CN105839544A - Hogging moment stretching-drawing trolley capable of working aloft in narrow space - Google Patents
Hogging moment stretching-drawing trolley capable of working aloft in narrow space Download PDFInfo
- Publication number
- CN105839544A CN105839544A CN201610304967.8A CN201610304967A CN105839544A CN 105839544 A CN105839544 A CN 105839544A CN 201610304967 A CN201610304967 A CN 201610304967A CN 105839544 A CN105839544 A CN 105839544A
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- China
- Prior art keywords
- hogging moment
- chassis
- rubber
- narrow space
- trolley
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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 hogging moment stretching-drawing trolley capable of working aloft in a narrow space. The hogging moment stretching-drawing trolley comprises a rubber-tired trolley (9) capable of being pushed along the bridge floor of a T-shaped beam bridge, an oil hydraulic pump (10) arranged on the rubber-tired trolley, a support (1) installed on a rubber-tired trolley frame, a fixed pulley (2) installed on the top of the support, a steel pipe (3) installed below the pulley and extending to the portion below the bridge floor, a rotating rod (4) inserted into the steel pipe, a chassis (5) installed at the bottom end of the rotating rod, and a hydraulic jack (6) arranged on the chassis and used for a hogging moment prestressed steel strand (13) to penetrate through. The two ends of a sliding steel rope (7) of the fixed pulley are connected to the top end of the rotating rod and a winch (8), the winch is installed on the support, and a hydraulic oil pipe (12) is connected between the oil hydraulic pump and the hydraulic jack. The hogging moment stretching-drawing trolley can work aloft in the narrow space, arranging and stretching-drawing are carried out on the hogging moment prestressed steel strand, the stretching-drawing quality of the hogging moment prestressed steel strand is ensured, and the trolley is safe and saves labor.
Description
Technical field
The invention belongs to laying and the tensioning equipment technical field of prestressing tendon in the construction of T-shaped beam bridge.
Background technology
The wide model of highway uses the T-shaped beam bridge of simple-supported thencontinuous as shown in Figure 1, the prestress steel of its cast-in-place continuous segment at present
Laying and the stretch-draw of bundle directly affect bridge construction quality and duration.For improving construction quality and shortening the construction period, at prestressing force
The hogging moment area of T beam A is additionally arranged tooth plate B, the stretching notch D of stretch-draw hogging moment prestressed strand C and is all arranged at the T beam wing
Listrium E lower edge.
The working procedure of hogging moment area is: install anchor plate and rebate former → installation hogging moment corrugated tube → pre-embedding of stretching notch
Anchor reinforcing bar → casting beams body concrete → form removal.After beam body lifting, installation hogging moment prestressed strand, hogging moment stretch-draw mud jacking,
Filling sealing off and covering anchorage mouth concrete.A series of working procedures, especially work high above the ground after beam body lifting, the stretch-draw mud jacking scope of operation is narrow and high
Sky, is difficult to the most fixing construction equipment, and the stretch-draw quality of hogging moment prestressed strand is existed the biggest hidden danger, and hogging moment stretch-draw is executed
Work becomes emphasis and the difficult point of T beam construction.
Summary of the invention
The invention aims to solve the construction difficult problem of prior art, it is provided that one can be carried out in narrow space work high above the ground
The laying of hogging moment prestressed strand and stretch-draw, it is ensured that the stretch-draw quality of hogging moment prestressed strand and the hogging moment of safety labor-saving are opened
Draw chassis.
The purpose of the present invention is achieved through the following technical solutions:
Can be at the hogging moment stretch-draw chassis of narrow space work high above the ground, including the rubber-tired cart that can promote along T-shaped beam bridge bridge floor, placement
Oil pressure pump, the support being installed on rubber-tired cart vehicle frame on rubber-tired cart, it is installed on the fixed pulley of cradle top, is installed on pulley
The extending to the steel pipe below bridge floor, the pivoted lever being inserted in steel pipe, be installed on the chassis of pivoted lever bottom, be positioned over of lower section
The hydraulic jack passed for hogging moment prestressed strand on chassis, the two ends of the slip steel cable of fixed pulley are connected to revolution
On the top of bar and capstan winch, capstan winch is installed on support, and being connected between oil pressure pump with hydraulic jack has hydraulic oil pipe.
The present invention is provided with regulation jacking in bottom surface, rubber-tired cart vehicle frame front end.Described pivoted lever is I-steel pivoted lever.
The present invention use can the rubber-tired cart that moves at prefabricated T-shaped beam bridge bridge floor of Manual-pushing, support, oil pressure pump are all placed in glue
On wheel vehicle carriage, whole device can move flexibly to construction point, and hydraulic jack used by construction and other materials also can be by
Rubber-tired cart is carried, convenient and laborsaving.During construction, being arranged on chassis by hydraulic jack, chassis can be with the rotation of pivoted lever
Carry out 360 degree of rotations, become a rotating disk so that hydraulic jack can turn to any required angle, workmen
Can stand in and successfully prestressed strand be penetrated hydraulic jack on the platform temporarily ridden upon between two parallel T-shaped beams, interspersed steel
Restraint convenient and swift.Bridge floor pull slip steel cable to make pivoted lever lift along pulley by rotation capstan winch, it is achieved to prestressed strand
Stretch-draw.Control stretch-draw prestressing force steel bundle to operate at bridge floor so that stretch-draw quality, tensioning speed and stretch-draw safety all obtain can
By ensureing.
Accompanying drawing explanation
Fig. 1 is that continuous T type beam bridge is laid and the schematic diagram of prestressed strand；
Fig. 2 is the structural representation of the present invention；
Fig. 3 is present invention schematic diagram when construction site.
Detailed description of the invention
As shown in Figure 2 can be at the hogging moment stretch-draw chassis of narrow space work high above the ground, including promoting along T-shaped beam bridge 14 bridge floor
Rubber-tired cart 9, the oil pressure pump 10 being positioned on rubber-tired cart, the support 1 being installed on rubber-tired cart vehicle frame, be installed on cradle top
Fixed pulley 2, be installed on the I-steel pivoted lever 4 extending to the steel pipe 3 below bridge floor, being inserted in steel pipe below pulley,
It is installed on the chassis 5 of pivoted lever bottom, is positioned on chassis the hydraulic jack 6 passed for hogging moment prestressed strand 13,
The two ends of the slip steel cable 7 of fixed pulley are connected on top and the capstan winch 8 of pivoted lever 4, and capstan winch 8 is installed on support 1,
It is connected between oil pressure pump 10 with hydraulic jack 6 and has hydraulic oil pipe 12.Regulation top it is provided with in bottom surface, rubber-tired cart vehicle frame front end
Torr 11, by rotating the height of jacking regulation vehicle frame, thus regulates the height of support.
When using the present invention, it is the most mobile at T-shaped beam bridge bridge floor that workmen can push whole stretch-draw chassis, is twisted by rotation
Dish lifting, revolving bar.Make to be positioned on chassis and hydraulic jack is freely rotatable by rotating back to bull stick.As it is shown on figure 3,
When carrying out the stretch-draw operation of hogging moment prestressed strand, can set up the longest along road surface between the Horse hoof of two parallel T-shaped beam bridges 14
The temporary platform 15 of about 60cm, platform can hang between the Horse hoof that plank is placed in two parallel T-shaped beam bridges with the rope made of hemp.Workmen is
Good seat belt, by hanging in the temporary platform 15 climbing to set up under ladder, by the capstan winch on stretch-draw chassis on bridge floor and fixed pulley
Making pivoted lever the most vertically movable, manual rotation's pivoted lever and chassis make hydraulic jack rotate, and make hydraulic jack
Prestressing tendon in alignment tooth plate, pierces into hydraulic jack prestressing tendon.Start oil pressure pump, by hydraulic oil pipe 12 to liquid
Pressure type jack pressurizes, and starts stretch-draw prestressing force steel bundle.Stretch-draw operation is operated by the workmen on bridge floor, starts oil pressure pump i.e.
Can, no longer carried out stretch-draw operation by the personnel being between T beam narrow under bridge floor, improve operational security, stretch-draw quality and
Tensioning speed is also greatly improved.For the outside stretch-draw operation of side bar, workmen can be gone down below T-shaped beam bridge by Hanging Basket
Prestressed strand at tooth plate penetrates hydraulic jack, is then back to bridge floor by controlling oil pressure pump and controls stretch-draw.
The present invention is hogging moment stretching construction be applicable to simple-supported thencontinuous prestressed T-shaped girder bridge.
Claims (3)
1. can be at the hogging moment stretch-draw chassis of narrow space work high above the ground, it is characterised in that including can be along T-shaped
Beam bridge bridge floor promote rubber-tired cart (9), the oil pressure pump (10) being positioned on rubber-tired cart, be installed on rubber-tired cart car
Support (1) on frame, it is installed on the fixed pulley (2) of cradle top, is installed on and extends to bridge below pulley
Steel pipe (3) below face, the pivoted lever (4) being inserted in steel pipe, the chassis (5) being installed on pivoted lever bottom,
It is positioned on chassis the hydraulic jack (6) passed for hogging moment prestressed strand (13), fixed pulley
The two ends of slip steel cable (7) are connected on top and the capstan winch (8) of pivoted lever (4), capstan winch (8)
Being installed on support (1), being connected between oil pressure pump (10) with hydraulic jack (6) has hydraulic oil pipe
(12)。
The most according to claim 1 can be at the hogging moment stretch-draw chassis of narrow space work high above the ground, it is special
Levy and be, be provided with regulation jacking (11) in bottom surface, rubber-tired cart vehicle frame front end.
The most according to claim 1 and 2 can at the hogging moment stretch-draw chassis of narrow space work high above the ground,
It is characterized in that, described pivoted lever (4) is I-steel pivoted lever.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610304967.8A CN105839544A (en) | 2016-05-10 | 2016-05-10 | Hogging moment stretching-drawing trolley capable of working aloft in narrow space |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610304967.8A CN105839544A (en) | 2016-05-10 | 2016-05-10 | Hogging moment stretching-drawing trolley capable of working aloft in narrow space |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105839544A true CN105839544A (en) | 2016-08-10 |
Family
ID=56591626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610304967.8A Pending CN105839544A (en) | 2016-05-10 | 2016-05-10 | Hogging moment stretching-drawing trolley capable of working aloft in narrow space |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105839544A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108239935A (en) * | 2017-12-11 | 2018-07-03 | 山西路桥建设集团有限公司 | A kind of device suitable for Precast T-Beam hogging moment tensioning |
| CN108252219A (en) * | 2017-12-29 | 2018-07-06 | 中铁大桥局集团第八工程有限公司 | Bridge hogging moment tensioning vehicle |
| CN110526144A (en) * | 2018-05-24 | 2019-12-03 | 河北高达预应力科技有限公司 | A kind of test formula stretch-draw jack fixed rack |
| CN112942119A (en) * | 2021-02-02 | 2021-06-11 | 中铁二十二局集团第一工程有限公司 | Full-automatic hogging moment tensioning trolley |
| CN113585091A (en) * | 2021-09-02 | 2021-11-02 | 中铁北京工程局集团第二工程有限公司 | Construction method of super-long prestressed steel beam |
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| CN101942804A (en) * | 2010-09-07 | 2011-01-12 | 李雨恒 | Bridge surface construction vehicle for high-speed railway |
| CN201826262U (en) * | 2010-10-26 | 2011-05-11 | 中铁十三局集团有限公司 | Prestress tensioning trolley |
| CN201873949U (en) * | 2010-11-11 | 2011-06-22 | 中铁十三局集团电务工程有限公司 | Bride prestress stretch-draw trolley |
| JP5279347B2 (en) * | 2008-06-03 | 2013-09-04 | 鹿島建設株式会社 | Hydraulic control system for mobile work vehicles for cantilever installation |
| CN204139064U (en) * | 2014-03-17 | 2015-02-04 | 中交四公局第三工程有限公司 | Bridge floor hogging moment whole bundle intelligent tensioning car |
| 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 |
| CN205636504U (en) * | 2016-05-10 | 2016-10-12 | 云南建工集团有限公司 | Can be at narrow space high altitude construction's hogging moment stretch -draw platform truck |
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2016
- 2016-05-10 CN CN201610304967.8A patent/CN105839544A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5279347B2 (en) * | 2008-06-03 | 2013-09-04 | 鹿島建設株式会社 | Hydraulic control system for mobile work vehicles for cantilever installation |
| CN101942804A (en) * | 2010-09-07 | 2011-01-12 | 李雨恒 | Bridge surface construction vehicle for high-speed railway |
| CN201826262U (en) * | 2010-10-26 | 2011-05-11 | 中铁十三局集团有限公司 | Prestress tensioning trolley |
| CN201873949U (en) * | 2010-11-11 | 2011-06-22 | 中铁十三局集团电务工程有限公司 | Bride prestress stretch-draw trolley |
| CN204139064U (en) * | 2014-03-17 | 2015-02-04 | 中交四公局第三工程有限公司 | Bridge floor hogging moment whole bundle intelligent tensioning car |
| 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 |
| CN205636504U (en) * | 2016-05-10 | 2016-10-12 | 云南建工集团有限公司 | Can be at narrow space high altitude construction's hogging moment stretch -draw platform truck |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108239935A (en) * | 2017-12-11 | 2018-07-03 | 山西路桥建设集团有限公司 | A kind of device suitable for Precast T-Beam hogging moment tensioning |
| CN108252219A (en) * | 2017-12-29 | 2018-07-06 | 中铁大桥局集团第八工程有限公司 | Bridge hogging moment tensioning vehicle |
| CN110526144A (en) * | 2018-05-24 | 2019-12-03 | 河北高达预应力科技有限公司 | A kind of test formula stretch-draw jack fixed rack |
| CN112942119A (en) * | 2021-02-02 | 2021-06-11 | 中铁二十二局集团第一工程有限公司 | Full-automatic hogging moment tensioning trolley |
| CN113585091A (en) * | 2021-09-02 | 2021-11-02 | 中铁北京工程局集团第二工程有限公司 | Construction method of super-long prestressed steel beam |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20170122 Address after: 650000 Yunnan Province Economic Development Zone of Kunming city forest road No. 188 Applicant after: Yunnan Construction Investment Holding Group Co., Ltd. Address before: 650051 Yunnan Province Economic Development Zone of Kunming city forest road No. 188 Yunnan Construction Engineering Group Co. Ltd. Applicant before: Yunnan Construction Engineering Group Co., Ltd. |
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| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160810 |