CN216810617U

CN216810617U - Cantilever beam structure

Info

Publication number: CN216810617U
Application number: CN202123154946.8U
Authority: CN
Inventors: 杨健
Original assignee: Shanghai Famaqiang Construction Engineering Co ltd
Current assignee: Shanghai Famaqiang Construction Engineering Co ltd
Priority date: 2021-12-15
Filing date: 2021-12-15
Publication date: 2022-06-24
Anticipated expiration: 2031-12-15

Abstract

The utility model relates to an overhanging beam structure, including the overhanging beam body, the overhanging beam body includes anti concrete layer that splits, foam concrete inner core and framework of steel reinforcement, framework of steel reinforcement includes support rib one, support rib two and strengthening rib, framework of steel reinforcement is equipped with a plurality ofly along overhanging beam body width direction, be connected with the connecting piece between two adjacent frameworks of steel reinforcement, support rib two is including the linkage segment, the stretch-out section, the linkage end is fixed with the strengthening rib, the tip of support rib one is equipped with the embedment that is used for imbedding the wall body, the surface of inlaying foam concrete inner core is equipped with the combination recess. And a waterproof concrete layer is arranged on the outer surface of the anti-crack concrete layer. The surface of the cantilever beam body is not easy to crack due to expansion caused by heat and contraction caused by cold by arranging the anti-crack concrete layer and the foam concrete inner core; the strength of the cantilever beam body is improved by arranging the first supporting rib, the second supporting rib and the connecting rib; through setting up waterproof concrete layer, further prevent that the water from to the inside infiltration of cantilever beam body.

Description

Cantilever beam structure

Technical Field

The application relates to the technical field of building construction, in particular to a cantilever beam structure.

Background

A beam with one end buried or cast on the support and the other end extending out of the support is called an overhanging beam. And can be fixed, simple or free.

Cantilever beams are typically located outdoors for supporting outdoor building structures such as balconies.

In the prior art, the cantilever beam is directly located outdoors, so the cantilever beam needs to be corroded by rainwater, carbon dioxide and the like, meanwhile, the cantilever beam has large expansion and contraction amplitude due to large temperature change in some areas, cracks are easy to appear on the lower surface of the cantilever beam under the action of internal stress, rainwater permeates into the cracks, the cantilever beam is further corroded, and damage to the cantilever beam is aggravated.

SUMMERY OF THE UTILITY MODEL

In order to make the cantilever beam be difficult for because of the great thermal expansion and cold contraction production crackle of temperature variation, this application provides a cantilever beam structure.

The application provides a cantilever beam structure adopts following technical scheme:

the cantilever beam structure comprises a cantilever beam body, wherein the cantilever beam body comprises an anti-crack concrete layer, a foam concrete inner core and a steel reinforcement framework, the steel reinforcement framework is located in the foam concrete inner core, and the anti-crack concrete layer wraps the foam concrete inner core.

By adopting the technical scheme, the foam concrete inner core has a good heat preservation function, the temperature change speed of the cantilever beam body can be reduced, cracks are not prone to being generated due to the fact that the temperature change is too fast, the anti-cracking function of the anti-cracking concrete layer is good, and the surface of the cantilever beam body is not prone to cracking due to expansion with heat and contraction with cold.

Preferably, the steel reinforcement framework comprises a first supporting rib, a second supporting rib and a connecting rib, the first supporting rib and the second supporting rib are distributed at intervals along the vertical direction, and two ends of the connecting rib are fixedly connected with the first supporting rib and the second supporting rib respectively.

Through adopting above-mentioned technical scheme, the connecting rib can be strengthened supporting rib one, supporting rib two to improve the intensity of cantilever beam body.

Preferably, the steel reinforcement frameworks are provided with a plurality of connecting pieces in the width direction of the cantilever beam body, every two adjacent steel reinforcement frameworks are connected with one another through the connecting pieces, the connecting pieces are fixedly provided with four connecting ends, and the four connecting ends are fixedly connected with the first supporting ribs and the second supporting ribs on the steel reinforcement frameworks respectively.

Through adopting above-mentioned technical scheme, setting up of connecting piece can be linked into a whole with a plurality of steel reinforcement frameworks, makes the bulk strength of cantilever beam body improve.

Preferably, the first support rib is located above the second support rib, the second support rib comprises a connecting section and an extending section, the connecting section is fixedly connected with the wall, the extending section is used for extending out of the surface of the wall, and the end part of the connecting section inclines downwards and bends to form a support arc section.

Through adopting above-mentioned technical scheme, the setting of support arc section can disperse the effort of cantilever beam body transmission, makes the effort difficult to concentrate in one department to make the bearing capacity of cantilever beam body improve.

Preferably, the connecting section is fixed with a reinforcing rib, and two ends of the reinforcing rib are respectively and fixedly connected with the connecting section and the extending section.

Through adopting above-mentioned technical scheme, the setting of strengthening rib can share the effort that is being used in supporting the segmental arc, further improves the bearing capacity of cantilever beam body.

Preferably, the end part of the first support rib is provided with an embedded block for embedding into the wall body, and the diameter of the embedded block is larger than that of the first support rib.

Through adopting above-mentioned technical scheme, the embedding piece makes cantilever beam body and wall body's combination inseparabler, makes the difficult not hard up of being connected of cantilever beam body and wall body.

Preferably, the surface of the foam concrete inner core is provided with a combination groove, and the anti-crack concrete layer is fixed with the groove wall of the combination groove.

Through adopting above-mentioned technical scheme, the setting of combination recess, the area of contact of foam concrete inner core and anti-crack concrete layer that increases for the combination of foam concrete inner core and anti-crack concrete layer is inseparabler.

Preferably, the outer surface of the anti-crack concrete layer is provided with a waterproof concrete layer.

Through adopting above-mentioned technical scheme, waterproof concrete layer can further prevent that the water from permeating this internal to the cantilever beam.

In summary, the present application includes at least one of the following beneficial technical effects:

the surface of the cantilever beam body is not easy to crack due to expansion caused by heat and contraction caused by cold by arranging the anti-cracking concrete layer and the foam concrete inner core;

the strength of the cantilever beam body is improved by arranging the first support rib, the second support rib and the connecting rib;

through setting up waterproof concrete layer, further prevent that the water from to the inside infiltration of cantilever beam body.

Drawings

Fig. 1 is a perspective view of an embodiment of the present application.

Fig. 2 is a cross-sectional view of an embodiment of the present application.

Fig. 3 is a schematic structural diagram of a steel reinforcement cage according to an embodiment of the present application.

Description of reference numerals: 1. a cantilever beam body; 11. an anti-crack concrete layer; 111. a bonding section; 12. a foam concrete inner core; 121. a bonding groove; 13. a steel reinforcement cage; 131. a first support rib; 132. a second support rib; 1321. a connecting section; 1322. a protruding section; 1323. supporting the arc section; 1324. reinforcing ribs; 133. connecting ribs; 134. a connecting member; 135. a connecting end; 136. embedding a block; 14. and a waterproof concrete layer.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses cantilever beam structure. Referring to fig. 1 and 2, the cantilever beam structure includes a cantilever beam body 1, and the cantilever beam body 1 includes a foam concrete inner core 12 and a steel reinforcement framework 13. The steel reinforcement framework 13 is installed inside the foam concrete inner core 12 to be used for improving the strength of the foam concrete inner core 12, and the steel reinforcement framework 13 is also used for being connected with a wall body to fix the cantilever beam body 1 on the wall body.

The steel reinforcement framework 13 is provided with a plurality of along the width direction of the cantilever beam body 1, and the steel reinforcement framework 13 comprises a first support rib 131, a second support rib 132 and a connecting rib 133. The length direction of support rib one 131 sets up along the length direction of cantilever beam body 1 top surface, the length direction of support rib two 132 sets up along the length direction of cantilever beam body 1 bottom surface, the tip slope that the wall body was kept away from to support rib two 132 sets up, support rib one 131 is located support rib two 132 directly over, vertical direction is followed to the length direction of connecting rib 133, rib one 131 is supported respectively at the both ends of connecting rib 133, support rib two 132 fixed connection, connecting rib 133 is equipped with a plurality ofly along the length direction interval of support rib one 131.

Referring to fig. 2 and 3, a connecting piece 134 is arranged between two adjacent steel reinforcement cages 13, the connecting piece 134 is in an X shape, and four connecting ends 135 are fixedly connected to the top of the connecting piece 134, wherein the heights of the two connecting ends 135 are the same as the heights of the first support ribs 131 and are respectively fixedly connected with the first support ribs 131; the height of the two other high support ribs 132 of the two connecting ends 135 is the same and is respectively fixedly connected with the two adjacent support ribs 132, and a plurality of connecting pieces 134 are also arranged along the length direction of the first support ribs 131.

The second support rib 132 comprises a connecting section 1321 and an extending section 1322, the connecting section 1321 is fixedly connected with the extending section 1322, the length direction of the extending section 1322 is along the length direction of the cantilever beam body 1, the extending section 1322 is used for extending out of the surface of a wall body, the end part of the connecting section 1321 is bent downwards to form a support arc section 1323, the lower end of the connecting section 1321 is used for being fixedly connected with the wall body, the support arc section 1323 can disperse the pressure of the second support rib 132, which is applied to the cantilever beam body 1, so that the second support rib 132 is not easy to bend and deform due to concentration of acting force. The connecting section 1321 is fixedly connected with a reinforcing rib 1324, and two ends of the reinforcing rib 1324 are fixedly connected with the connecting section 1321 and the extending section 1322 respectively. The setting of strengthening rib 1324 can share the pressure that comes from cantilever beam body 1 that the linkage segment 1321 received, reduces the atress that supports segmental arc 1323, makes support segmental arc 1323 difficult deformation.

The end part of the first support rib 131 extending out of the cantilever beam body 1 is fixedly connected with an embedded block 136, the diameter of the embedded block 136 is larger than that of the first support rib 131, the embedded block 136 can be fixedly embedded in a wall body in a concrete pouring mode, and the first support rib 131 is further fixed to increase the connection strength of the wall body and the cantilever beam body 1.

The outer side wall of the foam concrete inner core 12 is uniformly coated with an anti-crack concrete layer 11, the surface of the foam concrete inner core 12 is provided with a plurality of combining grooves 121, the surface of the anti-crack concrete layer 11 facing the foam concrete inner core 12 is fixed with a combining part 111, and the combining part 111 is fixedly connected with the groove wall of the combining groove 121. The arrangement of the combination groove 121 increases the contact area between the anti-crack concrete layer 11 and the foam concrete inner core 12, so that the combination of the anti-crack concrete layer 11 and the foam concrete inner core 12 is more stable. The outer surface of the crack-resistant concrete layer 11 is also coated with a waterproof concrete layer 14. The waterproof concrete layer 14 can increase the waterproof body permeability of the cantilever beam body 1, so that water is not easy to permeate into the cantilever beam body 1.

The implementation principle of the cantilever beam structure in the embodiment of the application is as follows: through setting up foam concrete inner core 12, make cantilever beam body 1 have better heat preservation ability, make the speed of the temperature variation of cantilever beam body 1 slow down, reduce the range of expend with heat and contract with cold of cantilever beam body 1, make cantilever beam body 1 be difficult for because of expend with heat and contract with cold range too big production crackle, anti setting up of anti concrete layer 11 in addition, make the difficult fracture because of expend with heat and contract with cold in surface of cantilever beam body 1.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a cantilever beam structure, includes cantilever beam body (1), its characterized in that: the cantilever beam body (1) comprises an anti-crack concrete layer (11), a foam concrete inner core (12) and a steel reinforcement framework (13), wherein the steel reinforcement framework (13) is located in the foam concrete inner core (12), and the foam concrete inner core (12) is wrapped by the anti-crack concrete layer (11).

2. The cantilever beam structure according to claim 1, wherein: the steel bar framework (13) comprises a first supporting rib (131), a second supporting rib (132) and connecting ribs (133), wherein the first supporting rib (131) and the second supporting rib (132) are distributed at intervals along the vertical direction, and two ends of the connecting ribs (133) are fixedly connected with the first supporting rib (131) and the second supporting rib (132) respectively.

3. The cantilever beam structure according to claim 2, wherein: reinforcing bar skeleton (13) are equipped with a plurality ofly, adjacent two along cantilever beam body (1) width direction be connected with connecting piece (134) between reinforcing bar skeleton (13), connecting piece (134) have set firmly four link (135), four link (135) respectively with adjacent two support rib one (131), support rib two (132) fixed connection on reinforcing bar skeleton (13).

4. The cantilever beam structure according to claim 2, wherein: the support rib I (131) is located support rib II (132) top, support rib II (132) include linkage segment (1321), stretch out section (1322), linkage segment (1321) are used for with wall body fixed connection, stretch out section (1322) and be used for stretching out the surface of wall body, the tip downward sloping of linkage segment (1321) is crooked and is formed support segmental arc (1323).

5. The cantilever beam structure according to claim 4, wherein: the connecting section (1321) is fixed with a reinforcing rib (1324), and two ends of the reinforcing rib (1324) are fixedly connected with the connecting section (1321) and the extending section (1322) respectively.

6. The cantilever beam structure according to claim 4, wherein: the end part of the first support rib (131) is provided with an embedded block (136) used for being embedded into a wall body, and the diameter of the embedded block (136) is larger than that of the first support rib (131).

7. The cantilever beam structure according to claim 1, wherein: and a combination groove (121) is formed in the surface of the foam concrete inner core (12), and the anti-crack concrete layer (11) is fixed to the wall of the combination groove (121).

8. The cantilever beam structure according to claim 1, wherein: and a waterproof concrete layer (14) is arranged on the outer surface of the anti-cracking concrete layer (11).