Beam seam connecting assembly, beam seam telescopic structure and girder seam connecting device
By using a T-connector with a hinged structure to cover the beam joints in the bridge beam joint connection device, the problems of vulnerability, sewage erosion and bolt looseness are solved, and higher stability and service life are achieved.
Patent Information
- Application Number
- CN202421121811.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-22
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2034-05-22
AI Technical Summary
The existing large bridge beam joint connection devices have problems such as vulnerable parts, sewage erosion and bolt looseness and damage, resulting in short service life and unstable and reliable.
Using a beam joint connection assembly including a first T-type connector and a second T-type connector, the beam joint is covered by a hinged structure of the hinged female and hinged male to prevent debris from filling and allow the discharge of bridge deck water. The arc grooves and ball head have higher degree of articulation freedom and greater flexibility.
The covering of beam joints and water discharge are achieved, which prevents debris from being blocked, improves the stability and service life of the structure, and simplifies the installation process.
Smart Images
Figure CN222455807U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a beam joint connection component, a beam joint telescopic structure and a large beam joint connection device, belonging to the technical field of bridges. Background Art
[0002] An expansion joint is a structural joint set at an appropriate position along the construction joint direction of a building or structure to prevent cracks or damage to the structure caused by thermal expansion and contraction of building components due to climate and temperature changes. An expansion joint is a joint that divides building components above the foundation, such as walls, floor slabs, and roofs, into two independent parts, so that the building or structure can be expanded and contracted horizontally along the length. The expansion and contraction deformation of long and continuous bridges is very large. At present, such large displacement expansion joints generally use steel strips and comb plates. The vulnerable part of the steel strip expansion joint is the rubber strip. When the rubber strip is damaged due to aging, foreign body puncture and expansion, rainwater on the bridge deck will flow down from the expansion joint, causing the pier cap beam, bearings, etc. to be eroded by sewage; the comb plate expansion joint abandons the vulnerable rubber strip design, but because the comb plate across the seam is fixed to the bridge deck with bolts, the frequent impact of passing vehicles can easily cause the bolts to loosen and damage, thereby causing the comb plate to loosen and fall off.
[0003] Therefore, there is an urgent need for a beam joint connection device that has a long service life, is strong and reliable, is easy to discharge water from the bridge surface, and is convenient for cleaning debris from the beam joint. Utility Model Content
[0004] The technical problem to be solved by the utility model is to provide a beam seam connection component, a beam seam telescopic structure and a large beam seam connection device, which can cover the beam seam and facilitate the drainage of water on the bridge surface, and at the same time facilitate the cleaning of debris at the beam seam connection.
[0005] The utility model solves the above technical problems with the following technical solutions: a beam joint connection assembly, wherein the beam joint is a gap between a first beam body and a second beam body arranged in parallel at intervals, the beam joint connection assembly spans the beam joint and connects the first beam body and the second beam body, comprising:
[0006] A first T-shaped connector, wherein the top of the first T-shaped connector is an arc surface and a hinged female head is provided on one lateral end thereof, and the bottom end of the first T-shaped connector is hingedly connected to the first beam body;
[0007] The second T-shaped connecting piece has an arc surface on its top and an articulated male head fixed to one end thereof close to the articulated female head, the articulated male head is articulated to the articulated female head, and the bottom end of the second T-shaped connecting piece is articulated to the second beam body.
[0008] The beneficial effects of the utility model are as follows: the hinged female head of the first T-shaped connector is hinged with the hinged male head of the second T-shaped connector, the first T-shaped connector and the second T-shaped connector can cover the top of the beam joint to prevent debris from filling the beam joint, and the top surface of the first T-shaped connector and the top surface of the second T-shaped connector are arc surfaces. When the first T-shaped connector and the second T-shaped connector rotate with the change of the beam joint, the height of the highest point of the first T-shaped connector and the second T-shaped connector is kept unchanged, which can improve stable support; it does not hinder the discharge of water on the bridge surface, and at the same time can prevent debris from clogging the beam joint, and the structure is simple and easy to install.
[0009] On the basis of the above technical solution, the present invention can also be improved as follows.
[0010] Further, the first T-shaped connecting member includes a first transverse plate and a first longitudinal plate which are vertically fixedly connected, the top surface of the first transverse plate is an arc surface and one side end of the first transverse plate is provided with the articulated female head, and the first longitudinal plate is hinged to the first beam body; the second T-shaped connecting member includes a second transverse plate and a second longitudinal plate which are vertically fixedly connected, the top surface of the second transverse plate is an arc surface and one side end close to the articulated female head is fixed with the articulated male head, and the second longitudinal plate is hinged to the second beam body.
[0011] Furthermore, the articulated female head is an arc-shaped groove, and the articulated male head is a ball head matching the arc-shaped groove.
[0012] The beneficial effects of adopting the above further solution are as follows: the arc-shaped groove and the ball head have a higher degree of freedom of articulation and greater flexibility.
[0013] The technical solution of the utility model for solving the above-mentioned technical problems is as follows: a beam seam expansion and contraction structure, comprising a plurality of first hinged slot bodies and second hinged slot bodies grouped in pairs, a plurality of limiting ropes and a plurality of the beam seam connection components, the beam seam expansion and contraction direction is the x direction, a plurality of the first hinged slot bodies are each provided with a hinge slot 1, a plurality of the second hinged slot bodies are each provided with a hinge slot 2, a plurality of the first hinged slot bodies and a plurality of the second hinged slot bodies are alternately arranged along the x direction and are sequentially connected and slidably connected to the second beam body through a plurality of the limiting ropes, a plurality of the first T-shaped connecting pieces are each fixed with an articulation protrusion at the bottom end, a plurality of the articulation protrusions are articulated with a plurality of the articulation slots 1 in a one-to-one correspondence, a plurality of the second T-shaped connecting pieces are each fixed with an articulation block at the bottom end, a plurality of the articulation blocks are articulated with a plurality of the articulation slots 2 in a one-to-one correspondence.
[0014] The beneficial effects of the utility model are as follows: the first T-shaped connector, the second T-shaped connector, the first hinge groove body, the second hinge groove body and the limiting rope form a telescopic unit, the multiple telescopic units are connected by the limiting rope, the maximum movable distance between adjacent hinge protrusions and hinge blocks is greater than the length of the limiting rope, preventing the articulated female head and the articulated male head from being damaged by excessive stress; the telescopic distance can be controlled by selecting different numbers of telescopic units, which is convenient for regulation.
[0015] The utility model provides a technical solution to the above-mentioned technical problem as follows: a large beam seam connecting device, comprising a first fixing member, a second fixing member, a cross-seam beam and the beam seam telescopic structure, wherein the first fixing member is fixed to the first beam body, the second fixing member is fixed to the second beam body, one end of the cross-seam beam is hinged to the first fixing member, and the other end is hinged to the first hinged groove body at the head end of the beam seam telescopic structure, and the second hinged groove body at the end of the beam seam telescopic structure is fixedly connected to the second fixing member.
[0016] The beneficial effects of the utility model are as follows: the cross-seam beam covers the beam seam and can support the bridge deck at the beam seam; the beam seam telescopic structure can change with the change of the beam seam and its highest supporting point remains unchanged; there is a gap between the beam seam telescopic structures to facilitate the cleaning of fallen debris and prevent the discharge of accumulated water on the bridge deck.
[0017] Further, the first fixing part includes a first embedded part, a first L-shaped plate and a limiting protrusion, the first embedded part is embedded and fixed in the first beam body, the longitudinal plate of the first L-shaped plate is fixed on the first embedded part, the limiting protrusion is fixed on the transverse plate of the first L-shaped plate to form a third hinge groove with its longitudinal plate, and the bottoms of the two ends of the cross-seam beam are respectively fixed with a first hinge joint and a second hinge joint, the first hinge joint is hinged to the third hinge groove, and the second hinge joint is hinged to the first hinge groove body at the head end of the beam seam telescopic structure.
[0018] The beneficial effect of adopting the above further solution is that the first hinged joint is hinged to the third hinged groove, so that the cross-seam beam has a certain activity space, reduces stress and increases service life.
[0019] Furthermore, the second fixing part includes a second embedded part and a second L-shaped plate, the second embedded part is embedded and fixed in the second beam body, the longitudinal plate of the second L-shaped plate is fixed on the second embedded part, and the second hinged groove body at the end of the beam seam telescopic structure is fixedly connected to the transverse plate of the second L-shaped plate.
[0020] Furthermore, the transverse plate of the first L-shaped plate and the transverse plate of the second L-shaped plate are respectively fixed to the first beam body and the second beam body by bolts.
[0021] Furthermore, the first embedded part, the first L-shaped plate, the limiting protrusion, the second embedded part, the second L-shaped plate, the first T-shaped connecting part and the second T-shaped connecting part are made of weathering steel, stainless steel or ordinary structural steel.
[0022] Furthermore, the second hinged groove body at the end of the beam seam telescopic structure is fixedly connected to the transverse plate of the second L-shaped plate by bolts. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 A structural schematic diagram of a beam joint connection assembly provided by the utility model;
[0024] Figure 2 A schematic diagram of the working state of a beam joint connection assembly provided by the utility model;
[0025] Figure 3 A schematic diagram of another working state of a beam joint connection assembly provided by the utility model;
[0026] Figure 4 An exploded diagram of a telescopic unit in a beam joint telescopic structure provided by the utility model;
[0027] Figure 5 A telescopic change diagram of a telescopic unit in a beam joint telescopic structure provided by the utility model
[0028] Figure 6 A structural schematic diagram of a beam joint telescopic structure provided by the utility model;
[0029] Figure 7 A schematic diagram of the installation of a beam seam connection device provided by the utility model;
[0030] Figure 8 It is an enlarged view of part A in Figure 7;
[0031] Fig. 9 It is an enlarged view of part B in Figure 7;
[0032] Fig.10 This is an enlarged view of portion C in Figure 7.
[0033] In the accompanying drawings, the components represented by the reference numerals are listed as follows:
[0034] 1- beam joint telescopic structure, 11- beam joint connection assembly, 111- first T-shaped connector, 1111- hinged female head, 1112- first horizontal plate, 1113- first vertical plate, 1114- hinged protrusion, 112- second T-shaped connector, 1121- hinged male head, 1122- second horizontal plate, 1123- second vertical plate, 1124- hinged block, 12- first hinged slot, 121- hinged slot 1, 13- first Two hinged groove bodies, 131-hinge groove two, 14-limiting rope, 2-first fixing piece, 21-first embedded piece, 22-first L-shaped plate, 23-limiting protrusion, 24-first hinge joint, 25-second hinge joint, 26-third hinge groove, 3-second fixing piece, 31-second embedded piece, 32-second L-shaped plate, 4-span beam, 5-beam seam, 6-first beam body, 7-second beam body, 8-straight line where the highest support point is located. DETAILED DESCRIPTION
[0035] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.
[0036] The purpose of the utility model is to provide a beam seam connection component, a beam seam telescopic structure and a large beam seam connection device to solve the problems existing in the prior art, which can cover the beam seam and facilitate the drainage of water on the bridge surface, and at the same time facilitate the cleaning of debris at the beam seam connection.
[0037] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.
[0038] The utility model provides a beam seam connection assembly, wherein the beam seam 5 is a gap between a first beam body 6 and a second beam body 7 arranged in parallel at intervals, and the beam seam connection assembly 11 spans the beam seam 5 and connects the first beam body 6 and the second beam body 7. Figures 1 to 3 As shown, including:
[0039] A first T-shaped connector 111, the top of the first T-shaped connector 111 is an arc surface and a hinge female head 1111 is provided on one lateral end thereof, and the bottom end of the first T-shaped connector 111 is hinged to the first beam body 6;
[0040] The second T-shaped connecting piece 112 has an arc surface on its top and an articulated male head 1121 is fixed to one end thereof close to the articulated female head 1111. The articulated male head 1121 is articulated to the articulated female head 1111. The bottom end of the second T-shaped connecting piece 112 is articulated to the second beam body 7.
[0041] The utility model provides a beam seam connection assembly, in which the hinged female head 1111 of the first T-shaped connector 111 is hinged with the hinged male head 1121 of the second T-shaped connector 112, and the first T-shaped connector 111 and the second T-shaped connector 112 can cover the top of the beam seam 5 to prevent debris from filling the beam seam 5, and the top surface of the first T-shaped connector 111 and the top surface of the second T-shaped connector 112 are arc surfaces. When the first T-shaped connector 111 and the second T-shaped connector 112 rotate with the change of the beam seam 5, the highest point heights of the first T-shaped connector 111 and the second T-shaped connector 112 are kept unchanged, which can improve stable support; it does not hinder the discharge of water on the bridge surface, and at the same time can prevent debris from clogging the beam seam 5, and the structure is simple and easy to install.
[0042] In a specific embodiment of the utility model, the first T-shaped connecting member 111 includes a first transverse plate 1112 and a first longitudinal plate 1113 which are vertically fixedly connected, the top surface of the first transverse plate 1112 is an arc surface and a hinged female head 1111 is provided at one side end thereof, and the first longitudinal plate 1113 is hingedly connected to the first beam body 6; the second T-shaped connecting member 112 includes a second transverse plate 1122 and a second longitudinal plate 1123 which are vertically fixedly connected, the top surface of the second transverse plate 1122 is an arc surface and a hinged male head 1121 is fixedly provided at one side end thereof close to the hinged female head 1111, and the second longitudinal plate 1123 is hingedly connected to the second beam body 7.
[0043] Preferably, the length of the first transverse plate 1112 is 80-120 mm, and the height of the first longitudinal plate 1113 is 90-140 mm.
[0044] In a specific embodiment of the present invention, the hinged female head 1111 is an arc-shaped groove, and the hinged male head 1121 is a ball head matching the arc-shaped groove.
[0045] The curved groove and ball head provide greater freedom of articulation and flexibility.
[0046] The utility model provides a beam joint telescopic structure, such as Figures 4 to 6 As shown, it includes a plurality of first hinged slots 12 and second hinged slots 13 in pairs, a plurality of limit ropes 14 and a plurality of beam seam connection components 11, the beam seam 5 is telescopically extended in the x direction, a plurality of first hinged slots 12 are each provided with a hinge slot 121, a plurality of second hinged slots 13 are each provided with a hinge slot 2 131, a plurality of first hinged slots 12 and a plurality of second hinged slots 13 are alternately arranged along the x direction and are sequentially connected and slidably connected to the second beam body 7 through a plurality of limit ropes 14, a plurality of first T-shaped connectors 111 are each fixed with hinge protrusions 1114 at the bottom ends, a plurality of hinge protrusions 1114 are hingedly connected to a plurality of hinge slots 121 in a one-to-one correspondence, a plurality of second T-shaped connectors 112 are each fixed with hinge blocks 1124 at the bottom ends, a plurality of hinge blocks 1124 are hingedly connected to a plurality of hinge slots 2 131 in a one-to-one correspondence.
[0047] The beam joint telescopic structure provided by the utility model comprises a first T-shaped connector 111, a second T-shaped connector 112, a first hinge slot 12, a second hinge slot 13 and a limiting rope 14 forming a telescopic unit, and a plurality of telescopic units are connected by the limiting rope 14, and a maximum movable distance between adjacent hinge protrusions 1114 and hinge blocks 1124 is greater than a length of the limiting rope 14, so as to prevent damage caused by excessive stress between the hinge female head 1111 and the hinge male head 1121; the telescopic distance can be controlled by selecting different numbers of telescopic units, so as to facilitate regulation.
[0048] Preferably, the expansion amount of the beam joint expansion structure 1 is 50 to 80 mm.
[0049] In a specific embodiment of the utility model, Figure 5 As shown, the topmost height of the beam joint telescopic structure 1 remains unchanged, providing stable support for the top plate installed thereon, and Figure 5 Mark the straight line 8 where the highest support point is located.
[0050] The utility model provides a beam seam connection device, such as Figures 7-10 As shown, it includes a first fixing member 2, a second fixing member 3, a cross-seam beam 4 and a beam seam telescopic structure 1, the first fixing member 2 is fixed on the first beam body 6, the second fixing member 3 is fixed on the second beam body 7, one end of the cross-seam beam 4 is hinged to the first fixing member 2, and the other end is hinged to the first hinged groove body 12 at the head end of the beam seam telescopic structure 1, and the second hinged groove body 13 at the end of the beam seam telescopic structure 1 is fixedly connected to the second fixing member 3.
[0051] The utility model provides a beam seam connecting device, in which the cross-seam beam 4 covers the beam seam 5, and can support the bridge deck at the beam seam 5; the beam seam telescopic structure 1 can change with the change of the beam seam 5, and its highest supporting point remains unchanged; there is a gap between the beam seam telescopic structures 1, which is convenient for cleaning fallen debris and prevents the discharge of accumulated water on the bridge deck.
[0052] In a specific embodiment of the utility model, Figure 6 As shown, the second hinged slot 13 of the beam joint connection assembly 11 in the beam joint telescopic structure 1 and the first hinged slot 12 of the next beam joint connection assembly 11 can be fixed, so as to adjust the telescopic range and reduce the use of the limiting rope 14.
[0053] In a specific embodiment of the utility model, the first fixing member 2 includes a first embedded member 21, a first L-shaped plate 22 and a limiting protrusion 23. The first embedded member 21 is embedded and fixed in the first beam body 6. The longitudinal plate of the first L-shaped plate 22 is fixed on the first embedded member 21. The limiting protrusion 23 is fixed on the transverse plate of the first L-shaped plate 22 to form a third hinge groove 26 with its longitudinal plate. The bottoms of the two ends of the cross-seam beam 4 are respectively fixed with a first hinge joint 24 and a second hinge joint 25. The first hinge joint 24 is hinged to the third hinge groove 26, and the second hinge joint 25 is hinged to the first hinge groove body 12 at the head end of the beam seam telescopic structure 1.
[0054] The first hinged joint 24 is hinged to the third hinged groove 26, so that the cross-seam beam 4 has a certain movable space, which reduces stress and increases service life.
[0055] In a specific embodiment of the utility model, Figure 6 As shown, a fourth hinge groove is provided on the first hinge groove body 12 close to the first beam body 6 in the beam gap telescopic structure 1, and the second hinge head 25 is hinged to the fourth hinge groove.
[0056] In a specific embodiment of the utility model, the second fixing member 3 includes a second embedded member 31 and a second L-shaped plate 32. The second embedded member 31 is embedded and fixed in the second beam body 7. The longitudinal plate of the second L-shaped plate 32 is fixed on the second embedded member 31. The second hinged groove body 13 at the end of the beam seam telescopic structure 1 is fixedly connected to the transverse plate of the second L-shaped plate 32.
[0057] In a specific embodiment of the present invention, the transverse plate of the first L-shaped plate 22 and the transverse plate of the second L-shaped plate 32 are respectively fixed to the first beam body 6 and the second beam body 7 by bolts.
[0058] In a specific embodiment of the utility model, the first embedded part 21, the first L-shaped plate 22, the limiting protrusion 23, the second embedded part 31, the second L-shaped plate 32, the first T-shaped connector 111 and the second T-shaped connector 112 are made of weathering steel, stainless steel or ordinary structural steel.
[0059] In a specific embodiment of the present invention, the second hinged slot 13 at the end of the beam gap telescopic structure 1 is fixedly connected to the transverse plate of the second L-shaped plate 32 by bolts.
[0060] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A beam seam connection assembly, wherein the beam seam (5) is a gap between a first beam body (6) and a second beam body (7) arranged in parallel with each other, and the beam seam connection assembly (11) spans the beam seam (5) and connects the first beam body (6) and the second beam body (7), characterized in that: include: A first T-shaped connecting piece (111), the top of the first T-shaped connecting piece (111) is an arc surface and a hinged female head (1111) is provided on one lateral end thereof, and the bottom end of the first T-shaped connecting piece (111) is hingedly connected to the first beam body (6); A second T-shaped connecting piece (112), wherein the top of the second T-shaped connecting piece (112) is an arc surface and an articulated male head (1121) is fixed to one end of the second T-shaped connecting piece (112) close to the articulated female head (1111), the articulated male head (1121) is articulated to the articulated female head (1111), and the bottom end of the second T-shaped connecting piece (112) is articulated to the second beam body (7).
2. A beam joint connection assembly according to claim 1, characterized in that: The first T-shaped connecting piece (111) comprises a first transverse plate (1112) and a first longitudinal plate (1113) which are vertically fixedly connected, the top surface of the first transverse plate (1112) being an arc surface and the hinged female head (1111) being provided at one side end thereof, and the first longitudinal plate (1113) being hingedly connected to the first beam body (6); the second T-shaped connecting piece (112) comprises a second transverse plate (1122) and a second longitudinal plate (1123) which are vertically fixedly connected, the top surface of the second transverse plate (1122) being an arc surface and the hinged male head (1121) being fixed at one side end thereof close to the hinged female head (1111), and the second longitudinal plate (1123) being hingedly connected to the second beam body (7).
3. A beam joint connection assembly according to claim 2, characterized in that: The hinged female head (1111) is an arc-shaped groove, and the hinged male head (1121) is a ball head matching the arc-shaped groove.
4. A beam joint expansion structure, characterized in that: The invention comprises a plurality of first hinged slots (12) and second hinged slots (13) formed in pairs, a plurality of limit ropes (14), and a plurality of beam joint connection components (11) according to any one of claims 1 to 3, wherein the beam joint (5) has an expansion direction in the x direction, a plurality of the first hinged slots (12) are each provided with a hinged slot 1 (121), a plurality of the second hinged slots (13) are each provided with a hinged slot 2 (131), and a plurality of the first hinged slots (12) and a plurality of the second hinged slots (13) are alternately connected along the x direction. Arranged and sequentially connected and slidably connected to the second beam body (7) through multiple limiting ropes (14), the bottom ends of multiple first T-shaped connecting members (111) are all fixed with hinge protrusions (1114), and the multiple hinge protrusions (1114) are hinged to multiple hinge grooves 1 (121) one by one, and the bottom ends of multiple second T-shaped connecting members (112) are all fixed with hinge blocks (1124), and the multiple hinge blocks (1124) are hinged to multiple hinge grooves 2 (131) one by one.
5. A beam seam connection device, characterized in that: The invention comprises a first fixing member (2), a second fixing member (3), a cross-seam beam (4) and the beam seam telescopic structure (1) as claimed in claim 4, wherein the first fixing member (2) is fixed to the first beam body (6), the second fixing member (3) is fixed to the second beam body (7), one end of the cross-seam beam (4) is hinged to the first fixing member (2), and the other end is hinged to the first hinge groove body (12) at the head end of the beam seam telescopic structure (1), and the second hinge groove body (13) at the end of the beam seam telescopic structure (1) is fixedly connected to the second fixing member (3).
6. A beam seam connection device according to claim 5, characterized in that: The first fixing member (2) comprises a first embedded member (21), a first L-shaped plate (22) and a limiting protrusion (23); the first embedded member (21) is embedded and fixed in the first beam body (6); the longitudinal plate of the first L-shaped plate (22) is fixed on the first embedded member (21); the limiting protrusion (23) fixes the transverse plate of the first L-shaped plate (22) and forms a third hinge groove (26) with its longitudinal plate; the bottoms of the two ends of the cross-seam beam (4) are respectively fixed with a first hinge joint (24) and a second hinge joint (25); the first hinge joint (24) is hinged to the third hinge groove (26), and the second hinge joint (25) is hinged to the first hinge groove body (12) at the head end of the beam seam telescopic structure (1).
7. A beam seam connection device according to claim 6, characterized in that: The second fixing member (3) comprises a second embedded member (31) and a second L-shaped plate (32); the second embedded member (31) is embedded and fixed in the second beam body (7); the longitudinal plate of the second L-shaped plate (32) is fixed on the second embedded member (31); and the second hinged groove body (13) at the end of the beam joint telescopic structure (1) is fixedly connected to the transverse plate of the second L-shaped plate (32).
8. A beam seam connection device according to claim 7, characterized in that: The transverse plate of the first L-shaped plate (22) and the transverse plate of the second L-shaped plate (32) are respectively fixed to the first beam body (6) and the second beam body (7) by bolts.
9. A beam seam connection device according to claim 7, characterized in that: The first embedded part (21), the first L-shaped plate (22), the limiting protrusion (23), the second embedded part (31), the second L-shaped plate (32), the first T-shaped connecting part (111) and the second T-shaped connecting part (112) are made of weathering steel, stainless steel or ordinary structural steel.
10. A beam seam connection device according to claim 7, characterized in that: The second hinged groove body (13) at the end of the beam gap telescopic structure (1) is fixedly connected to the transverse plate of the second L-shaped plate (32) by means of bolts.