Bidirectional inhaul cable device for widening bridge

Abstract

The utility model discloses a widening bridge two-way inhaul cable device which comprises a supporting rod, main retaining rings are arranged at the two ends of the supporting rod, the length of the supporting rod is continuously reduced from the midspan to fulcrums on the two sides, the upper end and the lower end of the supporting rod are connected with auxiliary retaining rings, and the auxiliary retaining rings at the upper end are round retaining rings and connected to the bottoms of flanges. The two lower end retaining rings are connected with the steel guide pipe respectively, a round hole is formed in the middle of the steel guide pipe, and a longitudinal inhaul cable can penetrate through the round hole; generally, wing edges of the midspan portion are large in down-warping, so that the longitudinal inhaul cables are arranged in a height-variable broken line mode, namely the height of the supporting rods is adjusted, the effect of external prestress is achieved, and the longitudinal inhaul cables are anchored to the two bridge pier fulcrum cross beam portions. The steel guide pipes are filled with glass fiber foam materials, so that vibration of the inhaul cable is buffered, noise can be absorbed, interference to the environment is reduced, and vibration of the ends of the flanges is indirectly reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to bridge technical field, concretely is a kind of two-way cable device of wide bridge splicing. BACKGROUND

[0002] With the rapid development of China's social economy and transportation industry, the traffic volume between cities is increasingly expanding, and the early built highway cannot meet the growing traffic demand, so highway reconstruction and expansion become an urgent problem to be solved. Bridge widening technology is complex, construction is difficult, and various problems may occur after widening. Bridge widening has become the key and difficulty of highway reconstruction and expansion project.

[0003] The existing new and old bridge widening structure, under normal circumstances, the stiffness of new and old bridge is not the same, there is uneven settlement of foundation, deflection deformation difference is caused at both ends of the flange by vehicle load, stress at the joint cannot be offset, and then cracks are easily generated at the joint of new and old bridge or the time of crack generation cannot be slowed down, so that the joint is easily out of position under the influence of deformation difference, the bridge deck is damaged, the tensile stress at the root of flange is large, so that the joint and flange at the joint are in a relatively unfavorable state, therefore, a two-box cable device of wide bridge splicing capable of resisting deformation difference of flange is needed. SUMMARY

[0004] The technical problem solved by the utility model is to provide a two-way cable device of wide bridge splicing.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a two-way cable device of wide bridge splicing, comprising upper end auxiliary buckle ring, support rod, lower end auxiliary buckle ring, steel guide pipe, transverse cable, anchoring block, longitudinal cable and two-way cable, the upper end auxiliary buckle ring is provided with a buried section, the upper end auxiliary buckle ring is buried in the flange through the buried section, the other end of the upper end auxiliary buckle ring is a circular buckle ring extending out of the flange, the upper end auxiliary buckle ring extending out of the flange is connected with end main buckle ring on the support rod, and the support rod at the upper end auxiliary buckle ring extending out of the flange and the upper end main buckle ring are buckled, the support rod is connected with the support rod at the upper end main buckle ring, the lower end main buckle ring is arranged below the support rod, the lower end main buckle ring is buckled with the lower end auxiliary buckle ring, the lower end auxiliary buckle ring is filled with rubber, the lower end auxiliary buckle ring and the steel guide pipe are integrated, the steel guide pipe is sleeve-shaped, the steel guide pipe is provided with a limiting block at the bottom, the limiting block is a circular hole type, the limiting block can pass through the inside of the steel guide pipe through the transverse cable, and the limiting block is fixed in the box chamber through the anchoring block, the longitudinal cable passes through the anchoring block and is fixed at the fulcrum of the cross beam.

[0006] Preferably, the two-way cable is transverse cable and longitudinal cable, the transverse cable anchoring block and the longitudinal cable anchoring block are fixed in the flange two-side box chamber and the cross beam at one span fulcrum.

[0007] Preferably, the steel conduit is sleeve-shaped, filled with glass fiber foam material in the middle, the lower end auxiliary ring is filled with rubber material in the middle, and the round hole type limiting block is arranged on the lower side of the steel conduit.

[0008] Preferably, the number of the lower end auxiliary ring on one side is one, and the lower end auxiliary rings are arranged close to each other on both sides.

[0009] Preferably, the transverse cable passes through the steel conduit below through the limiting block, and the longitudinal cable passes through the center of the steel conduit to connect the steel conduits at different positions.

[0010] Preferably, the upper end auxiliary ring is embedded into the flange through the embedded section, the auxiliary ring is reserved outside, and the inside is filled with rubber material.

[0011] Preferably, the number of the upper end auxiliary ring on one side is one.

[0012] Preferably, the upper end main ring and the lower end main ring are arranged at both ends of the support rod and connected with the upper end auxiliary ring and the lower end auxiliary ring respectively.

[0013] Preferably, the annular radius of the upper end main ring and the lower end main ring is equal to the inner diameter of the upper end auxiliary ring and the lower end auxiliary ring.

[0014] Preferably, the length of the support rod changes at different positions from the midspan, and the longitudinal cable is arranged in a high fold line.

[0015] Compared with the prior art, the utility model has the advantages that: the utility model discloses a bidirectional cable mechanism, high bearing and strong durability of the cable, transmission of the steel conduit and the support rod, support of the flange end, the connection mode of the main auxiliary ring has certain rotation capacity at the upper and lower connections of the support rod, thus offsetting the deformation deflection difference and partial rotation angle of the flange ends due to uneven settlement and vehicle load, so that the bridge does not produce cracks or slows down the production of cracks under normal use. At the same time, the flange deflection is large at the midspan, so the longitudinal cable is arranged in a high fold line, the height of the support rod is adjusted, the function of external prestress is played, and the longitudinal cable is anchored to the bridge pier support point beam part. The steel conduit is filled with glass fiber foam material in the pipe, which can buffer the vibration of the cable, absorb noise, reduce environmental interference and indirectly reduce the vibration of the flange end. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a schematic view of the transverse structure of the utility model

[0017] Figure 2 is a front view of the upper end sub buckle ring.

[0018] Figure 3 is a side view and a front view of the support rod.

[0019] Figure 4 is a front view and a side view of the steel sleeve

[0020] Figure 5 is a schematic diagram of the longitudinal structure of the utility model

[0021] Reference numerals in the drawing:

[0022] 11, steel guide pipe; 12, lower end sub buckle ring; 13, limiting block;

[0023] 21, upper end sub buckle ring; 22, embedded section;

[0024] 31, support rod; 32, upper end main buckle ring; 33, lower end main buckle ring;

[0025] 41, transverse cable; 42, cable anchoring block;

[0026] 51, longitudinal cable; 52, longitudinal cable anchoring block DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0028] The utility model provides a kind of technical scheme: refer to the bidirectional cable device of the bridge of splicing width shown in the drawing Figure 1 Old bridge side is embedded by the way of hole boring, and new bridge side is embedded by the way of pre-burying, and is embedded in the two sides of new and old bridge respectively, and upper end sub buckle ring 21 extends out and is connected with upper end main buckle ring 32.

[0029] Upper end main buckle ring 32 is connected with support rod 31, and lower end is lower end main buckle ring 33, and lower end sub buckle ring 12 is connected with lower end main buckle ring 33, and lower end sub buckle ring 12 is integrated with steel guide pipe 11 and limiting block 13, since the upper and lower ends of support rod 31 are both buckled with two rings, small rotation is allowed, support rod and upper end buckle ring part are symmetrically arranged, to ensure uniformity of stress, the diameter of upper and lower end main buckle ring is same with sub buckle ring, to ensure close connection while allowing rotation, support rod 31 is integrated with upper and lower main buckle ring 32 and lower end main buckle ring 33, which is more optimal.

[0030] The transverse cable 41 is fixed to the two side webs by the transverse cable anchoring block after tensioning prestress, the middle part needs to pass through the limiting block 13 to provide upward supporting force for the supporting rod, the diameter of the round hole of the limiting block is same with the diameter of the transverse cable;

[0031] The longitudinal cable 51 is anchored at the end cross beam of each span by the longitudinal cable anchoring plate 52, and as shown in the figure, the flange deflection of the middle part of the span is large, so the longitudinal cable variable high broken line arrangement shown in the figure is adopted, that is, the height of the supporting rod is adjusted, which plays the role of external prestress, and the supporting rod 31 changes accordingly with the change of the distance from the middle of the span. Figure 5

[0032] The steel guide pipe 11 is filled with glass fiber foam material in the middle as shown in the figure, which can buffer the vibration of the cable and absorb noise, and reduce the disturbance to the environment. Figure 4

[0033] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.​​

Claims

1. A bidirectional cable device for widening bridge, comprising an upper end sub-clevis (21), a support rod (33), a lower end sub-clevis (12), a steel guide pipe (11), a transverse cable (41), an anchoring block (42), a longitudinal cable (51) and a bidirectional cable, characterized in that, The upper end sub buckle ring (21) is provided with a buried section (22), the upper end sub buckle ring (21) is buried in the flange through the buried section (22), the other end of the upper end sub buckle ring (21) is a circular buckle ring extending out of the flange, the upper end sub buckle ring (21) is connected with the end main buckle ring (32) through the support rod at the flange end, and the support rod (31) and the upper end main buckle ring (32) are buckled at the flange end of the upper end sub buckle ring (21), the support rod (31) is connected with the upper end main buckle ring (32), the lower end main buckle ring (33) is arranged below the support rod (31), the lower end main buckle ring (33) is buckled with the lower end sub buckle ring (12), the lower end sub buckle ring (12) is filled with rubber, and the lower end sub buckle ring (12) is integrated with the steel guide pipe (11), the steel guide pipe (11) is sleeve-shaped, the steel guide pipe (11) is provided with a limiting block (13) at the bottom, the limiting block (13) is a circular hole type, the limiting block (13) can pass through the inside of the steel guide pipe (11) through the transverse cable (41), and is fixed in the box chamber through the anchor block (42), the longitudinal cable (51) passes through the steel guide pipe (11) and is fixed at the fulcrum through the anchor block (52).

2. The device according to claim 1, characterized in that, The bidirectional cable is the transverse cable (41) and the longitudinal cable (51), and the transverse cable anchor block (42) and the longitudinal cable anchor block (52) are fixed to the box chambers on both sides of the flange and a cross beam at the fulcrum.

3. The device according to claim 1, characterized in that, The steel guide pipe (11) is sleeve-shaped, the middle part is filled with glass fiber foam material, the lower end sub buckle ring (12) is arranged on the upper side of the steel guide pipe (11), the lower end sub buckle ring (12) is filled with rubber material in the middle, and the circular hole type limiting block (13) is arranged on the lower side of the steel guide pipe (11).

4. The device according to claim 3, characterized in that, The number of the lower end sub buckle ring (12) on one side is one, and the lower end sub buckle ring (12) is arranged close together on both sides.

5. The device according to claim 2, wherein, The transverse cable (41) passes through below the steel guide pipe (11) through the limiting block (13), and the longitudinal cable (51) passes through the center of the steel guide pipe (11) so that the steel guide pipes (11) at different positions are connected.

6. The device according to claim 1, wherein, The upper end sub buckle ring (21) is embedded in the flange through the buried section (22), and the sub buckle ring (21) remains outside, and the inside is filled with rubber material.

7. The device according to claim 6, characterized in that, The number of the upper end sub buckle ring (21) on one side is one.

8. The device according to claim 1, characterized in that, The support rod (31) is provided with the upper end main buckle ring (32) and the lower end main buckle ring (33) at both ends, and is connected with the upper end sub buckle ring (21) and the lower end sub buckle ring (12) respectively.

9. The device according to claim 1, characterized in that, The annular radius of the upper end main buckle ring (32) and the lower end main buckle ring (33) is equal to the inner diameter of the upper end sub buckle ring (21) and the lower end sub buckle ring (12).

10. The device according to claim 1, characterized in that, The length of the support rod (31) changes at different positions from the cross beam, and the longitudinal cable (51) is arranged in a high broken line.

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