CN205576758U - System is prevent wind in regional large -span cable -stay bridge steel case beam length cantilevered erection construction of strong typhoon - Google Patents
System is prevent wind in regional large -span cable -stay bridge steel case beam length cantilevered erection construction of strong typhoon Download PDFInfo
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- CN205576758U CN205576758U CN201620177710.6U CN201620177710U CN205576758U CN 205576758 U CN205576758 U CN 205576758U CN 201620177710 U CN201620177710 U CN 201620177710U CN 205576758 U CN205576758 U CN 205576758U
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- reaction frame
- wind resistance
- cushion cap
- fitting
- cable
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Abstract
The utility model discloses a system is prevent wind in regional large -span cable -stay bridge steel case beam length cantilevered erection construction of strong typhoon, including cable tower, cable tower's bottom has the cushion cap, is equipped with anti -wind cable reaction frame on the cushion cap, is equipped with the beam anchor structure on the steel case roof beam that cable tower had erect, stretch -draw anti -wind cable between anti -wind cable reaction frame and beam anchor structure. The utility model discloses the stretch -draw anti -wind is all alone between the anti -wind cable reaction frame of direct steel case roof beam that is erectting and cushion cap, ensures steel box girder structure's the safety of stabilizing, compares with prior art, and this technical scheme is less to river course navigation influence, and safe risk is low. Materials such as reaction frame built -in fitting, anti -wind cable reaction frame, beam anchor structure and anti -wind cable are construction conventional material, and the process of just being under construction is simple swift, and the cost drops into very for a short time. The utility model discloses anti -wind cable lower extreme anchor point sets up on permanent cushion cap, construction convenience, and application scope is wide, not influenced by water -level fluctuation and stormy waves etc. And is little to the environment dependence, excellent in use effect, the suitability is strong.
Description
Technical field
This utility model is used for bridge erection technical field, particularly relates to a kind of violent typhoon region large span stayed-cable bridge steel box-girder long cantilever erection construction Windproof system.
Background technology
Along with highway in China, the Large scale construction of railway traffic net, the construction of large span stayed-cable bridge frequently occurs, when violent typhoon district carries out Construction of Large-sized Cable-stay Bridge, before closure, how to guarantee that the stable safety of steel box girder is always the research weight difficult point of Construction control.
Conventional steel girder cantilever erection construction Radix Saposhnikoviae scheme has two kinds:
One is inserted to play steel-pipe pile anchorage style.Below girder steel, at a certain distance from distance Sarasota, anchor point is set, by wind resistance rope, girder steel is connected anchoring with anchor point, after girder steel joins the two sections of a bridge, etc, then removes wind resistance rope and anchor point.For keeping the balance and stability of girder steel in work progress, anchor point need to be respectively provided with in Sarasota both sides, general end bay side anchor solid point is positioned at phytal zone or land, anchor foundation can use large-scale concrete basis or the form of inserted to play steel-pipe pile, but main span side is often positioned in the middle of river course, anchor foundation uses steel-pipe pile in inserted to play water, then arranges the form of steel construction anchor point on stake top.
Two is to use boats and ships to carry out positioning and anchoring mode of casting anchor.If end bay side is positioned at phytal zone or land, anchor foundation can use large-scale concrete basis or the form of inserted to play steel-pipe pile, in can use anchorage regardless positioning and anchoring mode across side.
The shortcoming of prior art:
(1), inserted to play steel-pipe pile anchorage style shortcoming:
(1), main span side steel-pipe pile anchor point be often positioned in the middle of river course, affect river course navigation, for boats and ships pass through constant and exist bigger potential safety hazard.
(2), the inserted to play of steel-pipe pile and the dismounting in later stage in water, large-scale over-water construction equipment need to be used, cost puts into higher；End bay side uses the form anchoring of large-scale concrete basis or inserted to play steel-pipe pile, and construction cost puts into the highest.
(3), steel-pipe pile anchor point waterborne install and Demolition Construction, operation is relatively complicated, and is over-water construction, there is certain security risk, and especially when taking navigable river construction, security risk is bigger.
(2), ship anchor casts anchor positioning and anchoring mode shortcoming:
(1), ship anchor solid point, main span side be often positioned in the middle of river course, and need to draw and set anchor line anchoring hull, have a strong impact on river course navigation, inconvenience current for boats and ships and there is bigger potential safety hazard.
(2), in water, boats and ships long-term lease puts into higher as anchor point, construction cost；End bay side uses the form anchoring of large-scale concrete basis or inserted to play steel-pipe pile, and construction cost puts into the highest.
(3), boats and ships anchoring, relatively big by fluctuation in stage tide and Lidar Equation, be generally unsuitable for the local construction that SEA LEVEL VARIATION is relatively big, stormy waves is bigger.
Utility model content
For solving the problems referred to above, this utility model provides a kind of impact reduced river course navigation, reduces security risk, and saves the violent typhoon region large span stayed-cable bridge steel box-girder long cantilever erection construction Windproof system that construction cost puts into.
This utility model solves its technical problem the technical scheme is that violent typhoon region large span stayed-cable bridge steel box-girder long cantilever erection construction Windproof system, including Sarasota, the bottom of Sarasota has cushion cap, cushion cap is provided with wind resistance rope reaction frame, the steel box-girder that Sarasota has set up is provided with beam anchor structure, stretch-draw wind resistance rope between described wind resistance rope reaction frame and beam anchor structure.
Being further used as the improvement of technical solutions of the utility model, described cushion cap is provided with the reaction frame built-in fitting installing described wind resistance rope reaction frame.
Being further used as the improvement of technical solutions of the utility model, one end of described wind resistance rope uses P anchor to be anchored at beam anchor structure, and the other end uses anchorage to be anchored on cushion cap above wind resistance rope reaction frame, and described anchorage can be by builder's tonnage stretch-draw wind resistance rope.
It is further used as the improvement of technical solutions of the utility model, described cushion cap includes base and is located at the cone boss of described base top, described cushion cap is equipped with reaction frame built-in fitting in side, span centre direction and side, end bay direction, reaction frame built-in fitting includes the first built-in fitting being located in base and the second built-in fitting being located in cone boss, described wind resistance rope reaction frame includes fixing the vertical supporting being connected with the first built-in fitting and fixing, with the second built-in fitting, the diagonal brace being connected, the top of described vertical supporting and diagonal brace is fixing to be connected, described anchorage is fixedly mounted on the top of vertical supporting and diagonal brace.
The beneficial effects of the utility model:
(1), this utility model directly stretch-draw wind resistance rope between the wind resistance rope reaction frame of the steel box-girder set up and cushion cap, it is ensured that the stable safety of steel box girder, compared with prior art, the technical program is less on river course navigation impact, and security risk is low.
(2), the material such as reaction frame built-in fitting, wind resistance rope reaction frame, beam anchor structure and wind resistance rope be construction conventional material, and working procedure simple and fast, cost puts into the least.
(3), wind resistance rope anchoring lower ends point of the present invention be arranged on above permanent cushion cap, easy construction, security risk is little, applied widely, and is not affected by SEA LEVEL VARIATION and stormy waves etc., little to environmental factor dependence, and using effect is good, and the suitability is strong.
Accompanying drawing explanation
The utility model is described in further detail below in conjunction with the accompanying drawings:
Fig. 1 is reaction frame embedded part structure schematic diagram on this utility model cushion cap；
Fig. 2 is that this utility model installs wind resistance rope reaction frame structural representation on reaction frame built-in fitting；
Fig. 3 is this utility model beam anchor dot structure schematic diagram；
Fig. 4 is that this utility model installs interim wind resistance rope stretch-draw schematic diagram.
Detailed description of the invention
Referring to figs. 1 through Fig. 4, that show the concrete structure of the preferred embodiment of this utility model.Will be detailed below the construction features of each element of this utility model, if and when being described direction (upper and lower, left and right, before and after), it is to describe for reference with the structure shown in Fig. 1, but actually used direction of the present utility model is not limited thereto.
This utility model provides a kind of violent typhoon region large span stayed-cable bridge steel box-girder long cantilever erection construction Windproof system, including Sarasota 2, the bottom of Sarasota 2 has cushion cap 1, cushion cap 1 is provided with wind resistance rope reaction frame 7, the steel box-girder that Sarasota 2 has set up is provided with beam anchor structure 5, stretch-draw wind resistance rope 8 between described wind resistance rope reaction frame 7 and beam anchor structure 5.
Wherein, one end of described wind resistance rope 8 uses P anchor to be anchored at above beam anchor structure 5, and the other end uses anchorage 9 to be anchored on cushion cap 1 above wind resistance rope reaction frame 7, and described anchorage 9 can be by builder's tonnage stretch-draw wind resistance rope 8.
Described cushion cap 1 includes base 11 and is located at the cone boss 12 at described base 11 top, and described cushion cap 1 is equipped with reaction frame built-in fitting 3 in side, span centre direction and side, end bay direction.Reaction frame built-in fitting 3 includes the first built-in fitting being located in base 11 and the second built-in fitting being located in cone boss 12, described wind resistance rope reaction frame 7 includes fixing the vertical supporting 71 being connected with the first built-in fitting and fixing the diagonal brace 72 being connected with the second built-in fitting, the top of described vertical supporting 71 and diagonal brace 72 is fixing to be connected, and described anchorage 9 is fixedly mounted on vertical supporting 71 and the top of diagonal brace 72.
During construction, sequentially include the following steps:
S10. construction bearing platform 1 and Sarasota 2, and reaction frame built-in fitting 3 is installed on cushion cap 1；
S20. pre-manufactured steel box girder segment, described steel box girder segment includes common box girder segment 4 and is provided with the specific bin girder segment 6 of beam anchor structure 5, setting up steel box girder segment to span centre and end bay direction symmetry on Sarasota 2；
S30. set a roof beam in place the initial stage, not yet set up specific bin girder segment 6(near span centre position at steel box-girder) time, wind resistance rope reaction frame 7 is installed in advance on reaction frame built-in fitting 3；
S40. continue to set a roof beam in place, until being inserted into specific bin girder segment 6, wind resistance rope 8 is installed between wind resistance rope reaction frame 7 and beam anchor structure 5, one end of described wind resistance rope 8 uses P anchor to be anchored at above beam anchor structure 5, the other end uses anchorage 9 to be anchored on cushion cap above wind resistance rope reaction frame 7, and carries out stretch-draw by builder's tonnage, during wind resistance rope 8 stretch-draw, workmen stands in above cushion cap 1, and tensioning process requires to carry out classification symmetry control routinely；
S50. continue to set a roof beam in place until joining the two sections of a bridge, etc；
S60.
After closure, remove wind resistance rope 8, wind resistance rope reaction frame 7 and beam anchor structure 5, when removing wind resistance rope 8, wind resistance rope reaction frame 7, first stretch-draw being used above at cushion cap 1 moves back rope mode, stretching force when unloading wind resistance rope 8 is installed, then remove wind resistance rope reaction frame 7, then repair reaction frame built-in fitting 3 position, cushion cap 1 surface, and carry out application reparation to removing beam anchor structure 5 position at the bottom of specific bin girder segment 6 beam.
This utility model uses technique scheme to have following technical effect that
(1), this utility model directly stretch-draw wind resistance rope between the wind resistance rope reaction frame of the steel box-girder set up and cushion cap, it is ensured that the stable safety of steel box girder, compared with prior art, the technical program is less on river course navigation impact, and security risk is low.
(2), the material such as reaction frame built-in fitting, wind resistance rope reaction frame, beam anchor structure and wind resistance rope be construction conventional material, and working procedure simple and fast, cost puts into the least.
(3), this utility model wind resistance rope anchoring lower ends point be arranged on above permanent cushion cap, easy construction, security risk is little, applied widely, and is not affected by SEA LEVEL VARIATION and stormy waves etc., little to environmental factor dependence, and using effect is good, and the suitability is strong.
Certainly, the invention is not limited to above-mentioned embodiment, those of ordinary skill in the art also can make equivalent variations or replacement on the premise of this utility model spirit, and modification or the replacement of these equivalents are all contained in the application claim limited range.
Claims (4)
1. violent typhoon region large span stayed-cable bridge steel box-girder long cantilever erection construction Windproof system, it is characterized in that: include Sarasota, the bottom of Sarasota has cushion cap, cushion cap is provided with wind resistance rope reaction frame, the steel box-girder that Sarasota has set up is provided with beam anchor structure, stretch-draw wind resistance rope between described wind resistance rope reaction frame and beam anchor structure.
Violent typhoon region the most according to claim 1 large span stayed-cable bridge steel box-girder long cantilever erection construction Windproof system, it is characterised in that: described cushion cap is provided with the reaction frame built-in fitting installing described wind resistance rope reaction frame.
Violent typhoon region the most according to claim 2 large span stayed-cable bridge steel box-girder long cantilever erection construction Windproof system, it is characterized in that: one end of described wind resistance rope uses P anchor to be anchored at beam anchor structure, the other end uses anchorage to be anchored on cushion cap above wind resistance rope reaction frame, and described anchorage can be by builder's tonnage stretch-draw wind resistance rope.
Violent typhoon region the most according to claim 3 large span stayed-cable bridge steel box-girder long cantilever erection construction Windproof system, it is characterized in that: described cushion cap includes base and is located at the cone boss of described base top, described cushion cap is equipped with reaction frame built-in fitting in side, span centre direction and side, end bay direction, reaction frame built-in fitting includes the first built-in fitting being located in base and the second built-in fitting being located in cone boss, described wind resistance rope reaction frame includes fixing the vertical supporting being connected with the first built-in fitting and fixing, with the second built-in fitting, the diagonal brace being connected, the top of described vertical supporting and diagonal brace is fixing to be connected, described anchorage is fixedly mounted on the top of vertical supporting and diagonal brace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620177710.6U CN205576758U (en) | 2016-03-08 | 2016-03-08 | System is prevent wind in regional large -span cable -stay bridge steel case beam length cantilevered erection construction of strong typhoon |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620177710.6U CN205576758U (en) | 2016-03-08 | 2016-03-08 | System is prevent wind in regional large -span cable -stay bridge steel case beam length cantilevered erection construction of strong typhoon |
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| Publication Number | Publication Date |
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| CN205576758U true CN205576758U (en) | 2016-09-14 |
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| CN201620177710.6U Expired - Fee Related CN205576758U (en) | 2016-03-08 | 2016-03-08 | System is prevent wind in regional large -span cable -stay bridge steel case beam length cantilevered erection construction of strong typhoon |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109306656A (en) * | 2018-11-05 | 2019-02-05 | 中国石油天然气集团公司 | A kind of pipeline suspension crossing structures under wind system |
| CN113267154A (en) * | 2021-07-01 | 2021-08-17 | 滨州职业学院 | Automatic receive and release boats and ships distance cable device |
-
2016
- 2016-03-08 CN CN201620177710.6U patent/CN205576758U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109306656A (en) * | 2018-11-05 | 2019-02-05 | 中国石油天然气集团公司 | A kind of pipeline suspension crossing structures under wind system |
| CN113267154A (en) * | 2021-07-01 | 2021-08-17 | 滨州职业学院 | Automatic receive and release boats and ships distance cable device |
| CN113267154B (en) * | 2021-07-01 | 2022-05-24 | 滨州职业学院 | Automatic receive and release boats and ships distance cable device |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160914 Termination date: 20210308 |
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| CF01 | Termination of patent right due to non-payment of annual fee |