CN210684441U

CN210684441U - Simply supported beam steel bar connection structure

Info

Publication number: CN210684441U
Application number: CN201921447965.XU
Authority: CN
Inventors: 吴潮丰; 谭小玲; 吴少楠
Original assignee: Shenzhen Shenan Enterprise Co ltd
Current assignee: Shenzhen Shenan Enterprise Co ltd
Priority date: 2019-09-02
Filing date: 2019-09-02
Publication date: 2020-06-05
Anticipated expiration: 2029-09-02

Abstract

The utility model discloses a simply supported beam steel bar connection structure, which comprises a steel bar structure arranged in a simply supported beam and a connection part arranged between adjacent simply supported beams, wherein the steel bar structure comprises a steel bar which is arranged in the simply supported beam and is fixed with the simply supported beam and an end seat which is fixed on the end part of the simply supported beam, and the steel bar sequentially passes through the end surface and the end seat of the simply supported beam; the connecting part comprises buffer seats detachably connected and fixed with the end seat and buffer layers arranged between the adjacent buffer seats, and the adjacent buffer seats are detachably connected and fixed; one end of the reinforcing bar, which penetrates out of the end seat, penetrates into the surface of the buffer seat, which is close to the end seat. The utility model has the advantages of it is following and effect: this steel bar connection structure has connected adjacent simple beam, has promoted the wholeness and the steadiness of the bridge that is carried by simple beam and forms.

Description

Simply supported beam steel bar connection structure

Technical Field

The utility model relates to a bridge field, in particular to simply supported beam steel bar connection structure.

Background

The two ends of the simply supported beam, namely the finger beam, are placed on the supports, the supports only restrain the vertical displacement of the beam, and the beam end can rotate freely. In order to prevent the whole beam from moving horizontally, a horizontal constraint is usually added at one end of the simply supported beam, the support at the position is called a hinged support, and the support at the other end without horizontal constraint is called a rolling support. The simply supported beam is a supporting structure with two end supports only providing vertical restraint and not providing corner restraint. The simple supported beam has the characteristics that additional internal force cannot be generated in the beam due to system temperature change, concrete shrinkage and creep, tensioning prestress, support movement and the like, and the stress is simple. The simple beam is only suitable for between the support of short distance, and its length is generally no longer than ten meters, and the both ends of adjacent simple beam are carried on same support, just so make on the simple beam tip the reinforcing bar expose in the clearance between the simple beam for lack the connection between the simple beam, influence the wholeness of bridge.

Therefore, a need exists for a simply supported beam steel bar connection structure, which connects adjacent simply supported beams and improves the integrity and stability of a bridge formed by the simply supported beams.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a not enough to prior art exists, the utility model aims at providing a simply supported beam steel bar connection structure, this steel bar connection structure has connected adjacent simply supported beam, has promoted the wholeness and the steadiness of carrying on the bridge that forms by the simply supported beam.

The above technical purpose of the present invention can be achieved by the following technical solutions:

a simple supported beam steel bar connecting structure comprises a steel bar structure arranged in a simple supported beam and a connecting part arranged between adjacent simple supported beams, wherein the steel bar structure comprises steel bars arranged in and fixed with the simple supported beams and end seats fixed on the end parts of the simple supported beams, and the steel bars sequentially penetrate through the end surfaces and the end seats of the simple supported beams; the connecting part comprises buffer seats detachably connected and fixed with the end seat and buffer layers arranged between the adjacent buffer seats, and the adjacent buffer seats are detachably connected and fixed; one end of the reinforcing bar, which penetrates out of the end seat, penetrates into the surface of the buffer seat, which is close to the end seat.

Through adopting above-mentioned technical scheme, be fixed with the end socket on the simply supported beam tip, and the end socket is connected fixedly with the cushion socket, and the reinforcing bar of wearing out the simply supported beam terminal surface passes the end socket and penetrates in the cushion socket, in addition can dismantle between the cushion socket and connect fixedly for reinforcing bar between simply supported beam and the simply supported beam all connects fixedly, has improved the wholeness of the bridge of buildding the formation by this simply supported beam, also is favorable to promoting the structural stability of this bridge.

The utility model discloses further set up to, connecting portion still include construction bolt, the construction bolt tip passes adjacent in proper order the cushion socket and with the equal clearance fit of adjacent cushion socket, just the construction bolt tip cover be equipped with construction bolt threaded connection's mounting nut.

Through adopting above-mentioned technical scheme, when mounting nut screwed, support tightly between the buffer seat, and mounting bolt and buffer seat clearance fit prevent to break mounting bolt when producing vertical skew between the buffer seat.

The utility model is further arranged that a mounting sleeve sleeved on the end seat is fixed on the surface of the buffer seat close to the end seat, a copper metal sleeve is embedded and fixed in the surface of the end seat close to the inner wall of the mounting sleeve, and a steel metal pipe is fixed in the metal sleeve; and fastening bolts are arranged on the mounting sleeve, and the end parts of the fastening bolts penetrate through the outer wall of the mounting sleeve, extend into the metal pipe and are in threaded connection with the inner wall of the metal pipe.

By adopting the technical scheme, when the fastening bolt is screwed tightly, the mounting sleeve on the buffer seat is abutted against the end seat, so that the buffer seat and the end seat are detachably connected and fixed; fastening bolt is fixed with the tubular metal resonator, and the tubular metal resonator is fixed in the tubular metal resonator, and the tubular metal resonator is the steel for copper, and the elasticity of copper is better than the steel for when the cushion socket removes for the end seat, fastening bolt drives the tubular metal resonator and removes, makes the tubular metal resonator produce the deformation, prevents that fastening bolt rupture from damaging.

The utility model discloses further set up to, the buffer layer is made by rubber, the buffer layer with the buffing pad is kept away from the fixed surface of end seat, and adjacent buffer layer between the buffing pad is equipped with two, two altogether the buffer layer offsets.

Through adopting above-mentioned technical scheme, when the simple beam produced the extension deformation along its length direction, be close to each other between the tip of adjacent simple beam for be close to each other between the end seat, thereby make and be close to each other between the cushion socket, at this moment, the buffer layer that sets up between the cushion socket supports tightly and warp, has cushioned the removal between the cushion socket, prevents that the cushion socket rigidity is contradicted, thereby prevents to produce the internal stress owing to warping between the simple beam, is favorable to protecting the simple beam.

The utility model is further arranged that a stainless steel sheet and a polytetrafluoroethylene plate are respectively fixed between the buffer layers, and the stainless steel sheet and the polytetrafluoroethylene plate are jointed and abutted; the mounting bolt penetrates through the stainless steel sheet and the polytetrafluoroethylene plate in sequence, and the mounting bolt is in clearance fit with the stainless steel sheet and the polytetrafluoroethylene plate.

Through adopting above-mentioned technical scheme, be fixed with stainless steel sheet and the polytetrafluoroethylene board of mutual butt between the buffer layer, and the coefficient of friction between stainless steel and the polytetrafluoroethylene is little, is favorable to releasing the vertical skew between the cushion socket.

The utility model discloses further set up to, steel bar structure is still including setting up the girder steel in the simple beam, the girder steel includes the first steel sheet and the second steel sheet that distribute from top to bottom, just first steel sheet with be fixed with a plurality of backup pads of arranging along simple beam width direction between the second steel sheet.

Through adopting above-mentioned technical scheme, the girder steel is formed by first steel sheet, second steel sheet and backup pad are fixed, and the cross section is a plurality of confined rectangle structures, and the structure is firm for the simple beam is more firm.

The utility model discloses further set up to, reinforcing bar evenly distributed in between the backup pad, it is adjacent many reinforcing bars between the backup pad are the annular and distribute, and adjacent welded fastening is equipped with the cover and locates many between the backup pad reinforcing bar is last and with the equal welded fastening's of many reinforcing bars reinforcing bar steel bar circle.

Through adopting above-mentioned technical scheme, through the reinforcing bar welded fastening between reinforcing bar and the girder steel, strengthened being connected between reinforcing bar and the girder steel, and the reinforcing bar cover locate between the backup pad a plurality of reinforcing bars on and with a plurality of reinforcing bar welded fastening for connection between the reinforcing bar is strengthened, thereby makes the structure of simply supported beam more firm.

The utility model is further arranged that one end of the end seat penetrates into and is fixed with the end face of the simply supported beam, the other end is arranged outside the simply supported beam, and a limiting plate is fixed at one end of the end seat positioned in the simply supported beam; the limiting plate is arranged in the simply supported beam and fixed with the simply supported beam.

Through adopting above-mentioned technical scheme, the area of contact between end seat and the simply supported beam has been increased in the setting of limiting plate for be connected between end seat and the simply supported beam more stably.

To sum up, the utility model discloses a beneficial technological effect does:

1. the end seat is fixed on the end part of the simply supported beam, the end seat is connected and fixed with the buffer seat, the reinforcing steel bar penetrating out of the end face of the simply supported beam penetrates through the end seat and penetrates into the buffer seat, and the buffer seats are detachably connected and fixed, so that the reinforcing steel bar between the simply supported beam and the simply supported beam is connected and fixed, the integrity of a bridge constructed by the simply supported beam is improved, and the structural stability of the bridge is also favorably improved;

2. the fastening bolt is fixed with the metal pipe, the metal pipe is fixed in the metal sleeve, the metal sleeve is made of copper, the metal pipe is made of steel, and the elasticity of copper is better than that of steel, so that when the buffer seat moves relative to the end seat, the fastening bolt drives the metal pipe to move, the metal sleeve deforms, and the fastening bolt is prevented from being broken and damaged;

3. be fixed with stainless steel sheet and the polytetrafluoroethylene board of mutual butt between the buffer layer, and the coefficient of friction between stainless steel and the polytetrafluoroethylene is little, is favorable to releasing the vertical skew between the cushion socket.

Drawings

FIG. 1 is a schematic view of the overall structure of the embodiment;

FIG. 2 is a schematic view of a structure of a connecting portion;

FIG. 3 is a schematic cross-sectional view of a simply supported beam;

fig. 4 is an enlarged schematic view at a in fig. 2.

In the figure: 1. a steel bar structure; 11. a steel beam; 111. a first steel plate; 112. a second steel plate; 113. a support plate; 12. an end seat; 121. a limiting plate; 13. reinforcing steel bars; 131. a steel bar ring; 2. a connecting portion; 21. a buffer seat; 211. an accommodation hole; 22. installing a sleeve; 221. fastening a bolt; 222. a metal sheath; 223. a metal tube; 23. a buffer layer; 231. a stainless steel sheet; 232. a polytetrafluoroethylene sheet; 24. installing a bolt; 241. and (6) mounting the nut.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1, a simply supported beam steel bar connection structure includes a steel bar structure 1 and a connection portion 2. Referring to fig. 2 and 3, the steel bar structure 1 includes a steel beam 11, an end base 12, and a steel bar 13. The steel beam 11 includes a first steel plate 111, a second steel plate 112, and a support plate 113, the first steel plate 111 is in a rectangular long plate shape and is disposed in the simply supported beam, a plate surface of the first steel plate 111 is horizontal, and a length direction of the first steel plate 111 is identical to a length direction of the simply supported beam. The second steel plate 112 is consistent with the first steel plate 111 in structure, is arranged in the simply supported beam and is parallel to the first steel plate 111, the first steel plate 111 and the second steel plate 112 are vertically aligned and distributed in the simply supported beam, and the first steel plate 111, the second steel plate 112 and concrete in the simply supported beam are coagulated and fixed. The support plate 113 is a rectangular long plate, and is disposed in the simply supported beam and located between the first steel plate 111 and the second steel plate 112, the plate surface of the support plate 113 is vertically disposed, and the upper side and the lower side of the support plate 113 are welded and fixed to the bottom surface of the first steel plate 111 and the upper surface of the second steel plate 112 respectively. The length direction of the supporting plate 113 is the same as the length direction of the first steel plate 111, and the supporting plate 113 is provided with four blocks in the simply supported beam, and the four supporting plates 113 are uniformly arranged along the width direction of the simply supported beam.

As shown in fig. 2, the end seat 12 is a cylindrical block structure, the axis of which is parallel to the length direction of the simply supported beam, and one end of the end seat 12 penetrates into the end surface of the simply supported beam and is fixed with the simply supported beam in a condensation manner, and the other end is arranged outside the end surface of the simply supported beam. The end base 12 is provided with a limiting plate 121, the limiting plate 121 is in a circular plate shape, the axis of the limiting plate 121 coincides with the axis of the end base 12, the limiting plate 121 is arranged in the simply supported beam and is fixed with the simply supported beam in a condensation manner, and the limiting plate 121 is fixed on the end face of one end of the end base 12 penetrating into the simply supported beam. In addition, the face diameter of limiting plate 121 is greater than the diameter of end seat 12, has effectively increased the area of contact that end seat 12 is located the simply supported beam to increased the resistance that end seat 12 breaks away from the simply supported beam, make the connection of end seat 12 and simply supported beam more firm. Referring to fig. 3, the reinforcing bars 13 are bar-shaped structures having circular cross sections and made of reinforcing bars, the reinforcing bars 13 are disposed in the simply supported beams and located in the spaces between the supporting plates 113, the reinforcing bars 13 are fixed to the simply supported beams by being bonded thereto, and the length direction of the reinforcing bars 13 is identical to the length direction of the simply supported beams. Two ends of the reinforcing steel bar 13 respectively penetrate through the end seat 12 and penetrate out of one end face of the end seat 12, which is located outside the simply supported beam, the reinforcing steel bar 13 is provided with a plurality of reinforcing steel bars 13 which are uniformly distributed among the supporting plates 113, the reinforcing steel bars 13 among the supporting plates 113 are provided with four reinforcing steel bars 13, and the four reinforcing steel bars 13 are distributed in a surrounding manner. The four reinforcing bars 13 between the supporting plates 113 are sleeved with reinforcing rings 131, the reinforcing rings 131 are in a circular structure formed by bending the reinforcing bars, the inner walls of the reinforcing rings 131 are welded and fixed with the four reinforcing bars 13 between the supporting plates 113, the outer walls of the reinforcing rings 131 are welded and fixed with the bottom surface of the first steel plate 111, the side walls of the adjacent supporting plates 113, which are close to each other, and the upper surface of the second steel plate 112, and in addition, the reinforcing rings 131 are provided in plurality, and the plurality of reinforcing rings 131 are uniformly arranged along the length direction of the reinforcing bars 13.

As shown in fig. 2, the connecting portion 2 includes a buffer seat 21, an installation sleeve 22, a buffer layer 23 and an installation bolt 24, the buffer seat 21 is a circular block-shaped structure, the diameter of the buffer seat 21 is larger than that of the end seat 12, and an end surface of the buffer seat 21 is attached to and abutted against an end surface of the end seat 12 located outside the simply supported beam. As shown in fig. 4, the surface of the buffer seat 21 close to the end seat 12 is provided with a plurality of receiving holes 211, the openings of the receiving holes 211 are circular, and the axes of the receiving holes 211 are respectively coincident with the axes of the reinforcing bars 13 for receiving the ends of the reinforcing bars 13 passing through the end seat 12. The mounting sleeve 22 is a circular block-shaped structure, the axis of the mounting sleeve coincides with the axis of the buffer seat 21, and the mounting sleeve 22 is sleeved on the end seat 12 and fixed with the end face of the buffer seat 21 close to the end seat 12. The mounting sleeve 22 is provided with a fastening bolt 221, the end seat 12 is provided with a metal sleeve 222 and a metal pipe 223, the metal sleeve 222 is a sleeve-shaped structure with a circular opening, is made of copper material, is embedded in the arc-shaped surface of the end seat 12 and is fixed with the end seat 12, and the opening end surface of the metal sleeve 222 is attached to the arc-shaped surface of the end seat 12. The metal tube 223 is a circular tube made of alloy steel material, and is disposed inside the metal sheath 222 and fixed to the inner wall of the metal sheath 222. The fastening bolt 221 is made of alloy steel, the end of which vertically penetrates through the outer wall of the mounting sleeve 22 and penetrates into the metal pipe 223, and the fastening bolt 221 is screwed with the metal pipe 223. When the fastening bolt 221 is tightened, the mounting sleeve 22 is fixed with the end seat 12, and the elasticity modulus of copper is smaller than that of steel, so that the elasticity of the metal sleeve 222 is better than that of the metal pipe 223 and the fastening bolt 221, and when horizontal translation is generated between the buffer seat 21 and the end seat 12, the metal sleeve 222 deforms before the metal pipe 223 and the fastening bolt 221, thereby protecting the fastening bolt 221 and preventing the fastening bolt 221 from being broken. The buffer layers 23 are circular plate-shaped structures and made of elastic rubber materials, the circular surfaces of one side of each buffer layer are overlapped and fixed with the circular surfaces of the buffer seats 21 far away from the end seat 12, and a stainless steel sheet 231 and a polytetrafluoroethylene sheet 232 are arranged between the adjacent buffer layers 23. The stainless steel sheet 231 is made of stainless steel, the polytetrafluoroethylene plate 232 is made of polytetrafluoroethylene, the stainless steel sheet 231 is in a circular sheet shape, the polytetrafluoroethylene plate 232 is in a circular plate-shaped structure, the stainless steel sheet 231 and the polytetrafluoroethylene plate 232 are respectively fixed on the circular surfaces of the adjacent buffer layers 23, which are close to each other, and in addition, the stainless steel sheet 231 is attached to and abutted against the polytetrafluoroethylene plate 232. The mounting bolt 24 is made of alloy steel, the end part of the mounting bolt horizontally penetrates through the two adjacent buffer seats 21, the buffer layer 23 between the buffer seats 21, the stainless steel sheet 231 between the buffer layers 23 and the polytetrafluoroethylene plate 232, and the mounting bolt 24 is in clearance fit with the buffer seats 21, the buffer layers 23, the stainless steel sheet 231 and the polytetrafluoroethylene plate 232. The end of the mounting bolt 24 is sleeved with a mounting nut 241, the mounting nut 241 is in threaded fit with the mounting bolt 24, and when the mounting nut 241 is tightened, the adjacent buffer bases 21 are fixed.

When the simply supported beams are subjected to extension deformation, the end seats 12 between the simply supported beams are close to each other to drive the adjacent buffer seats 21 to be close to each other, and at the moment, the buffer layer 23 is extruded to deform, so that the stress on the buffer seats 21 is absorbed, and the bridge is more stable; when the vertical offset is generated between the simply supported beams due to the load change, the vertical offset is generated between the adjacent end seats 12 to drive the adjacent buffer seats 21 to offset, at the moment, the stainless steel sheet 231 and the polytetrafluoroethylene plate 232 slide due to the low friction coefficient between the stainless steel sheet 231 and the polytetrafluoroethylene plate 232 between the buffer layers 23, the offset between the buffer seats 21 is released, and the buffer seats 21 and the end seats 12 are prevented from being deformed due to the offset.

In above-mentioned technical scheme, be fixed with end seat 12 on the simply supported beam tip, and end seat 12 is connected fixedly with buffer seat 21, and the reinforcing bar 13 of wearing out the simply supported beam terminal surface passes end seat 12 and penetrates in buffer seat 21, in addition can dismantle between the buffer seat 21 and connect fixedly, make reinforcing bar 13 between simply supported beam and the simply supported beam all connect fixedly, improved the wholeness of the bridge of constructing the formation by this simply supported beam, also be favorable to promoting the structural stability of this bridge.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a simply supported beam steel bar connection structure, characterized by: the steel bar structure comprises a steel bar structure (1) arranged in a simply supported beam and a connecting part (2) arranged between adjacent simply supported beams, wherein the steel bar structure (1) comprises steel bars (13) arranged in and fixed with the simply supported beams and end seats (12) fixed on the end parts of the simply supported beams, and the steel bars (13) sequentially penetrate through the end surfaces and the end seats (12) of the simply supported beams; the connecting part (2) comprises buffer seats (21) detachably connected and fixed with the end seat (12) and buffer layers (23) arranged between the adjacent buffer seats (21), and the adjacent buffer seats (21) are detachably connected and fixed; one end of the reinforcing steel bar (13) penetrating out of the end seat (12) penetrates into the surface of the buffer seat (21) close to the end seat (12).

2. The simply supported beam steel bar connection structure of claim 1, wherein: connecting portion (2) still include construction bolt (24), construction bolt (24) tip passes adjacent in proper order buffer seat (21) and with the equal clearance fit of adjacent buffer seat (21), just construction bolt (24) tip cover is equipped with mounting nut (241) with construction bolt (24) threaded connection.

3. The simply supported beam steel bar connection structure of claim 2, wherein: a mounting sleeve (22) sleeved on the end seat (12) is fixed on the surface of the buffer seat (21) close to the end seat (12), a copper metal sleeve (222) is embedded and fixed in the surface of the end seat (12) close to the inner wall of the mounting sleeve (22), and a steel metal pipe (223) is fixed in the metal sleeve (222); and a fastening bolt (221) is arranged on the mounting sleeve (22), and the end part of the fastening bolt (221) penetrates through the outer wall of the mounting sleeve (22) to extend into the metal pipe (223) and be in threaded connection with the inner wall of the metal pipe (223).

4. The simply supported beam steel bar connection structure of claim 3, wherein: the buffer layer (23) is made of rubber, the buffer layer (23) and the buffer seat (21) are far away from the surface fixing of the end seat (12), the buffer layer (23) between the adjacent buffer seats (21) is provided with two buffer layers (23), and the two buffer layers (23) are abutted.

5. The simply supported beam steel bar connection structure of claim 4, wherein: a stainless steel sheet (231) and a polytetrafluoroethylene plate (232) are respectively fixed between the buffer layers (23), and the stainless steel sheet (231) is attached to and abutted against the polytetrafluoroethylene plate (232); the mounting bolt (24) passes through in proper order stainless steel sheet (231) and polytetrafluoroethylene board (232), just mounting bolt (24) with stainless steel sheet (231) and the equal clearance fit of polytetrafluoroethylene board (232).

6. The simply supported beam steel bar connection structure of claim 1, wherein: the steel bar structure (1) further comprises a steel beam (11) arranged in the simply supported beam, the steel beam (11) comprises a first steel plate (111) and a second steel plate (112) which are distributed vertically, and a plurality of supporting plates (113) arranged in the width direction of the simply supported beam are fixed between the first steel plate (111) and the second steel plate (112).

7. The simply supported beam steel bar connection structure of claim 6, wherein: the reinforcing steel bars (13) are uniformly distributed between the supporting plates (113), a plurality of reinforcing steel bars (13) between the adjacent supporting plates (113) are distributed in an annular shape, and a plurality of reinforcing steel bars (13) which are sleeved with the reinforcing steel bars (13) and are welded and fixed with the plurality of reinforcing steel bars (13) are welded and fixed between the adjacent supporting plates (113).

8. The simply supported beam steel bar connection structure of claim 1, wherein: one end of the end seat (12) penetrates into the end face of the simply supported beam and is fixed with the end face, the other end of the end seat is arranged outside the simply supported beam, and a limiting plate (121) is fixed at one end of the end seat (12) located in the simply supported beam; the limiting plate (121) is arranged in the simply supported beam and fixed with the simply supported beam.