CN204401448U - Simple-supported thencontinuous bridge temporary support - Google Patents
Simple-supported thencontinuous bridge temporary support Download PDFInfo
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- CN204401448U CN204401448U CN201420831478.4U CN201420831478U CN204401448U CN 204401448 U CN204401448 U CN 204401448U CN 201420831478 U CN201420831478 U CN 201420831478U CN 204401448 U CN204401448 U CN 204401448U
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Abstract
A kind of simple-supported thencontinuous bridge temporary support, relates to field of bridge construction, particularly the temporary support of simple-supported thencontinuous case beam system transform.By base, middle piece, upper piece, bolt forms, and can be changed the height of bearing by swivel bolt.Adopt steel, have very high compressive strength, after combination, upper and lower surface is smooth, well case beam load can be passed to bent cap.After box girder pre-stressed applying, during system transform, only need rotating bolt, temporary support reduces height, and case beam is fallen on permanent bearing, completes system transform.Bearing height regulates accurately, and it is convenient, reusable to remove, thus can reduce construction cost.
Description
Technical field
The utility model relates to a kind of simple-supported thencontinuous bridge temporary support, relates to field of bridge construction, particularly the temporary support of simple-supported thencontinuous case beam system transform.
Background technology
Bridge adopts simple-supported thencontinuous structure, can press simply supported beam construction, then after Shi Hanzhang, make bridge become beam structure by system transform, reasonable stress, can subtract the cross dimensions of small box girder, reduce construction costs, convenient construction.Therefore, simple-supported thencontinuous structural bridge is widely used in big-and-middle-sized bridge.
Relate to temporary support during simple-supported thencontinuous bridge construction, prior art is generally adopt sand box temporary support and sulphur-bonded mortar temporary support.Sand box temporary support fills dry sand in special sandbox, supports the piston on top, piston support box beam, and open sand export during system transform and release dry sand, piston lands.Sand box temporary support installation and removal is cumbersome, and the difference of the compaction rate that dry sand is filled and loading can affect the precision of pile equipment, uses back-up sand amount few at bent cap and case beam gap smaller part, falls behind sandbox and take out more difficult under piston.Sulphur-bonded mortar temporary support is on bent cap, arrange the sulphur-bonded mortar bearing configured according to a certain percentage, and the inside is embedded with heating wire, and electrified regulation bearing during system transform, sulphur-bonded mortar dissolves.This temporary support complex manufacturing technology, material quality requirement is high, and consumable material cost is high.
Summary of the invention
The purpose of this utility model is: the simple-supported thencontinuous bridge temporary support providing a kind of convenient construction, is a kind of instrument of bridge construction, by base, middle piece, upper piece three parts form, in being regulated by bolt, block position makes upper piece lifting.Its beneficial effect is that temporary support adopts steel, and have very high compressive strength, after combination, upper and lower surface is smooth, well case beam load can be passed to bent cap.Bearing height regulates accurately, and it is convenient, reusable to remove, thus can reduce construction cost.
The utility model is realized by following technology: temporary support by base 1, middle piece 2, upper piece 3, bolt 4 forms, the box-like that base 1 is rectangle, one inclined-plane is arranged at bottom, middle piece 2 is the oblique wedge shape in two sides, upper piece 3 be the oblique wedge shape of the flat one side of one side, middle piece 2 and upper piece 3 be positioned at base 1, inclined-plane each other coincide.Base 1 is provided with chute 7, places sliding nut 6 in chute 7, bolt 4 coincide with the screw thread of sliding nut 6, due to the restriction of chute 7 when bolt 4 rotates, respect thereto 1 produces flexible, and during bolt 4 flexible can drive, block 2 moves, thus drives the lifting of upper block 3.Temporary support is placed on bent cap, Shi Hanzhang after box girder construction, rotating bolt 4 during system transform, block 2 outwards movement in drive, upper piece 3 to fall thereupon, case beam drops on permanent bearing, and bridge completes system transform.
Accompanying drawing explanation
Fig. 1 is temporary support three-dimensional effect diagram;
Fig. 2 is the top view of temporary support;
The A-A section (upper block raised configuration) of the figure that Fig. 3 is;
Fig. 4 is the A-A section (upper block full state) of Fig. 2;
Fig. 5 is the C-C section of Fig. 3;
Fig. 6 is the B-B section of Fig. 2;
Fig. 7 is the D-D section of Fig. 3.
In figure: 1-base, block in 2-, the upper block of 3-, 4-bolt, 5-transverse slat, 6-sliding nut, 7-chute, 8-elongated hole, 9-locating slot, 11-base ribs, block ribs in 21-, the upper block ribs of 31-, 41-location lug, 42-hexagonal (hexagon)nut.
Detailed description of the invention
Fig. 1 is temporary support three-dimensional effect diagram, and constructional drawing is shown in Fig. 1 ~ Fig. 5.Base 1, middle piece 2, upper piece 3 be three independently parts, adopt 10mm welded steel plate, base 1 is in a rectangular box-like, one inclined-plane is arranged at bottom, and middle piece 2 be the oblique wedge shape in two sides, upper piece 3 be that one side equals simultaneously oblique wedge shape, about gradient 1:5, gradient each other should be consistent.Bolt 4 adopts steel car system, and bolt 4 one end is location lug 41, and the other end is hex nut 42.Middle piece 2 built with locating slot 9, the location lug 41 of bolt 4 is subject to locating slot 9 and limits, relative in block 2 can only forward to and can not move.Base 1 is provided with chute 7, sliding nut 6 is placed in chute 7, bolt 4 coincide with the screw thread of sliding nut 6, and due to the restriction of chute 7 when bolt 4 rotates, respect thereto 1 produces flexible, during bolt 4 flexible can drive, block 2 moves on base 1, be elevated while movement in base 1, be also elevated while the movement of bolt 4 respect thereto 1 for middle piece 2, the place passing base 1 and chute 7 at bolt 4 has elongated hole 8, see Fig. 7, sliding nut 6 can move up and down in chute 7.Decline when moving to chute 7 side for middle piece 2, upper piece 3 to decline thereupon, base 1 is equipped with transverse slat 5, in restriction, block 3 can only move up and down.In order to increase the rigidity of temporary support, base 1, middle piece 2, on be provided with respectively in block 3 base ribs 11, middle piece of ribs 2, on block ribs 31, see Fig. 6.
In actual applications, interim size can be determined according to the weight of case beam, upper piece 3 can make different height, also can pad the steel plate of different-thickness on upper piece 3, meet the bearing requirement of differing heights.
Claims (3)
1. a simple-supported thencontinuous bridge temporary support, mainly comprise: base (1), middle piece (2), upper piece (3), bolt (4), it is characterized in that: the box-like that base (1) is rectangle, one inclined-plane is arranged at bottom, middle piece (2) are the oblique wedge shape in two sides, upper piece (3) are the oblique wedge shape of the flat one side of one side, and middle piece (2) and upper piece (3) are positioned at base (1), and inclined-plane is each other identical.
2. simple-supported thencontinuous bridge temporary support according to claim 1, it is characterized in that: described base (1) is provided with chute (7), sliding nut (6) is placed in chute (7), bolt (4) coincide with the screw thread of sliding nut (6), due to the restriction of chute (7) when bolt (4) rotates, respect thereto (1) produces flexible.
3. simple-supported thencontinuous bridge temporary support according to claim 1, is characterized in that: during described bolt (4) flexible can drive, block (2) is mobile, thus drives the lifting of upper block (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420831478.4U CN204401448U (en) | 2014-12-25 | 2014-12-25 | Simple-supported thencontinuous bridge temporary support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420831478.4U CN204401448U (en) | 2014-12-25 | 2014-12-25 | Simple-supported thencontinuous bridge temporary support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204401448U true CN204401448U (en) | 2015-06-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201420831478.4U Active CN204401448U (en) | 2014-12-25 | 2014-12-25 | Simple-supported thencontinuous bridge temporary support |
Country Status (1)
| Country | Link |
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| CN (1) | CN204401448U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107254848A (en) * | 2017-07-05 | 2017-10-17 | 郑州市市政工程总公司 | Building block system temporary support structure and its construction method |
| CN110117935A (en) * | 2019-05-28 | 2019-08-13 | 中交上海航道局有限公司 | Bridge temporary support blocks and its installation method |
| CN113062225A (en) * | 2021-03-30 | 2021-07-02 | 山东鲁桥建设有限公司 | Temporary supporting device and method for improving stability of mounting and positioning precision of T-shaped beam |
| CN114164765A (en) * | 2021-12-20 | 2022-03-11 | 中铁一局集团有限公司 | Assembly type dismounting method for temporary support of cast-in-place bent cap in narrow space |
-
2014
- 2014-12-25 CN CN201420831478.4U patent/CN204401448U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107254848A (en) * | 2017-07-05 | 2017-10-17 | 郑州市市政工程总公司 | Building block system temporary support structure and its construction method |
| CN110117935A (en) * | 2019-05-28 | 2019-08-13 | 中交上海航道局有限公司 | Bridge temporary support blocks and its installation method |
| CN113062225A (en) * | 2021-03-30 | 2021-07-02 | 山东鲁桥建设有限公司 | Temporary supporting device and method for improving stability of mounting and positioning precision of T-shaped beam |
| CN113062225B (en) * | 2021-03-30 | 2023-02-28 | 山东高速工程建设集团有限公司 | Temporary supporting device and method for improving stability of mounting and positioning precision of T-shaped beam |
| CN114164765A (en) * | 2021-12-20 | 2022-03-11 | 中铁一局集团有限公司 | Assembly type dismounting method for temporary support of cast-in-place bent cap in narrow space |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |