork 11 on both sides, and penetrate the beam formwork 11 on the side with the beam skeleton reinforcement 141 with external threads;

5) On the outside of the two butted beam templates 11, a beam stiffening section steel 12 arranged at right angles is arranged, and the two sides of the beam stiffening section steel 12 respectively penetrate into the end of the beam skeleton steel bar 141 with external thread, and pass through the nut and the external thread. The connection realizes the fixing of the beam template 11 and the beam stiffening section steel 12;

6) At the top of the beam formwork 11 on both sides, a right-angled floor support section steel is arranged, and the right-angled side of the floor support section steel is close to the beam formwork 11, and is fixed to the top of the beam formwork 11 through nuts and external threads. Connection, the other right-angled side of the floor support section steel is suspended horizontally;

7) Temporary fixed beam support movable gluten, concrete beam self-balancing integral formwork assembly;

8) A number of vertically and horizontally overlapped floor skeleton steel bars 21 are welded and connected to form a floor steel mesh;

9) Install a rectangular connection plate 25 at the fixed connection point between the floor formwork 22 and the floor reinforcement mesh and reinforcement truss 24;

10) Install the floor reinforcement mesh and the reinforcement truss 24 by fixedly connecting with each rectangular connecting plate 25 on the floor formwork 22. The reinforcement truss 24 is located above the floor reinforcement mesh and arranged parallel to each other to form an integrated Reinforced concrete floor formwork 22 assembly structure;

11), transport the assembled structure of the reinforced concrete beam formwork and the assembled structure of the reinforced concrete floor formwork 22 to the construction site, and hoist the assembled structure of the reinforced concrete beam formwork in place;

12) Install the support rods 10 on the beam structure and the floor structure, install the stirrup mesh at the connection node between the beam and the column, and the connection node between the beam and the wall;

13) Move the movable gluten of the beam support to the predetermined position, and install the side formwork in the joint area of the beam-column connection and the joint area of the beam-wall connection;

14), hoisting in place reinforced concrete floor formwork 22 assembly structure;

15) Install floor lap joint bottom reinforcement and floor surface reinforcement;

16) Integral pouring of beam and floor concrete, concrete and beam and floor formwork 22 condense to form a whole;

17) After the concrete reaches the predetermined strength, the formwork is removed to temporarily reinforce the angle steel and support rod 10 for recycling.

The integrated pouring and forming construction method of the reinforced concrete floor will form the self-balancing overall structure of the reinforced concrete beam and the reinforced concrete floor to be assembled separately, and the self-balancing structure that has been assembled separately will be hoisted, and the assembled floor will be self-balancing. Concrete is poured into the formwork structure to form an integrally poured reinforced concrete floor structure. This method is convenient for hoisting to the construction site for installation after the assembly is completed, and the construction is completed by integral pouring after the installation. This method can simplify the construction process on site, and The integrity of the structure after construction is good.

As a preferred embodiment of the present invention, in step 1), each beam stirrup 14 is vertically and horizontally connected to each other by several beam skeleton steel bars 141 .

As a preferred embodiment of the present invention, each beam stirrup 14 also includes an additional beam stirrup or an additional beam stirrup ring lapped between each beam skeleton steel bar 141 .

As a preferred embodiment of the present invention, each additional beam stirrup is a steel bar overlapping vertically and horizontally between the steel bars 141 of the beam skeleton.

As a preferred embodiment of the present invention, the additional beam stirrup ring is a steel ring formed by bending steel bars, the steel ring is fixed with each beam frame steel bar 141 in dislocation, and the connection between the steel bar ring or the steel bar and each beam frame steel bar 141 Points are secured by welding or tying.

As a preferred embodiment of the present invention, in the step 15), the temporary construction connection between the floor and the concrete beam is realized through the floor support section steel on both sides of the beam top.

As a preferred embodiment of the present invention, the steel bar truss 24 includes truss bottom bars 241 on both sides and truss top bars 243 arranged above the middle of the two truss bottom bars 241, and each truss bottom bar 241 and truss top bars 243 pass through in waves. The bending ribs 242 bent in the same shape are used for multi-point connection.

As a preferred embodiment of the present invention, the connecting points of the truss bottom rib 241 and the bending rib 242 are fixedly connected with the rectangular connecting plate 25 .

As a preferred embodiment of the present invention, after the installation position of the rectangular connecting plate 25 is confirmed, the connection between the rectangular connecting plate 25 and the floor formwork 22 is realized through four fastening bolts at right angles.

As a preferred embodiment of the present invention, the beam formwork and the beam reinforcement cage are connected to form a self-balancing whole through the tension connection of the beam skeleton reinforcement, and the floor formwork 22 is fixedly connected with the floor reinforcement mesh and the reinforcement truss 24 to form a whole, which can be transported and hoisted as a whole.

After the reinforcement cage is fixed to the beam formwork 11 on both sides and bottom to form a self-balancing structure, the steel reinforcement cage 13 and the floor slabs on both sides are connected to the side wall panels to make the assembled concrete beam self-balancing as a whole. The beam formwork structure is fixedly connected to the side wall panels, etc., and the reinforced concrete beam is formed by pouring concrete above the self-balancing structure.

The beam skeleton steel bar 141 forming the upper part of the reinforced concrete beam exposes the upper surface of the reinforced concrete beam, and is connected by the additional steel bar 142 of the beam connection part. Improve the overall strength and earthquake resistance.

According to the difference in the width of the reinforced concrete wall, additional beam stirrups and additional beam stirrup circles can be set up on each beam stirrup 14 to enhance the strength of each beam stirrup 14 .

Additional stirrups 17 are arranged at intervals between adjacent beam stirrups 14, and each additional stirrup 17 includes a number of vertically and horizontally overlapping reinforcing bars that are all connected to the main reinforcement 13 of the beam reinforcing cage or surrounding reinforcing rings outside the vertical reinforcing bars. It can enhance the overall strength of the steel cage structure.

A screw hole can be set on the beam template 11, and the bolt 15 is set with an internal thread, and the external thread fixed connection with the end of the beam skeleton steel bar 141 is realized through the screw hole. By adjusting the bolts 15 from the outside, the connection firmness of the beam formwork 11 can be adjusted, so that the integral beam formwork 11 can achieve better connection firmness.

Beam stiffening steel 12 is arranged between two adjacent beam formworks 11, and is fixedly connected with the beam formworks 11 on both sides, so that the integral beam formwork can form a whole with a seal around it, preventing concrete from leaking during the concrete pouring process. At the same time, The connection firmness of the integral beam formwork can be enhanced.

The beam formwork 11 is a permanent beam formwork, which is combined with concrete after the concrete pouring is completed, and does not need to be dismantled, which can save construction procedures.

The setting of the steel bar truss 24 can increase the space of the facade of the floor steel mesh, which is convenient to enhance the load-bearing effect of the floor steel mesh in the concrete floor during the concrete pouring process.

The rectangular connecting plate 25 can be connected with the floor steel mesh or steel bar truss 24 by welding or other processes, and then the connection between the rectangular connecting plate 25 and the floor formwork 22 can be realized by fastening bolts 251, thereby forming an integrated integral floor formwork structure.

Of course, the present invention is not limited to the above-mentioned embodiments. Those skilled in the art can also make equivalent modifications or replacements without violating the spirit of the present invention. These equivalent modifications or replacements are all included in the claims of this application. within a limited range.

Claims (10)

1. the integral type of a reinforced concrete floor pours molding construction method, it is characterised in that comprise the following steps:

1), the some main muscle of beam steel cage by arranging along beams of concrete length direction connect some beam stirrup formation beam steel cages be arrangeding in parallel along beams of concrete length direction, the length of each described main muscle of beam steel cage is longer than the length of beam forms and stretches out the two ends of beam forms, and each described beam stirrup includes being positioned at steel reinforcement cage both sides and bottom belt externally threaded beam framework reinforcing bar；

2), the top of vertically arranged described beam framework reinforcing bar higher than the height of the beam forms of side, the beam connecting portion additional bar being connected to two beam framework reinforcing bar tops is set between vertically arranged described beam framework reinforcing bar；

3), bottom vertically arranged described beam framework reinforcing bar mounting rail template, by with bottom externally threaded described beam framework reinforcing bar through the beam forms of bottom；

4), beam forms is set in both sides, will laterally penetrate the beam forms of side with externally threaded described beam framework reinforcing bar；

5), arranging the beam of at right angles setting put more energy into shaped steel outside the beam forms of two docking, the put more energy into both sides of shaped steel of described beam respectively penetrate the externally threaded beam framework steel bar end of band, and realize beam forms by the connection between nut and external screw thread and beam is put more energy into the fixing of shaped steel；

6), the described beam forms top in both sides arranges the floor bearing shaped steel being rectangular in shape, one right-angle side of described floor bearing shaped steel is close to beam forms, and by nut be connected with external screw thread realize be connected with the fixing of beam forms top, another unsettled setting of right-angle side level of described floor bearing shaped steel；

7), interim fixing beam support may move gluten, beams of concrete self-balancing monoblock type template assembly molding；

8), formation floor reinforced bar mesh is connected by some floor framing reinforcement welding overlapped in length and breadth；

9), rectangular connecting panels is installed in the fixed connection point position at slab form with floor reinforced bar mesh, steel bar girder；

10), floor reinforced bar mesh and steel bar girder are installed by fixing to be connected with each rectangular connecting panels on described slab form, described steel bar girder is positioned at the top of floor reinforced bar mesh, and be set parallel to each other, form the reinforced concrete floor template assembly structure of integral type；

11), described reinforced beam template assembly structure and reinforced concrete floor template assembly structure are transported to job site, lift reinforced beam template assembly structure in place；

12) support rod 10, on mounting rail structure and floor construction, mounting rail and column connected node, beam are connected the stirrup mesh sheet of node with wall；

13), by beam support may move gluten and move to precalculated position, mounting rail and column connected node district, beam are connected the Side shuttering of node area with wall；

14), reinforced concrete floor template assembly structure in place is lifted；

15), floor overlap joint end muscle and floor face reinforcing bar are installed；

16), one-piece casting beam and floorslab concrete, concrete and beam and slab form condensation formation entirety；

17), after concrete reaches predetermined strength, form removal temperature pier angle steel and support rod, recycle.

The integral type of reinforced concrete floor the most according to claim 1 pours molding construction method, it is characterised in that: in described step 1), each beam stirrup is connected the most in length and breadth by some beam framework reinforcing bars.

The integral type of reinforced concrete floor the most according to claim 2 pours molding construction method, it is characterised in that: each described beam stirrup also includes that be overlapped between each beam framework reinforcing bar separately adds beam stirrup or separately add beam stirrup circle.

The integral type of reinforced concrete floor the most according to claim 3 pours molding construction method, it is characterised in that: each described beam stirrup that separately adds is the reinforcing rod being overlapped between beam framework reinforcing bar in length and breadth.

The integral type of reinforced concrete floor the most according to claim 3 pours molding construction method, it is characterized in that: the described beam stirrup circle that separately adds is a steel ring bent by reinforcing bar, the dislocation of described steel ring and each beam framework reinforcing bar is fixing, and described steel ring or reinforcing rod pass through with the junction point of each beam framework reinforcing bar to weld or colligation is fixed.

The integral type of reinforced concrete floor the most according to claim 1 pours molding construction method, it is characterised in that: in described step 15), realize, by the described floor bearing shaped steel of back both sides, the temporary construction that floor installs with beams of concrete and be connected.

The integral type of reinforced concrete floor the most according to claim 1 pours molding construction method, it is characterized in that: described steel bar girder includes muscle and the truss top muscle being provided above in the middle part of muscle at the bottom of two truss at the bottom of the truss of both sides, carries out Mulit-point Connection by the bending muscle in wavy bending at the bottom of each described truss between muscle and truss top muscle.

The integral type of reinforced concrete floor the most according to claim 7 pours molding construction method, it is characterised in that: muscle at the bottom of described truss is fixing with bending muscle junction point and rectangular connecting panels to be connected.

The integral type of reinforced concrete floor the most according to claim 1 pours molding construction method, it is characterised in that: after confirming the installation position of described rectangular connecting panels, realize the connection between rectangular connecting panels and slab form by the fastening bolt of four right-angle positions.

The integral type of reinforced concrete floor the most according to claim 1 pours molding construction method, it is characterized in that: described beam forms is connected formation self-balancing entirety by beam framework reinforcing bar to drawing with beam steel cage, described slab form is fixedly connected to form one with floor reinforced bar mesh and steel bar girder, can install in whole Transporting and lifting.