CN211114316U

CN211114316U - Large-span hollow composite floor slab with truss reinforcing steel bars

Info

Publication number: CN211114316U
Application number: CN201921308167.9U
Authority: CN
Inventors: 李兰涛
Original assignee: Shandong Guangfa Building Materials Products Co ltd
Current assignee: Shandong Guangfa Building Materials Products Co ltd
Priority date: 2019-08-13
Filing date: 2019-08-13
Publication date: 2020-07-28
Anticipated expiration: 2029-08-13

Abstract

The utility model relates to a hollow coincide floor technical field specifically is a take hollow coincide floor of large-span of truss reinforcing bar, including precast concrete layer, precast concrete layer's last surface welding has the cystosepiment, precast concrete layer's last surface welding has the truss reinforcing bar to face the position department welding of nearly cystosepiment, the layer of building has been pour to precast concrete layer's top, precast concrete layer's inside welding has vertical strengthening rib, precast concrete layer's last surface welding has the cystosepiment to close on the position department welding of vertical strengthening rib to have horizontal strengthening rib, horizontal truss groove has transversely been seted up to precast concrete layer's upper surface. The utility model discloses take hollow coincide floor of large-span of truss reinforcing bar, the inside steel of device adds thick thickening processing, and the casting layer adds thick design, and vertical strengthening rib is more with setting up of horizontal strengthening rib, and the hollow department of floor is porous polyphenyl foam material, and the truss is welded connection, and the interval of truss is less.

Description

Large-span hollow composite floor slab with truss reinforcing steel bars

Technical Field

The utility model relates to a hollow coincide floor technical field specifically is a hollow coincide floor of large-span of taking truss reinforcing bar.

Background

The composite floor slab is an assembled integral floor slab formed by laminating prefabricated slabs and cast-in-place reinforced concrete layers, has good integrity, flat upper and lower surfaces and is convenient for finishing a finish coat, and is suitable for high-rise buildings and large-bay buildings with higher integral rigidity requirements.

The chinese patent discloses a take hollow coincide floor of large-span of truss reinforcing bar (No. CN208396111U of granting), this patent technique can be used for the construction of the hollow floor of large-span, but, the hollow coincide floor of large-span of the area truss reinforcing bar on the existing market, the structure is comparatively frivolous, the fastness is lower, most erection joint muscle is less, be unfavorable for the installation of floor to use, the hollow department of most floors is the foam material, play the syllable-dividing function of heat preservation that can not be fine, most truss is the steel wire tying connection, work efficiency is lower, the fastness is lower, can not satisfy the floor structure of high strength, most truss's interval is great, intensity is lower. Accordingly, a person skilled in the art provides a long-span hollow composite floor slab with truss reinforcing bars to solve the problems set forth in the above background art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a take hollow coincide floor of large-span of truss reinforcing bar to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a take hollow coincide floor of large-span of truss reinforcing bar, includes precast concrete layer, precast concrete layer's last surface welding has the cystosepiment, precast concrete layer's last surface welding has the truss reinforcing bar in the position department welding that faces nearly cystosepiment, the layer of pouring has been pour to precast concrete layer's top, precast concrete layer's inside welding has vertical strengthening rib, precast concrete layer's last surface welding has the cystosepiment to close on the position department welding of vertical strengthening rib to have horizontal strengthening rib.

As a further aspect of the present invention: horizontal truss groove has transversely been seted up to precast concrete layer's upper surface, vertical truss groove has vertically been seted up to precast concrete layer's upper surface, the horizontal welding of the upper surface on the inside precast concrete layer of truss reinforcing bar has second U type reinforcing bar, the vertical welding of the upper surface on the inside precast concrete layer of truss reinforcing bar has first U type reinforcing bar, the upper end one side through connection of first U type reinforcing bar has the vertical pole, upper end one side through connection of second U type reinforcing bar has the horizontal pole.

As a further aspect of the present invention: the longitudinal reinforcing ribs and the transverse reinforcing ribs are in cross welding connection, the longitudinal reinforcing ribs and the transverse reinforcing ribs are poured inside the precast concrete layer, and the truss reinforcing steel bars are members made of porous polyphenyl foam materials.

As a further aspect of the present invention: the width of the second U-shaped steel bar is smaller than the opening width of the transverse truss groove, and the width of the first U-shaped steel bar is smaller than the opening width of the longitudinal truss groove.

As a further aspect of the present invention: the height that highly is greater than the cystosepiment of first U type reinforcing bar and second U type reinforcing bar, the lower surface of first U type reinforcing bar and second U type reinforcing bar all runs through precast concrete layer and vertical strengthening rib and horizontal strengthening rib welded connection.

As a further aspect of the present invention: the upper end front surface both sides of first U type reinforcing bar all through connection have the vertical pole, the upper end front surface both sides of second U type reinforcing bar all through connection have the horizontal pole, second U type reinforcing bar sets up one every thirty centimetres, first U type reinforcing bar is located the upper surface on precast concrete layer and transversely is separated by sixty centimetres, the upper surface that second U type reinforcing bar is located precast concrete layer vertically is separated by one hundred twenty centimetres.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses take hollow coincide floor of large-span of truss reinforcing bar, the inside steel of device adds thick thickening processing, the casting layer designs with thickening, the structure is comparatively firm, and the fastness is higher, the utility model discloses setting up of vertical strengthening rib and horizontal strengthening rib is more, increase the quantity of erection joint muscle, be favorable to the installation of floor to use, the hollow department of floor is porous polyphenyl foam material, it is higher to keep warm thermal-insulated effect, can be fine play the sound-proof function of heat preservation, and inseparable with the connection of pouring the layer, the shrinkage is low, increase the durable effect of floor, the truss of this device is welded connection, the fastness is higher, can satisfy the floor operation requirement of high strength, the interval of truss is less, increase the intensity of device.

Drawings

FIG. 1 is a schematic structural view of a long-span hollow composite floor slab with truss steel bars;

FIG. 2 is a schematic view of a connection structure of a precast concrete layer and truss steel bars in a long-span hollow composite floor slab with truss steel bars;

FIG. 3 is a schematic structural view of a precast concrete layer in a long-span hollow composite floor slab with truss steel bars;

fig. 4 is a schematic structural view of truss reinforcement in a long-span hollow composite floor slab with truss reinforcement.

In the figure: 1. prefabricating a concrete layer; 2. pouring a layer; 3. a foam board; 4. truss reinforcement; 5. longitudinal reinforcing ribs; 6. transverse reinforcing ribs; 7. a transverse truss channel; 8. a longitudinal truss channel; 9. a first U-shaped steel bar; 10. a second U-shaped steel bar; 11. A cross bar; 12. a longitudinal bar.

Detailed Description

Referring to fig. 1 to 4, in an embodiment of the present invention, a large-span hollow composite floor slab with truss reinforcement comprises a precast concrete layer 1, a foam board 3 is welded on an upper surface of the precast concrete layer 1, a truss reinforcement 4 is welded on an upper surface of the precast concrete layer 1 at a position close to the foam board 3, a casting layer 2 is cast on the precast concrete layer 1, a longitudinal reinforcement 5 is welded inside the precast concrete layer 1, a transverse reinforcement 6 is welded on an upper surface of the precast concrete layer 1 at a position where the foam board 3 is close to the longitudinal reinforcement 5, the longitudinal reinforcement 5 is cross-welded with the transverse reinforcement 6, the longitudinal reinforcement 5 and the transverse reinforcement 6 are cast inside the precast concrete layer 1, the truss reinforcement 4 is a porous polyphenyl foam member, the precast concrete layer 1 is fixed on a wall body installed at the height through the longitudinal reinforcement 5 and the transverse reinforcement 6, the reinforcing ribs are tied and fixed, then the pouring layer 2 is poured above the foam board 3 and the truss reinforcing steel bars 4, metal inside the prefabricated concrete layer 1 protruding out of the longitudinal reinforcing ribs 5 and the transverse reinforcing ribs 6 is poured inside the pouring layer 2, and after the pouring layer 2 is solidified, the formwork is removed.

In fig. 2, 3, 4: the upper surface of a precast concrete layer 1 is transversely provided with a transverse truss groove 7, the upper surface of the precast concrete layer 1 is longitudinally provided with a longitudinal truss groove 8, the upper surface of an inner precast concrete layer 1 of a truss reinforcing steel bar 4 is transversely welded with a second U-shaped reinforcing steel bar 10, the upper surface of the inner precast concrete layer 1 of the truss reinforcing steel bar 4 is longitudinally welded with a first U-shaped reinforcing steel bar 9, one side of the upper end of the first U-shaped reinforcing steel bar 9 is in through connection with a longitudinal rod 12, one side of the upper end of the second U-shaped reinforcing steel bar 10 is in through connection with a transverse rod 11, the width of the second U-shaped reinforcing steel bar 10 is smaller than the opening width of the transverse truss groove 7, the width of the first U-shaped reinforcing steel bar 9 is smaller than the opening width of the longitudinal truss groove 8, the heights of the first U-shaped reinforcing steel bar 9 and the second U-shaped reinforcing steel bar 10 are larger than the height of a foam board 3, the lower surfaces of the first U-shaped reinforcing steel bar 9 and, the two sides of the front surface of the upper end of a first U-shaped steel bar 9 are respectively connected with a longitudinal rod 12 in a penetrating way, the two sides of the front surface of the upper end of a second U-shaped steel bar 10 are respectively connected with a transverse rod 11 in a penetrating way, the second U-shaped steel bar 10 is arranged every thirty centimeters, the first U-shaped steel bar 9 is arranged on the upper surface of a precast concrete layer 1 at a transverse interval of sixty centimeters, the second U-shaped steel bar 10 is arranged on the upper surface of the precast concrete layer 1 at a longitudinal interval of one hundred twenty centimeters, the lower surfaces of the first U-shaped steel bar 9 and the second U-shaped steel bar 10 are welded with the upper surfaces of a longitudinal reinforcing rib 5 and a transverse reinforcing rib 6 which are welded during processing and manufacturing, the transverse rods 11 are inserted into the inner parts of the second U-shaped steel bar 10 in a penetrating way, the joints are welded, the longitudinal rods 12 are inserted into the inner parts of the first U-shaped steel bar 9 in a penetrating way, the joints are welded, the first U shaped steel muscle 9 of this device and second U shaped steel muscle 10 are thickening material, durable, increase the life of device.

The utility model discloses a theory of operation is: firstly, the precast concrete layer 1 is fixed on a wall body with the height through the longitudinal reinforcing ribs 5 and the transverse reinforcing ribs 6, the precast concrete layer is fixed through the reinforcing ribs in a binding mode, then the pouring layer 2 is poured above the foam board 3 and the truss reinforcing steel bars 4, metal protruding out of the precast concrete layer 1 of the longitudinal reinforcing ribs 5 and the transverse reinforcing ribs 6 is poured inside the pouring layer 2, after the pouring layer 2 is solidified, the formwork is removed, finally, the floor is inspected, and the next step of working procedure can be carried out after the floor is qualified.

The above-mentioned, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a take hollow coincide floor of large-span of truss reinforcing bar, includes precast concrete layer (1), its characterized in that, the last skin weld of precast concrete layer (1) has cystosepiment (3), the upper surface of precast concrete layer (1) has the welding of the position department of nearly cystosepiment (3) to have truss reinforcing bar (4), layer (2) have been pour to the top of precast concrete layer (1), the inside weld of precast concrete layer (1) has vertical strengthening rib (5), the last skin weld of precast concrete layer (1) has cystosepiment (3) to close on the welding of position department of vertical strengthening rib (5) and has horizontal strengthening rib (6).

2. The large-span hollow composite floor slab with the truss reinforcing steel bars according to claim 1, wherein the upper surface of the precast concrete layer (1) is transversely provided with a transverse truss groove (7), the upper surface of the precast concrete layer (1) is longitudinally provided with a longitudinal truss groove (8), the upper surface of the inner precast concrete layer (1) of the truss reinforcing steel bars (4) is transversely welded with second U-shaped reinforcing steel bars (10), the upper surface of the inner precast concrete layer (1) of the truss reinforcing steel bars (4) is longitudinally welded with first U-shaped reinforcing steel bars (9), one side of the upper end of each first U-shaped reinforcing steel bar (9) is connected with a longitudinal rod (12) in a penetrating manner, and one side of the upper end of each second U-shaped reinforcing steel bar (10) is connected with a transverse rod (11) in a penetrating manner.

3. The large-span hollow composite floor slab with the truss reinforcing steel bars according to claim 1, wherein the longitudinal reinforcing steel bars (5) and the transverse reinforcing steel bars (6) are in cross welding connection, the longitudinal reinforcing steel bars (5) and the transverse reinforcing steel bars (6) are poured inside the precast concrete layer (1), and the truss reinforcing steel bars (4) are members made of porous polyphenyl foam materials.

4. The large-span hollow composite floor slab with the truss steel bars according to claim 2, wherein the width of the second U-shaped steel bars (10) is smaller than the opening width of the transverse truss grooves (7), and the width of the first U-shaped steel bars (9) is smaller than the opening width of the longitudinal truss grooves (8).

5. The large-span hollow composite floor slab with the truss steel bars according to claim 2, wherein the heights of the first U-shaped steel bars (9) and the second U-shaped steel bars (10) are larger than the height of the foam plate (3), and the lower surfaces of the first U-shaped steel bars (9) and the second U-shaped steel bars (10) penetrate through the precast concrete layer (1) and are connected with the longitudinal reinforcing ribs (5) and the transverse reinforcing ribs (6) in a welding mode.

6. The large-span hollow composite floor slab with the truss steel bars according to claim 2, wherein longitudinal rods (12) are connected to two sides of the front surface of the upper end of each first U-shaped steel bar (9) in a penetrating manner, transverse rods (11) are connected to two sides of the front surface of the upper end of each second U-shaped steel bar (10) in a penetrating manner, one second U-shaped steel bar (10) is arranged every thirty centimeters, one first U-shaped steel bar (9) is arranged every thirty centimeters, the upper surface of each first U-shaped steel bar (9) on the precast concrete layer (1) is transversely separated by sixty centimeters, and the upper surface of each second U-shaped steel bar (10) on the precast concrete layer (1) is longitudinally separated by one hundred twenty centimeters.