CN212000653U - Load distribution beam for applying prestress to Bailey beam - Google Patents
Load distribution beam for applying prestress to Bailey beam Download PDFInfo
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- CN212000653U CN212000653U CN202020428978.9U CN202020428978U CN212000653U CN 212000653 U CN212000653 U CN 212000653U CN 202020428978 U CN202020428978 U CN 202020428978U CN 212000653 U CN212000653 U CN 212000653U
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Abstract
The utility model discloses a load distribution beam for applying prestress on a Bailey beam, which comprises two transverse distribution beams, a plurality of longitudinal distribution beams and two longitudinal support rods; the transverse distribution beams and the longitudinal support rods are enclosed into a rectangular frame structure, so that the relative positions of the upper transverse distribution beam and the lower transverse distribution beam are limited; the longitudinal distribution beams are vertically arranged in parallel, the upper end and the lower end of each longitudinal distribution beam are fixedly connected with two transverse distribution beams respectively, and the longitudinal distribution beams are used for being connected with steel strands applying prestress; the high-strength bolts are arranged on the transverse distribution beam and are in contact with the vertical rods at the end parts of the bailey pieces; when the longitudinal distribution beam is stressed, the force is transmitted to the longitudinal transverse distribution beam through the transverse longitudinal distribution beam, and then the transverse distribution beam transmits the force to the vertical rod at the end part of the Bailey sheet through the high-strength special bolt, so that the end part of the Bailey beam is stressed; the utility model discloses simple structure, the atress is reasonable, and convenient to use, flexibility can fully transmit the beiLei beam tip effectively with power.
Description
Technical Field
The utility model belongs to the technical field of the cast-in-place beam brace construction of bridge engineering, in particular to a load distribution roof beam that is used for Bailey roof beam to exert prestressing force.
Background
With the rapid development of bridge construction technology, various bridge support systems emerge in succession; in recent years, bridge construction environments are more and more complex, river-crossing, coastal and road-crossing construction becomes a normal state, and the Bailey beam support is widely adopted because the Bailey beam support can just meet the construction requirements of the bridge support in the complex construction environments.
However, in some large-span construction applications, such as crossing large rivers and valleys or crossing highways and railways, the deflection in the midspan is larger after the span is increased due to the influence of the structural characteristics of the simply supported beams. The common solution is to apply prestress to the bailey beam, adopt a double-layer bailey beam or add a reinforcing chord, and the like, when the bailey beam is applied prestress by using a steel strand stretching method, in the steel strand stretching process, the traditional transverse distribution beam cannot be well contacted with the end part of the bailey beam, so that the defect that the tension generated by the steel strand cannot be sufficiently and effectively transmitted to the end part of the bailey beam through the distribution beam occurs.
SUMMERY OF THE UTILITY MODEL
To exist not enough among the prior art, the utility model aims to provide a load distribution roof beam for bailey roof beam applys prestressing force to when adopting steel strand wires stretching method to bailey roof beam to exert prestressing force among the solution prior art, traditional horizontal distribution roof beam can not realize with the better contact of bailey roof beam tip, and then leads to the unable tensile technical problem of steel strand wires of effective transmission of horizontal distribution roof beam.
In order to achieve the above purpose, the technical scheme of the utility model is that:
the utility model provides a load distribution beam for applying prestress on a Bailey beam, which comprises two transverse distribution beams, a plurality of longitudinal distribution beams and two longitudinal support rods; the two transverse distribution beams are arranged in parallel up and down, and the plurality of longitudinal distribution beams are uniformly arranged at one side of the two transverse distribution beams at intervals; the longitudinal distribution beams are vertically arranged in parallel, the upper end and the lower end of each longitudinal distribution beam are fixedly connected with two transverse distribution beams respectively, and the longitudinal distribution beams are used for being connected with steel strands applying prestress;
the two longitudinal support rods are respectively arranged at two ends of the transverse distribution beam, and the two transverse distribution beams and the two longitudinal support rods form a rectangular frame in a surrounding mode; and a plurality of high-strength bolts are uniformly arranged on each transverse distribution beam along the axis direction of the transverse distribution beam and are in direct contact with vertical rods at the ends of the Bailey sheets at the ends of the Bailey beams.
Furthermore, each transverse distribution beam comprises two transverse I-shaped steels, a plurality of middle supporting clamping pieces and end fixing pieces; the two transverse H-shaped steels are arranged up and down symmetrically, and the webs of the two transverse H-shaped steels are arranged on the same vertical plane; the high-strength bolts are uniformly arranged between the two transverse I-shaped steels;
the middle supporting clamping pieces are vertically and uniformly arranged between the two transverse H-shaped steels, the upper ends of the middle supporting clamping pieces are vertically and fixedly connected with the lower flange of one transverse H-shaped steel, and the lower ends of the middle supporting clamping pieces are vertically and fixedly connected with the upper flange of the other transverse H-shaped steel; the ends of the two transverse I-shaped steels are connected together through an end fixing sheet.
Furthermore, each longitudinal distribution beam comprises two vertical I-shaped steels and a tensioning anchoring base plate, the two vertical I-shaped steels are arranged in bilateral symmetry, and webs of the two vertical I-shaped steels are arranged in parallel at intervals; the upper end of the vertical I-steel is fixedly connected with one transverse distribution beam, and the lower end of the vertical I-steel is fixedly connected with the other transverse distribution beam; and each longitudinal distribution beam is respectively provided with a tensioning anchoring base plate which is arranged in the middle of two vertical I-shaped steels, and the center of each tensioning anchoring base plate is provided with a tensioning hole for fixedly penetrating a steel strand for applying prestress into the tensioning hole.
Furthermore, the longitudinal support rods are made of I-shaped steel, and the length of the I-shaped steel is matched with the distance between the two transverse distribution beams; the upper end of the longitudinal support rod is welded and fixed with the bottom of one transverse distribution beam, and the lower end of the longitudinal support rod is welded and fixed with the top of the other transverse distribution beam.
Further, the high-strength bolt comprises a threaded column, an end nut, two middle nuts and an end base; the threaded column horizontally penetrates between the two transverse I-shaped steels, the end screw caps and the end base are respectively arranged at two ends of the threaded column, and the end screw caps are arranged on the same side of the longitudinal distribution beam; the end part base is arranged close to one side of the Bailey beam and is in contact with a Bailey sheet end part vertical rod at the end part of the Bailey beam;
two middle nuts penetrate through the threaded column and are respectively arranged on two sides of the transverse I-shaped steel, and the threaded column is fixedly connected with the transverse I-shaped steel through the two middle nuts.
Furthermore, a gasket is arranged between the middle nut and the transverse I-shaped steel.
Further, the end base comprises a base nut and a base plate, the base nut is in threaded connection with the threaded column, the base plate is arranged between the base nut and the vertical rod at the end part of the Bailey beam, one side of the base plate is fixedly welded with the base nut, and the other side of the base plate is in direct contact with the vertical rod at the end part of the Bailey beam.
Further, the backing plate is a circular backing plate.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model provides a load distribution beam for applying prestress to a Bailey beam, which adopts a rectangular frame structure formed by surrounding a transverse distribution beam and a longitudinal support rod, realizes the limitation of the relative positions of an upper transverse distribution beam and a lower transverse distribution beam, leads the transverse distribution beam and the longitudinal support rod to form an integral structure and enhances the stability of the integral structure; the high-strength bolts are arranged on the transverse distribution beam and are in contact with vertical rods at the ends of the Bailey pieces at the ends of the Bailey beams; the longitudinal distribution beams are arranged on one side of the transverse distribution beam, when the longitudinal distribution beams are stressed, force is transmitted to the longitudinal transverse distribution beams through the transverse longitudinal distribution beams, and then the transverse distribution beams transmit the force to vertical rods at ends of the Bailey sheets at the ends of the Bailey beams through the high-strength bolts, so that the ends of the Bailey beams are stressed; the stable and effective contact between the load distribution beam and the end part of the Bailey beam in the force transmission process is ensured, and the virtual contact between the distribution beam and the vertical rod at the end part of the Bailey sheet at the end part of the Bailey beam is avoided; the utility model discloses simple structure, the atress is reasonable, and convenient to use, flexibility can fully transmit the beiLei beam tip effectively with power.
Furthermore, the two transverse I-shaped steel wing plates are arranged at intervals to the wing plates to form a main body structure of each transverse distribution beam, and the middle supporting clamping pieces and the end fixing pieces are fixedly connected and formed, so that the overall stability of the transverse distribution beam is effectively improved.
Furthermore, two vertical I-steel waist plates are arranged at intervals to the waist plates to form a main body structure of each longitudinal distribution beam, and the longitudinal distribution beams are effectively improved in overall stability by adopting a tensioning anchoring base plate and a transverse distribution beam to be fixedly connected and formed.
Furthermore, two middle nuts are respectively arranged on two sides of the transverse I-shaped steel and are in direct contact with the two sides of the transverse I-shaped steel, so that the effect of fixing the threaded column is achieved, the vertical and horizontal displacement of the threaded column is limited, and the threaded column is guaranteed to be in vertical contact with the vertical rod at the end part of the Bailey sheet; meanwhile, the distance between the load distribution beam and the vertical rod at the end part of the Bailey sheet can be adjusted by adjusting the middle nut, so that the applicability and the flexibility of the load distribution beam in practical application are improved; through setting up the tip base, effectively expand the cross sectional area who energetically transmits, avoided because power is too big, screw thread post afterbody cross sectional area undersize, lead to pressure too big, improved the security of device.
Furthermore, the gasket is arranged between the middle nut and the transverse H-shaped steel, so that the two nuts in direct contact with the two sides of the transverse H-shaped steel can be conveniently disassembled, and the phenomenon that the nuts are locked due to excessive screwing and are not easy to loosen and disassemble between the nuts and the wing plate of the transverse H-shaped steel is prevented.
Furthermore, the nut in the end base plays a role in connecting the circular base plate and the threaded column, so that the circular base plate is accurately and effectively in vertical contact with the threaded column; meanwhile, the nut in the end base has the function of expanding the cross-sectional area of force transmission, and the phenomenon that the circular cushion plate is pushed through due to overlarge pressure caused by the fact that the cross-sectional area of the tail part of the threaded column is too small due to overlarge force is avoided.
Furthermore, the circular base plate is adopted in the end base, so that the stress concentration phenomenon is effectively avoided, and the force is effectively transmitted to the Bailey beam.
Drawings
Fig. 1 is a schematic view of an elevation axial-view structure of a load distribution beam for applying prestress to a beret beam according to the present invention;
fig. 2 is a schematic front view of the load distribution beam for applying prestress to the beret beam according to the present invention;
fig. 3 is a schematic side view of the load distribution beam for applying prestress to the beret beam according to the present invention;
fig. 4 is a schematic top view of the load distributing beam for prestressing the beret beam according to the present invention;
fig. 5 is a schematic structural view of a transverse beam in the load distribution beam for applying prestress to the beret beam according to the present invention;
fig. 6 is a schematic structural view of a longitudinal beam in the load distribution beam for applying prestress to the beret beam according to the present invention;
fig. 7 is a schematic view of a bolt structure used in a bailey beam prestressed load distribution beam of the present invention.
Wherein, 1 transverse distribution beam, 2 longitudinal distribution beam, 3 longitudinal support rod, 4 bolt; 11 transverse I-shaped steel, 12 middle supporting clamping pieces and 13 end fixing pieces; 21 longitudinal I-shaped steel, 22 tensioning and anchoring backing plates and 23 tensioning holes; 41 threaded post, 42 end nut, 43 middle nut, 44 washer, 45 end base.
Detailed Description
The present invention will be described in detail with reference to the drawings and specific embodiments so that the objects, features and effects of the invention can be fully understood. It is to be understood that the embodiments described are only a few embodiments of the present invention and not all embodiments described, and that various equivalent changes and modifications based on the essence of the present invention will be apparent to those skilled in the art and are within the scope of the appended claims.
As shown in the attached drawings 1-7, the utility model provides a load distribution beam for applying prestress to a beret beam, which comprises two transverse distribution beams 1, a plurality of longitudinal distribution beams 2, two longitudinal support rods 3 and a plurality of high-strength bolts 4, wherein the two transverse distribution beams 1 are arranged in parallel up and down; the two longitudinal support rods 3 are parallel left and right and are respectively arranged at two ends of the transverse distribution beam 1, and the two transverse distribution beams 1 and the two longitudinal support rods 3 form a rectangular frame; the transverse distribution beams 1 and the longitudinal support rods 3 are enclosed into a rectangular frame structure, so that the transverse distribution beams 1 and the longitudinal support rods 3 form an integral structure, the limitation on the relative positions of the upper transverse distribution beam 1 and the lower transverse distribution beam 1 is realized, and the stability of the transverse distribution beam is enhanced; the longitudinal distribution beams 2 are uniformly arranged at intervals on one sides of the two transverse distribution beams 1, and the longitudinal distribution beams 2 are arranged on one side far away from the end part of the Bailey beam; the longitudinal distribution beams 2 are vertically arranged in parallel, the upper end and the lower end of each longitudinal distribution beam 2 are respectively welded and fixed with two transverse distribution beams 1, and the longitudinal distribution beams 2 are used for being connected with steel strands applying prestress; a plurality of high-strength bolts 4 are uniformly arranged on each transverse distribution beam 1 along the axis direction of the transverse distribution beam, and the high-strength bolts 4 are in direct contact with vertical rods at the ends of the bailey pieces at the ends of the bailey beams
The transverse distribution beam 1 comprises two transverse I-shaped steel 11, a plurality of middle supporting clamping pieces 12 and end fixing pieces 13; the two transverse H-shaped steels 11 are symmetrically arranged up and down, the webs of the two transverse H-shaped steels 11 are arranged on the same vertical plane, and the wing plates of the two transverse H-shaped steels 11 are arranged at intervals to the wing plates to form a main body structure of each transverse distribution beam; the high-strength bolts 4 are uniformly arranged between the two transverse I-shaped steels 11; the middle supporting clamping pieces 12 are vertically and uniformly arranged between the two transverse H-shaped steels 11, the upper ends of the middle supporting clamping pieces 12 are vertically welded and fixed with the lower flange of the transverse H-shaped steel 11 arranged at the upper part, and the lower ends of the middle supporting clamping pieces 12 are vertically welded and fixed with the upper flange of the transverse H-shaped steel 11 arranged at the lower part; the ends of the two transverse I-shaped steels 11 are connected together through an end fixing sheet 13; the two transverse I-shaped steels 11 are fixedly connected and formed by adopting the middle supporting clamping piece 12 and the end fixing piece 13, so that the overall stability of the transverse distribution beam 1 is effectively improved.
The longitudinal distribution beam 2 comprises two vertical I-beams 21 and a tensioning anchoring base plate 22, the two vertical I-beams 21 are arranged in bilateral symmetry, webs of the two vertical I-beams 21 are arranged in parallel at intervals, and the two vertical I-beams 21 are arranged at intervals from a waist plate to form a main body structure of each longitudinal distribution beam 2; the upper end of the vertical I-shaped steel 21 is fixedly connected with the transverse distribution beam 1 arranged at the upper part in a welding way, and the lower end of the vertical I-shaped steel is fixedly connected with the transverse distribution beam 1 arranged at the lower part in a welding way; each longitudinal distribution beam 2 is provided with a tensioning anchoring backing plate 22, the tensioning anchoring backing plate 22 is arranged in the middle of each two vertical I-beams 21, and the two vertical I-beams are fixedly connected and formed by the tensioning anchoring backing plate 22 and the transverse distribution beam 1, so that the overall stability of the longitudinal distribution beam 2 is effectively improved; the center of the tension anchor backing plate 22 is provided with a tension hole 23, and a steel strand for applying prestress is fixedly arranged in the tension hole 23 in a penetrating way.
The longitudinal support rods 3 are made of I-shaped steel, and the length of the I-shaped steel is matched with the distance between the two transverse distribution beams 1; the upper end of the longitudinal support rod 3 is welded and fixed with the bottom of one transverse distribution beam 1, and the lower end is welded and fixed with the top of the other transverse distribution beam 1.
The high-strength bolt 4 comprises a threaded column 41, an end nut 42, two middle nuts 43, a gasket 44 and an end base 45; the threaded column 41 horizontally penetrates between the two transverse I-shaped steels 11, the end screw caps 42 and the end bases 45 are respectively arranged at two ends of the threaded column 41, and the end screw caps 42 are arranged on the same side of the longitudinal distribution beam 2; the end base 45 is arranged close to one side of the Bailey beam and is in contact with a Bailey sheet end vertical rod at the end part of the Bailey beam; two middle nuts 43 are arranged on the threaded column 41 in a penetrating manner and are respectively arranged on two sides of the transverse I-shaped steel 11, the threaded column 41 is fixedly connected with the transverse I-shaped steel 11 through the two middle nuts 43, and a gasket 44 is arranged between the middle nuts 43 and the transverse I-shaped steel 11.
The end base 45 comprises a base nut and a base plate, the base nut is in threaded connection with the threaded column 41, the base plate is arranged between the base nut and the vertical rod at the end part of the Bailey beam, one side of the base plate is fixedly welded with the base nut, and the other side of the base plate is in direct contact with the vertical rod at the end part of the Bailey beam; preferably, the backing plate adopts circular backing plate, through adopting circular backing plate in the tip base, has effectively avoided stress concentration phenomenon, has ensured to transmit the power for the bailey beam effectively.
Working principle and using process
Adopt steel strand wires to stretch out the pulling method to exert the prestressing force process to bailey roof beam, the use of load distribution roof beam specifically as follows:
and 4, penetrating the steel strands through tensioning holes of the tensioning and anchoring base plates on the longitudinal distribution beams, and fixing and tensioning by adopting a tensioning anchorage device, wherein during tensioning, all end part bases are ensured to be in direct contact with vertical rods at the end parts of the bailey sheets at the end parts of the bailey beams.
The utility model provides a load distribution beam for applying prestress to a Bailey beam, which has the defect that the pulling force generated by steel strands cannot be fully and effectively transmitted to the end part of the Bailey beam through the distribution beam in the existing method for applying prestress to the Bailey beam by using a steel strand pulling method; the utility model can be used in the load distribution process of applying prestress on the Bailey beam by adopting the steel strand stretching method, the load distribution beam can better closely contact with the end part of the Bailey beam, thereby the tension generated by the steel strand is fully and effectively transmitted to the end part of the Bailey beam,
examples
The embodiment provides a load distribution beam for applying prestress to a Bailey beam, in particular to a load distribution beam for applying prestress to the Bailey beam by adopting a steel strand stretching method; the device comprises two transverse distribution beams 1, three longitudinal distribution beams 2, two longitudinal support rods 3 and a plurality of high-strength bolts 4; the two transverse distribution beams 1 are fixedly welded at the upper end and the lower end of a longitudinal support rod 3, the longitudinal support rod 3 is fixedly welded between the upper transverse distribution beam 1 and the lower transverse distribution beam 1 and is positioned at the two ends of the transverse distribution beams 1, and the two transverse distribution beams 1 and the two longitudinal support rods 3 form a rectangular frame in an enclosing manner; the three longitudinal distribution beams 2 are uniformly welded and fixed at the front parts of the transverse distribution beams 1; the high-strength bolts 4 are uniformly anchored on the transverse distribution beam 1.
Each transverse distribution beam 1 comprises two sections of transverse I-shaped steel 11, a plurality of middle supporting clamping pieces 12 and end fixing pieces 13, and wing plates of the two sections of transverse I-shaped steel 11 are arranged opposite to wing plates with a certain distance to form a main body structure of the transverse distribution beam 1; the middle supporting clamping piece 12 is welded and fixed at a gap between the two sections of transverse I-shaped steel 11, namely the gap in the middle of the main body structure of the transverse distribution beam 1; the end fixing sheets 13 are welded and fixed at two ends of the two sections of transverse I-shaped steel 11, namely the end parts at two sides of the main structure of the transverse distribution beam 1.
Each longitudinal distribution beam 2 comprises two sections of vertical I-shaped steel 21, a tension anchoring base plate 22 and a tension hole 23, wherein the two sections of vertical I-shaped steel 21 are arranged by a waist plate to the waist plate at a certain interval to form a main body structure of the longitudinal distribution beam 2; the tensioning and anchoring backing plate 22 is welded and fixed in the middle of the two sections of vertical I-steel 21, namely in the middle of the main structure of the longitudinal distribution beam 2, and the width of the tensioning and anchoring backing plate 22 is matched with the width of the main structure of the longitudinal distribution beam 2; the tensioning hole 23 is positioned in the center of the tensioning anchoring base plate 22, and the diameter of the hole is equal to the distance between the two sections of vertical I-shaped steel 21.
The longitudinal support rod 3 is made of I-steel, the type of the I-steel is consistent with that of the I-steel 11 in the transverse distribution beam 1, and the height of the I-steel is matched with the distance between the two longitudinal transverse distribution beams 1.
The high-strength bolt 4 comprises a threaded column 41, an end nut 42, two middle nuts 43, a gasket 44 and an end base 45; the threaded column 41 horizontally penetrates between the two transverse I-shaped steels 11, the end screw caps 42 and the end bases 45 are respectively arranged at two ends of the threaded column 41, and the end screw caps 42 are arranged on the same side of the longitudinal distribution beam 2; the end base 45 is arranged close to one side of the Bailey beam and is in contact with a Bailey sheet end vertical rod at the end part of the Bailey beam; the two middle nuts 43 penetrate through the threaded column 41 and are respectively arranged on two sides of the transverse I-shaped steel 11, the threaded column 41 and the transverse I-shaped steel 11 are fixedly connected together through the two middle nuts 43, and a gasket 44 is arranged between the middle nuts 43 and the transverse I-shaped steel 11; tip base 45 includes base nut and circular backing plate, adopts threaded connection between base nut and the screw thread post 41, and circular backing plate setting is between the Bailey piece tip montant of base nut and Bailey beam tip, and one side and the base nut welded fastening of circular backing plate, opposite side and the Bailey piece tip montant direct contact of Bailey beam tip, through adopting circular backing plate in the tip base, has effectively avoided stress concentration phenomenon, has ensured to transmit the power for Bailey beam effectively.
It should be noted that all the directional indicators in the present invention, such as up, down, left, right, front and back, are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture, if the specific posture is changed, the directional indicator is also changed accordingly.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
The above describes in detail optional implementation manners of embodiments of the present invention with reference to the accompanying drawings, however, the embodiments of the present invention are not limited to the details in the above implementation manners, and in the technical concept scope of the embodiments of the present invention, it is possible to perform various simple modifications on the technical solutions of the embodiments of the present invention, and these simple modifications all belong to the protection scope of the embodiments of the present invention.
It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. In order to avoid unnecessary repetition, the embodiments of the present invention do not separately describe various possible combinations.
Claims (8)
1. A load distribution beam for applying prestress on a Bailey beam is characterized by comprising two transverse distribution beams (1), a plurality of longitudinal distribution beams (2) and two longitudinal support rods (3); the two transverse distribution beams (1) are arranged in parallel up and down, and the plurality of longitudinal distribution beams (2) are uniformly arranged at one side of the two transverse distribution beams (1) at intervals; the longitudinal distribution beams (2) are vertically arranged in parallel, the upper end and the lower end of each longitudinal distribution beam (2) are respectively fixedly connected with two transverse distribution beams (1), and the longitudinal distribution beams (2) are used for being connected with steel strands applying prestress;
the two longitudinal support rods (3) are respectively arranged at two ends of the transverse distribution beam (1), and the two transverse distribution beams (1) and the two longitudinal support rods (3) form a rectangular frame in a surrounding manner; a plurality of high-strength bolts (4) are uniformly arranged on each transverse distribution beam (1) along the axis direction of the transverse distribution beam, and the high-strength bolts (4) are in direct contact with vertical rods at the ends of the Bailey sheets at the ends of the Bailey beams.
2. The prestressed load distributing beam for bailey beams according to claim 1, wherein each transverse distributing beam (1) comprises two transverse i-beams (11), a number of middle supporting jaws (12) and end fixing tabs (13); the two transverse H-shaped steels (11) are arranged up and down symmetrically, and the webs of the two transverse H-shaped steels (11) are arranged on the same vertical plane; the high-strength bolts (4) are uniformly arranged between the two transverse I-shaped steels (11);
the middle supporting clamping pieces (12) are vertically and uniformly arranged between the two transverse H-shaped steels (11), the upper ends of the middle supporting clamping pieces (12) are vertically and fixedly connected with the lower flange of one transverse H-shaped steel (11), and the lower ends of the middle supporting clamping pieces are vertically and fixedly connected with the upper flange of the other transverse H-shaped steel (11); the ends of the two transverse I-shaped steels (11) are connected together through end fixing sheets (13).
3. The load distribution beam for the prestressing of the bailey beam according to claim 1, wherein each longitudinal distribution beam (2) comprises two vertical i-beams (21) and a tension anchor backing plate (22), the two vertical i-beams (21) are arranged in bilateral symmetry, and the webs of the two vertical i-beams (21) are arranged in parallel at intervals; the upper end of the vertical I-shaped steel (21) is fixedly connected with one transverse distribution beam (1), and the lower end of the vertical I-shaped steel is fixedly connected with the other transverse distribution beam (1); each longitudinal distribution beam (2) is provided with a tensioning anchoring backing plate (22), the tensioning anchoring backing plates (22) are arranged in the middle of the two vertical I-shaped steels (21), the center of each tensioning anchoring backing plate (22) is provided with a tensioning hole (23), and steel strands for applying prestress are fixedly arranged in the tensioning holes (23) in a penetrating mode.
4. The prestressed load distribution beam for a beret beam according to claim 1, characterized in that the longitudinal support rods (3) are i-beams, the length of which matches the distance between two transverse distribution beams (1); the upper end of the longitudinal support rod (3) is welded and fixed with the bottom of one transverse distribution beam (1), and the lower end of the longitudinal support rod is welded and fixed with the top of the other transverse distribution beam (1).
5. A prestressed load-distributing beam for a beret beam, according to claim 2, characterized in that the high-strength bolt (4) comprises a threaded column (41), an end nut (42), two intermediate nuts (43) and an end base (45); the threaded column (41) horizontally penetrates between the two transverse I-shaped steels (11), the end screw caps (42) and the end base (45) are respectively arranged at two ends of the threaded column (41), and the end screw caps (42) are arranged on the same side of the longitudinal distribution beam (2); the end part base (45) is arranged close to one side of the Bailey beam and is in contact with a Bailey sheet end part vertical rod at the end part of the Bailey beam;
the two middle nuts (43) penetrate through the threaded column (41) and are respectively arranged on two sides of the transverse H-shaped steel (11), and the threaded column (41) is fixedly connected with the transverse H-shaped steel (11) through the two middle nuts (43).
6. A prestressed load distributing beam for a Bailey beam according to claim 5, characterized in that a spacer (44) is arranged between the intermediate nut (43) and the transverse I-beam (11).
7. The load distribution beam for prestressing a Bailey beam according to claim 5, wherein the end base (45) comprises a base nut and a backing plate, the base nut is in threaded connection with the threaded post (41), the backing plate is arranged between the base nut and the Bailey piece end vertical rod at the end of the Bailey beam, one side of the backing plate is welded and fixed with the base nut, and the other side of the backing plate is in direct contact with the Bailey piece end vertical rod at the end of the Bailey beam.
8. The prestressed load distribution beam for a beret beam of claim 7, wherein said pad is a circular pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020428978.9U CN212000653U (en) | 2020-03-27 | 2020-03-27 | Load distribution beam for applying prestress to Bailey beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020428978.9U CN212000653U (en) | 2020-03-27 | 2020-03-27 | Load distribution beam for applying prestress to Bailey beam |
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| Publication Number | Publication Date |
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| CN212000653U true CN212000653U (en) | 2020-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020428978.9U Active CN212000653U (en) | 2020-03-27 | 2020-03-27 | Load distribution beam for applying prestress to Bailey beam |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113186836A (en) * | 2021-06-01 | 2021-07-30 | 中铁七局集团第三工程有限公司 | Construction method of brand-new prestress integral bridge falsework |
-
2020
- 2020-03-27 CN CN202020428978.9U patent/CN212000653U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113186836A (en) * | 2021-06-01 | 2021-07-30 | 中铁七局集团第三工程有限公司 | Construction method of brand-new prestress integral bridge falsework |
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