CN215289645U - Pre-buried extension connection structure's prefabricated T type roof beam - Google Patents
Pre-buried extension connection structure's prefabricated T type roof beam Download PDFInfo
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- CN215289645U CN215289645U CN202121834771.2U CN202121834771U CN215289645U CN 215289645 U CN215289645 U CN 215289645U CN 202121834771 U CN202121834771 U CN 202121834771U CN 215289645 U CN215289645 U CN 215289645U
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Abstract
The utility model discloses a pre-buried extension connection structure's prefabricated T type roof beam, including T type roof beam main part, pre-buried tendon, tendon butt joint reinforcement and pre-buried extension connecting piece, wherein pre-buried extension connecting piece includes sleeve pipe, capping, pre-buried reinforcing bar, connecting reinforcement, baffle and mortar fill the mouth. The expansion connecting pieces and the embedded reinforcing steel bars are embedded in the surfaces of the prefabricated T-shaped beams, so that the required construction amount of the prefabricated T-shaped beams during field assembly is reduced, and the proportion of a standardized flow in construction is improved, so that the effects of improving the construction quality and reducing the construction difficulty are achieved. The connection convenience and the connection strength between the prefabricated T-shaped beam and other prefabricated parts produced in a matched manner are improved by embedding the expansion connecting piece structure; by pre-burying the reinforcing steel bar bundles, the strength of the prefabricated T-shaped beam spacer after forming is improved, and the appearance and the size of the beam spacer are standardized. Finally, the effect of improving the coupling property and the connection strength between the bridge prefabricated parts is achieved.
Description
Technical Field
The utility model belongs to the technical field of the prefabricated beam slab of bridge, a pre-buried extension connection structure's prefabricated T type roof beam is provided very much.
Background
A T-beam refers to a beam having a T-shaped cross-section. The two side-out portions are called flanges, and the middle portion is called a beam rib (or web). Since it is formed by excavating concrete in the tensile zone of the rectangular beam which does not contribute to the flexural strength. The bending strength of the concrete is completely the same as that of the original rectangle, but the concrete can be saved, the self weight of the member is reduced, and the spanning capability is improved.
With the popularization of the assembly concept in the field of bridge construction, more and more assembly bridges formed by splicing prefabricated parts are put into construction and use. The appearance and the structure of current prefabricated T type roof beam are all too simple, have leaded to the associativity between the prefab poor, and the connection stability between the prefab receives in the later stage work progress, and constructor proficiency influences the big problem.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides a pre-buried extension connection structure's that is used for connecting supporting prefab prefabricated T type roof beam that is provided.
In order to achieve the above object, the utility model adopts the following technical scheme: a prefabricated T-shaped beam with an embedded expansion connection structure comprises a T-shaped beam main body, an embedded steel bar bundle, a steel bar bundle butt joint reinforcing member and an embedded expansion connection member, wherein the embedded steel bar bundle is transversely embedded in the T-shaped beam main body in advance, the steel bar bundle butt joint reinforcing member is sleeved at the tail end of the embedded steel bar bundle, and the embedded expansion connection member is embedded in the surface layer of the T-shaped beam main body in advance;
the pre-buried extension connecting piece includes that sleeve pipe, capping, embedded steel bar, connecting reinforcement, baffle and mortar fill the mouth, and the sleeve pipe cup joints in embedded steel bar's upper portion, and sleeve pipe and embedded steel bar are pre-buried in T type roof beam main part, and the capping welds in sheathed tube upper portion, and the baffle slides in sheathed tube inside, and connecting reinforcement runs through the capping and extends to the cover intraductally, and connecting reinforcement's lower extreme and baffle weld mutually, and the mortar fills the mouth all has been seted up to the central authorities of capping and baffle.
Furthermore, the inner wall of the sleeve is uniformly provided with annular grooves.
Furthermore, pre-buried tendon includes tendon sleeve, casing head and reinforcing bar, and the casing head welds in tendon sleeve's both ends, and the terminal surface of casing head is equipped with a plurality of perforation, and the reinforcing bar runs through the perforation of tendon sleeve and casing head terminal surface, and tendon sleeve's inside is as an organic whole through pouring concrete and reinforcing bar connection.
Furthermore, tendon butt joint reinforcement includes end plate, spliced pole and locating hole, a plurality of spliced poles of fixed mounting between two end plates, and the locating hole is evenly seted up on the end plate surface, and the end of reinforcing bar is pegged graft in the locating hole.
Further, the outer edge of the T-shaped beam main body flange is provided with an edge sealing plate in an assembling mode.
Furthermore, welding strips are embedded in the side walls of the T-shaped beam main body and the edge sealing plate, and the two welding strips are welded with each other.
Further, the inboard integrated into one piece of banding board has the assembly pterygoid lamina, and the pilot hole has evenly been seted up to the lower surface of assembly pterygoid lamina, and the surface of assembly pterygoid lamina is provided with the through-hole with the pilot hole intercommunication, and the position and the connecting reinforcement of pilot hole are corresponding, and both lock back through pouring the mutual fixed connection of mortar.
Further, the surfaces of the casing head and the end plate are respectively provided with a matching caulking groove and a flange.
Use the utility model discloses a beneficial effect is:
1. the expansion connecting pieces and the embedded reinforcing steel bars are embedded in the surfaces of the prefabricated T-shaped beams, so that the required construction amount of the prefabricated T-shaped beams during field assembly is reduced, and the proportion of a standardized flow in construction is improved, so that the effects of improving the construction quality and reducing the construction difficulty are achieved.
2. The connection convenience and the connection strength between the prefabricated T-shaped beam and other prefabricated parts produced in a matched manner are improved by embedding the expansion connecting piece structure; by pre-burying the reinforcing steel bar bundles, the strength of the prefabricated T-shaped beam spacer after forming is improved, and the appearance and the size of the beam spacer are standardized. Finally, the effect of improving the coupling property and the connection strength between the bridge prefabricated parts is achieved.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a schematic structural view of the pre-buried tendons and the tendon butt-joint reinforcing members of the present invention;
fig. 3 is a schematic structural view of the pre-buried extension connector of the present invention;
fig. 4 is a top view of the pre-buried extension connector of the present invention;
fig. 5 is a bottom view of the edge sealing plate of the present invention.
The reference numerals include: 1-a T-beam body; 2-pre-burying reinforcing steel bar bundles; 201-tendon casing; 202-casing head; 203-steel bars; 3-tendon butt-joint reinforcement; 301-end plate; 302-connecting column; 303-positioning holes; 4-embedding an expansion connecting piece; 401-a cannula; 402-capping; 403-embedding reinforcing steel bars; 404-connecting reinforcing steel bars; 405-a separator; 406-mortar pouring port; 407-an annular groove; 5-edge sealing plate; 6-welding strips; 7-assembly holes.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
Referring to fig. 1 to 5, a prefabricated T-shaped beam of an embedded expansion connection structure includes a T-shaped beam main body 1, and further includes an embedded tendon 2, a tendon butt-joint reinforcement 3, and an embedded expansion connection member 4, wherein the embedded tendon 2 is horizontally embedded in the T-shaped beam main body 1, the tendon butt-joint reinforcement 3 is sleeved at the tail end of the embedded tendon 2, and the embedded expansion connection member 4 is embedded in the surface layer of the T-shaped beam main body 1;
the embedded expansion connector 4 comprises a sleeve 401, a capping 402, embedded steel bars 403, connecting steel bars 404, a partition plate 405 and a mortar filling port 406, the sleeve 401 is sleeved on the upper portion of the embedded steel bars 403, the sleeve 401 and the embedded steel bars 403 are embedded in the T-shaped beam main body 1, the capping 402 is welded on the upper portion of the sleeve 401, the partition plate 405 slides in the sleeve 401, the connecting steel bars 404 penetrate through the capping 402 and extend into the sleeve 401, the lower end of the connecting steel bars 404 is welded with the partition plate 405, and the mortar filling port 406 is formed in the centers of the capping 402 and the partition plate 405.
This pre-buried extension connecting piece 4 structure is pre-buried in the T type roof beam main part 1 of volume production, makes T type roof beam main part 1 can enough use with prefabricated members such as the prefabricated bridge deck decking board of supporting production (when pre-buried extension connecting piece 4 expandes), also can assemble ordinary prefabricated bridge deck decking board or directly carry out the cast-in-place construction of mating (when pre-buried extension connecting piece 4 did not expand). When the embedded extension connector 4 needs to be unfolded, a constructor pulls the connecting steel bar 404 bundle welded with the partition 405 upwards to the limit position, mortar is poured into the sleeve 401 through the mortar pouring port 406, and after the mortar is poured, the constructor stands for waiting for forming and curing. During the mortar forming and curing process, the contact surface between the partition plate 405 and the mortar is large, so that the partition plate and the connecting steel bars 404 welded with the partition plate are prevented from sinking into the mortar under the action of gravity, and the condition that the extending lengths of the connecting steel bars 404 are uneven is avoided; when the expansion connecting piece 4 does not need to be embedded and unfolded, mortar is directly poured into the sleeve 401 through the mortar pouring port 406; when the cast-in-place mode is selected in the subsequent paving construction, mortar can be poured after the connecting reinforcing steel bars 404 drag the sleeve 401 upwards for half way, the connecting reinforcing steel bars 404 with short exposed positions on the top are ensured, and the stability of the paving structure after the cast-in-place paving construction is improved.
The engaging force between the poured concrete and the inner wall of the sleeve 401 after the poured concrete is formed is improved.
The embedded tendons 2 include tendon casings 201, casing heads 202 and reinforcing steel bars 203, the casing heads 202 are welded to both ends of the tendon casings 201, the end faces of the casing heads 202 are provided with a plurality of through holes, the reinforcing steel bars 203 penetrate through the through holes of the end faces of the tendon casings 201 and the casing heads 202, and the inside of the tendon casings 201 is connected with the reinforcing steel bars 203 into a whole through poured concrete.
The pre-buried tendons 2 are basically a tendon prefabricated member consisting of tendon casings 201, casing heads 202 and steel bars 203, can selectively use different batches of cement to fix a plurality of steel bars 203, improves the integral structural strength of the tendons, and can protect the steel bars 203, reduce the aging speed of the steel bars and improve the integral quality of the prefabricated T-shaped beam due to the standardized concrete proportion used for prefabrication.
The tendon butt joint reinforcing member 3 comprises end plates 301, connecting columns 302 and positioning holes 303, wherein a plurality of connecting columns 302 are fixedly installed between the two end plates 301, the positioning holes 303 are uniformly formed in the surfaces of the end plates 301, and the tail ends of the reinforcing steel bars 203 are inserted into the positioning holes 303.
Tendon butt joint reinforcement 3 is used for butt joint in advance and consolidating before welding the reinforcing bar 203 at pre-buried tendon 2 end, the reinforcing bar 203 that the different T type roof beams in both sides extend has been made up respectively in the end plate 301 at tendon butt joint reinforcement 3 both ends to with the terminal surface of two sets of reinforcing bars 203 at its inside butt joint effect of accomplishing the one-to-one, when facilitating for the steel bar welding work, accomplish the steel bar welding back, can be as an organic whole with end plate 301 and reinforcing bar 203 spot welding, play the effect of consolidating to the steel bar welding department. The combination of the pre-buried steel bar bundles 2 and the steel bar bundle butt-joint reinforcing members 3 is used for positioning the T-shaped beam spacing plate in a pouring mode and improving the structural strength of the beam spacing plate.
The outer edges of the flanges of the T-shaped beam body 1 are provided with edge sealing plates 5.
The edge sealing plate 5 is an edge sealing structure which is positioned at the edges of two sides of the beam body after the T-shaped beam is combined.
The side walls of the T-shaped beam main body 1 and the edge sealing plate 5 are embedded with welding strips 6, and the two welding strips 6 are welded with each other.
The inboard integrated into one piece of blank sealing board 5 has the assembly pterygoid lamina, and pilot hole 7 has evenly been seted up to the lower surface of assembly pterygoid lamina, and the surface of assembly pterygoid lamina is provided with the through-hole with pilot hole 7 intercommunication, and the position and the connecting reinforcement 404 of pilot hole 7 are corresponding, and both lock the back through pouring the mutual fixed connection of mortar.
The bottom of the edge sealing plate 5 is prefabricated with the assembling hole 7 butted with the embedded expansion connecting piece 4, so that the edge sealing plate 5 can be conveniently assembled through the embedded expansion connecting piece 4, the defect that the existing T-shaped beam is required to be independently produced and is provided with the edge sealing plate 5 is overcome, and convenience is brought to the standardized production of the prefabricated T-shaped beam.
The surfaces of the casing head 202 and end plate 301 are provided with mating rebates and flanges, respectively.
Make pre-buried tendon 2 and tendon butt joint reinforcement 3 can accomplish the butt joint of leaving the factory, improve the stability of prefab, facilitate for the transportation of prefabricated T type roof beam.
The above description is only a preferred embodiment of the present invention, and many changes can be made in the detailed description and the application scope according to the idea of the present invention for those skilled in the art, which all belong to the protection scope of the present invention as long as the changes do not depart from the concept of the present invention.
Claims (8)
1. The utility model provides a pre-buried extension connection structure's prefabricated T type roof beam, includes T type roof beam main part, its characterized in that: the T-shaped beam also comprises pre-buried steel bar bundles, a steel bar bundle butt joint reinforcing piece and pre-buried expansion connecting pieces, wherein the pre-buried steel bar bundles are transversely pre-buried in the T-shaped beam main body;
the pre-buried extension connecting piece includes that sleeve pipe, capping, embedded steel bar, connecting reinforcement, baffle and mortar fill the mouth, and the sleeve pipe cup joints in embedded steel bar's upper portion, and sleeve pipe and embedded steel bar are pre-buried in T type roof beam main part, and the capping welds in sheathed tube upper portion, and the baffle slides in sheathed tube inside, and connecting reinforcement runs through the capping and extends to the cover intraductally, and connecting reinforcement's lower extreme and baffle weld mutually, and the mortar fills the mouth all has been seted up to the central authorities of capping and baffle.
2. The prefabricated T-shaped beam with the embedded extension connecting structure as claimed in claim 1, which is characterized in that: the inner wall of the sleeve is uniformly provided with annular grooves.
3. The prefabricated T-shaped beam with the embedded extension connecting structure as claimed in claim 1, which is characterized in that: the embedded steel bar bundle comprises a steel bar bundle casing, a casing head and steel bars, the casing head is welded at two ends of the steel bar bundle casing, the end face of the casing head is provided with a plurality of through holes, the steel bars penetrate through the through holes in the end faces of the steel bar bundle casing and the casing head, and the inside of the steel bar bundle casing is connected with the steel bars into a whole through poured concrete.
4. The prefabricated T-shaped beam with the embedded extension connecting structure as claimed in claim 3, which is characterized in that: the tendon butt joint reinforcement comprises end plates, connecting columns and positioning holes, wherein the connecting columns are fixedly installed between the two end plates, the positioning holes are uniformly formed in the surfaces of the end plates, and the tail ends of the reinforcing steel bars are inserted into the positioning holes.
5. The prefabricated T-shaped beam with the embedded extension connecting structure as claimed in any one of claims 1 to 4, wherein: and the outer edge of the flange of the T-shaped beam main body is provided with an edge sealing plate.
6. The prefabricated T-shaped beam with the embedded extension connecting structure as claimed in claim 5, which is characterized in that: and welding strips are embedded into the side walls of the T-shaped beam main body and the edge sealing plate, and the two welding strips are welded with each other.
7. The prefabricated T-shaped beam with the embedded extension connecting structure as claimed in claim 5, which is characterized in that: the inboard integrated into one piece of banding board has the assembly pterygoid lamina, and the pilot hole has evenly been seted up to the lower surface of assembly pterygoid lamina, and the surface of assembly pterygoid lamina is provided with the through-hole with the pilot hole intercommunication, and the position and the connecting reinforcement of pilot hole are corresponding, and both locks the back through pouring the mutual fixed connection of mortar.
8. The prefabricated T-shaped beam with the embedded extension connecting structure as claimed in claim 4, which is characterized in that: the surfaces of the casing head and the end plate are respectively provided with a caulking groove and a flange which are matched with each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121834771.2U CN215289645U (en) | 2021-08-07 | 2021-08-07 | Pre-buried extension connection structure's prefabricated T type roof beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121834771.2U CN215289645U (en) | 2021-08-07 | 2021-08-07 | Pre-buried extension connection structure's prefabricated T type roof beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215289645U true CN215289645U (en) | 2021-12-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121834771.2U Active CN215289645U (en) | 2021-08-07 | 2021-08-07 | Pre-buried extension connection structure's prefabricated T type roof beam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215289645U (en) |
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2021
- 2021-08-07 CN CN202121834771.2U patent/CN215289645U/en active Active
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