CN218454347U

CN218454347U - Permanent maintenance platform of public road bridge roof beam support of transition mound

Info

Publication number: CN218454347U
Application number: CN202222095080.6U
Authority: CN
Inventors: 韩海波; 王宏贵; 刘常虹; 薛明生; 侯文韬
Original assignee: PowerChina Zhongnan Engineering Corp Ltd
Current assignee: PowerChina Zhongnan Engineering Corp Ltd
Priority date: 2022-08-09
Filing date: 2022-08-09
Publication date: 2023-02-07
Anticipated expiration: 2032-08-09

Abstract

The utility model discloses a permanent maintenance platform for a highway bridge transition pier capping beam support, which comprises a vertical ladder system, a vertical suspension system and a truss platform system, wherein the vertical suspension system is respectively fixedly connected with the two sides of the transition pier capping beam; the truss platform systems are respectively anchored on the vertical suspension systems through bolts; the vertical ladder climbing system is respectively anchored on the outer sides of an anti-collision guardrail and a transitional pier capping beam of the bridge; the end of the vertical ladder climbing system is positioned in the truss platform system fence. The utility model has simple structure, less material consumption and low cost; the permanent platform is provided for daily maintenance and replacement of the highway bridge transition pier capping beam support, the construction period is greatly shortened, and the cost is reduced. Furthermore, the utility model discloses can once only accomplish the maintenance work of whole bent cap both sides support, improve work efficiency greatly.

Description

Permanent maintenance platform of public road bridge roof beam support of transition mound

Technical Field

The utility model relates to a highway bridge maintenance reinforcing technical field especially relates to a permanent maintenance platform of highway bridge transition mound bent cap support.

Background

Column type pier beam bridge accounts for than more in public road conventional bridge, because of column type pier beam bridge bent cap height is generally not big, and both ends have all set up the chamfer, is difficult to set up the permanent maintenance platform of support like railway bridge, otherwise can have the operation headroom not enough, and the maintainer can't be straight, overhauls the difficult condition. Therefore, at present, the maintenance of the highway bridge support mainly has the following two modes, one mode is a form from top to bottom, namely for the bent cap support needing maintenance, a worker enters the position near the support from the bridge floor through a bridge maintenance vehicle to carry out maintenance. The mode can basically adapt to the maintenance of the bridge bearing in various forms, but the defects are obvious, the bridge maintenance cost is high, the traffic needs to be interrupted, and the mode is difficult to be suitable for daily inspection. The other type is a form from bottom to top, namely, for the bent cap support needing to be overhauled, a worker enters the position near the support from the position under the bridge through a scaffold or a lift truck to carry out overhauling work. This kind of mode only can be used for the pier height lower, land pier and have the condition that the traffic is current under the bridge, is difficult to be applicable to bridges such as river pond, is more difficult to be applicable to mountain area high mound, and adopts the scaffold mode to need carry out ground treatment, and the preparation time is longer.

Chinese utility model patent publication No. CN 211922333U discloses an operation platform and system that bridge beam supports overhauld and changed, and above-mentioned two kinds of problems can be solved to this system, has nevertheless brought following new problem simultaneously:

1. the system is a temporary system. When a certain pier bent cap support needs to be overhauled, a transport vehicle and a small crane are matched, and the system can be used after being transported to a specified position and hoisted and installed. Only can accomplish to have the problem support to overhaul the change, can't accomplish conventional periodic overhaul, otherwise its expense will greatly increased.

2. The system is complex, has easily damaged components such as a rotating shaft, a telescopic truss and a stay cable, and is required to be maintained frequently, so that the guarantee rate is low.

3. The system can only overhaul the support on one side of one bent cap at each time, and for one bent cap, the system can complete the whole overhaul by being disassembled twice, so that the efficiency is low.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a permanent maintenance platform of highway bridge transition mound bent cap support, this platform molding is succinct, the cost is low, for the daily maintenance of support and change provide permanent platform, reduction of erection time and reduce cost greatly, have solved and can't accomplish conventional periodic maintenance and the problem that the cost of overhaul is high when highway bridge transition mound bent cap support overhauls.

In order to realize the purpose, the technical scheme of the utility model is that: the permanent maintenance platform for the cover beam support of the highway bridge transition pier comprises a vertical suspension system, a truss platform system and a vertical ladder climbing system; the vertical suspension system is respectively fixedly connected with two sides of the transition pier capping beam; the truss platform systems are respectively anchored on the vertical suspension systems through bolts; the vertical ladder climbing system is respectively anchored on the outer sides of an anti-collision guardrail and a transitional pier capping beam of the bridge; the end of the vertical ladder climbing system is positioned in the truss platform system fence.

After the construction is completed, the operator can enter the truss platform system on the side of the transition pier cap beam through the vertical ladder stand system at any time to carry out support replacement and daily maintenance. The platform provides a permanent platform for daily maintenance and replacement of the highway bridge bent cap support, a bridge inspection vehicle or other temporary measures are not needed, traffic is not needed to be sealed, the construction period is greatly shortened, and the cost is reduced.

Furthermore, the truss platform system comprises a first truss platform, a second truss platform and a connecting part, wherein the first truss platform and the second truss platform are connected through the connecting part, so that the vertical ladder climbing system can respectively reach two different overhauling platforms.

Furthermore, the first truss platform and the second truss platform are respectively positioned on two sides of the transition pier capping beam, and the maintenance work of the supports on two sides of the whole capping beam can be completed in one step.

Furthermore, the first truss platform and the second truss platform are arranged at different heights, so that the heights of the truss platforms can be adjusted to adapt to different heights of two sides of the transition pier cap beam.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the maintenance platform provides a permanent maintenance platform for maintenance of the capping beam support of the transition pier of the highway bridge; compared with a temporary maintenance platform, the daily regular inspection function of a maintenance unit can be realized, the system installation and the disassembly are not required to be carried out at every time, and a large amount of manpower and material resources are saved.

2. The maintenance platform is simple in shape, less in material consumption, low in manufacturing cost and capable of greatly reducing maintenance cost.

3. The maintenance platform covers the two sides of the bent cap, and maintenance personnel can complete maintenance work on the supports on the two sides of the whole bent cap at one time.

Drawings

Fig. 1 is a schematic front view of the maintenance platform provided by the present invention;

fig. 2 is a schematic view of a cross-sectional structure of the maintenance platform provided by the present invention;

fig. 3 is the utility model provides an overhaul platform look sideways at the schematic structure view.

In the figure, 1, a vertical suspension rod; 1', truss outer side vertical rods; 2. a truss longitudinal bar; 3. truss short cross bars; 3', truss long cross bars; 4. supporting rods in the truss; 5. a truss platform guardrail; 6. skirting boards; 7. a guardrail cross bar; 8. a vertical ladder climbing step; 9. a vertical ladder stand protection steel bar; 9', reinforcing protective steel bars of the vertical ladder stand; 10. a vertical ladder top anchoring system; 11. the vertical ladder stand lateral anchoring system; 12. a vertical suspension rod high-strength bolt; 13. a vertical ladder stand; 14. a foot pedal; 20. a transition pier capping beam; 21. an anti-collision guardrail; 30. a vertical suspension system; 31. a truss platform system; 32. a vertical ladder system; 40. a first truss platform; 41. a connecting portion; 42. a second truss platform.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments. It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. For convenience of description, the words "upper", "lower", "left" and "right" used herein refer to the directions of the drawings, and do not limit the structure of the drawings.

As shown in fig. 1-3, the permanent maintenance platform for a capping beam support of a highway bridge transition pier of the embodiment comprises three parts, namely a vertical ladder system 32, a vertical suspension system 30 and a truss platform system 31.

The vertical ladder in the vertical ladder system 32 mainly comprises I-steel, angle steel, a 10cm steel pedal and phi 10 protective steel bars. Vertical cat ladder mainly used operation personnel come and go the use from the bridge to operation platform, and cat ladder length should combine transition mound capping beam height to confirm, and vertical cat ladder mainly is by four logical long angle steels as main force transmission structure, and the welding of 10cm steel footboard is on two logical long angle steels of far away bridge section according to the preface, and the interval is 30cm. Meanwhile, four through-length angle steels are connected by phi 10 protective steel bars every 30cm, the contact positions need to be welded firmly, and the protective steel bars every 120cm phi 10 are replaced by angle steels so as to increase the connection of the four through-length angle steels. The vertical ladder anchoring system mainly comprises the contact positions of the vertical ladder anchoring system and the bridge anti-collision guardrail 21 and the transition pier capping beam 20, the anti-collision guardrail 21 and other anchoring systems adopt I-shaped steel with high bending and shearing resistance, and other positions adopt an angle steel high-strength bolt anchoring method, so that the vertical ladder anchoring system 32 is respectively anchored on the outer sides of the bridge anti-collision guardrail 21 and the transition pier capping beam 20. The vertical ladder climbing system 32 and the truss platform system 31 are in non-contact, and the tail end of the vertical ladder climbing system 32 is located in the enclosure of the truss platform system 31, so that personnel can safely enter and exit the truss platform.

Vertical suspension rod 1 is the main atress component of overhauing the platform among the vertical suspension system 30, and it mainly adopts channel-section steel and high strength bolt to constitute, and the vertical suspension rod 1 length of transition pier capping beam 20 both sides is inequality, and will guarantee that later stage staff possesses sufficient maintenance space. The distance between the vertical suspension rods 1 is preferably between 1.0 and 1.5 m. The distance between the high-strength bolts 12 of each vertical suspension rod is not more than 0.5m.

The major structure of truss platform mainly adopts angle steel, iron sheet, 16 reinforcing bars of phi, guardrail steel wire to constitute among truss platform system 31, mainly provides the maintenance place for the staff, temporarily places and overhauls small-size apparatus material. The net width of the truss platform is preferably controlled within 0.75m. The truss platform mainly comprises a main structure formed by four longitudinal angle steels and a plurality of transverse and vertical angle steels, stabilizing support angle steels are added among nodes, and the main structure and the vertical suspension rod 1 are integrally formed by welding or riveting. Every two horizontal angle steel intervals on upper strata are the same with vertical 1 intervals that hang the pole, place a plurality of phi 16 reinforcing bar poles between them, and the interval control is at 30cm, welds on the vertical angle steel of both sides, lays the iron sheet on it and supplies the walking to set up baseboard 6, small-size accessories such as placement tool drop, and both sides all set up truss platform guardrail 5, form truss platform jointly. The truss platform system 31 includes first and

second truss platforms

40 and 42, respectively, and a connecting portion 41, the first and

second truss platforms

40 and 42 being positioned on opposite sides of the transition pier cap 20, the first and

second truss platforms

40 and 42 being connected by the connecting portion 41. The two truss platforms are cantilevered on both sides of the vertical ladder system 32 and are interconnected, and workers can enter the connection section 41 through the vertical ladder and then enter the maintenance platforms on both sides of the transition pier capping beam 20. The elevations of the service platforms on both sides are different, and the different heights on both sides of the transition pier cap beam 20 are adapted by adjusting the heights of the first truss platform 40 and the second truss platform 42.

The construction of the overhaul platform provided by the embodiment comprises the following steps:

firstly, calculating the length and the interval of the vertical suspension rods 1 according to the width of the transition pier capping beam 20 and the interval of the main beams, setting out the positions of the high-strength bolts 12 of the vertical suspension rods, and then anchoring the vertical suspension rods 1 at the corresponding positions.

And step two, manufacturing the truss platform. The truss platform is preferably assembled on the ground or work platform. Firstly, according to the length of a cover beam and the distance between vertical suspension rods 1, eight truss longitudinal rods 2, a plurality of truss short cross rods 3, a plurality of truss long cross rods 3', a plurality of truss outer side vertical rods 1', a plurality of truss inner support rods 4 and a plurality of pedals 14 are prepared, connection is carried out according to the structure of the truss platform shown in the figures 1 to 3, and welding or bolts can be adopted at the connection position according to actual conditions. After the truss platform main body structures on the two sides are assembled, the truss platform main body structures can be hoisted to the specified position to be connected with the vertical suspension rod 1, and the bolt connection is adopted at the node position according to the suggestion. And then constructing the attached guardrail cross rod 7, the iron sheet and the skirting board 6, and finishing the truss platform.

And step three, manufacturing the vertical ladder stand. The vertical ladder stand is square in section and 0.75m in side length. Preparing four vertical cat ladder montants 13, a plurality of vertical cat ladder footplates 8, a plurality of vertical cat ladder protection reinforcing bars 9, protection reinforcing bar 9 'is strengthened to a plurality of vertical cat ladders, according to the girder, the anticollision barrier 21 of bridge, transition mound roof beam 20 and truss platform's height and position, design the facade shape of vertical cat ladder, then assemble according to the design shape, as shown in fig. 1, ensure that vertical cat ladder footplate 8 is located the top of coupling part 41, make things convenient for the staff to get into coupling part 41 through vertical cat ladder. And then preparing an I-steel vertical ladder top anchoring system 10 and an angle steel vertical ladder side anchoring system 11, hoisting the vertical ladder to a designated position, temporarily fixing, and constructing a permanent anchoring system.

And step four, finishing the maintenance platform of the transition pier capping beam support.

The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.

Claims

1. The utility model provides a permanent maintenance platform of highway bridge transition mound bent cap support, includes vertical suspension system (30), truss platform system (31), vertical cat ladder system (32), its characterized in that: the vertical suspension system (30) is respectively fixedly connected with two sides of the transition pier capping beam (20); the truss platform systems (31) are respectively anchored on the vertical suspension systems (30) through bolts; the vertical ladder climbing system (32) is respectively anchored on the outer sides of an anti-collision guardrail (21) and a transition pier capping beam (20) of the bridge; the tail end of the vertical ladder climbing system (32) is positioned in the fence of the truss platform system (31).

2. The permanent access platform of highway bridge transition pier bent cap support of claim 1, characterized in that: the truss platform system (31) comprises a first truss platform (40), a second truss platform (42) and a connecting portion (41), wherein the first truss platform (40) and the second truss platform (42) are connected through the connecting portion (41).

3. The permanent maintenance platform of public road bridge roof beam support of claim 2, characterized in that: the first truss platform (40) and the second truss platform (42) are respectively located on two sides of the transition pier capping beam (20).

4. The permanent access platform of highway bridge transition pier bent cap support of claim 3, characterized in that: the first truss platform (40) and the second truss platform (42) are disposed at different heights.