A cable-stayed cable construction platform for a suspension bridge

Abstract

The present invention provides a construction platform for the stay cables of a suspension bridge, which includes two support beams for being erected on the bridge body. There are frame bars erected and installed between the two support beams. A first hook structure is fixedly provided at the bottom of the support beam. A second hook structure is installed at the end of the support beam far from the first hook structure. The second hook structure can be adjusted to be flipped above the top surface of the support beam, and the second hook structure can be adjusted to move along the length direction of the support beam and be locked by bolts. The second hook structure moves to be clamped on the bridge body. Locking mechanisms are provided on both the first hook structure and the second hook structure. After being adjusted, the locking mechanisms can abut against the bridge body to form a lock. The structure is novel, and it can realize the dual cooperation of bolt connection and clamping support, effectively enhancing the support strength and improving the safety of construction operations.

Description

Technical Field

[0001] The invention relates to the field of cable construction, and more specifically to a construction platform for inclined cables of a suspension bridge. Background Art

[0002] During the construction of a suspension bridge, the most important thing is the installation of the cable-stayed cable. After the cable-stayed cable is installed and connected, it needs to be adjusted in tension. The operation is relatively complicated and time-consuming. Therefore, it is necessary to install a construction platform on the bridge body to facilitate the construction.

[0003] However, most of the current construction platforms are built with channel steels, and most of them are only fixed by bolts. The force mainly acts on the bolts, and the supporting strength is relatively limited, which poses a safety hazard and needs to be improved. Summary of the invention

[0004] In order to overcome the defects of the prior art, the technical problem to be solved by the present invention is to propose a suspension bridge cable-stayed construction platform, which has a novel structure and can achieve dual coordination of bolt connection and clamping support, effectively enhance the support strength and improve the safety of construction operations.

[0005] To achieve this object, the present invention adopts the following technical solutions:

[0006] The present invention provides a construction platform for a cable-stayed suspension bridge, comprising two support beams for being erected on a bridge body, a frame bar being erected and installed between the two support beams, a first hook structure being fixedly provided at the bottom of the support beam, a second hook structure being installed at the end of the support beam away from the first hook structure, the second hook structure being adjusted to be flipped to above the top surface of the support beam, and the second hook structure being adjusted to be movable along the length direction of the support beam and being locked by bolts, the second hook structure being moved to be clamped on the bridge body; locking mechanisms are provided on both the first hook structure and the second hook structure, and the locking mechanisms can be adjusted to abut against the bridge body to form a lock.

[0007] In a preferred technical solution of the present invention, the second hook structure includes a second L-shaped frame, a limiting column, and an inserting column. The limiting column vertically fixes the top side wall of the second L-shaped frame and is located on one side of the hook portion of the second L-shaped frame. The inserting column is a cylindrical structure, and the limiting column is a square column structure. The inserting column is fixed to the end face of the limiting column. A limiting groove is provided at the end of the support beam, and a plug hole is provided at the bottom of the limiting groove. The shape of the plug hole is adapted to the shape of the inserting column, and the shape of the limiting column is adapted to the shape of the limiting groove. When the limiting column is pulled out of the limiting groove, the second L-shaped frame can rotate and swing around the axis of the plugging column. When the limiting column is inserted into the limiting groove, the second L-shaped frame cannot rotate. When the limiting column is inserted into the limiting groove, it can be fixed by bolts. The locking mechanism is installed at the hook portion of the second L-shaped frame.

[0008] In a preferred technical solution of the present invention, the locking mechanism includes a screw rod, a head fixedly provided at the bottom end of the screw rod, and a pressing member installed at the top end of the screw rod; second threaded holes are provided on the hook portions of the first hook structure and the second hook structure, and the screw rod is threadedly connected and cooperated with the second threaded holes and penetrates through the hook portions through the second threaded holes; the pressing member is movably cooperated with the screw rod, and the pressing member moves up and down along with the screw rod.

[0009] In a preferred technical solution of the present invention, the pressing member includes a support plate, a pressing plate, and a limiting plate. A circular sunken groove is formed in the middle of the top surface of the support plate, a through hole is formed at the bottom of the sunken groove, and the diameter of the through hole is adapted to the outer diameter of the screw rod. The screw rod movably penetrates through the through hole; the shape of the limiting plate is adapted to the shape of the sunken groove, and the top end of the screw rod is fixedly welded to the middle of the bottom surface of the limiting plate; the pressing plate is fixed to the top surface of the support plate by screws, so that the limiting plate is rotatably clamped in the sunken groove.

[0010] In a preferred technical solution of the present invention, the first hook structure is an L-shaped frame structure, and the hook portion is bent toward one side of the center of the support beam, and the locking mechanism is installed at the hook portion.

[0011] In a preferred technical solution of the present invention, extension plates are fixedly provided at the bottoms of both side walls of the support beam. A plurality of second through holes are formed in the extension plates, and the second through holes are evenly spaced along the length direction of the extension plates; the support beam is fixedly installed on the bridge body through bolts penetrating through the extension plates.

[0012] In a preferred technical solution of the present invention, clamping grooves are formed on both side walls of the support beam, the clamping grooves between the two support beams are correspondingly arranged, clamping blocks are fixedly provided at the ends of the frame bars corresponding to the clamping grooves, the shape of the clamping blocks is adapted to the shape of the clamping grooves, and the clamping blocks are clamped in the clamping grooves and reinforced by bolts.

[0013] The beneficial effects of the present invention are as follows:

[0014] The present invention provides a suspension bridge stay cable construction platform, which has a novel structure and includes a support beam and a frame bar for connecting the support beams. The support beam is erected and installed on the bridge body, and the connection part is fixed by bolts; a first hook structure is fixedly provided at the bottom of the support beam, and a second hook structure is installed at the end of the support beam. The first hook structure and the second hook structure can be mutually clamped with the bridge body to disperse part of the force of the support beam, and the double cooperation of bolt connection and clamping support can be realized, effectively enhancing the support strength and improving the safety of construction operations;

[0015] Among them, the second hook structure can be rotated and telescopically adjusted. During hoisting, the second hook structure can be positioned above the support beam, facilitating the support beam to abut against the top surface of the bridge body, so as to adjust the fit between the first hook structure and the bridge body; when installing the support beam, the first hook structure can be first clamped to the bridge body, and then the second hook structure can be adjusted to be clamped to the bridge body, thereby completing the clamping of the first hook structure and the second hook structure to the bridge body, and the installation and construction are relatively convenient;

[0016] Moreover, locking mechanisms are provided on the first hook structure and the second hook structure. After the locking mechanisms are adjusted, they can abut against the bridge body to form a lock, further strengthening the connection between the support beam and the bridge body, thereby improving the overall stability of the construction platform. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the use of a suspension bridge stay cable construction platform provided in a specific embodiment of the present invention;

[0018] Figure 2 is a top view of a suspension bridge stay cable construction platform provided in a specific embodiment of the present invention;

[0019] Figure 3 is a schematic diagram of the hanging and placing of the support beam and the second hook structure provided in a specific embodiment of the present invention;

[0020] Figure 4 is a cross-sectional view of the mating structure of the support beam and the second hook structure provided in a specific embodiment of the present invention.

[0021] 100, support beam; 110, limit groove; 120, jack; 130, extension plate; 140, card slot; 150, first through hole;

[0022] 200, frame bar; 210, clamping block;

[0023] 300, bridge body; 400, first hook structure; 500, second hook structure; 510, second L-shaped frame; 520, limit post; 521, first threaded hole; 530, insertion post;

[0024] 600, locking mechanism; 610, screw rod; 620, head; 630, pressing member; 631, support plate; 632, pressing plate; 633, limit plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific embodiments.

[0026] As Figures 1 to 4As shown in the figure, in a specific embodiment of the present invention, a cable-stayed cable construction platform for a suspension bridge is disclosed, which includes two support beams 100 that are erected on the bridge body 300 and fixed by bolts at the connection. A frame bar 200 is erected and installed between the two support beams 100. A first hook structure 400 is fixedly provided at the bottom of the support beam 100. A second hook structure 500 is installed at the end of the support beam 100 away from the first hook structure 400. The second hook structure 500 can be adjusted to be flipped above the top surface of the support beam 100, and the second hook structure 500 can be adjusted to move along the length direction of the support beam 100 and be locked by bolts. The second hook structure 500 moves to be clamped on the bridge body;

[0027] Locking mechanisms 600 are provided on both the first hook structure 400 and the second hook structure 500. After adjustment, the locking mechanisms 600 can abut against the bridge body to form a lock; One end of the support beam away from the second hook structure extends outward to an overhead state, so as to provide sufficient operating space for the threading of the cable and for installation, and then the cable is installed and adjusted.

[0028] The above-mentioned cable-stayed cable construction platform for a suspension bridge has a novel structure, including support beams and frame bars for connecting the support beams. The support beams are erected and installed on the bridge body and fixed by bolts at the connection; A first hook structure is fixedly provided at the bottom of the support beam, and a second hook structure is installed at the end of the support beam. The first hook structure and the second hook structure can be mutually clamped with the bridge body to disperse part of the force of the support beam, and can realize the dual cooperation of bolt connection and clamping support, effectively strengthening the support strength. Even when applying force at the overhead end of the support beam, stable support can be provided, improving the safety of construction operations;

[0029] Among them, the second hook structure can be rotated and telescopically adjusted. During hoisting, the second hook structure can be positioned above the support beam to facilitate the support beam to abut against the top surface of the bridge body, so as to adjust the cooperation between the first hook structure and the bridge body; When installing the support beam, the first hook structure can be first clamped with the bridge body, and then the second hook structure can be adjusted to make the second hook structure clamped with the bridge body, so as to complete the clamping of the first hook structure and the second hook structure with the bridge body, and the installation and erection are relatively convenient;

[0030] Moreover, locking mechanisms are provided on the first hook structure and the second hook structure. After adjustment, the locking mechanisms can abut against the bridge body to form a lock, which can further connect the support beam and the bridge body, thereby improving the overall stability of the construction platform.

[0031] It should be noted that a protective net can also be installed on the top surfaces of the support beam and the frame bar to further improve safety.

[0032] Furthermore, the second hook structure 500 includes a second L-shaped frame 510, a limiting post 520, and an inserting post 530. The limiting post 520 is vertically fixed to the top side wall of the second L-shaped frame 510 and is located on one side of the hook portion of the second L-shaped frame 510. The inserting post 530 is of a cylindrical structure, and the limiting post 520 is of a square column structure. The inserting post 530 is fixedly arranged at the end face of the limiting post 520. A limiting groove 110 is formed at the end of the support beam 100, and a jack 120 is provided at the bottom of the limiting groove 110. The shape of the jack 120 is adapted to the shape of the inserting post 530, and the shape of the limiting post 520 is adapted to the shape of the limiting groove 110. When the limiting post 520 is withdrawn from the limiting groove 110, the second L-shaped frame 510 can rotate and swing around the axis of the inserting post 530. When the limiting post 520 is inserted into the limiting groove 110, the second L-shaped frame cannot rotate. And when the limiting post 520 is inserted into the limiting groove 110, it can be fixed by bolts. This structural design can realize the position locking of the second L-shaped frame through the cooperation of the limiting post and the limiting groove, so that the second L-shaped frame cannot rotate after swinging to a preset position, which is convenient for aligning the mounting holes and installing the bolts. The cooperation of the inserting post and the jack can provide a fulcrum for rotation. When the limiting post is withdrawn from the limiting groove, the inserting post is still inserted into the jack at this time, which can make the second L-shaped frame rotate around the axis of the inserting post. The locking mechanism 600 is installed at the hook portion of the second L-shaped frame 510.

[0033] Furthermore, a first through hole 150 is formed in the top surface of the limiting groove 110. The first through hole is of a strip-shaped hole structure and extends along the length direction of the limiting groove. A first threaded hole 521 is provided on the limiting post 520. The first threaded hole penetrates through the limiting post, and the axis of the first threaded hole is perpendicular to the hook portion of the second L-shaped frame. This structural design can install and reinforce the adjusted limiting post with bolts, prevent the limiting post from detaching, and also prevent the position of the second L-shaped frame from changing.

[0034] Furthermore, the number of the first threaded holes is 2, which can facilitate the alignment of the first threaded holes and the first through holes. If it can be fixed by two bolts, it will be fixed by two bolts to strengthen the connection.

[0035] Furthermore, chamfers are provided at the edge of the port of the limiting groove and the edge of the port of the first jack, which can facilitate the inserting post to extend into the jack and the limiting post to be inserted into the limiting groove, and is convenient for adjustment operation.

[0036] Furthermore, the second L-shaped frame, the limiting post, and the inserting post are of an integrally formed structure, which can ensure the structural strength of the second hook structure itself and prevent it from being easily bent or damaged.

[0037] Further, the locking mechanism 600 includes a screw 610, a head 620 fixedly provided at the bottom end of the screw 610, and a pressing member 630 mounted at the top end of the screw 610; second threaded holes are provided on the hook portions of the first hook structure 400 and the second hook structure 500, and the screw 610 is threadedly connected and matched with the second threaded holes and penetrates through the hook portions via the second threaded holes; the pressing member 630 is movably matched with the screw 610, and the pressing member 630 moves up and down along with the screw 610; when the screw rotates, lifting movement can be achieved, and the pressing member does not rotate along with the screw, so as to change the position distance between the pressing member and the bridge body. When the pressing member rises to abut against the bridge body, due to the threaded connection and matching of the screw with the second threaded hole, stable clamping cooperation can be achieved; further, the head is a rhombic prism structure, which is convenient for cooperation with tools to perform stable tightening and clamping; it should be noted that the cooperation between the screw and the head can be made by customizing the bolt structure, so that the side wall of the end of the screw away from the head is a smooth surface, which is convenient for installation and cooperation with the pressing member.

[0038] Further, the pressing member 630 includes a support plate 631, a pressing plate 632, and a limiting plate 633. A circular sunken groove is formed in the middle of the top surface of the support plate 631, a through hole is formed at the bottom of the sunken groove, and the diameter of the through hole is adapted to the outer diameter of the screw 610, and the screw movably penetrates through the through hole; the shape of the limiting plate 633 is adapted to the shape of the sunken groove, and the top end of the screw 610 is fixedly welded to the middle of the bottom surface of the limiting plate 633; the pressing plate 632 is fixed to the top surface of the support plate 631 by screws, so that the limiting plate is rotatably clamped in the sunken groove, which can not only achieve rotational cooperation, but also effectively prevent the pressing member from detaching from the screw; more specifically, during installation, the screw passes through the second threaded hole, the end of the screw penetrates through the support plate, then the limiting plate is welded to the screw, and finally the pressing plate is installed; further, a convex block is fixedly provided on the bottom surface of the limiting plate, and a slot is recessed on the top surface of the screw. The convex block is a prismatic structure, and the shape of the convex block is adapted to the shape of the slot. The convex block is clamped in the slot, and the limiting plate is welded and fixed to the top surface of the screw, which can ensure the accurate installation position of the limiting plate and form rotational cooperation between the limiting plate and the sunken groove.

[0039] Further, the first hook structure 400 is an L-shaped frame structure, and the hook portion is bent toward the center side of the support beam 100, and the locking mechanism 600 is installed at the hook portion; the first hook structure and the support beam are integrally formed and welded and reinforced at the connection, which can effectively ensure the connection between the first hook structure and the support beam, ensure the force on the first hook structure, and thus perform stable erection and support.

[0040] Further, extension plates 130 are fixedly provided at the bottoms of both side walls of the support beam 100, and a plurality of second through holes are formed in the extension plates. The second through holes are evenly spaced along the length direction of the extension plates; the support beam is fixedly installed on the bridge body through bolts penetrating through the extension plates, providing basic connection and installation, and further preventing the support beam from running off.

[0041] Further, clamping grooves 140 are formed on both side walls of the support beam 100. The clamping grooves between the two support beams are arranged correspondingly. The end parts of the frame bars 200 are fixedly provided with clamping blocks 210 corresponding to the clamping grooves. The shape of the clamping blocks 210 is adapted to the shape of the clamping grooves 140. The clamping blocks are clamped in the clamping grooves and reinforced by bolts. The clamping grooves are of a T-shaped groove structure or a dovetail groove structure. The shape of the clamping blocks is adapted to the shape of the clamping grooves, which can effectively limit the distance between the two support beams, so that the two support beams will not easily become loose, effectively strengthening the connection between the two support beams.

[0042] Further, at least two frame bars are provided. At least one frame bar is installed on the middle parts of the two support beams, and the other frame bar is installed at the end positions of the overhead ends of the two support beams, further strengthening the connection between the two support beams and ensuring the support strength.

[0043] The present invention is described by way of preferred embodiments. Those skilled in the art will know that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of the present invention. The present invention is not limited by the specific embodiments disclosed herein, and other embodiments falling within the scope of the claims of this application belong to the scope of protection of the present invention.

Claims

1. A cable-stayed cable construction platform for a suspension bridge, characterized in that: It includes two support beams which are used to be erected on the bridge body. There are frame bars erected between the two support beams. A first hook structure is fixedly arranged at the bottom of the support beam. A second hook structure is installed at the end of the support beam far from the first hook structure. The second hook structure can be adjusted to be flipped above the top surface of the support beam, and the second hook structure can be adjusted to move along the length direction of the support beam and be locked by bolts. The second hook structure moves to be stuck on the bridge body; locking mechanisms are provided on both the first hook structure and the second hook structure. After the locking mechanisms are adjusted, they can abut against the bridge body to form a lock; The second hook structure includes a second L-shaped frame, a limit post, and an insertion post. The limit post is vertically fixed on the top side wall of the second L-shaped frame and is located on one side of the hook part of the second L-shaped frame; the insertion post is a cylindrical structure, the limit post is a square column structure, and the insertion post is fixedly arranged on the end face of the limit post; a limit groove is opened at the end of the support beam, a jack is provided at the bottom of the limit groove, the shape of the jack is adapted to the shape of the insertion post, the shape of the limit post is adapted to the shape of the limit groove. When the limit post is pulled out of the limit groove, the second L-shaped frame can rotate and swing around the axis of the insertion post. When the limit post is inserted into the limit groove, the second L-shaped frame cannot rotate; and when the limit post is inserted into the limit groove, it can be fixed by bolts; the locking mechanism is installed at the hook part of the second L-shaped frame.

2. The cable-stayed cable construction platform for a suspension bridge according to claim 1, characterized in that: The locking mechanism includes a screw rod, a head fixedly arranged at the bottom end of the screw rod, and a pressing member installed at the top end of the screw rod; second threaded holes are provided on the hook parts of both the first hook structure and the second hook structure. The screw rod is threadedly connected and matched with the second threaded holes and penetrates through the hook parts through the second threaded holes; the pressing member is movably matched with the screw rod, and the pressing member moves up and down along with the screw rod.

3. The cable-stayed cable construction platform for a suspension bridge according to claim 2, characterized in that: The pressing member includes a support plate, a pressing plate, and a limit plate. A circular sunken groove is opened in the middle of the top surface of the support plate. A through hole is opened at the bottom of the sunken groove. The diameter of the through hole is adapted to the outer diameter of the screw rod. The screw rod movably penetrates through the through hole; the shape of the limit plate is adapted to the shape of the sunken groove. The top end of the screw rod is fixedly welded to the middle of the bottom surface of the limit plate; the pressing plate is fixed on the top surface of the support plate by screws, so that the limit plate is rotationally stuck in the sunken groove.

4. The cable-stayed cable construction platform for a suspension bridge according to claim 1, characterized in that: The first hook structure is an L-shaped frame structure and the hook part is bent towards the center of the support beam, and the locking mechanism is installed at the hook part.

5. The cable-stayed cable construction platform for a suspension bridge according to claim 1, characterized in that: Extension plates are fixedly provided at the bottoms of both side walls of the support beam. A plurality of second through holes are opened on the extension plates. The second through holes are evenly spaced along the length direction of the extension plates; the support beam is fixedly installed on the bridge body through bolts penetrating through the extension plates.

6. The cable-stayed cable construction platform for a suspension bridge according to claim 1, characterized in that: Card slots are provided on both side walls of the support beam, and the card slots between the two support beams are arranged correspondingly. Clamping blocks are fixedly provided at the ends of the frame bars corresponding to the card slots, and the shape of the clamping blocks is adapted to the shape of the card slots. The clamping blocks are clamped in the card slots and are reinforced by bolts.

Images