Connecting structure of cross beam and bailey piece frame of assembly type steel trestle
By setting support seats and slots on the crossbeams and using the first and second clamping parts to position the I-beams of the Bailey bridge frame, the problem of complicated connection between the Bailey bridge frame and the crossbeams is solved, achieving convenient installation and stable connection, which is suitable for the rapid construction of prefabricated steel trestle bridges.
Patent Information
- Application Number
- CN202520052105.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-09
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-01-09
AI Technical Summary
In existing prefabricated steel trestle bridges, the connection process between Bailey bridge panels and crossbeams is cumbersome and not conducive to later disassembly.
A detachable connection structure is adopted. By setting support seats and slots on the crossbeam, and using the first and second clamping members to position the I-beam of the Bailey plate frame, the first clamping member clamps the top side of the beam and the second clamping member clamps the bottom side of the beam to achieve a stable connection.
It simplifies the installation process, improves the stability of the connection, and facilitates disassembly, thus meeting the rapid construction needs of prefabricated steel trestle bridges.
Smart Images
Figure CN223853142U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to bridge engineering technical field, and particularly, relate to a kind of crossbeam of assembly type steel trestle and the connecting structure of bailey frame. BACKGROUND
[0002] Assembly type steel trestle is a kind of steel structure bridge in factory prefabricated component, then it is assembled and installed in field, all components thereof are factory modularized processing standard parts, field assembly is simple and convenient and does not need maintenance, can be carried out next process construction after installation, greatly shorten construction period.Assembly type steel trestle mainly includes pier, crossbeam arranged on pier, bailey frame arranged on crossbeam and deck slab installed on the top of bailey frame.
[0003] Currently, when bailey frame is connected with crossbeam, bailey frame is hoisted to crossbeam first, then position is maintained and fixed by welding, and the installation process is relatively troublesome and is not conducive to later disassembly. UTILITY MODEL CONTENTS
[0004] The utility model aims at providing a kind of connecting structure of crossbeam and bailey frame of assembly type steel trestle, which fixes crossbeam and bailey frame in the direction of detachable connection, and is simple and convenient to install and conducive to later disassembly.
[0005] The utility model realizes by the following technical scheme: a kind of connecting structure of crossbeam and bailey frame of assembly type steel trestle, including crossbeam, bailey frame, support seat, first compression part and second compression part, the bottom of bailey frame is equipped with I-shaped beam, the top of crossbeam is provided with support seat, the support seat is provided with the slot for bailey frame and is put into, first compression part is slidably arranged on support seat along the length direction of bailey frame, second compression part is fixedly arranged in crossbeam, first compression part is used to compress the side of the top of I-shaped beam, and second compression part is used to compress the side of the bottom of I-shaped beam.
[0006] Further, the first compression part includes compression block, the support seat is provided with the strip-shaped gap for the compression block and is put into, the width of strip-shaped gap is greater than the thickness of compression block, and the both ends of compression block extend to the outside of strip-shaped gap, the both sides of support seat are provided with support strip, a plurality of through holes are distributed on support strip along the length direction of itself, and one end of compression block outside strip-shaped gap is connected in one of through holes by bolt assembly.
[0007] Further, the bolt assembly includes abutting bolt and compression nut, the through hole is formed in compression block, the abutting bolt passes through the through hole of compression block and support strip in sequence and extends to the lower part of support strip, and the compression nut is threadedly connected to one end of abutting bolt located in the lower part of support strip.
[0008] Further, the support seat is provided with a guide block on both sides of the insertion slot, and the two guide blocks extend away from each other to form a flared shape.
[0009] Further, the second pressing member is arranged on both sides of the support seat on the cross beam, and the second pressing member comprises a fixing seat, a clamping block and a telescopic adjusting member.
[0010] Further, the telescopic adjusting member comprises an adjusting screw, the fixing seat is provided with a through hole for inserting the adjusting screw, and a top nut is threadedly connected to the lower part of the adjusting screw.
[0011] Further, the clamping block is provided with a clamping groove, and the clamping block is provided with an arc-shaped chamfer on the upper and lower sides of the clamping groove.
[0012] The technical scheme of the utility model has at least the following advantages and beneficial effects:
[0013] The utility model discloses a support seat is arranged on the cross beam, and an insertion slot is arranged in the support seat, so that the bailey piece frame can be conveniently placed, the first pressing member and the second pressing member are arranged, the side of the top of the I-shaped beam is pressed by the first pressing member, the side of the bottom of the I-shaped beam is pressed by the second pressing member, the positioning effect of the cross beam and the bailey piece frame is improved, and the stability after connection is improved. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 It is the whole structure schematic view of the utility model;
[0015] Figure 2 It is the A part enlarged view of Figure 1
[0016] Figure 3 It is the structure schematic view of the first pressing member and the second pressing member on the support seat of the utility model;
[0017] Figure 4 It is the structure schematic view of the second pressing member of the utility model;
[0018] Fig. 1 is a crossbeam, Fig. 2 is a sheet pile frame, Fig. 21 is an I-beam, Fig. 3 is a support base, Fig. 31 is a slot, Fig. 32 is a strip-shaped notch, Fig. 33 is a support strip, Fig. 34 is a guide block, Fig. 4 is a first pressing member, Fig. 41 is a pressing block, Fig. 42 is a bolt assembly, Fig. 421 is a pressing bolt, Fig. 422 is a pressing nut, Fig. 5 is a second pressing member, Fig. 51 is a fixing base, Fig. 52 is a clamping block, Fig. 521 is a clamping groove, Fig. 522 is an arc-shaped chamfer, Fig. 53 is an extension adjusting member, Fig. 531 is an adjusting screw, and Fig. 532 is a tightening nut. DETAILED DESCRIPTION
[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.
[0020] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.
[0021] Embodiment 1
[0022] The following refers to Figures 1-4 Further illustrated in combination with specific embodiments, the present embodiment provides a connecting structure of a crossbeam and a sheet pile frame of an assembled steel trestle, referring to Figure 1 , Figure 2 as shown, comprising a crossbeam 1, a sheet pile frame 2, a support base 3, a first pressing member 4, and a second pressing member 5. The top and bottom of the sheet pile frame 2 are both configured with an I-beam 21, and the support base 3 is welded on the top of the crossbeam 1. Referring to Figure 3As shown, the support seat 3 is provided with a slot 31, and the support seat 3 is provided with a guide block 34 on both sides of the top of the slot 31, and the two guide blocks 34 extend away from each other to form a flared shape to facilitate the insertion process of the timber beam frame 2. The first pressing member 4 is arranged on the support seat 3 along the length direction of the timber beam frame 2, and the second pressing member 5 is fixedly installed in the cross beam 1, and the first pressing member 4 is used to press the side edge of the top of the I-shaped beam 21, and the second pressing member 5 is used to press the side edge of the bottom of the I-shaped beam 21. The timber beam frame 2 is hoisted to the upper part of the cross beam 1, and the I-shaped beam 21 at the bottom of the timber beam frame 2 is aligned with the slot 31 on the support seat 3 and is inserted, and then the side edge of the top of the I-shaped beam 21 is pressed by the first pressing member 4, and then the side edge of the bottom of the I-shaped beam 21 is pressed by the second pressing member 5, and the positioning of the cross beam 1 and the timber beam frame 2 is realized under the joint action of the first pressing member 4 and the second pressing member 5.
[0023] Referring to Figure 2 、 Figure 3 As shown, the first pressing member 4 includes a pressing block 41, and the support seat 3 is provided with a strip-shaped gap 32 for inserting the pressing block 41, and the width of the strip-shaped gap 32 is greater than the thickness of the pressing block 41, and the two ends of the pressing block 41 extend to the outside of the strip-shaped gap 32, and the two sides of the support seat 3 are welded with support strips 33 along the length direction of the support seat 3, and the support strips 33 are provided with a plurality of through holes along the length direction of the support strips 33, and one end of the pressing block 41 outside the strip-shaped gap 32 is connected to one of the through holes by a bolt assembly 42. Because the connection between the timber beam frame 2 and the cross beam 1 is different, the position of the diagonal rod on the timber beam frame 2 is also different, and the position of the pressing block 41 on the support seat 3 is adjusted according to the position of the diagonal rod, so that the pressing block 41 can avoid the diagonal rod, thereby realizing the pressing action on the side edge of the top of the I-shaped beam. When the timber beam frame 2 is inserted into the slot 31 on the support seat 3, the pressing block 41 is not installed on the support seat 3; after the timber beam frame 2 is inserted into the slot 31, the pressing block 41 is inserted into the support seat 3 from the strip-shaped gap 32, and then is slid along the length direction of the strip-shaped gap 32 to the specified position to avoid the diagonal rod on the timber beam frame 2, and the bolt assembly 42 is installed at both ends of the pressing block 41 and is tightened, so that the pressing block 41 presses the side edge of the top of the I-shaped beam 21.
[0024] Referring to Figure 3As shown, the bolt assembly 42 includes a clamping bolt 421 and a clamping nut 422. A through hole is provided on the clamping block 41. The clamping bolt 421 passes through the through holes on the clamping block 41 and the support bar 33 in sequence and extends to the lower part of the support bar 33. The clamping nut 422 is threadedly connected to the end of the clamping bolt 421 located at the lower part of the support bar 33. After adjusting the clamping block 41 to the designated position along the length of the strip-shaped notch 32, the clamping bolt 421 passes through the through holes on the clamping block 41 and the support bar 33 from top to bottom. Then, the clamping nut 422 is threadedly connected to the bottom end of the clamping bolt 421, and the clamping nut 422 is tightened so that it abuts against the support bar 33. This causes the clamping bolt 421 to move the clamping block 41 downwards, thereby applying downward pressure to the clamping block 41 and achieving a clamping effect on the top side of the I-beam 21.
[0025] Reference Figure 3 , Figure 4 As shown, a second clamping member 5 is provided on both sides of the crossbeam 1 and the support base 3. The second clamping member 5 includes a fixed base 51, a clamping block 52 and a telescopic adjustment member 53. The fixed base 51 is fixed in the crossbeam 1 by welding. The telescopic adjustment member 53 is telescopically arranged in the fixed base 51. The telescopic adjustment member 53 includes an adjusting screw 531. The fixed base 51 has a through hole for inserting the adjusting screw 531. A tightening nut 532 is threadedly connected to the adjusting screw 531 and located at the lower part of the fixed base 51. The clamping block 52 is welded to the top of the telescopic adjustment member 53 and can be clamped on the side of the bottom of the I-beam 21. The clamping block 52 has a slot 521 for clamping to the side of the bottom of the I-beam 21. Adjust the height of the adjusting screw 531 and engage the locking block 52's slot 521 on the side of the bottom of the I-beam 21. Then tighten the top nut 532 so that it abuts against the bottom of the fixing seat 51. This applies downward pressure to the locking block 52, causing it to press the side of the bottom of the I-beam 21 downwards. The combined action of the first clamping member 4 and the second clamping member 5 enhances the positioning of the I-beam 21. To facilitate engaging the locking block 52 on the side of the bottom of the I-beam 21, the locking block 52 has rounded chamfers 522 on both the upper and lower sides of the slot 521 to facilitate the engagement process.
[0026] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A connecting structure of a fabricated steel trestle beam and a Bailey frame, comprising a beam (1), a Bailey frame (2), a support seat (3), a first pressing member (4) and a second pressing member (5), the bottom of the Bailey frame (2) is provided with an I-shaped beam (21), characterized in that, The support seat (3) is arranged on the top of the cross beam (1), a slot (31) for placing the timber beam (2) is arranged on the support seat (3), the first pressing part (4) is arranged on the support seat (3) along the length direction of the timber beam (2), the second pressing part (5) is fixedly arranged in the cross beam (1), the first pressing part (4) is used for pressing the side of the top of the I-shaped beam (21), and the second pressing part (5) is used for pressing the side of the bottom of the I-shaped beam (21).
2. The connecting structure of the cross beam of the fabricated steel trestle and the sheet pile frame according to claim 1, characterized in that, The first pressing part (4) comprises a pressing block (41), a strip-shaped gap (32) for placing the pressing block (41) is arranged on the support seat (3), the width of the strip-shaped gap (32) is greater than the thickness of the pressing block (41), both ends of the pressing block (41) extend to the outside of the strip-shaped gap (32), and support strips (33) are arranged on both sides of the support seat (3).
3. The connecting structure of the cross beam of the fabricated steel trestle and the sheet pile frame according to claim 2, characterized in that, The support strips (33) are provided with a plurality of through holes distributed along the length direction of the support strips (33), and one end of the pressing block (41) located outside the strip-shaped gap (32) is connected to one of the through holes by a bolt assembly (42).
4. The connecting structure of the cross beam of the fabricated steel trestle and the sheet pile frame according to claim 1, characterized in that, The bolt assembly (42) comprises a pressing bolt (421) and a pressing nut (422), the pressing block (41) is provided with a through hole, the pressing bolt (421) passes through the through holes of the pressing block (41) and the support strip (33) in sequence and extends to the lower part of the support strip (33), and the pressing nut (422) is threadedly connected to one end of the pressing bolt (421) located at the lower part of the support strip (33).
5. The connecting structure of the cross beam of the fabricated steel trestle and the sheet pile frame according to claim 1, characterized in that, The support seat (3) is provided with guide blocks (34) on both sides of the slot (31), and the two guide blocks (34) extend away from each other to form a flared shape.
6. The connecting structure of the cross beam of the fabricated steel trestle and the sheet pile frame according to claim 5, characterized in that, The cross beam (1) is provided with the second pressing part (5) on both sides of the support seat (3), the second pressing part (5) comprises a fixed seat (51), a clamping block (52) and a telescopic adjusting part (53), the fixed seat (51) is fixedly arranged in the cross beam (1), the telescopic adjusting part (53) is telescopically arranged in the fixed seat (51), and the clamping block (52) is arranged on the top of the telescopic adjusting part (53) and can be clamped on the side of the bottom of the I-shaped beam (21).
7. The connecting structure of the cross beam of the fabricated steel trestle and the sheet pile frame according to claim 5, characterized in that, The telescopic adjusting part (53) comprises an adjusting screw (531), the fixed seat (51) is provided with a through hole for inserting the adjusting screw (531), and a tightening nut (532) is threadedly connected to one end of the adjusting screw (531) located at the lower part of the fixed seat (51). The clamping block (52) is provided with a clamping groove (521), and arc-shaped chamfers (522) are arranged on both sides of the clamping groove (521) of the clamping block (52).