CN110886238A - Post-tensioning simply supported box girder prestress tensioning trolley - Google Patents
Post-tensioning simply supported box girder prestress tensioning trolley Download PDFInfo
- Publication number
- CN110886238A CN110886238A CN201911366479.XA CN201911366479A CN110886238A CN 110886238 A CN110886238 A CN 110886238A CN 201911366479 A CN201911366479 A CN 201911366479A CN 110886238 A CN110886238 A CN 110886238A
- Authority
- CN
- China
- Prior art keywords
- base
- sliding rail
- fixed
- tensioning
- frame
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000001681 protective effect Effects 0.000 claims abstract description 22
- 238000000034 method Methods 0.000 claims abstract description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 238000010276 construction Methods 0.000 abstract description 7
- 208000027418 Wounds and injury Diseases 0.000 abstract 1
- 230000006378 damage Effects 0.000 abstract 1
- 208000014674 injury Diseases 0.000 abstract 1
- 230000002265 prevention Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 1
- 239000011513 prestressed concrete Substances 0.000 description 1
Images
Classifications
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/12—Mounting of reinforcing inserts; Prestressing
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
A post-tensioning simple-supported box girder prestress tensioning trolley relates to the field of trolleys. The jack is mainly designed for solving the problems that the existing jack for tensioning is not easy to move and easily causes injury to people and objects in the tensioning construction process. The walking wheel device comprises a base, wherein a bottom plate is fixed on the base, the walking wheel is installed on the base through a shaft, and a connecting arm is connected to the left end of the base through a shaft. The four support rods are respectively in threaded connection with nuts of the base; the frame is fixed on the base, and the top of the frame is fixed with a front transverse sliding rail and a rear transverse sliding rail; pulleys at the bottoms of the left longitudinal slide rail and the right longitudinal slide rail are matched with the two transverse slide rails; the front longitudinal slide rail and the rear longitudinal slide rail are both provided with a pulley, the pulley is provided with a hanging ring, the electric hoist is hung in the hanging ring, and the lower end of the electric hoist chain is provided with a jack; the rear side surface of the frame is provided with a protective net. The advantages are convenient movement and effective prevention of casualty accidents.
Description
The technical field is as follows:
the invention relates to the field of trolleys, in particular to a post-tensioning simple-supported box girder prestress tensioning trolley.
Background art:
in the post-tensioning prestressed concrete simply-supported box girder construction process, the prestressed construction is a key process. The box girder which reaches the requirements of strength, age and elastic modulus after pouring needs to be subjected to tensioning construction, so that the jack is required to be lifted, and the tensioning position needs to be changed continuously in the tensioning process, so that the position of the jack needs to be changed in time. The existing jack for tensioning is very heavy and is not easy to move. The accidents of hurting people and objects can be caused by the conditions of sliding, breaking, flying out of clamping pieces and the like in the tensioning construction process.
The invention content is as follows:
the invention aims to solve the technical problem of providing a post-tensioning method simple-supported box girder prestress tensioning trolley which is convenient to move and can not generate the conditions of wire sliding, wire breaking, clip flying and the like in the tensioning process.
The above object is achieved by: the walking wheel comprises a base, a bottom plate is fixed on the base, the walking wheel is installed on the base through a shaft, the right ends of two connecting arms are connected with two corners of the left end of the base through the shaft, the left ends of the two connecting arms are provided with holes, and the walking wheel is connected with an upper tractor through the connecting arms, so that the walking wheel can be very conveniently transferred.
Nuts are fixed at four corners of the base, and four support rods made of finish-rolled deformed steel bars are respectively in threaded connection with the nuts at the four corners of the base;
the frame is fixed on the base, and the top of the frame is fixed with a front transverse sliding rail and a rear transverse sliding rail;
the left longitudinal slide rail and the right longitudinal slide rail are arranged above the two transverse slide rails, pulleys are arranged at the positions, corresponding to the front transverse slide rail and the rear transverse slide rail, of the bottoms of the left longitudinal slide rail and the right longitudinal slide rail, and the pulleys at the bottoms of the left longitudinal slide rail and the right longitudinal slide rail are installed with the two transverse slide rails in a matched mode; the left longitudinal slide rail and the right longitudinal slide rail can move left and right on the two transverse slide rails;
pulleys are mounted on the front longitudinal slide rail and the rear longitudinal slide rail, each pulley is fixedly provided with a hanging ring, a hook of the electric hoist is hung in the hanging ring, and a jack is hung at the lower end of a chain of the electric hoist; the jack can move back and forth through the pulley;
a protective net is fixed at the left end of the rear side of the frame, a protective net is also fixed at the right end of the rear side of the frame, the lengths and the heights of the protective nets at the two positions are the same, and the lengths of the two protective nets are both one fourth of the length of the frame; the lower half part of the rear side of the frame between the two protective nets is fixed with the protective net; the protective net is composed of a steel wire mesh, a rubber pad and a steel plate which are fixed together.
The middle part of the frame is provided with a pedal.
The invention has the advantages that: when the device is used for tensioning the box girder, the box girder can be moved freely in a girder yard construction site by means of a tractor, and the electric hoist can be used for connecting the upper jack to realize free movement of the jack. Convenient and fast, labour saving and time saving has saved engineering cost greatly for the construction progress, and the protection network can effectually prevent the casualties accident that leads to such as smooth silk, disconnected silk, clamping piece departure among the tensioning process, effectively guarantees the security quality among the box girder tensioning work progress.
Description of the drawings:
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a schematic diagram of the right-hand side view of the present invention;
fig. 3 is a schematic top view of the base of the present invention.
The specific implementation mode is as follows:
the invention is further illustrated with reference to fig. 1-3;
it includes base 1, is fixed with bottom plate 2 on the base, and the walking wheel 3 is installed on the base through the axle, and the right-hand member of two linking arms 4 passes through two bights of hub connection at the base left end, and the left end of two linking arms is porose, connects the tractor through the linking arm, can be very convenient shift.
Nuts are fixed at four corners of the base, and four support rods 5 made of finish-rolled deformed steel bars are respectively in threaded connection with the nuts at the four corners of the base;
the frame 6 is fixed on the base, and the top of the frame is fixed with a front transverse slide rail 7 and a rear transverse slide rail 8;
the left longitudinal slide rail and the right longitudinal slide rail are both arranged above the two transverse slide rails, pulleys are arranged at the positions, corresponding to the front transverse slide rail and the rear transverse slide rail, of the bottoms of the left longitudinal slide rail and the right longitudinal slide rail, and the pulleys at the bottoms of the left longitudinal slide rail and the right longitudinal slide rail are installed with the two transverse slide rails in a matched mode; the left longitudinal slide rail and the right longitudinal slide rail can move left and right on the two transverse slide rails;
the front longitudinal slide rail and the rear longitudinal slide rail are both provided with pulleys 11, each pulley is fixed with a hanging ring, a hook of an electric hoist 12 is hung in the hanging ring, and the lower end of a chain of the electric hoist is hung with a jack 13; the jack can move back and forth through the pulley;
a protective net 14 is fixed at the left end of the rear side of the frame, a protective net is also fixed at the right end of the rear side of the frame, the lengths and the heights of the protective nets at the two positions are the same, and the lengths of the two protective nets are both one fourth of the length of the frame; the lower half part of the rear side of the frame between the two protective nets is fixed with the protective net; the protective net is composed of a steel wire mesh, a rubber pad and a steel plate which are fixed together.
The middle part of the frame is provided with a pedal 15.
Claims (3)
1. The utility model provides a post-tensioned method simple box girder prestressing force stretch-draw platform truck, includes base (1), is fixed with bottom plate (2) on the base, and walking wheel (3) are installed on the base through the axle, characterized by: the right ends of the two connecting arms (4) are connected with two corners of the left end of the base through shafts, and the left ends of the two connecting arms are provided with holes;
nuts are fixed at four corners of the base, and four support rods (5) made of finish-rolled deformed steel bars are respectively in threaded connection with the nuts at the four corners of the base;
the frame (6) is fixed on the base, and the top of the frame is fixed with a front transverse sliding rail (7) and a rear transverse sliding rail (8);
the sliding device is characterized by further comprising a left longitudinal sliding rail (9) and a right longitudinal sliding rail (10), wherein the left longitudinal sliding rail and the right longitudinal sliding rail are arranged above the two transverse sliding rails, pulleys are arranged at the positions, corresponding to the front transverse sliding rail and the rear transverse sliding rail, of the bottoms of the left longitudinal sliding rail and the right longitudinal sliding rail, and the pulleys at the bottoms of the left longitudinal sliding rail and the right longitudinal sliding rail are installed in a matched mode with the two transverse sliding rails; the left longitudinal slide rail and the right longitudinal slide rail can move left and right on the two transverse slide rails;
pulleys (11) are mounted on the front longitudinal slide rail and the rear longitudinal slide rail, each pulley is fixedly provided with a hanging ring, a hook of an electric hoist (12) is hung in the hanging ring, and a jack (13) is hung at the lower end of a chain of the electric hoist;
a protective net (14) is fixed at the left end of the rear side of the frame, a protective net is also fixed at the right end of the rear side of the frame, the lengths and the heights of the protective nets at the two positions are the same, and the lengths of the two protective nets are one fourth of the length of the frame; the lower half part of the rear side surface of the frame between the two protective nets is fixed with the protective net.
2. The post-tensioning simple supported box girder prestress tensioning trolley according to claim 1, which is characterized in that: the middle part of the frame is provided with a pedal (15).
3. The post-tensioning simple supported box girder prestress tensioning trolley according to claim 1, which is characterized in that: the protective net is composed of a steel wire mesh, a rubber pad and a steel plate which are fixed together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911366479.XA CN110886238A (en) | 2019-12-26 | 2019-12-26 | Post-tensioning simply supported box girder prestress tensioning trolley |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911366479.XA CN110886238A (en) | 2019-12-26 | 2019-12-26 | Post-tensioning simply supported box girder prestress tensioning trolley |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110886238A true CN110886238A (en) | 2020-03-17 |
Family
ID=69753240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911366479.XA Pending CN110886238A (en) | 2019-12-26 | 2019-12-26 | Post-tensioning simply supported box girder prestress tensioning trolley |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110886238A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201560587U (en) * | 2009-09-28 | 2010-08-25 | 中国建筑土木建设有限公司 | Box girder tensioning frame adopting post-tensioning method |
| CN204249072U (en) * | 2014-11-28 | 2015-04-08 | 中国建筑第六工程局有限公司 | For stretch-draw and the baffle plate integrating device of precast beam stretch-draw |
| CN204826678U (en) * | 2015-07-25 | 2015-12-02 | 中铁十九局集团第二工程有限公司 | Prestressing force is platform truck for steel strand stretching |
| CN208328712U (en) * | 2018-05-31 | 2019-01-04 | 宁夏路桥工程股份有限公司 | Composite multifunction tensioning platform |
| CN208543625U (en) * | 2018-07-04 | 2019-02-26 | 湖南联智智能科技有限公司 | A kind of precast beam production line tensioning trolley |
| CN211665589U (en) * | 2019-12-26 | 2020-10-13 | 中铁十九局集团第一工程有限公司 | Post-tensioning simply supported box girder prestress tensioning trolley |
-
2019
- 2019-12-26 CN CN201911366479.XA patent/CN110886238A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201560587U (en) * | 2009-09-28 | 2010-08-25 | 中国建筑土木建设有限公司 | Box girder tensioning frame adopting post-tensioning method |
| CN204249072U (en) * | 2014-11-28 | 2015-04-08 | 中国建筑第六工程局有限公司 | For stretch-draw and the baffle plate integrating device of precast beam stretch-draw |
| CN204826678U (en) * | 2015-07-25 | 2015-12-02 | 中铁十九局集团第二工程有限公司 | Prestressing force is platform truck for steel strand stretching |
| CN208328712U (en) * | 2018-05-31 | 2019-01-04 | 宁夏路桥工程股份有限公司 | Composite multifunction tensioning platform |
| CN208543625U (en) * | 2018-07-04 | 2019-02-26 | 湖南联智智能科技有限公司 | A kind of precast beam production line tensioning trolley |
| CN211665589U (en) * | 2019-12-26 | 2020-10-13 | 中铁十九局集团第一工程有限公司 | Post-tensioning simply supported box girder prestress tensioning trolley |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204249072U (en) | For stretch-draw and the baffle plate integrating device of precast beam stretch-draw | |
| CN213865240U (en) | Two stacker that stretch of double-column | |
| CN204780488U (en) | Portable hanger rail frame | |
| CN211665589U (en) | Post-tensioning simply supported box girder prestress tensioning trolley | |
| CN102191731A (en) | Gantry crane for auxiliary rail | |
| CN110886238A (en) | Post-tensioning simply supported box girder prestress tensioning trolley | |
| CN2235961Y (en) | Lifter | |
| CN211037745U (en) | Road engineering installation crane | |
| CN203199883U (en) | Scissor type lifting tool for steel rail lifting | |
| CN103663236A (en) | Heavy-type cover plate lifting device | |
| CN216471869U (en) | Bridge crane damping device | |
| CN211198537U (en) | Device for opening electric working well cover plate | |
| CN214087406U (en) | Fine quality rod hoisting equipment | |
| CN204778565U (en) | Well lid handling device | |
| CN213950340U (en) | Simple hoisting device for lifting lug-free ditch cover plate | |
| CN211444787U (en) | Span-adjustable beam lifting machine | |
| CN211519531U (en) | Curb handling tool | |
| CN109403167B (en) | Rail bending trolley for rail welding recovery engineering | |
| CN203593962U (en) | Movable transversally-tensioning device of T-shaped beam bridge floor system | |
| CN207062782U (en) | A kind of cast-in-situ box girder prestressed stretch-draw support | |
| CN207657838U (en) | A kind of carrying cart for heavy articles | |
| CN112252195A (en) | Assembly type continuous beam prestressed steel strand whole-bundle tensioning operation trolley and use method thereof | |
| CN209353221U (en) | A kind of packaged type cantilever job platform for the construction of side guardrail | |
| CN217556694U (en) | Prestressed reinforcement tensioning platform | |
| CN214187766U (en) | A precast beam tensioning equipment for construction |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |