CN210530140U

CN210530140U - Groove type component for connecting prefabricated frame floor slab reinforcing steel bars

Info

Publication number: CN210530140U
Application number: CN201921006275.0U
Authority: CN
Inventors: 王海崴; 王本淼
Original assignee: Hunan BDF Energy Saving Technology Co Ltd
Current assignee: Hunan BDF Energy Saving Technology Co Ltd
Priority date: 2019-06-28
Filing date: 2019-06-28
Publication date: 2020-05-15
Anticipated expiration: 2029-06-28

Abstract

The utility model provides a groove type component for connecting precast frame floor slab reinforcing steel bars, which is characterized in that the groove type component consists of channel steel, a drawing steel piece and a reinforcing steel bar eyelet; the length of the channel steel is less than the width of a rib beam of the prefabricated frame floor slab; the width of the channel steel bottom plate is more than 60mm, and the height of the channel steel wall is more than 40 mm; the pulling steel piece is made of short channel steel or steel bars; the inner space width of the pull-connection steel piece is matched with the outer side width of the channel steel wall; and holes for connecting the steel bars of the prefabricated frame floor slab are drilled in the wall of the channel steel.

Description

Groove type component for connecting prefabricated frame floor slab reinforcing steel bars

Technical Field

The utility model relates to a frame construction assembly type building system technique, concretely relates to connect slot type component of prefabricated frame floor reinforcing bar.

Background

The country implements a popularization and assembly type building industry plan, and plays a promoting role in adjusting the structure of the building industry, improving the building quality, accelerating the construction speed, realizing energy conservation and environmental protection and improving the building science and technology; however, the fabricated building of the reinforced concrete frame structure system is not widely used, and the common technology is that a common composite floor slab and a double-T plate floor slab are adopted; and because the beam column node, the superposed formation of the beam and the floor slab and the connection method of the member steel bar of the reinforced concrete frame structure assembly type building are not well solved, the original purpose of reducing the engineering cost in China is not realized, but the cost is increased, and the development of the assembly type building industry is restricted because of the air-free property.

Really use novel people's "an assembly type building cavity floor" mandate notice No. CN106381951B, solved the weight of assembly type building floor, the super large area of floor component, transportation and construction hoist and mount, the flexonics problem of assembly type building cavity floor and girder, established the basis for assembly type building floor.

In order to realize rigid connection of the assembled building components, the utility model discloses a "prefabricated convex beam of assembled", the authority bulletin number CN208777555U has changed the structural style of girder, combines traditional square roof beam and wide flat roof beam into convex beam, has both solved the roof beam board coincide form, has realized reducing the coincide height of assembled building roof beam and board to minimum under the state of rigid connection again, makes the structural innovation of reinforced concrete frame structure assembled building, has stepped a key step.

In order to realize that the beam column of the fabricated building with the reinforced concrete frame structure has no node, the inventor's ' building with the prefabricated reinforced concrete support ', the application number of which is 201811424448.0; the rigid connection of the support and the beam is carried out from the negative bending moment point of the beam; the dream that the beam column has no node is realized, and the world construction difficulty that the beam column of the fabricated building of the reinforced concrete frame structure has no node is solved; the invention gradually forms the technology of a reinforced concrete assembly type frame structure system, and because the inventor solves the key technology that a beam and a floor slab are superposed and a beam column has no node, the construction of the assembly type frame structure system in the existing assembly type construction can be saved from a complicated and expensive assembly type shear wall structure system, and the construction cost is reduced by more than 20 percent; however, the steel bar connection of each assembly type component can only adopt the connection mode of the prior art, such as: binding and connecting reinforcing steel bars, welding, mechanically connecting screw sleeves and connecting outer sleeves in a grouting manner; the binding connection and welding in the methods can not meet the standard requirements; the screw sleeve mechanical connection is characterized in that two fixed component steel bars cannot be connected in a rotating way; the grouting connection of the outer sleeves is very complicated and expensive, and the connection cost of the steel bars is very high.

At present, the technology of the assembly type building system of the reinforced concrete frame structure is gradually improved by the inventor for the first time, and in order to further form a system technical system, the steel bars of all components of the reinforced concrete assembly type frame structure are simple to connect, safe and reliable to connect and good in economical efficiency, so that the assembly type building system becomes an urgent need for innovation in the technical field of the reinforced concrete assembly type frame structure building system.

SUMMERY OF THE UTILITY MODEL

The utility model aims to form the reinforced concrete assembled frame structure system technology which is independently researched and developed, thoroughly solve the problem that the beam column of the assembled frame structure has no node, and under the premise of the superposition mode of the beam and the floor, the problems of the steel bar connection method and the connection device between the structural support fulcrum and the convex beam, between the convex beam and the prefabricated frame floor component, and between the prefabricated frame floor component and the prefabricated frame floor component are solved, and the existing assembled building structure technology is transformed and upgraded; the method optimizes the prior assembly type building structure technical system and overcomes a series of defects of the prior assembly type building component connecting method and connecting device.

The technical scheme of the utility model is that the groove type component for connecting the precast frame floor slab steel bars is characterized in that the groove type component is composed of channel steel, a drawing steel piece and a steel bar eyelet; the length of the channel steel is less than the width of a rib beam of the prefabricated frame floor slab; the width of the channel steel bottom plate is more than 60mm, and the height of the channel steel wall is more than 40 mm; the pulling steel piece is made of short channel steel or steel bars; the inner space width of the pull-connection steel piece is matched with the outer side width of the channel steel wall; and holes for connecting the steel bars of the prefabricated frame floor slab are drilled in the wall of the channel steel.

The utility model discloses a another preferred scheme is bottom plate and the lateral wall thickness of channel-section steel are more than or equal to 4 mm.

Another preferred scheme of the utility model is that the billet of drawing the steel part is round steel or belted steel board.

The utility model discloses a another preferred scheme is the length of the short channel steel of drawing and connecting the steel part is within half of the channel-section steel.

Another preferred scheme of the utility model is that holes for connecting the steel bars of the precast frame floor slab are drilled on the channel steel wall; the eyelet is a round hole.

The other preferable proposal of the utility model is that the length of the short channel steel of the drawing steel piece is less than or equal to that of the channel steel; digging notches at the corresponding parts of the short channel steel and the holes of the channel steel wall; the depth of the notch is more than 30 m; the width of the notch is equal to the diameter of the hole; the number of the notches is equal to that of the holes.

Another preferred scheme of the utility model is that holes for connecting the steel bars of the precast frame floor slab are drilled on the channel steel wall; the holes are strip-shaped holes.

The utility model discloses a connect slot type component of prefabricated frame floor reinforcing bar is on the basis of building structure design drawing, with post, roof beam, floor, support, the wall of constituteing the building in the overall structure design drawing, decomposes into a plurality of components, and the mill produces into the component of required specification model according to the component tissue that decomposes, transports the engineering scene with the component, with the utility model discloses the slot type component of applying carries out the steel bar connection and the post-cast concrete of each component, builds the assembly type building of reinforced concrete frame structure.

Drawings

Fig. 1 is a diagram of an embodiment of the groove member assembly of the present invention.

Figure 2 is the channel steel and hole pattern of the trough member of the present invention.

Fig. 3 is a diagram of an embodiment of the short channel steel of the channel member of the present invention.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

FIG. 1 is a diagram of an embodiment of a trough-type member assembly of the present invention, as implemented; determining the size of the sectional area of the channel steel 11 according to the tensile force borne by the main beam of the prefabricated frame structure or the floor rib beam steel bar to be connected; the channel steel 11 consists of a bottom plate 12 and two side walls 13; cutting the selected channel steel 11 into a width specification which is not larger than that of a main beam or a floor rib beam, and respectively positioning and drilling N holes 14 on two side walls 13 of the channel steel according to the quantity of required connecting steel bars; forming a connector 15 for connecting the steel bar channel steel of the rib beam of the prefabricated frame floor; then, according to the width of the outer side wall of the manufactured channel steel connector 15, a channel steel 16 is produced in a fixed mode in a section steel manufacturer, and the inner width of the two side walls of the channel steel 16 is matched with the outer width of the two side walls of the channel steel 11; vertically digging notches 17 on two side walls of the short channel steel 16, wherein the depth of the notches is more than 30m, the width of the notches is equal to the diameter of the hole, and the quantity of the notches is the same as that of the hole; when the efficient connection is implemented on site, one end of the steel bar to be connected is firstly connected into the eyelet 14 of any one side wall of the channel steel connector 15 in series, then the channel steel connector 15 is moved, the other steel bar to be connected is connected into the eyelet 14 of the other side wall of the channel steel connector 15 in series, the nut is tightened, and the steel bar to be connected with the floor rib beam is converted through the channel steel connector 15, so that the efficient and low-cost connection is achieved; the deformation of the channel steel connector 15 when a load is applied is prevented, so that connection safety danger is avoided, after a connected steel bar passes through the eyelet 14 of the channel steel connector 15 and the nut is pinched, the short channel steel 16 is quickly sleeved on the outer edges of two side walls of the channel steel connector 15, and the digging notch of the short channel steel is inserted opposite to the connected steel bar to form a groove type component; and determining whether the joint of the sleeved channel steel connector 15 and the sleeved channel steel 16 is welded according to the stress state.

Fig. 2 is a diagram of a channel steel and a hole of the channel member of the present invention, wherein the channel steel 11 of the channel member includes a bottom plate 12 and two side walls 13; selecting channel steel 11 according to the function of connecting the floor rib beam and the strength of bearing tension, cutting the channel steel into a width specification which is not more than the width specification of the floor rib beam, and respectively positioning and drilling holes 14 on two side walls 13 of the channel steel according to the number of connecting reinforcing steel bars to form a channel steel connector 15 for connecting the prefabricated frame floor rib beam; the number of the positioning drilled holes on the two side walls 13 of the channel steel is not necessarily completely equal; because the two connected components are designed and calculated by considering the total bearing capacity to meet the requirement, the quantity of the steel bars of the two components is different due to the change of the diameter of the steel bars, and the quantity of the positioning drilled holes on the two side walls 13 of the channel steel connector 15 is not necessarily completely equal.

Fig. 3 is a diagram of an embodiment of the short channel steel of the channel member of the present invention, the channel steel currently selected as the channel steel connector is the standard of the common channel steel, but the width of the inner side wall of the short channel steel 16 is matched with the width of the outer side wall of the channel steel connector, which is the standard of the deformed channel steel, and the short channel steel is required to be ordered in batch production in the steel mill and is used as the special short channel steel 16; vertically digging notches 17 on two side walls of the short channel steel 16, wherein in order to enable the short channel steel 16 to sleeve the channel steel connector as far as possible, the depth of the notch is not limited by steel bars and is as deep as possible, and the tensile safety coefficient is high after the short channel steel is sleeved with the channel steel connector as far as possible; the formed channel member is essentially a combination of a channel connector and a channel 16; the width of the notch is more than or equal to the diameter of the eyelet, and the short channel steel 16 is smoothly sleeved on the channel steel connector when high-efficiency connection is implemented on site; the number of the notches is the same as that of the holes on the two side walls respectively; the short channel steel 16 mainly enhances the tensile strength of the channel member, ensures that the channel steel connector does not deform when being pulled, and achieves the purposes of high-efficiency, high-quality, high-strength and low-cost steel bar connection; when the short channel steel 16 dedicated to the unconditional fixed-production ordering is replaced by the wide channel steel, the joint seam of the wide channel steel must be subjected to steel material gap filling treatment, and then the joint seam is welded.

The groove-type member connecting device can be adopted in a steel bar connecting method between the structural support fulcrum and the convex beam, between the convex beam and the prefabricated frame floor member, and between the prefabricated frame floor member and the prefabricated frame floor member.

It should be finally noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that the modifications or equivalent substitutions can be made to the specific embodiments of the present invention, and any modifications or equivalent substitutions that do not depart from the spirit and scope of the present invention should be covered by the claims of the present invention.

Claims

1. A trough type member for connecting precast frame floor slab reinforcing steel bars is characterized in that the trough type member consists of channel steel, a pull-connection steel piece and a reinforcing steel bar eyelet; the length of the channel steel is less than the width of a rib beam of the prefabricated frame floor slab; the width of the channel steel bottom plate is more than 60mm, and the height of the channel steel wall is more than 40 mm; the pulling steel piece is made of short channel steel or steel bars; the inner space width of the pull-connection steel piece is matched with the outer side width of the channel steel wall; and holes for connecting the steel bars of the prefabricated frame floor slab are drilled in the wall of the channel steel.

2. The channel member for connecting rebars of a precast framed floor as claimed in claim 1, wherein the thickness of the bottom and side walls of the channel is not less than 4 mm.

3. A channel member for joining precast frame floor slab reinforcing bars according to claim 1, wherein the steel bars of the tie steel member are round steel or strip steel.

4. A channel member for joining precast frame floor slab reinforcing bars according to claim 1, wherein the length of the short channel of the tie steel member is less than half of the length of the channel.

5. The channel member of claim 1, wherein the channel walls are provided with holes for receiving the reinforcement bars of the framing floor slab; the eyelet is a round hole.

6. The channel member of claim 1, wherein the length of the short channel of the tie-in steel member is no greater than the length of the channel; digging notches at the corresponding parts of the short channel steel and the holes of the channel steel wall; the depth of the notch is more than 30 m; the width of the notch is equal to the diameter of the hole; the number of the notches is equal to that of the holes.

7. The channel member of claim 1, wherein the channel walls are provided with holes for receiving the reinforcement bars of the framing floor slab; the holes are strip-shaped holes.