CN206438529U - Beam and slab type raft foundation formwork support structure - Google Patents

Abstract

The utility model discloses a beam-slab type raft-type foundation formwork supporting structure, which comprises a steel bar frame formed by binding beam steel bars and stirrups, a beam side formwork supported on the steel bar frame, and tension bolts for fixing the beam side formwork. The steel bars vertically inserted into the cushion at intervals constitute the formwork support system of the raft foundation, and the beam steel bars are provided with laterally inclined steel bar braces. Due to the cancellation of the horizontal support system between the vertical and horizontal beams in the utility model, the workload of the formwork support is greatly reduced, thereby saving the engineering cost to a greater extent; It provides a sufficient working surface and guarantees the quality of concrete pouring. It not only saves engineering materials, but also reduces labor input, speeds up construction, and reduces input costs.

Description

Beam-slab raft foundation formwork support structure

technical field

The utility model relates to the technical field of supporting structures between templates, in particular to a beam-slab type raft-type foundation template supporting structure.

Background technique

The beam-slab raft foundation is a form of foundation for buildings. The traditional construction method of the beam-slab raft foundation is to tie up the steel skeleton. As shown in Figure 1, the formwork 11 is supported after the elevation and horizontal line are determined, and the formwork 11 is fixed. Finally, between two adjacent foundation beams 12, scaffolding rods or wooden squares 13 need to be horizontally placed between the side formworks 11 of the beams for support and fixation, and the formwork 11 mostly adopts steel formwork, wood formwork or steel-wood mixed formwork In practice, this construction method takes up a large working area, which is inconvenient for subsequent concrete pouring construction, and the quality of concrete construction is not easy to control, which makes the construction period longer, the workload larger, and the construction cost increased.

In view of this, the utility model is proposed.

Utility model content

The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a beam-slab type raft-type foundation formwork support structure, so that the adjacent foundation beams do not need to be supported by transverse support members, so as to reduce the difficulty of concrete construction and reduce the Reduce engineering costs and improve work efficiency.

In order to solve the problems of the technologies described above, the basic idea of the technical solution adopted by the utility model is:

A beam-slab-type raft-type foundation formwork support structure, including a steel skeleton formed by binding beam steel bars and stirrups, beam side formwork supported on the steel skeleton, and tension bolts for fixing the beam side formwork, and inserting pads vertically at intervals The reinforcement of the first floor constitutes the formwork support system of the raft foundation, and the beam reinforcement is provided with laterally inclined reinforcement diagonal braces.

Preferably, in the formwork support structure of the above-mentioned beam-slab type raft foundation, the steel bar skeleton is provided with stirrups for fixing the steel bar diagonal braces, the upper ends of the steel bar diagonal braces are connected with the stirrups, and the bottom ends of the steel bar diagonal braces pass through the raft foundation The constructed bottom plate located above the cushion is fixedly connected to the cushion and is fixedly connected with the bottom plate reinforcement of the bottom plate, and/or the bottom end of the diagonal bracing of the steel bar is fixedly connected with the steel bar vertically inserted into the cushion.

Preferably, in the above-mentioned beam-slab type raft-type foundation formwork support structure, the stirrups used to fix the diagonal bracing of steel bars are additional stirrups with an interval of 900 mm, and are welded with a steel bar with a diameter of 14 mm as the steel bar set laterally Diagonal brace.

Preferably, in the above beam-slab raft foundation formwork support structure, the steel bar braces are located on the side opposite to the beam side formwork side where the beam steel bars are supported.

Preferably, in the beam-slab-type raft-type foundation formwork support structure, in the steel skeleton of the foundation beam, two opposite steel bar diagonal braces are arranged in an "X" shape crossing.

After adopting the above technical solution, the utility model has the following beneficial effects compared with the prior art:

1. Due to the cancellation of the horizontal support system between the vertical and horizontal beams of the utility model, the workload of the formwork support is greatly reduced, thereby saving the engineering cost to a greater extent;

2. The beam-slab-type raft foundation formwork of the utility model adopts a lateral support structure, which provides a sufficient working surface for the concrete pouring work and guarantees the quality of the concrete pouring, which not only saves engineering materials, but also reduces labor force The investment has accelerated the speed of project construction and reduced input costs;

The utility model avoids the chaotic phenomenon of the working surface caused by the traditional support method in the construction process, greatly improves the safe and civilized construction level on site, and has high popularization value.

Description of drawings

Fig. 1 is a structural diagram of a beam-slab type raft foundation in the prior art;

Fig. 2 is a schematic diagram of a beam-slab type raft foundation template support structure of the utility model;

In the picture:

1-bottom plate; 2-stirrups; 3-steel bar skeleton; 4-reinforced diagonal bracing; 5-cushion; 6-bottom plate reinforcement; 7-formwork; Beam reinforcement.

detailed description

Below in conjunction with accompanying drawing and specific embodiment, the utility model is described further, to help understand the content of the utility model.

As shown in Figure 2, a beam-slab-type raft-type foundation support structure includes a steel frame 3, a beam side form 7 supported on the steel frame 3, and tension bolts 8 for fixing the beam side form 7, and these components are perpendicular to each other at intervals The steel bar 9 inserted into the cushion layer 5 constitutes the raft foundation formwork support system, and the steel bar frame 3 is formed by binding beam steel bars 10 and stirrup bars to construct the foundation beam; The upper end of the brace 4 is fixedly connected with the stirrup 2, and the bottom end of the brace 4 is fixedly connected with the steel bar 9 inserted into the cushion as the laterally inclined steel brace 4 of the beam reinforcement 10; the raft foundation is constructed to be located on the cushion 5 above the base plate 1, the base plate 1 is provided with a base plate steel bar 6, and the bottom end of the steel bar diagonal bracing 4 can also pass through the base plate 1 to the cushion layer 5 and the base plate steel bar 6 and/or the reinforcement bar 9 inserted into the cushion layer is fixed by electric welding, and the reinforcement bar 9 is Vertically insert the short reinforcing bars of the cushion; preferably, the spacing between the stirrups 2 for fixing the stirrup braces 4 is 900mm, and a reinforcing bar with a diameter of 14mm is set as the lateral support of the reinforcing bar skeleton 3, and the structure of the foundation beam In the reinforcement frame 3, relatively fixed reinforcement braces 4 can be arranged crosswise.

During the specific implementation, positioning is carried out according to the obtained control point coordinates, elevation, general layout plan, construction drawings, etc., and according to the requirements of the drawings and specifications, the beam reinforcement 10 and the stirrup 2 are bound to form the reinforcement skeleton 3, and at the same time, increase or pre-set Reserve the stirrup 2 for fixing the diagonal bracing 4 of the steel bar. After the reinforcement frame 3 of the foundation beam is tied up, a steel bar with a diameter of 14mm is added according to the 900mm interval of the stirrup 2 as the lateral reinforcement diagonal brace 4 of the reinforcement skeleton 3, and the upper end of the reinforcement diagonal brace 4 is fixedly connected to the stirrup 2. The bottom end of the brace 4 passes through the bottom plate 1 to the cushion layer 5 and is welded and fixed with the steel bar 6 of the bottom plate, and/or a short steel bar is arranged on the cushion layer 5, and the steel bar 9 inserted into the cushion layer is welded as the supporting point at the bottom of the reinforcement diagonal brace 4 fixed.

After setting the reinforcing bar diagonal brace 4, after leveling with the instrument, hang the horizontal line of the side formwork to determine the elevation and horizontal position of the formwork bottom; To construct the foundation beam, the formwork 7 is reinforced by pulling the bolts 8, and the supporting formwork 7 and the steel frame 3 are bound and fixed with lead wires. Wherein, described reinforcing bar diagonal brace 4 is positioned at the opposite side with this side of beam reinforcing bar 10 supporting formwork 7; Located in the steel frame 3, the opposite two steel bar diagonal braces 4 in the steel frame 3 can be arranged in an "X" shape to cross, so as to realize the horizontal and vertical reinforcement of the beam reinforcement, and there is no horizontal and horizontal support between the foundation beams. Reduce the occupation of the working surface and facilitate the concrete pouring construction.

Due to the cancellation of the horizontal and transverse support system between the longitudinal and horizontal beams in the utility model, the workload of the formwork support is greatly reduced, thereby saving the engineering cost to a greater extent; The pouring work provides a sufficient working surface and guarantees the quality of concrete pouring, which not only saves engineering materials, but also reduces labor input, speeds up project construction, and reduces input costs; the utility model makes the construction process avoid The chaotic phenomenon of the working surface caused by the traditional support method has been eliminated, and the level of safe and civilized construction on site has been greatly improved, which has a high promotion value.

The above is only a preferred embodiment of the utility model, it should be pointed out that for those of ordinary skill in the art, without departing from the principle of the utility model, some improvements and modifications can also be made, these improvements and Retouching should also be regarded as the scope of protection of the present utility model.

Claims (5)

1. a kind of beam and slab type raft foundation formwork support structure, including framework of steel reinforcement by beam steel and stirrup colligation and The side template and the split bolt of fixed side template installed on framework of steel reinforcement, the reinforcing bar structure with inserting bed course in interval vertical Into raft foundation formwork bracing system, it is characterised in that：Beam steel sets the reinforcing bar diagonal brace of lateral tilt.

2. beam and slab type raft foundation formwork support structure according to claim 1, it is characterised in that：Framework of steel reinforcement is provided with Stirrup for fixing reinforcing bar diagonal brace, reinforcing bar diagonal brace upper end is connected with the stirrup, and reinforcing bar diagonal brace bottom passes through the raft foundation The bottom plate being located above bed course being constructed is fixedly connected to bed course and with the baseplate reinforcing bar of bottom plate, and/or reinforcing bar diagonal brace bottom It is fixedly connected with the reinforcing bar for being inserted vertically into bed course.

3. beam and slab type raft foundation formwork support structure according to claim 2, it is characterised in that：It is described to be used to fix steel The stirrup of muscle diagonal brace sets up stirrup for interval 900mm's, and the reinforcement welding with a diameter 14mm of setting is as laterally disposed The reinforcing bar diagonal brace.

4. the beam and slab type raft foundation formwork support structure according to claim any one of 1-3, it is characterised in that：The steel Muscle diagonal brace is located at and the beam steel side that to install side template side relative.

5. beam and slab type raft foundation formwork support structure according to claim 4, it is characterised in that：In construction foundation beam In framework of steel reinforcement, two relative reinforcing bar diagonal braces are arranged in a crossed manner in " X " type.