CN219972951U - Tensioning member for temporary tensioning of section beam - Google Patents

Abstract

The utility model discloses a tensioning member for temporary tensioning of a section beam, which has the advantages that the whole structural design is simpler, the structural strength is high, tension plates with different specifications can be selected respectively according to different tensioning requirements and are connected to the outer side of a supporting plate, wherein a fixing hole arranged on a bottom plate can be used for temporary tensioning of the top of the section beam, the temporary tensioning on the horizontal direction of the surface of the section beam can be used for selecting one side of a transverse plate or a longitudinal plate as the tensioning direction according to the tensioning requirements, a first groove and a second groove in the axial direction of the transverse plate are convenient for guiding a tensioning rod piece, and the tensioning grooves in the longitudinal plate can improve the applicability to the size and the interval arrangement of the tensioning rod piece and are beneficial to improving the operation efficiency of temporary tensioning construction of the section beam.

Description

Tensioning member for temporary tensioning of section beam

Technical Field

The utility model relates to the technical field of segmental beam construction. More specifically, the present utility model relates to a tension member for temporary tensioning of a segmented beam.

Background

In the modern bridge construction process, the segment prefabrication technology is increasingly applied and promoted with the advantages of economy, high efficiency, environmental protection and the like, the segment beam is generally prefabricated and formed in segments, then the segment beam is transported to a construction site for segment assembly, temporary prestressing force is applied among the segments to temporarily fix the segments before permanent prestressing force is applied to connect the segments into a whole, at present, the conventional method for temporarily prestressing the segment prefabrication box beam is to use a concrete anchor block for a bottom plate and a tensioning pedestal structure for the top of the segment prefabrication box beam, the single structural forms are complex to manufacture, high in cost and poor in applicability, and particularly, the single pertinence setting obviously influences the construction efficiency under the condition of multiple tensioning points and different tensioning demands.

Disclosure of Invention

The utility model aims to provide a tensioning member for temporary tensioning of a section beam, which aims to solve the technical problem that the tensioning efficiency is low due to narrow applicability of the tensioning member for temporary tensioning of the section beam in the prior art.

To achieve these objects and other advantages and in accordance with the purpose of the utility model, there is provided a tension member for temporary tensioning of a segmental beam, comprising a bottom plate, on which a support plate is fixed upward to enclose a closed rectangle, the support plate comprising a pair of cross plates and a pair of longitudinal plates disposed opposite to each other, a first groove is formed downward in the middle of the top ends of the cross plates, reinforcing plates are welded to the left and right inner sides of the cross plates in opposite directions and a second groove is formed between the pair of reinforcing plates to penetrate through a screw reinforcement, the second groove is used to penetrate a fastening nut on the screw reinforcement, a tension groove is formed downward in the top of the longitudinal plates, the tension groove is symmetrically formed on the longitudinal plates in a horizontal direction, the length of the bottom of the tension groove in a horizontal direction is larger than the diameter of the screw reinforcement, a fixing hole is symmetrically formed on the inner side of the support plate, the upper surface edge of the bottom plate forms a circle of rectangular annular slot area on the outer side of the support plate, an equal-thickness tension plate is connected to the slot area, the tension plate is closely disposed with the cross plates or the longitudinal plates on the corresponding sides, the tension plate on the corresponding sides, the tension groove is formed to be the same as the height of the first groove or the bottom of the corresponding groove on the side.

Preferably, an angle reinforcing member is welded between the inner sides of the adjacent reinforcing plates and the inner sides of the longitudinal plates, and a middle reinforcing member is welded between the bottom plate and the middle parts of the inner sides of the pair of longitudinal plates, respectively.

Preferably, the four vertex angles of the slot area are respectively provided with a bump upwards, the tensioning plate comprises a transverse tensioning plate and a longitudinal tensioning plate, the transverse tensioning plate is in close contact connection with the transverse plate, the vertex angles at the left side and the right side of the lower part are respectively provided with an angle slot in a matched mode corresponding to the bumps, and the longitudinal tensioning plate is in close contact connection with the longitudinal plate and has the same length as the interval length of the two bumps in the longitudinal direction.

Preferably, both end surfaces of an upper portion of the cross plate are disposed obliquely downward, and an upper portion of the corner reinforcement is identical in shape to the cross plate.

Preferably, a welding groove is formed in the center of the bottom plate upwards, a limiting block is welded downwards through the welding groove, and the limiting block is used for being matched with a slotted hole preset on the upper surface of the section beam.

Preferably, the top surface of the supporting plate is welded with a top plate, and a connecting piece is arranged on the top plate.

The utility model at least comprises the following beneficial effects: the tensioning member for temporary tensioning of the section beam has simple structural design and high structural strength, and can be connected to the outer side of the supporting plate by respectively selecting the tensioning plates with different specifications according to different tensioning requirements, wherein the fixing holes arranged on the bottom plate can be used for temporary tensioning of the top of the section beam, the temporary tensioning on the horizontal direction of the surface of the section beam can be used for selecting one side of the transverse plate or the longitudinal plate as the tensioning direction according to the tensioning requirements, the first groove and the second groove in the axial direction of the transverse plate are convenient for guiding the tensioning rod pieces, and the tensioning grooves in the longitudinal plate can improve the applicability of the dimension and the interval arrangement of the tensioning rod pieces and are beneficial to improving the operation efficiency of temporary tensioning construction of the section beam.

Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model.

Drawings

FIG. 1 is a top view of the structure of the present utility model;

FIG. 2 is a top view of the present utility model without the tension plate;

FIG. 3 is a front view block diagram of the present utility model;

fig. 4 is a side view structural diagram of the present utility model.

Description of the specification reference numerals: 1. the steel plate comprises a segmental beam, 2, a bottom plate, 3, a transverse plate, 4, a longitudinal plate, 5, a first groove, 6, a reinforcing plate, 7, a second groove, 8, a tensioning groove, 9, a fixing hole, 10, a slot area, 11, a tensioning plate, 12, a tensioning hole, 13, an angle reinforcing member, 14, a middle fixing piece, 15, a convex block, 16, a transverse tensioning plate, 17, a longitudinal tensioning plate, 18, a welding groove, 19, a limiting block, 20, a top plate, 21 and a connecting piece.

Detailed Description

The present utility model is described in further detail below with reference to the drawings to enable those skilled in the art to practice the utility model by referring to the description.

In the description of the present utility model, the terms "transverse", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus are not to be construed as limiting the present utility model.

As shown in fig. 1-4, the tensioning member for temporary tensioning of a segmental beam of the utility model comprises a bottom plate 2, wherein a supporting plate which surrounds a closed rectangle is fixed upwards on the bottom plate 2, the supporting plate comprises a pair of transverse plates 3 and a pair of longitudinal plates 4 which are respectively and oppositely arranged, a first groove 5 is formed downwards in the middle of the top end of each transverse plate 3, reinforcing plates 6 are welded at the left and right ends of the inner side of each transverse plate 3 in opposite directions and are vertically penetrated at intervals of the pair of reinforcing plates 6, the first groove 5 is used for penetrating threaded steel bars, the second groove 7 is used for penetrating fastening nuts on the threaded steel bars, a tensioning groove 8 is formed downwards at the top of each longitudinal plate 4, the tensioning groove 8 is symmetrically formed on the longitudinal plates 4 in the horizontal direction, the length of the tensioning groove 8 in the horizontal direction is larger than the diameter of the threaded steel bars, a fixing hole 9 is formed at the inner side of the supporting plate 2, a circle of rectangular annular slot area 10 is formed at the outer side of the upper surface edge of the bottom plate 2, a tensioning plate 11 is connected to the slot area 10, the tensioning plate 11 is tightly attached to the tensioning groove 11, the tensioning plate 11 is tightly attached to the corresponding plate 3 or the corresponding side of the longitudinal plates 4, the tensioning groove 12 is formed at the same height as the tensioning groove 12 is formed at the bottom of the corresponding groove 12, and the corresponding slot 12 is tightly attached to the first groove is formed at the bottom of the corresponding side 12.

The support plate is welded on the bottom plate 2 corresponding to the stretching of the top of the segmental beam 1, the reinforcing plate 6 is welded on the inner side of the support plate to form a temporary stretching component, the fixing holes 9 of the bottom plate 2 are aligned with the to-be-stretched holes 12 on the segmental beam 1, threaded reinforcing steel bars are penetrated together, the threaded reinforcing steel bars are screwed into the fastening nuts from the inner side of the support plate so as to fix the position of the bottom plate 2, and then the threaded reinforcing steel bars are penetrated into the first groove 5 and the second groove 7 according to the requirement, as the first groove 5 and the second groove 7 are arranged in a structure with the penetrating upper ends, the threaded reinforcing steel bars can be conveniently led into the first groove 5 downwards, and the fastening nuts on the threaded reinforcing steel bars can be used for stretching the tension plates 11 with the required proper intervals and the required number of the stretching holes 12 between Ji Yaru according to the number and interval of the current stretching reinforcing steel bars when the transverse stretching is required, the tensioning plate 11 is correspondingly fixed in the slot area 10, the tensioning plate 11 is tightly attached to the transverse plate 3 or the longitudinal plate 4 at the corresponding side, the outer side surface of the tensioning plate 11 is just flush with the peripheral edge of the bottom plate 2 to form a tensioning box with a regular structure, a tensioning abutting surface is arranged according to requirements, the connecting strength can be welded and fixed, if the number of the threaded steel bars tensioned in the current direction is one, the direction of the transverse plate 3 is the tensioning direction, the threaded steel bars sequentially pass through the tensioning holes 12, the first grooves 5 and the second grooves 7 on the tensioning plate 11 tightly attached to the transverse plate 3, one end of the threaded steel bars can be tightly limited with the transverse plate 3 through fastening nuts, then a tensioning jack is arranged at the other end for tensioning, if the threaded steel bars need to be tensioned in pairs, the side of the longitudinal plate 4 is taken as the tensioning surface, the threaded steel bars pass through the tensioning holes 12 on the tensioning plate 11 at one side of the longitudinal plate 4, because the bottom of the stretching groove 8 arranged on the longitudinal plate 4 extends for a certain size along the horizontal direction, the stretching groove can adapt to the position change in a certain range in the horizontal direction, so that the stretching holes 12 on the stretching plate 11 can be positioned in the opening range of the stretching groove 8, and the adaptability to different stretching specification requirements is improved.

The tensioning member for temporary tensioning of the section beam 1 has simple structural design and high structural strength, and can respectively select tensioning plates 11 with different specifications according to different tensioning requirements to be connected to the outer side of the supporting plate, wherein the fixing holes 9 arranged on the bottom plate 2 can be used for temporary tensioning of the top of the section beam 1, the side of the transverse plate 3 or the side of the longitudinal plate 4 on the horizontal direction of the surface of the section beam 1 can be selected as the tensioning direction according to the tensioning requirements, the first grooves 5 and the second grooves 7 on the axial direction of the transverse plate 3 are convenient for guiding tensioning rods, and the tensioning grooves 8 on the longitudinal plate 4 can improve the applicability to the size and the interval arrangement of the tensioning rods and are beneficial to improving the operation efficiency of temporary tensioning construction of the section beam 1.

In another embodiment, as shown in fig. 1-2, an angle reinforcing member 13 is welded between the inner sides of the adjacent reinforcing plates 6 and the inner sides of the longitudinal plates 4, and a middle reinforcing member 14 is welded between the bottom plate 2 and the middle parts of the inner sides of the pair of longitudinal plates 4. The corner reinforcing members 13 are arranged at the top corners of the inner sides of the supporting plates, and the fastening members 14 are arranged in the middle of the inner sides, so that the connection supporting strength of the inside of the structure is further improved.

In another technical scheme, as shown in fig. 2, the four vertex angles of the slot area 10 are respectively provided with a bump 15 upwards, the tensioning plate 11 comprises a transverse tensioning plate 16 and a longitudinal tensioning plate 17, the transverse tensioning plate 16 is in close contact connection with the transverse plate 3, the vertex angles of the left side and the right side of the lower part are respectively provided with an angle slot in a matched manner corresponding to the bump 15, the longitudinal tensioning plate 17 is in close contact connection with the longitudinal plate 4, and the length of the longitudinal tensioning plate is equal to the interval length of the two bumps 15 in the longitudinal direction.

The transverse tensioning plates 16 are connected with the transverse plates 3, the longitudinal tensioning plates 17 are connected with the longitudinal plates 4, the two top angles at the lower part of the transverse tensioning plates 16 are provided with angle grooves which are just matched with the convex blocks 15, so that the transverse tensioning plates 16 are aligned quickly, then the longitudinal tensioning plates 17 are inserted into the edges of the transverse tensioning plates 16 at the two sides, the structure butt joint is compact and regular, and only the longitudinal tensioning plates 17 need to be replaced according to the field temporary tensioning requirement and then welded and fixed.

In another embodiment, as shown in fig. 4, the upper end surfaces of the transverse plate 3 are inclined downward, and the upper portion of the corner reinforcement 13 is identical to the transverse plate 3 in shape. The upper end of the transverse plate 3 is arranged to be similar to a trapezoid plate-shaped structure, so that the material cost can be reduced.

In another technical scheme, as shown in fig. 3-4, a welding groove 18 is formed upward at the bottom center of the bottom plate 2, a limiting block 19 is welded downward through the welding groove 18, and the limiting block 19 is used for being matched with a slotted hole preset on the upper surface of the section beam 1. By arranging the welding grooves 18 and the limiting blocks 19, standardized manufacturing and installation are facilitated, the welding device is convenient to rapidly place at the corresponding positions of the section beam 1 required to be tensioned, and the sizes and positions of the fixing holes 9 and the tensioning holes 12 on the tensioning plates 11 are uniformly distributed according to the standards.

In another technical solution, as shown in fig. 3, a top plate 20 is welded on the top surface of the supporting plate, and a connecting piece 21 is disposed on the top plate 20. The structural connection strength between backup pad tops can be strengthened to roof 20 that sets up, and the connecting piece 21 that sets up can be convenient for on-the-spot carrying installation.

Although embodiments of the present utility model have been disclosed above, it is not limited to the details and embodiments shown and described, it is well suited to various fields of use for which the utility model would be readily apparent to those skilled in the art, and accordingly, the utility model is not limited to the specific details and drawings shown and described herein, without departing from the general concepts defined in the claims and their equivalents.

Claims (6)

1. The utility model provides a stretch-draw component for interim stretch-draw of festival section roof beam, a serial communication port, including the bottom plate, upwards be fixed with the backup pad that encloses into closed rectangle on the bottom plate, the backup pad includes a pair of diaphragm and a pair of longitudinal plate that set up relatively respectively, first recess has been seted up downwards at the top middle part of diaphragm, the both ends weld the gusset plate in opposite directions about the inboard of diaphragm and separate into the second recess that vertically link up between a pair of gusset plate, first recess is used for penetrating the screw thread reinforcing bar, the second recess is used for passing the fastening nut on the screw thread reinforcing bar, stretch-draw groove has been seted up downwards at the top of longitudinal plate, stretch-draw groove is offered along horizontal direction symmetry on the longitudinal plate and stretch-draw groove's bottom is greater than the diameter of screw thread reinforcing bar in the horizontal direction, the fixed orifices has been offered to inboard symmetry that is located the backup pad on the bottom plate, the upper surface edge of bottom plate forms the annular slot district of round rectangle, be connected with the stretch-draw plate of equal thickness on the slot district, stretch-draw plate and the lateral plate or longitudinal plate of corresponding side closely set up, stretch-draw hole has been seted up on the stretch-draw hole Zhang Lakong and the bottom height the first recess of corresponding side.

2. A tensioning member for temporary tensioning of a segmented beam according to claim 1, wherein an angle reinforcement is welded between the inner sides of the adjacent reinforcing plates and the inner sides of the longitudinal plates, and a middle reinforcement is welded between the bottom plate and the middle portions of the inner sides of the pair of longitudinal plates, respectively.

3. The tension member for temporary tensioning of a segmental beam according to claim 1, wherein the four apex angles of the slot area are respectively provided with a bump upwards, the tension plate comprises a transverse tension plate and a longitudinal tension plate, the transverse tension plate is in close contact connection with the transverse plate, the apex angles of the left and right sides of the lower part are respectively provided with an angle slot in a matched manner corresponding to the bumps, and the longitudinal tension plate is in close contact connection with the longitudinal plate and has a length equal to the interval length of the two bumps in the longitudinal direction.

4. A tensioning member for temporary tensioning of a segment beam according to claim 1, wherein both end surfaces of an upper portion of the cross plate are provided obliquely downward, and an upper portion of the corner reinforcement member is the same shape as the cross plate.

5. The tension member for temporary tension of a segment beam according to claim 1, wherein a welding groove is upwardly formed at the bottom center of the bottom plate, and a stopper is downwardly welded through the welding groove, and the stopper is adapted to be disposed in cooperation with a slot hole preset in the upper surface of the segment beam.

6. A tensioning member for temporary tensioning of a segmented beam according to claim 1, wherein the top surface of the support plate is welded with a top plate, and a connecting member is provided on the top plate.