CN106351403A - A rice-shaped fabric reinforcement structure for floor slabs - Google Patents

Abstract

The invention provides a rice-shaped reinforcement structure for floor slabs. The rice-shaped reinforcement structure is mainly used on rectangular floors surrounded by beams. The surroundings of the lower reinforcement mesh penetrate into the reinforcement body of the beam, and the lower reinforcement mesh includes a cross-shaped reinforcement mesh and a plate angle reinforcement mesh. The upper layer of reinforcement mesh is arranged above the lower layer of reinforcement mesh, and the surroundings of the upper layer of reinforcement mesh are connected with the upper side of the reinforcement body of the beam. The upper reinforcement mesh includes the reinforcement mesh in the beam and the reinforcement mesh in the corner of the beam. The present invention not only guarantees the quality of the reinforcement through the method of reinforcing the upper and lower layers of the rice-shaped mesh, but also fully exerts the performance of each reinforcing mesh, and can also save materials. The invention can be prefabricated in a factory first, and then constructed on site, which is convenient for site construction and improves construction efficiency and engineering quality. The upper and lower diagonally connected brackets make the upper steel mesh and the lower steel mesh integrated into a whole, which can not only eliminate the cracks at the four corners of the floor, but also improve the bearing capacity of the floor and the rigidity of the floor structure.

Description

A rice-shaped fabric reinforcement structure for floor slabs

technical field

The invention relates to the field of construction, in particular to a rice-shaped reinforcement structure used on a rectangular floor with beams all around.

Background technique

In the current reinforced concrete civil floor, the reinforcement of the rectangular floor slab with beams around is set according to the requirements of conventional regulations, that is, the vertical and horizontal staggered steel mesh parallel to or perpendicular to the surrounding beams is used as the lower steel mesh to play the main bearing capacity. role. In addition, negative moment tendons vertically extending to the floor are arranged on the upper part of the steel bar of the beam, and distribution tendons are vertically connected to the negative moment tendons. The above-mentioned reinforcement structure has the following problems in engineering practice: (1) one or more horizontal cracks perpendicular to the corner bisector often appear at the four corners of the poured floor slab; Due to the positioning requirements of the cover reinforcement, it is easy to sink due to the operation during the actual reinforcement operation, and under the negative bending moment of the floor, it is easy to appear cracks parallel to the beam beside the beam; (3) When the span of the floor slab When the distance is large, the formwork in the middle of the slab needs to be arched upwards when the formwork is supported, so that the bending moment in the middle of the slab is the largest, but this also causes the thickness of the middle of the slab to be smaller; For reinforcement, the actual bending moments at the four corners of the floor slab are very small, and the effect of the upper layer of reinforcement is not fully exerted, resulting in a large surplus of reinforcement, which fails to achieve the effect of making the best use of everything.

Contents of the invention

In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide a rice-shaped reinforcement structure that avoids cracks at the four corners of the floor.

The technical solution of the present invention lies in: a rice-shaped reinforcement structure for floor slabs, the rice-shaped reinforcement structure is mainly used on rectangular floors surrounded by beams. The rice-shaped reinforcement structure comprises a lower layer of reinforcement mesh, an upper layer of reinforcement mesh and upper and lower diagonal connection brackets connected between the upper layer and the lower layer of reinforcement mesh.

(1) The four sides of the lower reinforcement mesh penetrate into the reinforcement body of the beam, and the lower reinforcement mesh includes a cross-shaped reinforcement mesh and a plate angle reinforcement mesh.

The cross-shaped reinforcement mesh is a reinforcement mesh composed of several steel bars parallel to or perpendicular to the four sides of the rectangular floor slab, and the overall shape of the reinforcement mesh is cross-shaped; the cross-shaped reinforcement mesh is arranged in the middle of the rectangular floor slab area, and its surroundings penetrate into the reinforcement body of the beam.

The plate angle reinforcement mesh includes several plate angle main reinforcements parallel to the plate angle diagonal line and several plate angle auxiliary reinforcements perpendicular to the plate angle diagonal line, and the plate angle main reinforcements are interlaced with the plate angle auxiliary reinforcement; The plate angle steel mesh is arranged at the four corners of the rectangular floor slab, and the four sides of the plate angle steel mesh are respectively lapped on the cross-shaped steel mesh or penetrated into the reinforcement body of the beam.

(2) The upper layer of reinforcement mesh is arranged above the lower layer of reinforcement mesh, and the surroundings of the upper layer of reinforcement mesh are connected to the upper side of the beam's reinforcement body; the upper layer of reinforcement mesh includes beam middle reinforcement mesh and beam corner reinforcement mesh .

The reinforcement mesh in the beam includes the main reinforcement in the beam vertically connected with the reinforcement body of the corresponding side beam and the auxiliary reinforcement in the beam vertically connected to the lower side of the main reinforcement in the beam.

The beam angle reinforcement mesh includes several beam angle main reinforcements parallel to the beam angle diagonal lines and several beam angle auxiliary reinforcements perpendicular to the beam angle diagonal lines, and the beam angle main reinforcements and beam angle auxiliary reinforcements are interlacedly connected; The beam angle steel mesh is arranged at the four corners of the rectangular floor, and the four sides of the beam angle steel mesh are respectively on the cross-shaped steel mesh or penetrated into the reinforcement body of the beam.

(3) The upper connection end of the upper and lower diagonal connecting bracket 3 is connected to the inner end of the main reinforcement in the beam of the upper layer of reinforcement mesh or the inner end of the main reinforcement of the beam angle, and the lower connection end of the upper and lower diagonal connection bracket is connected to the inner end of the lower reinforcement mesh. The inner end of the main reinforcement of the plate angle reinforcement or the additional flat beam reinforcement and angle bisector reinforcement on the lower reinforcement mesh.

Preferably, the secondary reinforcement in the beam is connected in a staggered manner to the lower side of the main reinforcement in the beam.

Preferably, the auxiliary beam corner reinforcements are staggeredly connected to the lower side of the beam corner main reinforcements.

Preferably, the upper and lower diagonal connecting brackets include an upper connection end, a lower connection end and an oblique link, the upper connection end and the lower connection end are respectively arranged at the upper and lower ends of the oblique connection rod, and the upper connection end and the lower connection end Connecting rings are respectively arranged on the ends.

Preferably, the connecting ring is also equipped with a wedging block.

Preferably, transverse connecting ribs are also arranged between two adjacent upper and lower diagonal connecting brackets.

Preferably, the connecting ring is a long ring or two short rings at the front and back, the cross section of the connecting ring is in the shape of an oblong hole, and one side of the connecting ring is fixedly connected with the corresponding connecting ends of the upper and lower diagonal connecting brackets, The inner cavity on the other side of the connecting ring is used for inserting the main reinforcement and the wedge block to be connected. The main reinforcement to be connected includes a plate corner main reinforcement and a beam corner main reinforcement.

Preferably, the upper and lower diagonal connecting brackets further include an oblique support frame, the oblique support frame includes a transverse connecting rib, a bottom connecting rib and at least two oblique ribs, and the transverse connecting rib is connected to the upper end of the oblique rib, The lower ends of the oblique ribs are connected to the bottom connecting ribs to form a supporting frame body, and the transverse connecting ribs are connected to the upper and lower diagonal connecting brackets.

The advantage of the present invention is that: the present invention not only guarantees the quality of the reinforcement through the reinforcement of the upper and lower layers, but also fully exerts the performance of each reinforcement mesh, and can also save materials. Various steel meshes in the present invention can be prefabricated in factories first, and then constructed on site, which makes the site construction convenient, the workload of binding is small, and it is beneficial to improve construction efficiency and project quality. The upper and lower diagonal connecting brackets of the present invention make the upper steel mesh and the lower steel mesh connected into a whole, increase the bending moment in the middle of the floor, and can not only eliminate the cracks at the four corners of the floor, but also improve the bearing capacity of the floor and the rigidity of the floor structure .

Description of drawings

Fig. 1 is a top view structural diagram of the P-shaped reinforcement structure of the floor slab in the embodiment.

Fig. 2 is a cross-sectional structural schematic diagram of the P-shaped reinforcement structure of the floor slab in the embodiment.

Fig. 3 is a top view structural schematic diagram of the lower reinforcement mesh in the embodiment.

Fig. 4 is a top view structural schematic diagram of the upper reinforcement mesh in the embodiment.

Fig. 5 is a schematic diagram of the use state of the upper and lower diagonally connecting brackets in the embodiment.

In the figure: 1—lower reinforcement mesh, 2—upper reinforcement mesh, 3—upper and lower diagonal connection bracket, 3.1—upper connection end, 3.2—lower connection end, 3.3—oblique connecting rod, 3.4—wedge block, 3.5—transverse direction Connecting bar, 3.6—connecting ring, 3.7—bottom connecting bar, 3.8—oblique support bar; 4—beam reinforcement body, 5—floor formwork, 6—beam formwork, 7—cross-shaped steel mesh, 8—plate angle steel mesh , 8.1—main reinforcement of plate angle, 8.2—auxiliary reinforcement of plate angle; 9—reinforcement mesh in beam, 9.1—main reinforcement in beam, 9.2—auxiliary reinforcement in beam; 10—reinforcing mesh of beam angle, 10.1—main reinforcement of beam angle, 10.2—beam Corner auxiliary reinforcement; 11—leave a blank in the middle of the upper reinforcement mesh.

detailed description

In order to make the technical scheme and technical effect of the present invention more obvious and easy to understand, the following will be described in detail in conjunction with the accompanying drawings.

The present invention combines experimental and practical experience, according to the different forces of different locations of the floor, configures different steel bars, that is, the middle part is strengthened, the four corners are reduced, and the role of the upper layer is played. The performance of the material is used to save materials; at the same time, the invention can achieve factory prefabrication processing (welding) into a net, which reduces the binding amount of the on-site reinforcement personnel, not only reduces labor, but also improves construction efficiency and engineering quality. Improve the positioning reliability of the beam cover reinforcement (beam middle reinforcement mesh), and ensure that the beam cover reinforcement is in an accurate and effective position.

As shown in Fig. 1 and Fig. 2, the rice-shaped reinforcement structure of the present invention is mainly used on a rectangular floor with beams all around. The rice-shaped reinforcement structure includes a lower steel mesh 1, an upper steel mesh 2, and upper and lower diagonal connecting brackets 3 connected between the upper and lower steel mesh.

(1) As shown in FIG. 3 , the surroundings of the lower reinforcement mesh 1 penetrate into the reinforcement body 4 of the beam, and the lower reinforcement mesh includes a cross-shaped reinforcement mesh 7 and a plate angle reinforcement mesh 8 .

The cross-shaped steel mesh 7 button is configured according to conventional regulations. The cross-shaped steel mesh 7 is a steel mesh composed of several steel bars parallel to or perpendicular to the four sides of the rectangular floor slab, and the overall shape of the steel mesh is cross-shaped. ; The cross-shaped steel mesh is arranged in the middle area of the rectangular floor slab, and its surroundings penetrate into the reinforcement body of the beam.

The panel corner reinforcement mesh 8 includes several panel corner main ribs 8.1 parallel to the panel corner diagonal line and several panel corner secondary ribs 8.2 perpendicular to the panel corner diagonal line, and the panel corner main ribs and panel corner secondary ribs are staggered connected; the plate angle steel mesh is arranged at the four corners of the rectangular floor, and the four sides of the plate angle steel mesh are respectively lapped on the cross-shaped steel mesh or penetrated into the reinforcement body of the beam.

(2) As shown in Figure 4, the upper layer of reinforcement mesh 2 is arranged above the lower layer of reinforcement mesh, and the surroundings of the upper layer of reinforcement mesh are connected with the upper side of the reinforcement body of the beam; the upper layer of reinforcement mesh 2 includes a beam Middle reinforcement mesh 9 and beam angle reinforcement mesh 10.

The reinforcement mesh 9 in the beam includes the main reinforcement 9.1 in the beam vertically connected with the reinforcement body of the corresponding side beam and the auxiliary reinforcement 9.2 in the beam vertically connected to the lower side of the main reinforcement in the beam; The lower side of the middle main rib 9.3.

The beam angle reinforced mesh 10 includes several beam angle main reinforcements 10.1 parallel to the beam angle diagonal lines and several beam angle auxiliary reinforcements 10.2 perpendicular to the beam angle diagonal lines, and the beam angle main reinforcements and beam angle auxiliary reinforcements are staggered Connection; the beam angle auxiliary reinforcement 10.2 is connected in a staggered manner to the underside of the beam angle main reinforcement 10.1. The beam angle steel mesh is arranged at the four corners of the rectangular floor, and the four sides of the beam angle steel mesh are respectively on the cross-shaped steel mesh or penetrated into the reinforcement body of the beam.

In this embodiment, the middle of the upper layer of steel mesh is left blank. In other embodiments, the middle of the upper layer of steel mesh may not be left blank, that is, the steel mesh 9 in the surrounding beams is correspondingly extended and connected to form a cross-shaped steel mesh. .

(3) As shown in Figure 1 and Figure 5, the upper connection end of the upper and lower diagonal connecting bracket 3 is connected to the inner end of the main reinforcement 9.1 of the beam of the upper steel mesh or the inner end 10.1 of the main reinforcement of the beam angle, and the upper and lower diagonal connection The lower connecting end of the support 3 is connected to the main reinforcement 8.1 inner end of the plate angle reinforcement of the lower reinforcement mesh or the additional flat beam reinforcement and angle bisector reinforcement on the lower reinforcement mesh 1.

As shown in Figure 5, the upper and lower diagonal connecting brackets 3 include an upper connection end 3.1, a lower connection end 3.2 and an oblique connecting rod 3.3, and the upper and lower connecting ends are respectively arranged on the upper and lower ends of the oblique connecting rod. Connecting rings 3.6 are respectively arranged on the upper connecting end and the lower connecting end. The connecting ring is also equipped with a wedge block 3.4. Transverse connecting ribs 3.5 are also arranged between two adjacent upper and lower diagonal connecting brackets.

In this embodiment, the connecting ring is two short rings at the front and back, the cross section of the connecting ring is in the shape of an oblong hole, and the inner cavity on one side of the connecting ring is fixedly connected with the corresponding connecting ends of the upper and lower diagonal connecting brackets, The inner cavity on the other side of the connecting ring is used for inserting the main reinforcement and the wedge block to be connected. The main reinforcement to be connected includes the main reinforcement 9.1 in the beam or the main reinforcement 10.1 at the beam angle;

In this embodiment, the upper and lower diagonal connecting brackets also include a diagonal support frame, the diagonal support frame includes a transverse connecting rib 3.5, a bottom connecting rib 3.7 and at least two oblique supporting ribs 3.8, and the transverse connecting rib is connected to The upper end of the oblique ribs and the lower end of the oblique ribs are connected to the bottom connecting ribs to form a supporting frame body, and the transverse connecting ribs are connected to the upper and lower diagonal connecting brackets.

The mesh of the present invention can be prefabricated and processed in a factory to form a joint assembly, reduce on-site operations, save labor, reduce material consumption, and save materials. At the same time, it can improve on-site construction efficiency and save time. Class floor design and construction.

The above descriptions are only preferred embodiments of the present invention, and all equivalent changes and modifications made according to the scope of the patent application of the present invention shall fall within the scope of the present invention.

Claims (8)

1. a kind of M shape cloth muscle structure of floor is it is characterised in that this M shape cloth muscle structure includes lower floor's bar-mat reinforcement, upper strata Bar-mat reinforcement and be connected between upper and lower layer bar-mat reinforcement up and down diagonally link support；

(1) surrounding of described lower floor bar-mat reinforcement penetrates in the reinforcing bar body of beam, described lower floor bar-mat reinforcement include cross bar-mat reinforcement and Plate angle bar-mat reinforcement；

Described cross bar-mat reinforcement is the bar-mat reinforcement constituting that interlocked by some reinforcing bars parallel or vertical with rectangle floor four side, And the monnolithic case profile of described bar-mat reinforcement is in cross；Described cross bar-mat reinforcement is arranged in the central region of rectangle floor, And its surrounding penetrates in the reinforcing bar body of beam；

Described plate angle bar-mat reinforcement is included some plate angle cage bars parallel with plate angle diagonal and some and is hung down with plate angle diagonal Straight plate angle pair muscle, described plate angle cage bar is interlocked with plate angle pair muscle and is connected；Described plate angle steel muscle network arrangements are the four of rectangle floor Individual corner, and the surrounding of described plate angle bar-mat reinforcement is overlapped on respectively on cross bar-mat reinforcement or penetrates in the reinforcing bar body of beam；

(2) described top mat is arranged in the top of lower floor's bar-mat reinforcement, and the reinforcing bar of the surrounding of described top mat and beam Body upper lateral part is connected；Described top mat includes bar-mat reinforcement and beam angle bar-mat reinforcement in beam；

In described beam, bar-mat reinforcement includes and cage bar in the reinforcing bar body phase of corresponding curb girder mutually beam connected vertically and be vertically connected on beam Secondary muscle in beam on the downside of middle cage bar；

Described beam angle bar-mat reinforcement is included some beam angle cage bars parallel with beam angle diagonal and some and is hung down with beam angle diagonal Straight beam angle pair muscle, described beam angle cage bar is cross-linked with beam angle pair muscle；Described beam angle steel muscle network arrangements are the four of rectangle floor Individual corner, and the surrounding of described beam angle bar-mat reinforcement respectively on cross bar-mat reinforcement or penetrate beam reinforcing bar body in；

(3) the described upper connection end diagonally linking support 3 up and down is connected to cage bar the inner or Liang Jiao master in the beam of top mat Muscle is inner, the described lower connection end diagonally linking support up and down be connected to the plate angle steel muscle of lower floor's bar-mat reinforcement cage bar inner or Additional flat-topped ridge reinforcing bar and angular bisector reinforcing bar on lower floor's bar-mat reinforcement.

2. floor according to claim 1 M shape cloth muscle structure it is characterised in that: in described beam, secondary muscle interlocks and is connected The downside of cage bar in beam.

3. floor according to claim 1 M shape cloth muscle structure it is characterised in that: described beam angle pair muscle is cross-linked Downside in beam angle cage bar.

4. floor according to claim 1 M shape cloth muscle structure it is characterised in that: described up and down diagonally link support Including upper connection end, lower connection end and diagonal control arm, described upper connection end and lower connection end are separately positioned on the upper and lower side of diagonal control arm, It is respectively arranged with connection ring on described upper connection end and lower connection end.

5. floor according to claim 4 M shape cloth muscle structure it is characterised in that: described connection ring is also equipped with wedging Block.

6. floor according to claim 4 M shape cloth muscle structure it is characterised in that: adjacent about two diagonally connect It is additionally provided with lateral connection muscle between knot support.

7. floor according to claim 4 M shape cloth muscle structure it is characterised in that: described connection ring be long ring or front Two becate afterwards, the cross section of described connection ring is in slotted hole shape, the side inner chamber of described connection ring with diagonally link support up and down Corresponding connection end be fixedly connected, the opposite side inner chamber of described connection ring is used for grafting cage bar to be connected and wedge block.

8. floor according to claim 4 M shape cloth muscle structure it is characterised in that: described up and down diagonally link support The described support that diagonally links up and down also includes bearing diagonal frame, and described bearing diagonal frame includes lateral connection muscle, bottom connects muscle and at least Two are tiltedly propped up muscle, and described lateral connection muscle is connected to the upper end of a tiltedly muscle, and the lower end of described oblique muscle is connected to bottom and connects on muscle, Thus forming carriage support body, described lateral connection muscle with up and down diagonally link support be connected.