CN110644351A - Assembled combined stop block of cable-stayed bridge and use method thereof - Google Patents
Assembled combined stop block of cable-stayed bridge and use method thereof Download PDFInfo
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- CN110644351A CN110644351A CN201910919110.0A CN201910919110A CN110644351A CN 110644351 A CN110644351 A CN 110644351A CN 201910919110 A CN201910919110 A CN 201910919110A CN 110644351 A CN110644351 A CN 110644351A
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- stop block
- assembled
- support
- cable
- block
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- 238000000034 method Methods 0.000 title claims abstract description 16
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 43
- 239000010959 steel Substances 0.000 claims abstract description 43
- 239000004575 stone Substances 0.000 claims abstract description 23
- 238000010276 construction Methods 0.000 claims abstract description 17
- 230000000694 effects Effects 0.000 claims abstract description 7
- 239000011150 reinforced concrete Substances 0.000 claims description 7
- 238000003466 welding Methods 0.000 claims description 6
- 238000005520 cutting process Methods 0.000 abstract description 12
- 238000004904 shortening Methods 0.000 abstract description 3
- 238000006243 chemical reaction Methods 0.000 description 5
- 238000005260 corrosion Methods 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Images
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
- E01D19/00—Structural or constructional details of bridges
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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
- E01D11/00—Suspension or cable-stayed bridges
- E01D11/04—Cable-stayed bridges
-
- 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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- 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
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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
- E01D2101/00—Material constitution of bridges
- E01D2101/30—Metal
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses an assembled combined stop block of a cable-stayed bridge and a using method thereof. Including the girder steel, the girder steel lower extreme is equipped with the support, and the activity of support lower extreme is equipped with the support stone backing, is equipped with fixed dog on the girder steel of support both sides respectively, and the relative inboard lower extreme of the fixed dog in both sides all is equipped with the notch, and the activity is equipped with the assembled dog on the notch, is the post-cast strip between assembled dog and the support stone backing. The invention has the advantages of simple construction, convenient use, avoiding cutting the thrust stop block, meeting the construction requirement, shortening the construction period and reducing the cost.
Description
Technical Field
The invention relates to a cable-stayed bridge consolidation stop block, in particular to an assembled combined stop block of a cable-stayed bridge and a using method thereof.
Background
A cable-stayed bridge is also called a diagonal tension bridge, is a bridge with a main beam directly pulled on a bridge tower by a plurality of guys, and is a structural system formed by combining a pressure-bearing tower, a pulled guy and a bending-bearing beam body.
At present, thrust blocks are respectively arranged on two sides of a support at the lower end of a main beam of a cable-stayed bridge, and the cable-stayed bridge and the thrust blocks are a whole, in a steel structure factory, the thrust stop block and a steel beam (main beam) are welded into a whole, a support at the lower end of the main beam of the cable-stayed bridge is placed on a poured support cushion stone in the installation process, and a post-pouring belt of 40-60 cm is respectively reserved between the support base cushion and the thrust stop blocks at the two sides of the lower end of the steel beam, after the support at the lower end of the steel beam is placed on the support cushion stone, the post-pouring belts at two sides of the support cushion stone are poured by reinforced concrete, the thrust stop blocks at two sides of the steel beam and the support cushion stone are fixed, the cable-stayed bridge is prevented from moving in the installation or rotation process, after the full bridge is folded, parts of the thrust stop blocks close to the two sides of the post-cast strip are manually cut off, and the cut-off parts are larger than the sliding distance of the steel beam support, so that the conversion of a bridge structure system is completed. In the above-mentioned in-process, there is the construction complicacy, and when the manual work cuts off the thrust dog, can destroy the original anticorrosive structure of thrust dog, current most adoption oxygen cutting simultaneously can heat cutting part and around, can all have the influence to thrust dog and girder steel structure, and danger coefficient is high in the cutting process simultaneously, and it is very complicated to polish, handle such as anticorrosive to cutting part after the cutting.
Disclosure of Invention
The invention aims to provide a cable-stayed bridge assembled combined stop block and a using method thereof. The invention has the characteristics of simple construction, convenient use, capability of avoiding cutting the thrust stop block, meeting construction requirements, shortening construction period and reducing cost.
The technical scheme of the invention is as follows: the utility model provides a cable-stay bridge assembled combination dog, including the girder steel, the girder steel lower extreme is equipped with the support, and the activity of support lower extreme is equipped with the support stone backing, is equipped with fixed dog on the girder steel of support both sides respectively, and the relative inboard lower extreme of the fixed dog in both sides all is equipped with the notch, and the activity is equipped with the assembled dog on the notch, is the post-cast strip between assembled dog and the support stone backing.
In the assembled combined stop block for the cable-stayed bridge, the assembled stop block is connected to the notch of the fixed stop block through a bolt.
In the assembled combined stop block for the cable-stayed bridge, the assembled stop block is 3-10cm higher than the post-cast strip.
In the assembled combined check block for the cable-stayed bridge, the upper end of the assembled check block (4) is shorter than the lower end longitudinal bridge, and the included angle between the edge of the assembled check block (4) departing from the post-cast strip (5) and the vertical direction is 2-4o。
In the assembled combined stop block for the cable-stayed bridge, the fixed stop block is connected to the lower end of the steel beam through welding.
The use method of the assembled combined stop block of the cable-stayed bridge comprises the following steps:
A. welding the fixed stop blocks on two sides of a support at the lower end of the steel beam, connecting the assembly type stop blocks to notches of the fixed stop blocks through bolts, and then transporting the steel beam to a construction site;
B. mounting a support at the lower end of the steel beam on a support cushion stone, pouring reinforced concrete in a post-pouring zone between the assembled stop block and the support cushion stone, and continuously mounting other components;
C. after the full bridge is closed, the bolts for fixing the check blocks and the assembly check blocks are removed, the assembly check blocks on the notches are moved downwards, and the assembly check blocks are separated and taken out.
In the using method of the assembled combined stop block of the cable-stayed bridge, in the step B, after the post-cast strip between the assembled stop block and the support base cushion stone is poured with the reinforced concrete for 8 to 15 days, other components are continuously installed.
In the step C, after the full bridge is folded, the bolt for fixing the stop block and the assembled stop block is removed, the assembled stop block is knocked downwards, so that the assembled stop block on the notch moves downwards, the assembled stop block is separated and taken out, and the conversion of the bridge structure system is completed.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the invention, through A, in a steel structure factory, the fixed stop blocks are welded on two sides of a support at the lower end of a steel beam, and after the assembled stop blocks are connected to notches of the fixed stop blocks through bolts, the steel beam is transported to a construction site; B. mounting a support at the lower end of a steel beam on a support base stone, pouring reinforced concrete on a post-pouring belt between an assembly type stop block and the support base stone, continuously mounting a cable-stayed bridge after the post-pouring belt is solidified, and fixing the assembly type stop block and a fixed stop block at two sides of the steel beam and the support base stone by pouring the post-pouring belt at two sides of the support base stone through reinforced cement in the process of mounting the cable-stayed bridge so as to prevent the cable-stayed bridge from moving in the mounting or turning process; C. after the full bridge is folded, removing bolts of the fixed stop block and the assembly stop block, knocking the assembly stop block downwards to enable the assembly stop block on the notch to move downwards, separating and taking out the assembly stop block, enabling the taken-out assembly stop block to be reusable, guaranteeing the sliding distance of the steel beam support through notches on two sides of the post-cast strip, and completing the conversion of a bridge structural system; the invention avoids the technical defect that the conversion of a bridge structure system is completed by manually cutting off part of the thrust stop blocks close to the two sides of the post-cast strip after the full bridge is folded, wherein the cut-off part is larger than the sliding distance of the steel beam support, realizes simple construction and convenient use, avoids cutting the thrust stop blocks and can meet the construction requirements.
2. The invention does not adopt manual cutting to remove the thrust stop block, so that the original anti-corrosion structure can not be damaged, the structures of the stop block and the steel beam can not be influenced, the processing of polishing, anti-corrosion and the like on the cutting part is not needed, the construction period is shortened, and the cost and the labor intensity of workers are greatly reduced.
In conclusion, the anti-thrust stop block has the advantages of being simple in construction, convenient to use, capable of avoiding cutting the anti-thrust stop block, capable of meeting construction requirements, capable of shortening construction period and capable of reducing cost.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a partial schematic view of the present invention;
FIG. 3 is a schematic view of the assembled block (4) of the present invention after removal;
fig. 4 is a schematic structural view of the fabricated stopper (4) of the present invention.
The labels in the figures are: 1-steel beam, 2-fixed stop block, 3-bolt, 4-fabricated stop block, 5-post-cast strip, 6-support, 7-support cushion stone and 8-notch.
Detailed Description
The invention is further illustrated by the following figures and examples, which are not to be construed as limiting the invention.
Examples are given. An assembled combined stop block of a cable-stayed bridge is shown in figures 1-4 and comprises a steel beam 1, wherein a support 6 is arranged at the lower end of the steel beam 1, a support cushion stone 7 is movably arranged at the lower end of the support 6, fixed stop blocks 2 are respectively arranged on the steel beam 1 at two sides of the support 6, notches 8 are respectively arranged at the lower ends of the opposite inner sides of the fixed stop blocks 2 at two sides, an assembled stop block 4 is movably arranged on each notch 8, and a post-cast strip 5 is arranged between each assembled stop block 4 and the support cushion stone 7; the post-cast strip 5 is flush with the support base 7.
The assembled stop block 4 is connected to the notch 8 of the fixed stop block 2 through the bolt 3, so that the assembled stop block 4 can be conveniently installed and separated to be taken out.
The assembled stop block 4 is 3-10cm higher than the post-cast strip 5, after the full bridge is folded, the assembled stop block 4 is separated and taken out, mutual contact between the assembled stop block 4 and the post-cast strip 5 is avoided, and the sliding distance of the steel beam support is ensured through the notches 8 on the two sides of the post-cast strip 5.
The upper end of the assembly type check block (4) is shorter than the lower end longitudinal bridge direction, and the included angle between the edge of the assembly type check block (4) departing from the post-pouring belt (5) and the vertical direction is 2-4o(ii) a Under the effect that assembled dog 4 upper end is shorter than the lower extreme, the assembled dog 4 on the notch 8 of being convenient for moves downwards, realizes assembled dog 4 separation and takes out simple and conveniently.
The fixed stop block 2 is connected to the lower end of the steel beam 1 through welding.
The use method of the assembled combined stop block of the cable-stayed bridge comprises the following steps:
A. in a steel structure factory, welding the fixed stop blocks 2 on two sides of a support 6 at the lower end of the steel beam 1, connecting the assembled stop blocks 4 to notches 8 of the fixed stop blocks 2 through bolts 3, and then transporting the steel beam 1 to a construction site;
B. mounting a support 6 at the lower end of the steel beam 1 on a support cushion 7, pouring reinforced concrete on a post-pouring belt 5 between the assembled stop block 4 and the support cushion 7 for 8-15 days, and then continuously mounting other components;
C. after the full bridge is folded, the bolts 3 of the fixed stop blocks 2 and the assembly stop blocks 4 are removed, the assembly stop blocks 4 are knocked downwards, the assembly stop blocks 4 on the notches 8 move downwards, the assembly stop blocks 4 are separated and taken out, the sliding distance of the steel beam support is guaranteed through the notches 8 on the two sides of the post-pouring belt 5, and the conversion of a bridge structure system is completed.
Claims (8)
1. The utility model provides a cable-stay bridge assembled combination dog which characterized in that: including girder steel (1), girder steel (1) lower extreme is equipped with support (6), and support (6) lower extreme activity is equipped with support stone (7), is equipped with fixed dog (2) on girder steel (1) of support (6) both sides respectively, and the lower extreme of the relative inboard of both sides fixed dog (2) all is equipped with notch (8), and the activity is equipped with assembled dog (4) on notch (8), is post-cast strip (5) between assembled dog (4) and support stone (7).
2. The assembled combination block for cable-stayed bridge according to claim 1, wherein: the assembled stop block (4) is connected to the notch (8) of the fixed stop block (2) through a bolt (3).
3. The assembled combination block for cable-stayed bridge according to claim 1, wherein: the assembled stop block (4) is 3-10cm higher than the post-cast strip (5).
4. The assembled combination block for cable-stayed bridge according to claim 1, wherein: the upper end of the assembly type check block (4) is shorter than the lower end longitudinal bridge direction, and the included angle between the edge of the assembly type check block (4) departing from the post-pouring belt (5) and the vertical direction is 2-4o。
5. The assembled combination block for cable-stayed bridge according to claim 1, wherein: the fixed stop block (2) is connected to the lower end of the steel beam (1) through welding.
6. A method for using the fabricated combination block for cable-stayed bridges according to any one of claims 1 to 5, wherein: the method comprises the following steps:
A. welding the fixed stop block (2) on two sides of a support (6) at the lower end of the steel beam (1), connecting the assembled stop block (4) on a notch (8) of the fixed stop block (2) through a bolt (3), and then transporting the steel beam (1) to a construction site;
B. installing a support (6) at the lower end of the steel beam (1) on a support base stone (7), pouring reinforced concrete on a post-pouring belt (5) between the assembled stop block (4) and the support base stone (7), and continuously installing other components;
C. after the full bridge is folded, the bolt (3) of the fixed stop block (2) and the assembled stop block (4) is removed, the assembled stop block (4) on the notch (8) is moved downwards, and the assembled stop block (4) is separated and taken out.
7. The method for using the fabricated combination block of a cable-stayed bridge according to claim 6, wherein: and in the step B, after the post-cast strip (5) between the assembled stop block (4) and the support base cushion stone (7) is cast with the reinforced concrete for 8-15 days, other components are continuously installed.
8. The method for using the fabricated combination block of a cable-stayed bridge according to claim 6, wherein: and in the step C, after the full bridge is closed, the bolt (3) for fixing the stop block (2) and the assembled stop block (4) is removed, the assembled stop block (4) is knocked downwards, the assembled stop block (4) on the notch (8) moves downwards, and the assembled stop block (4) is separated and taken out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910919110.0A CN110644351A (en) | 2019-09-26 | 2019-09-26 | Assembled combined stop block of cable-stayed bridge and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910919110.0A CN110644351A (en) | 2019-09-26 | 2019-09-26 | Assembled combined stop block of cable-stayed bridge and use method thereof |
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| Publication Number | Publication Date |
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| CN110644351A true CN110644351A (en) | 2020-01-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910919110.0A Pending CN110644351A (en) | 2019-09-26 | 2019-09-26 | Assembled combined stop block of cable-stayed bridge and use method thereof |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002138416A (en) * | 2000-10-30 | 2002-05-14 | Shimizu Corp | Method for constructing elevated structure, erecting device and constructing device |
| CN102277838A (en) * | 2011-05-13 | 2011-12-14 | 四川省交通运输厅公路规划勘察设计研究院 | Section steel seismic prevention stop block |
| CN105603877A (en) * | 2015-12-24 | 2016-05-25 | 中铁大桥局集团第二工程有限公司 | Large-span cable-stayed bridge steel beam locking and adjusting method |
| CN105970799A (en) * | 2016-05-18 | 2016-09-28 | 清华大学 | Structure for preventing bridge from overturning transversely and construction method of structure |
| CN109137739A (en) * | 2018-09-12 | 2019-01-04 | 长安大学 | A kind of tower anchor of self-anchored suspension bridge-quick method of construction of the anchor combined formula of pier |
| CN211228056U (en) * | 2019-09-26 | 2020-08-11 | 贵州桥梁建设集团有限责任公司 | Assembled combined stop block of cable-stayed bridge |
-
2019
- 2019-09-26 CN CN201910919110.0A patent/CN110644351A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002138416A (en) * | 2000-10-30 | 2002-05-14 | Shimizu Corp | Method for constructing elevated structure, erecting device and constructing device |
| CN102277838A (en) * | 2011-05-13 | 2011-12-14 | 四川省交通运输厅公路规划勘察设计研究院 | Section steel seismic prevention stop block |
| CN105603877A (en) * | 2015-12-24 | 2016-05-25 | 中铁大桥局集团第二工程有限公司 | Large-span cable-stayed bridge steel beam locking and adjusting method |
| CN105970799A (en) * | 2016-05-18 | 2016-09-28 | 清华大学 | Structure for preventing bridge from overturning transversely and construction method of structure |
| CN109137739A (en) * | 2018-09-12 | 2019-01-04 | 长安大学 | A kind of tower anchor of self-anchored suspension bridge-quick method of construction of the anchor combined formula of pier |
| CN211228056U (en) * | 2019-09-26 | 2020-08-11 | 贵州桥梁建设集团有限责任公司 | Assembled combined stop block of cable-stayed bridge |
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