Novel bidirectional limiting inhaul cable coupling beam device

Abstract

The utility model provides a novel bidirectional limiting inhaul cable coupling beam device, and belongs to the technical field of bridge engineering. Comprising a base, steering gears, pin shafts, steel wire ropes and steel wire rope clamps. The beam connecting device comprises paired bases, and when beams are connected, the two bases are installed on the beam body and the side face of the beam body respectively. When a beam pier (table) is connected, one base is installed on the bottom face of a beam body, and the other base is installed on the side face of the pier (table). The base is connected with the steering gear through a pin shaft; the steel wire rope is fixed through the steel wire rope clamp and connected to the steering gear through the pin shaft to form a closed loop, and the beam body and the beam body or the bridge pier (table) are connected into a whole. When a beam body and a beam body or a bridge pier (table) move relatively, the steel wire rope is in a tightened state, the steering gear is driven to rotate, the coupling beam device restrains longitudinal and transverse movement of the beam body at the same time, effective limiting is provided, the bearing performance of the whole coupling beam device is improved, and the safety of a bridge structure is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of bridge earthquake resistance, and particularly relates to a novel bidirectional limit-stay cable connecting beam device. Background Art

[0002] In order to reduce the damage to the bridge structure after an earthquake, prevent the upper and lower structures of the bridge from having large relative displacements, and prevent beam drops, and ensure smooth road and bridge rescue after an earthquake, the seismic resistance of the bridge structure must be considered during both the design and operation phases, but the seismic resistance of the bridge structure can also be effectively enhanced by adding seismic components.

[0003] The anti-falling beam system is the last safety guarantee facility to prevent the bridge from falling beams when the bridge structure encounters unexpected earthquake load excitation. When the bridge is under the action of a rare earthquake, the shear deformation of the bridge support is very likely to exceed the allowable shear deformation of the support, eventually causing the bridge superstructure to fall. At this time, the anti-falling beam device is activated to prevent the occurrence of falling beam damage.

[0004] The anti-falling beam system is the ultimate safety guarantee to prevent the bridge structure from falling beam earthquake damage. It is also an important facility to prevent the bridge from being devastated in an earthquake. The system can withstand the effects of the entire earthquake sequence. Therefore, studying the impact of the anti-falling beam system on the bridge structure under earthquake action is of great practical and positive significance.

[0005] The connecting beam device is the second restraint device in the anti-falling beam system. It is designed to prevent the beam from falling under the expected earthquake action and plays a very important role in the anti-falling beam system.

[0006] The types of connecting beam devices currently used in bridge engineering are mainly: connecting plate type, rod type, and cable type. The connecting plate type connecting beam device mainly connects the connecting plate with the components installed on the beam body and the pier (beam body) respectively through bolts. At the same time, a certain design gap is reserved between the bolts and the components in the direction of the bridge to ensure that the support can play its role to the maximum extent under the expected earthquake. This structure mainly relies on rigid limitation, with a short life, poor reliability, and a single limiting direction. The rod type connecting beam device is an earlier reinforcement measure. The middle connecting rod mainly uses large-diameter steel bars. It generally adopts a beam connection type and is mainly used for longitudinal anti-falling beams. Its limiting direction is single. The cable type connecting beam device uses a highly flexible cable material to connect the beam body. Its structure is complex and the limiting direction is single. Utility Model Content

[0007] The utility model aims to provide a novel bidirectional limiting cable connecting beam device in view of the problem that the connecting beam device in the prior art has a single limiting direction.

[0008] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a novel bidirectional limit cable connecting beam device, characterized in that it includes:

[0009] The bases appear in pairs and are fixed on beams, piers or abutments; the bases are steel structural members and are fixed to the side or bottom surface of the beam body by bolts through bolt holes.

[0010] The steering gears, the number of which is the same as that of the bases, are rotatably installed in the corresponding bases; the steering gears are provided with cavities with open structures, and each group of cavities is provided with a pin shaft;

[0011] The steel wire rope is wound around the pins in the two sets of bases and connected end to end.

[0012] In a further embodiment, the base is fixed to the beam, pier or abutment by bolts.

[0013] In a further embodiment, it also includes: a wire rope clamp for fixing and clamping the wire rope.

[0014] In a further embodiment, the steel wire rope is a whole piece, and the number of windings can be one or more. According to the number of windings of the steel wire rope, the tension that the connecting beam device can withstand can be easily set according to different working conditions, and it is also easy to form serial production.

[0015] The steel wire rope can be a stainless steel wire rope or an ordinary steel wire rope protected by a plastic shell, etc., which has good durability; under general environmental requirements, the steel wire rope can be an ordinary steel wire rope.

[0016] In a further embodiment, the base is welded or directly cast with a lug plate for mounting a steering gear.

[0017] In a further embodiment, the steel wire rope is wound around the pins of the two diverters to form a whole, and the slack degree of the winding is adjusted according to the actual distance between the beams or between the beams and the piers / platforms at the construction site.

[0018] The beneficial effects of the utility model are as follows: the novel bidirectional limit-tensioned cable-connected beam device described in the utility model comprises a pair of bases, a pair of deflectors, a pin shaft, a steel wire rope and a steel wire rope clamp, wherein a single base, a deflector and a pin shaft form a group, with two groups in total, one of which fixes the base to the side or bottom of the beam body by anchor bolts, and the other group is fixed to the side of the beam body or the pier (platform) by the same method; in each group, the base and the deflector are connected by a pin shaft, and the pin shaft is fixed through the hole of the deflector; the two groups of component units are connected to form a whole by winding the steel wire rope around the pin shafts of the two groups; when an earthquake occurs, relative movement will occur between the beam body or the beam pier (platform), so that the steel wire rope is in a taut state, and drives the deflector to rotate, so that the beam connecting device simultaneously constrains the longitudinal and lateral movement of the beam body, provides effective limiting, improves the bearing capacity of the entire beam connecting device, and ensures the safety of the bridge structure.

[0019] The wire rope is the main force transmission component connecting the two beams. The force transmission size is related to the wire rope diameter and the number of wire rope windings. The more windings, the greater the force transmission, and the cost increase is very small. The force-bearing ends of the wire rope are connected at the head and tail with a wire rope clamp. The wire rope can be a stainless steel wire rope or an ordinary wire rope protected by a plastic shell. Under general environmental requirements, the wire rope can be an ordinary wire rope with good durability and long service life. The wire rope is light in weight and is very convenient to repair and replace. The length of the wire rope can be easily adjusted, and the construction accuracy requirements for the relative position of the base installation in any direction are low, which is convenient for construction.

[0020] The steering gear can be easily set to different steering angles according to different displacement requirements. It can be applied to different working conditions and has stronger adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic structural diagram of a novel bidirectional limit-stayed cable connecting beam device described in Example 1;

[0022] Figure 2 It is a schematic diagram of the installation of a new type of bidirectional limit cable-connecting beam device when connecting beams;

[0023] Figure 3 It is a schematic diagram of the installation of a new type of bidirectional limit cable connecting beam device when connecting beam piers (platforms);

[0024] Figure 4 is a schematic diagram of the steering gear;

[0025] Figure 5 This is a schematic diagram of the base.

[0026] Icons: 11-beam; 12-beam; 13-pier; 1-base; 2-steering gear; 3-pin; 4-wire rope; 5-wire rope clamp. DETAILED DESCRIPTION

[0027] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0028] Example 1

[0029] The utility model is described in detail below in conjunction with the accompanying drawings.

[0030] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0031] Example 1

[0032] The present embodiment provides a novel bidirectional limit-stayed cable-connected beam device, comprising a pair of bases (1), a pair of deflectors (2), a pin (3), a steel wire rope (4), and a steel wire rope clamp (5), wherein a single base (1), a deflector (2), and a pin (3) form a group, a total of two groups. One group fixes the base (1) to the side of the beam body (11) by anchor bolts, and the other group is fixed to the side of the beam body (12) in the same way; in each group, the base (1) and the deflector (3) are rotatably connected, and the pin (1) passes through the hole of the deflector (2) for fixation; the steel wire rope (4) is wound around the pins (3) of the two groups to connect the two groups of component units to form a whole; when an earthquake occurs, the beam body (11) (12) will move relative to each other, so that the steel wire rope (4) is in a taut state, and drives the deflector (2) to rotate, so that the beam connection device simultaneously constrains the longitudinal and lateral movement of the beam body, provides effective limit, improves the bearing capacity of the entire beam connection device, and ensures the safety of the bridge structure.

[0033] It should be noted that the base is a steel structure, which is fixed to the side or bottom of the beam body by bolts through bolt holes.

[0034] The steel wire rope can be a stainless steel wire rope or an ordinary steel wire rope protected by a plastic shell, etc., which has good durability; under general environmental requirements, the steel wire rope can be an ordinary steel wire rope.

[0035] Example 2

[0036] The present embodiment provides a novel bidirectional limited-position cable-connected beam device, comprising a pair of bases (1), a pair of deflectors (2), a pin shaft (3), a steel wire rope (4), and a steel wire rope clamp (5), wherein a single base (1), a deflector (2), and a pin shaft (3) form a group, a total of two groups, one of which fixes the base (1) to the bottom surface of the beam body (11) by anchor bolts, and the other group is fixed to the side of the pier (platform) (13) by the same method; in each group, the base (1) and the deflector (3) are rotatably connected , the pin shaft (1) is passed through the hole of the deflector (2) for fixation; the two groups of component units are connected by winding the steel wire rope (4) around the two groups of pin shafts (3) to form a whole; when an earthquake occurs, relative movement will occur between the beam body (11) or (12) and the pier (platform) (13), so that the steel wire rope (4) is in a taut state and drives the deflector (2) to rotate, so that the connecting beam device simultaneously restricts the longitudinal and lateral movement of the beam body, provides effective limit, improves the bearing capacity of the entire connecting beam device, and ensures the safety of the bridge structure.

[0037] The steering gear (2) described in this solution may be provided with four holes, which are used to fix the pin shaft (3), and the steering gear (2) is fixed to the base (1) through the pin shaft (3). Figure 5 shown.

[0038] The force transmission of the steel wire rope (4) described in this solution is related to the diameter of the steel wire rope and the number of turns of the steel wire rope. The more turns the steel wire rope has, the greater the force transmission is, and the cost increases very little. The force-bearing ends of the steel wire rope are connected by a steel wire rope clamp (5). The steel wire rope can be a stainless steel wire rope or an ordinary steel wire rope protected by a plastic shell. Under general environmental requirements, the steel wire rope can be an ordinary steel wire rope with good durability and a long service life. The steel wire rope is light in weight and is very convenient to repair and replace. The length of the steel wire rope can be adjusted arbitrarily and conveniently, and the construction accuracy requirement for the relative position of the base installation in any direction is low, which is convenient for construction.

[0039] The buffer connecting beam device connects the beam body and the side of the beam body or the bottom of the beam body with the side of the pier (platform) through flexible steel wire ropes to form a whole, thereby improving the force-bearing mode of the bridge and preventing the occurrence of falling beams.

[0040] Due to the inaccuracy of the anchor bolt construction of the fixed base and the difference in installation temperature, the actual installation position will deviate from the designed position. The utility model can easily adjust the length of the wire rope so that the device can meet the requirements of the theoretical design; when the beam body and the beam body or the bridge pier (platform) are relatively displaced in the longitudinal and transverse directions, the wire rope is always only subjected to axial tension through the adjustment of the steering device, achieving the purpose of simultaneously restraining the longitudinal and transverse displacement of the beam body. The wire rope can also be easily replaced, and the entire device is easy to maintain.

[0041] 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 and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A novel bidirectional limit cable connecting beam device, characterized in that: include: Bases come in pairs and are fixed to beams, piers or abutments; The steering gears, the number of which is the same as that of the bases, are rotatably installed in the corresponding bases; the steering gears are provided with cavities with open structures, and each group of cavities is provided with a pin shaft; The steel wire rope is wound around the pins in the two sets of bases and connected end to end.

2. A novel bidirectional limit cable connecting beam device according to claim 1, characterized in that: The base is fixed on the beam, pier or abutment by bolts.

3. A novel bidirectional limit cable connecting beam device according to claim 1, characterized in that: Also includes: The wire rope clamp is used to fix and clamp the wire rope.

4. A novel bidirectional limit cable connecting beam device according to claim 1, characterized in that: The steel wire rope is a whole piece, and the number of winding circles can be one circle or more circles.

5. The novel bidirectional limit cable connecting beam device according to claim 1 is characterized in that: The base is welded or directly cast to form an ear plate for installing a steering gear.

6. A novel bidirectional limit cable connecting beam device according to claim 1, characterized in that: The wire rope is wound around the pins of the two steering gears to form a whole, and the slackness of the winding is adjusted according to the actual distance between the beams or between the beams and the piers / platforms at the construction site.

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