CN114808705A - Prestress tension operation platform with protection facilities - Google Patents
Prestress tension operation platform with protection facilities Download PDFInfo
- Publication number
- CN114808705A CN114808705A CN202210184670.8A CN202210184670A CN114808705A CN 114808705 A CN114808705 A CN 114808705A CN 202210184670 A CN202210184670 A CN 202210184670A CN 114808705 A CN114808705 A CN 114808705A
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- Prior art keywords
- frame
- sliding chute
- horizontal frame
- upright
- rods
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 27
- 239000010959 steel Substances 0.000 claims abstract description 27
- 230000001681 protective effect Effects 0.000 claims abstract description 12
- 238000005096 rolling process Methods 0.000 claims abstract description 12
- 229920003023 plastic Polymers 0.000 claims abstract description 10
- 238000005192 partition Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 3
- 210000002435 tendon Anatomy 0.000 abstract description 3
- 239000003381 stabilizer Substances 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 208000010392 Bone Fractures Diseases 0.000 description 1
- 206010017076 Fracture Diseases 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 208000027790 Rib fracture Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000009417 prefabrication Methods 0.000 description 1
- 235000009566 rice Nutrition 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
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2/00—Bridges characterised by the cross-section of their bearing spanning structure
- E01D2/04—Bridges characterised by the cross-section of their bearing spanning structure of the box-girder type
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
- E01D2101/24—Concrete
- E01D2101/26—Concrete reinforced
- E01D2101/28—Concrete reinforced prestressed
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Platform Screen Doors And Railroad Systems (AREA)
Abstract
The utility model provides a prestressing force stretch-draw work platform with protective device, includes base, sliding unit, its characterized in that: the base includes horizontal frame, erects the frame, and horizontal frame is the rectangle steel framework, and the inside equidistance of length of rectangle steel framework is equipped with a plurality of horizontal poles, erects the frame and for having a horizontal pole and three pole settings to set up the frame that establishes, sliding element is including the spout, the horizontal rolling groove that have the stabilizer blade, wherein: the tensioning device is connected with the sliding unit. The prestress tension operation platform with the protection facility has the advantages that the phenomenon of prestressed tendon fracture occurs in a tension area, the safety of operators in an operation area can be protected, and meanwhile, the operators can open the transparent plastic plate to directly enter the tension operation area after the prestress is released.
Description
Technical Field
The invention relates to a bridge construction operation platform, in particular to a prestress tensioning operation platform with a protective facility.
Background
The prefabricated box girder in bridge construction is a mature construction process, is applied to highway bridge construction in a large area, belongs to dangerous operation due to prestress tensioning in the box girder prefabrication process, and particularly, steel strands can be broken in the tensioning process, so that operators are injured by the steel strands after the steel strands are popped off.
The known prestressed tensioning work platform structure therefore suffers from the inconveniences and problems described above.
Disclosure of Invention
The invention aims to provide a safe and reliable prestress tensioning operation platform with a protection facility.
In order to achieve the purpose, the technical solution of the invention is as follows:
the utility model provides a prestressing force stretch-draw work platform with protective device, includes base, sliding unit, its characterized in that:
the base comprises a horizontal frame and an upright frame, the horizontal frame is a rectangular steel frame, a plurality of cross rods are arranged inwards at equal intervals in the length direction of the rectangular steel frame, the upright frame is a frame formed by erecting one cross rod and three upright rods, the upright frame is matched with the horizontal frame, the length direction of the upright frame is vertically arranged in the middle of the horizontal frame, the three upright rods are respectively fixed with two end rods and a middle cross rod of the horizontal frame, splayed inclined support rods are arranged on two sides of the upright frame and the horizontal frame to enhance the strength of the base, and movable trundles are respectively arranged in the four corners and the middle of the four sides of the bottom of the horizontal frame; a bottom plate is laid on the upper surface of the horizontal frame; the section of the vertical frame is n-shaped and faces to a prestress tensioning operation protection area, and rectangular 1 st baffle and rectangular 2 nd baffle are respectively arranged on two sides of the horizontal frame to serve as protection plates; one half of the space between the three vertical rods is provided with a movable door, and the other half of the space is provided with a fixed clapboard, so that an operator can conveniently enter a prestress tensioning operation protection area from a tensioning operation area; a steel bottom plate at the bottom end of the fixed partition plate is provided with a tensioning device;
the sliding unit comprises a sliding chute with supporting legs and a transverse rolling groove, the sliding chute is provided with a 1 st sliding chute and a 2 nd sliding chute, the supporting legs of the 1 st sliding chute are placed on the prefabricated box girder, the 2 nd sliding chute is arranged at the top end of the vertical frame, the 1 st sliding chute and the 2 nd sliding chute are arranged in parallel and are movably connected through a transverse rolling shaft, a 1 st pulley is arranged in the 1 st sliding chute, and a 2 nd pulley is a U-shaped hanging ring fixed pulley and is arranged on the transverse rolling shaft;
wherein: the tensioning device is connected with the sliding unit.
The prestress tension operation platform with the protection facilities can be further realized by adopting the following technical measures.
In the prestressed tensioning operation platform with the protection facilities, the 1 st baffle and the 2 nd baffle are made of steel plates with the thickness of more than or equal to 2 mm.
In the prestressed tension working platform with a protection facility, the movable door is made of a transparent plastic plate.
In the prestressed tensioning operation platform with the protection facility, the fixing partition plate is made of a transparent plastic plate.
In the prestressed tensioning operation platform with the protection facility, the upright frame is made of rectangular steel and has a specification of 100 × 8 mm.
After the technical scheme is adopted, the prestress tensioning operation platform with the protective facility has the advantages that the prestress rib fracture phenomenon occurs in the tensioning area, the safety of operators in an operation area can be protected, meanwhile, the operators can open the transparent plastic plate to directly enter the tensioning operation area after the prestress is released, and the top sliding system of the tensioning operation platform can meet the tensioning of the prestress ribs at different positions of the section of the precast box girder.
Drawings
FIG. 1 is a schematic structural diagram of a tension work platform according to an embodiment of the present invention;
FIG. 2 is a schematic plan view of a work platform according to an embodiment of the present invention;
FIG. 3 is a schematic elevation view of a work platform according to an embodiment of the present invention;
fig. 4 is a schematic elevation view of another work platform according to an embodiment of the present invention.
In the figure: the tensioning device comprises a first sliding groove 1, a second sliding groove 2, a first pulley 3, a second pulley 2, a first baffle 4, a second baffle 5, a movable door 6, a fixed plate 7, a bottom plate 8, a diagonal brace 9, tensioning equipment 10, casters 11, a prefabricated box girder 12, a second sliding groove 13, a transverse rolling shaft 14, a longitudinal rolling wheel 15, a tensioning operation protection area 16 and a tensioning operation area 17.
Detailed Description
The present invention will be further described with reference to the following examples and the accompanying drawings.
Example 1
The invention discloses a prestress tension operation platform with a protective facility.
Referring to fig. 1-4, fig. 1 is a schematic structural diagram of a tensioning operation platform according to an embodiment of the present invention, fig. 2 is a schematic plan view of an operation platform according to an embodiment of the present invention, fig. 3 is a schematic elevation view of an operation platform according to an embodiment of the present invention, and fig. 4 is a schematic elevation view of another operation platform according to an embodiment of the present invention. As shown in the figure, the base comprises a horizontal frame and a vertical frame, the horizontal frame is a rectangular steel frame, a plurality of cross rods are arranged in the length direction of the rectangular steel frame at equal intervals, the vertical frame is a frame formed by erecting one cross rod and three vertical rods, the vertical frame is matched with the horizontal frame, the vertical frame is vertically arranged in the middle of the horizontal frame in the length direction, the three vertical rods are respectively fixed with two end rods and a middle cross rod of the horizontal frame, splayed diagonal support rods are arranged on two sides of the vertical frame and the horizontal frame to enhance the strength of the base, and movable trundles are respectively arranged in the four corners and the middle of the four sides of the bottom of the horizontal frame; a bottom plate is laid on the upper surface of the horizontal frame; the section of the vertical frame is n-shaped and faces to a prestress tensioning operation protection area, and rectangular 1 st baffle and rectangular 2 nd baffle are respectively arranged on two sides of the horizontal frame to serve as protection plates; one half of the space between the three vertical rods is provided with a movable door, and the other half of the space is provided with a fixed clapboard, so that an operator can conveniently enter a prestress tensioning operation protection area from a tensioning operation area; a steel bottom plate at the bottom end of the fixed partition plate is provided with a tensioning device;
the sliding unit comprises a sliding chute with supporting legs and a transverse rolling groove, the sliding chute is provided with a 1 st sliding chute and a 2 nd sliding chute, the supporting legs of the 1 st sliding chute are placed on the prefabricated box girder, the 2 nd sliding chute is arranged at the top end of the vertical frame, the 1 st sliding chute and the 2 nd sliding chute are arranged in parallel and are movably connected through a transverse rolling shaft, a 1 st pulley is arranged in the 1 st sliding chute, and a 2 nd pulley is a U-shaped hanging ring fixed pulley and is arranged on the transverse rolling shaft;
wherein: the tensioning device is connected with the sliding unit.
Example 2
The invention discloses a manufacturing method of a prestress tension operation platform with a protective facility, which comprises the following steps:
TABLE 1 statistical table of materials for working platform
| Serial number | Name(s) | Type, specification (Unit: mm) | Number of | Remarks for | |
| 1 | Rectangular steel | 100*100*8 | | Framework | |
| 2 | | 4000*3000*2 | 1 | ||
| 3 | | 2500*1500*2 | 2 pieces of | ||
| 4 | Transparent plastic plate | 2500*2000*2 | 2 pieces of | ||
| 5 | | Inner diameter 50 | 2 are provided with | | |
| 6 | Pulley 2 (U type rings fixed pulley) | Groove width 50 | 1 is provided with | Matched | |
| 7 | Round steel | Φ50 | 4 m | Groove width 50 | |
| 8 | Hinge (C) | 2 are provided with | |||
| 9 | Universal caster | With | 8 are provided with | Base caster |
The invention discloses a prestressed tension operation platform with a protective facility, which mainly comprises four parts:
1) the pulley has a locking function;
2) stretching the operation structure platform;
3) a sliding system component;
4) stretching equipment and the like;
the method for manufacturing the component comprises the following steps:
1. tensioning the operation structure platform:
1) cutting and cutting 100 × 8mm rectangular steel according to the actual length required on site;
2) respectively welding, fixing and molding the cut rectangular steel as shown in (figure 4);
3) respectively welding and bonding the steel plate and the transparent plastic plate 2 as shown in (figure 3);
4) and the transparent plastic plate 1 is connected with the operation platform framework by adopting a rotating hinge as shown in figure 5.
2. Manufacturing a sliding system component:
1) and cutting phi 50 round steel according to the actual length required by a site, respectively installing 1U-shaped hoisting ring fixed pulley and 2 bearing pulleys with the inner diameter of 50mm, and welding and fixing the U-shaped hoisting ring fixed pulleys and the bearing pulleys.
2) And cutting the 100X 8mm rectangular steel into pieces according to the actual length required on site, and arranging a sliding groove with the same width as the bearing pulley at the upper end.
The prestressed tension working platform with the protective facilities has the substantive characteristics and obvious technical progress, the prestressed tendon fracture phenomenon occurs in the tension area such as the prestressed tension working platform with the protective facilities, the safety of the working personnel in the operation area can be protected, and simultaneously, the working personnel can open the small door (transparent plastic plate) to directly enter the tension working area after the prestress is released.
The top sliding system of the tensioning operation platform can meet the tensioning of prestressed tendons at different positions of the section of the precast box girder.
The prestress tension operation platform with the protection facilities is manufactured according to the specification of 30-meter precast box girders of a gray river bridge of a G234 online leaf county and city reconstruction project, and good effects are achieved.
The above embodiments are provided only for illustrating the present invention and not for limiting the present invention, and those skilled in the art can make various changes or modifications without departing from the spirit and scope of the present invention. Accordingly, all equivalents are intended to fall within the scope of the invention, which is defined in the claims.
Claims (5)
1. The utility model provides a prestressing force stretch-draw work platform with protective device, includes base, sliding unit, its characterized in that:
the base comprises a horizontal frame and an upright frame, the horizontal frame is a rectangular steel frame, a plurality of cross rods are arranged inwards at equal intervals in the length direction of the rectangular steel frame, the upright frame is a frame formed by erecting one cross rod and three upright rods, the upright frame is matched with the horizontal frame, the length direction of the upright frame is vertically arranged in the middle of the horizontal frame, the three upright rods are respectively fixed with two end rods and a middle cross rod of the horizontal frame, splayed inclined support rods are arranged on two sides of the upright frame and the horizontal frame to enhance the strength of the base, and movable trundles are respectively arranged in the four corners and the middle of the four sides of the bottom of the horizontal frame; a bottom plate is laid on the upper surface of the horizontal frame; the section of the vertical frame is n-shaped and faces to a prestress tensioning operation protection area, and rectangular 1 st baffle and 2 nd baffle are respectively arranged on two sides of the horizontal frame to serve as protection plates; one half of the space between the three vertical rods is provided with a movable door, and the other half of the space is provided with a fixed clapboard, so that an operator can conveniently enter a prestress tensioning operation protection area from a tensioning operation area; a steel bottom plate at the bottom end of the fixed partition plate is provided with a tensioning device;
the sliding unit comprises a sliding chute with supporting legs and a transverse rolling groove, the sliding chute is provided with a 1 st sliding chute and a 2 nd sliding chute, the supporting legs of the 1 st sliding chute are placed on the prefabricated box girder, the 2 nd sliding chute is arranged at the top end of the vertical frame, the 1 st sliding chute and the 2 nd sliding chute are arranged in parallel and are movably connected through a transverse rolling shaft, a 1 st pulley is arranged in the 1 st sliding chute, and a 2 nd pulley is a U-shaped hanging ring fixed pulley and is arranged on the transverse rolling shaft;
wherein: the tensioning device is connected with the sliding unit.
2. The prestressed tensioning work platform with a protective facility as claimed in claim 1, wherein the 1 st baffle and the 2 nd baffle are made of steel plates with thickness of 2mm or more.
3. The prestressed tension working platform with protection facilities as claimed in claim 1, wherein the movable door is made of transparent plastic plate.
4. The prestressed tension working platform with protection facilities as claimed in claim 1, wherein the material of said fixed partition is transparent plastic plate.
5. The pre-stressed tension working platform with protective facilities of claim 1, wherein the material of the vertical frame is rectangular steel with a specification of 100 x 8 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210184670.8A CN114808705A (en) | 2022-02-28 | 2022-02-28 | Prestress tension operation platform with protection facilities |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210184670.8A CN114808705A (en) | 2022-02-28 | 2022-02-28 | Prestress tension operation platform with protection facilities |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114808705A true CN114808705A (en) | 2022-07-29 |
Family
ID=82528881
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210184670.8A Pending CN114808705A (en) | 2022-02-28 | 2022-02-28 | Prestress tension operation platform with protection facilities |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114808705A (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20100133653A (en) * | 2009-06-12 | 2010-12-22 | 김근택 | Tension frame for manufactyring prestressed concrete beam girder of pretension type, and method for installing tendons using tension frame |
| CN203973750U (en) * | 2014-07-16 | 2014-12-03 | 中铁十九局集团第二工程有限公司 | Integral prefabricated T girder tensioning protection canopy |
| 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 |
| CN105484165A (en) * | 2016-01-13 | 2016-04-13 | 浙江大学城市学院 | Integrated prestress tensioning frame structure and manufacturing and using methods thereof |
| CN205205677U (en) * | 2015-11-26 | 2016-05-04 | 中交一公局第二工程有限公司 | Prefabricated beam slab stretch -draw work platform |
| CN206902552U (en) * | 2017-04-28 | 2018-01-19 | 中国一冶集团有限公司 | A kind of beam slab tensioning protective stent |
| CN109113347A (en) * | 2018-08-27 | 2019-01-01 | 中国十七冶集团有限公司 | A kind of operating platform and its construction method of Post-tension Prestress Construction |
| CN209010981U (en) * | 2018-09-21 | 2019-06-21 | 云南省建设投资控股集团有限公司 | A kind of girder pre-stressed muscle stretch-draw jack lifting of T and tensioning protective device |
| CN209552092U (en) * | 2018-11-12 | 2019-10-29 | 中国十七冶集团有限公司 | A kind of Precast T-Beam tensioning Job Operations platform |
| CN211074121U (en) * | 2019-10-31 | 2020-07-24 | 山西机械化建设集团有限公司 | Prefabricated prestressed reinforced concrete box girder tensioning platform |
| CN211735075U (en) * | 2019-10-14 | 2020-10-23 | 中交二公局第一工程有限公司 | Bent cap reinforcing bar stretch-draw platform |
| CN213563427U (en) * | 2020-10-27 | 2021-06-29 | 中铁十四局集团第四工程有限公司 | Precast beam removes stretch-draw rack |
| CN214214214U (en) * | 2020-12-01 | 2021-09-17 | 中国铁建大桥工程局集团有限公司 | Precast beam stretch-draw rack |
-
2022
- 2022-02-28 CN CN202210184670.8A patent/CN114808705A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20100133653A (en) * | 2009-06-12 | 2010-12-22 | 김근택 | Tension frame for manufactyring prestressed concrete beam girder of pretension type, and method for installing tendons using tension frame |
| CN203973750U (en) * | 2014-07-16 | 2014-12-03 | 中铁十九局集团第二工程有限公司 | Integral prefabricated T girder tensioning protection canopy |
| 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 |
| CN205205677U (en) * | 2015-11-26 | 2016-05-04 | 中交一公局第二工程有限公司 | Prefabricated beam slab stretch -draw work platform |
| CN105484165A (en) * | 2016-01-13 | 2016-04-13 | 浙江大学城市学院 | Integrated prestress tensioning frame structure and manufacturing and using methods thereof |
| CN206902552U (en) * | 2017-04-28 | 2018-01-19 | 中国一冶集团有限公司 | A kind of beam slab tensioning protective stent |
| CN109113347A (en) * | 2018-08-27 | 2019-01-01 | 中国十七冶集团有限公司 | A kind of operating platform and its construction method of Post-tension Prestress Construction |
| CN209010981U (en) * | 2018-09-21 | 2019-06-21 | 云南省建设投资控股集团有限公司 | A kind of girder pre-stressed muscle stretch-draw jack lifting of T and tensioning protective device |
| CN209552092U (en) * | 2018-11-12 | 2019-10-29 | 中国十七冶集团有限公司 | A kind of Precast T-Beam tensioning Job Operations platform |
| CN211735075U (en) * | 2019-10-14 | 2020-10-23 | 中交二公局第一工程有限公司 | Bent cap reinforcing bar stretch-draw platform |
| CN211074121U (en) * | 2019-10-31 | 2020-07-24 | 山西机械化建设集团有限公司 | Prefabricated prestressed reinforced concrete box girder tensioning platform |
| CN213563427U (en) * | 2020-10-27 | 2021-06-29 | 中铁十四局集团第四工程有限公司 | Precast beam removes stretch-draw rack |
| CN214214214U (en) * | 2020-12-01 | 2021-09-17 | 中国铁建大桥工程局集团有限公司 | Precast beam stretch-draw rack |
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| PB01 | Publication | ||
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Application publication date: 20220729 |