CN114108483A - Movable hanging operation platform for welding steel box girder bridge guardrail - Google Patents
Movable hanging operation platform for welding steel box girder bridge guardrail Download PDFInfo
- Publication number
- CN114108483A CN114108483A CN202111499622.XA CN202111499622A CN114108483A CN 114108483 A CN114108483 A CN 114108483A CN 202111499622 A CN202111499622 A CN 202111499622A CN 114108483 A CN114108483 A CN 114108483A
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- steel
- operation platform
- welding
- guardrail
- box girder
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 173
- 239000010959 steel Substances 0.000 title claims abstract description 173
- 238000003466 welding Methods 0.000 title claims abstract description 70
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- 230000003014 reinforcing effect Effects 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000010276 construction Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 241000282326 Felis catus Species 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention provides a movable hanging operation platform for welding steel box girder bridge guardrails, wherein steel guardrails to be welded are placed on a steel box girder or a girder body of a bridge, and the movable hanging operation platform comprises a hanging operation platform and a counterweight trolley, and the counterweight trolley is positioned on the surface of the steel box girder or the girder body of the bridge; the hanging operation platform comprises a steel bracket and rollers, the steel bracket is designed to be clamped on the steel guardrail in a reversed concave groove shape, and the rollers in the concave groove roll on the steel guardrail; the counterweight trolley is connected with the hanging operation platform through a steel pull rod. The invention can meet the requirement of moving to any section on a longer steel guardrail for welding the steel guardrail. The hanging operation platform is simple in structure and low in manufacturing cost, can ensure the safety of constructors operating inside and is convenient to operate. The welding device is very suitable for welding the steel guardrails on the two sides of the steel box girder structure bridge.
Description
Technical Field
The invention relates to an operation platform, in particular to a movable hanging operation platform for welding steel box girder bridge guardrails.
Background
In the construction process of a steel box girder structure bridge, guardrails on two sides of a road are usually installed on a bridge deck of the beam box girder, the guardrails are generally steel guardrails and are installed on the steel box girder through welding, because the steel guardrails are located at the position of the adjacent edge of the steel box girder, welding seams between the outer sides of the steel guardrails and the steel box girder are welded to be high-altitude adjacent edge operation, an outer-side high-altitude operation platform needs to be provided, the conventional method is that a scaffold is erected from the ground to the position of the steel guardrail to serve as an operation platform or special lifting operation platform equipment is adopted at the lower part of the bridge, the cost of the method is high, the method for erecting the scaffold as the operation platform is long in time consumption, great influence is caused to the construction period, and the safety and reliability of the lifting operation platform equipment are not enough. In order to accelerate the construction progress, save the construction cost and ensure the safety of high-altitude operation construction, the invention provides a movable hanging operation platform for welding a steel box girder bridge guardrail and a welding method.
Disclosure of Invention
The invention provides a movable hanging operation platform for welding a steel box girder bridge guardrail, which solves the problem that the movable hanging operation platform can smoothly move on a bridge steel guardrail to be welded and meets the requirement of moving to any section on a longer steel guardrail for welding operation, and the technical scheme is as follows:
a movable hanging operation platform for welding steel box girder bridge guardrails is applied to a steel box girder or a bridge, steel guardrails needing to be welded are placed on a girder body of the steel box girder or the bridge, and the movable hanging operation platform comprises a hanging operation platform and a counterweight trolley, wherein the counterweight trolley is positioned on the surface of the girder body of the steel box girder or the bridge; the hanging operation platform comprises a steel bracket and rollers, the steel bracket is designed to be clamped on the steel guardrail in a reversed concave groove shape, and the rollers in the concave groove roll on the steel guardrail; the counterweight trolley is connected with the hanging operation platform through the steel pull rod, so that the force of the hanging operation platform on the steel guardrail is balanced on the inner side and the outer side.
The steel support is including being located the outrigger in the steel guardrail outside to and be located the interior curved frame of steel guardrail inboard and top, the one end and the outrigger fixed connection of interior curved frame.
The upper part of the steel bracket is provided with a first inclined rod for reinforcing and connecting the inner bent frame and the outer frame; the lower part of the steel support is provided with a second inclined rod, the tail end of the outer frame is provided with a standing platform, and the outer frame and the standing platform are reinforced through the second inclined rod.
And a safety fence and a welding rod box are arranged on the outer side of the steel bracket.
The outer frame of the steel support comprises two vertical rods, and a useful steel bar is welded between the two vertical rods to form the ladder stand.
The counterweight trolley carries a water tank counterweight block formed by filling water into a plurality of water tanks.
And a channel steel track is paved at the bottom of the counterweight trolley and is positioned on the surface of the steel box girder or the girder body of the bridge.
And an adjustable tensioning device is arranged on the steel pull rod.
The two ends of the steel pull rod are provided with hooks, the hooks are connected with hanging lugs through hanging rings, and the hanging lugs are fixed on a hanging operation platform or a counterweight trolley.
The gyro wheel is arranged in the left and right sides and the upside of steel guardrail.
Operation platform is hung with movable to steel box girder bridge guardrail welding can be guaranteeing constructor safety of operation inside, low in manufacturing cost, convenient operation.
Drawings
FIG. 1 is a schematic structural diagram of a movable hanging operation platform for welding a steel box girder bridge guardrail;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
fig. 3 is a sectional view B-B of fig. 1.
Detailed Description
As shown in fig. 1 to 3, movable hanging operation platform for welding steel box girder bridge guardrail comprises a hanging operation platform 1 and a counterweight trolley 2, wherein the steel guardrail 21 is connected with a bridge (steel box girder) girder body 23 through welding, the hanging operation platform 1 needs to be hung on the steel guardrail 21 before the welding of the steel guardrail 21, the counterweight trolley 2 is arranged on the surface of the bridge (steel box girder) girder body 23, the counterweight trolley 2 is connected with the hanging operation platform 1 through a steel pull rod 16 to play a counterweight role, so that the force of the hanging operation platform 1 acting on the steel guardrail 21 is balanced on the inner side and the outer side, and the situation that the steel guardrail 21 is toppled over due to the fact that the hanging operation platform 1 generates too large outer side tension is avoided. The counterweight trolley 2 can be pushed on a bridge (steel box girder) body 23, and when the hanging operation platform 1 moves on the steel guardrail 21, the counterweight trolley 2 can synchronously move to a corresponding position.
The steel pull rod 16 connecting the counterweight trolley 2 and the hanging operation platform 1 is provided with an adjustable tensioning device 25, and the counterweight trolley 2 and the hanging operation platform 1 are tensioned after being connected through the steel pull rod 16, so that the counterweight trolley 2 and the hanging operation platform 1 reach the balance of force on the steel guardrail 21.
The hanging operation platform 1 is an operation platform and an operation platform for welding the welding seam on the outer side of the steel guardrail 21. It includes steel bracket 3 and gyro wheel 5, steel bracket 3 is including the outrigger that is located the steel guardrail 21 outside to and be located the interior curved frame of steel guardrail 21 inboard and top, the one end and the outrigger fixed connection of interior curved frame to the design is "concave" groove shape card for the back-off on steel guardrail 21, is provided with gyro wheel 5 at steel bracket 3, thereby steel bracket 3 rolls on steel guardrail 21 through "concave" inslot gyro wheel 5 and realizes hanging operation platform 1 and remove on steel guardrail 21, makes to hang operation platform 1 and satisfies the demand that moves any section and carry out welding operation on longer steel guardrail.
The inner bent frame and the outer frame are provided with first oblique rods 4 with reinforcing effects, the tail end of the outer frame is provided with a standing platform, and the standing platform and the outer frame are further provided with second oblique rods 8 with reinforcing effects. Like this, steel bracket 3 upper portion is equipped with down tube 4, and the lower part is equipped with down tube 8, and down tube 4 and down tube 8 play the firm effect of reinforcing to steel bracket 3 structure.
The standing platform is provided with a safety fence 9 upwards along the outer frame, so that the hanging operation platform 1 becomes a closed and safe high-altitude operation space. Install cat ladder 10 in hanging operation platform 1, cat ladder 10 is that the welding of multi-purpose root reinforcing bar is on two montants of steel support 3's outrigger place, and cat ladder 10 is the tie rod of two montants in the steel support 3 outside also, makes and hangs operation platform steel support 3 outside two montants and form whole firm structure. The hanging operation platform 1 is provided with the welding rod box 6 at the welding operation part, and the welding rod box 6 is fixed on the outer frame, so that welding operators can conveniently take and place welding rods.
The counterweight trolley 2 carries a plurality of water tank counterweight blocks 16 formed by filling water in the water tanks. The bottom of the counterweight trolley 2 is paved with a channel steel rail 17, and the counterweight trolley 2 smoothly travels in a straight line under the limitation of the channel steel rail 17 and cannot collide with an anchor bolt 22 on the surface of a beam body 23 of a bridge (steel box girder) to be blocked.
The two ends of the steel pull rod 16 are provided with hooks 15, the hooks 15 are connected with hanging lugs 13 through hanging rings 14, and the hanging lugs 13 are fixed on the hanging operation platform 1 or the counterweight trolley 2.
The welding operation personnel enter the hanging operation platform 1 in a mode that the welding operation personnel go up to the top of the steel bracket 3 through the traffic ladder 18 and then go down to the inside of the operation platform along the ladder stand 10 outside the steel bracket to perform welding operation on the welding seam outside the steel guardrail 21. When the traffic ladder is used, one end of the traffic ladder 18 is placed on a beam body 23 of a bridge (steel box girder), and the other end of the traffic ladder is lapped at an inner bent frame of the hanging operation platform 1.
The inside horizontal welding line 19 and the outside horizontal welding line 20 between the steel guardrail 21 and the bridge body 23 of the bridge (steel box girder) adopt an inside-outside synchronous welding method, so that the situations that the steel guardrail 21 deforms and displaces too much due to welding caused by welding a certain single-side welding line are avoided.
The manufacturing method of the invention is as follows:
s1, manufacturing the steel support 3 by adopting channel steel processing in a processing plant, and connecting the steel components of the steel support 3 by welding.
S2, mounting accessory parts on the manufactured and molded steel bracket 3, and sequentially mounting a ladder stand 10, rollers 5, a safety fence 9, a railing 10, a welding rod box 6, a closing plate 7 and a hanging lug 13. The ladder stand 10 and the safety fence 9 are formed by processing steel bars and welded on the steel bracket 3. The closing plate 7 is made of a steel plate and is welded at the bottom of the steel bracket 3. The hanging lug 13 is made of a steel plate and is welded on the steel bracket 3. The welding rod box 6 is made of an iron sheet and welded on the steel support 3, all welding seams are full-welded, full welding seams are required, and the welding rod box needs to be folded empirically after welding is completed.
And S3, hanging the safety protection net 11 around the assembled hanging operation platform 1 and at the bottom.
S4, processing and manufacturing the counterweight trolley 2 in a processing plant, wherein the counterweight trolley 2 is mainly constructed by a bottom plate, four side baffles and walking wheels, and hanging lugs 13 are arranged on the front side plate and the rear side plate for providing hanging points of the steel pull rod 16.
And S5, transporting the hanging operation platform 1 and the counterweight trolley 2 to the site from the processing plant.
S6, paving a channel steel rail 17 which meets the requirement of sufficient length for single walking on a walking route of the counterweight trolley 2 (steel box girder surface rivets 22 exist on the surface of a steel box girder body), then placing the counterweight trolley 2 on the channel steel rail 17 in place, then placing a plurality of water tanks in the counterweight trolley 2, and pouring water into the water tanks to form water tank counterweight blocks 16.
S7, 2 steel pull rods 16 are prepared, hooks 15 are welded at two ends of each steel pull rod 16, and an adjustable tensioning device 17 is arranged in the middle of each steel pull rod 16.
S8, 4 hanging rings 14 are prepared, and the hanging rings 14 are mounted on the hanging operation platform 1 and the hanging lugs 13 of the counterweight trolley 2.
S9, the steel guardrail 21 is installed and placed in position, and a plurality of points are selected for spot welding at the position to be welded with the joint of the steel box girder body 23, so that the steel guardrail 21 and the steel box girder body 23 are connected and fixed.
S10, hoisting the hanging operation platform 1 by a crane, buckling the groove part of the hanging operation platform 1 on the steel guardrail 21 to be welded, temporarily preventing the hook from loosening by the crane, pushing the balance weight cart 2 to the part corresponding to the hanging operation platform 1, respectively installing 1 steel pull rod 16 at the front and the rear of the balance weight cart 2, respectively hanging the hooks at the two ends of the steel pull rod 16 on the hanging lugs 13 of the hanging operation platform 1 and the balance weight cart 2, then adjusting the adjusting tension device 25 on the steel pull rod 16 to tension the steel pull rod 16, and finally loosening the hook from the hanging operation platform 1 by the crane.
And S11, hanging the traffic ladder 18 on the steel bracket 3 of the hanging operation platform 1 at the inner side of the steel guardrail to be used as a passage for the constructor to enter and exit the hanging operation platform 1.
And S12, organizing to carry out safety inspection and acceptance inspection on the hanging operation platform 1.
S13, enabling welding operators to enter the hanging operation platform 1 to weld the horizontal welding line on the outer side of the steel guardrail 21, enabling the welding operators on the inner side of the steel guardrail to synchronously weld the horizontal welding line on the inner side of the steel guardrail 21, and ensuring the installation accuracy of the steel guardrail 21 by welding the two sides in a balanced manner.
S14, after the welding of the steel guardrail 21 of the unit is completed, the hanging operation platform 1 and the balance weight trolley 2 are pushed to the welding unit of the adjacent steel guardrail 21 to be in place, the adjusting tension device 25 on the steel pull rod 16 is adjusted to tension the steel pull rod 16, then the hanging operation platform 1 is organized to be checked and accepted safely, and after the steel pull rod is accepted, a constructor enters the hanging operation platform 1 to perform another cycle welding operation.
The movable hanging operation platform for welding the steel box girder bridge guardrail can meet the requirement of moving to any section on a longer steel guardrail to perform welding operation on the steel guardrail. The hanging operation platform is simple in structure and low in manufacturing cost, can ensure the safety of constructors operating inside and is convenient to operate. The welding device is very suitable for welding the steel guardrails on the two sides of the steel box girder structure bridge.
Claims (10)
1. The utility model provides an operation platform is hung with movable to welding of steel box girder bridge guardrail, uses at steel box girder or bridge, has placed needs welded steel guardrail, its characterized in that on the roof beam body of steel box girder or bridge: the device comprises a hanging operation platform and a counterweight trolley, wherein the counterweight trolley is positioned on the surface of a steel box girder or a girder body of a bridge; the hanging operation platform comprises a steel bracket and rollers, the steel bracket is designed to be clamped on the steel guardrail in a reversed concave groove shape, and the rollers in the concave groove roll on the steel guardrail; the counterweight trolley is connected with the hanging operation platform through the steel pull rod, so that the force of the hanging operation platform on the steel guardrail is balanced on the inner side and the outer side.
2. The movable hanging operation platform for welding the steel box girder bridge guardrail of claim 1 is characterized in that: the steel support is including being located the outrigger in the steel guardrail outside to and be located the interior curved frame of steel guardrail inboard and top, the one end and the outrigger fixed connection of interior curved frame.
3. The movable hanging operation platform for welding the steel box girder bridge guardrail of claim 2 is characterized in that: the upper part of the steel bracket is provided with a first inclined rod for reinforcing and connecting the inner bent frame and the outer frame; the lower part of the steel support is provided with a second inclined rod, the tail end of the outer frame is provided with a standing platform, and the outer frame and the standing platform are reinforced through the second inclined rod.
4. The movable hanging operation platform for welding the steel box girder bridge guardrail of claim 1 is characterized in that: and a safety fence and a welding rod box are arranged on the outer side of the steel bracket.
5. The movable hanging operation platform for welding the steel box girder bridge guardrail of claim 1 is characterized in that: the outer frame of the steel support comprises two vertical rods, and a useful steel bar is welded between the two vertical rods to form the ladder stand.
6. The movable hanging operation platform for welding the steel box girder bridge guardrail of claim 1 is characterized in that: the counterweight trolley carries a water tank counterweight block formed by filling water into a plurality of water tanks.
7. The movable hanging operation platform for welding the steel box girder bridge guardrail of claim 1 is characterized in that: and a channel steel track is paved at the bottom of the counterweight trolley and is positioned on the surface of the steel box girder or the girder body of the bridge.
8. The movable hanging operation platform for welding the steel box girder bridge guardrail of claim 1 is characterized in that: and an adjustable tensioning device is arranged on the steel pull rod.
9. The movable hanging operation platform for welding the steel box girder bridge guardrail of claim 1 is characterized in that: the two ends of the steel pull rod are provided with hooks, the hooks are connected with hanging lugs through hanging rings, and the hanging lugs are fixed on a hanging operation platform or a counterweight trolley.
10. The movable hanging operation platform for welding the steel box girder bridge guardrail of claim 1 is characterized in that: the gyro wheel is arranged in the left and right sides and the upside of steel guardrail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111499622.XA CN114108483A (en) | 2021-12-09 | 2021-12-09 | Movable hanging operation platform for welding steel box girder bridge guardrail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111499622.XA CN114108483A (en) | 2021-12-09 | 2021-12-09 | Movable hanging operation platform for welding steel box girder bridge guardrail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114108483A true CN114108483A (en) | 2022-03-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111499622.XA Pending CN114108483A (en) | 2021-12-09 | 2021-12-09 | Movable hanging operation platform for welding steel box girder bridge guardrail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114108483A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200298436Y1 (en) * | 2002-09-05 | 2002-12-16 | 엘지건설 주식회사 | Moveable Vehicle for Disposition of form in Cantilever of Bridge Deck |
| CN201411635Y (en) * | 2009-06-17 | 2010-02-24 | 广东省第二建筑工程公司 | Construction trolley of safety barrier template |
| CN205223849U (en) * | 2015-10-13 | 2016-05-11 | 中国葛洲坝集团第六工程有限公司 | Bridge anticollision barrier template is lifted by crane and concrete defect patching device |
| CN110067201A (en) * | 2019-03-15 | 2019-07-30 | 上海建工七建集团有限公司 | A kind of movable type tensioning platform and its application method |
| CN209412699U (en) * | 2019-01-08 | 2019-09-20 | 湖北旺科模板有限公司 | A kind of assembly type walking underslung trolley operation platform |
| CN210013134U (en) * | 2019-05-31 | 2020-02-04 | 河南省公路工程局集团有限公司 | Attached type portable mounting and dismounting device for bridge anti-collision guardrail template |
| CN211228104U (en) * | 2019-10-21 | 2020-08-11 | 夏盛 | Portable guardrail construction operation platform device |
-
2021
- 2021-12-09 CN CN202111499622.XA patent/CN114108483A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200298436Y1 (en) * | 2002-09-05 | 2002-12-16 | 엘지건설 주식회사 | Moveable Vehicle for Disposition of form in Cantilever of Bridge Deck |
| CN201411635Y (en) * | 2009-06-17 | 2010-02-24 | 广东省第二建筑工程公司 | Construction trolley of safety barrier template |
| CN205223849U (en) * | 2015-10-13 | 2016-05-11 | 中国葛洲坝集团第六工程有限公司 | Bridge anticollision barrier template is lifted by crane and concrete defect patching device |
| CN209412699U (en) * | 2019-01-08 | 2019-09-20 | 湖北旺科模板有限公司 | A kind of assembly type walking underslung trolley operation platform |
| CN110067201A (en) * | 2019-03-15 | 2019-07-30 | 上海建工七建集团有限公司 | A kind of movable type tensioning platform and its application method |
| CN210013134U (en) * | 2019-05-31 | 2020-02-04 | 河南省公路工程局集团有限公司 | Attached type portable mounting and dismounting device for bridge anti-collision guardrail template |
| CN211228104U (en) * | 2019-10-21 | 2020-08-11 | 夏盛 | Portable guardrail construction operation platform device |
Non-Patent Citations (1)
| Title |
|---|
| 陈哲;张伟;刘俭;林勃;曹永豪;: "钢箱梁挑臂及钢护栏安装两用型移动操作平台设计与应用", 施工技术, no. 2, 30 December 2017 (2017-12-30), pages 677 - 680 * |
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