CN204000582U - The spacing bearing of the main pier of steel truss arched bridge - Google Patents
The spacing bearing of the main pier of steel truss arched bridge Download PDFInfo
- Publication number
- CN204000582U CN204000582U CN201420167314.6U CN201420167314U CN204000582U CN 204000582 U CN204000582 U CN 204000582U CN 201420167314 U CN201420167314 U CN 201420167314U CN 204000582 U CN204000582 U CN 204000582U
- Authority
- CN
- China
- Prior art keywords
- block
- lower support
- support plate
- upper bracket
- plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 10
- 239000010959 steel Substances 0.000 title claims abstract description 10
- 238000010276 construction Methods 0.000 abstract description 13
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000004873 anchoring Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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- Bridges Or Land Bridges (AREA)
Abstract
The utility model discloses the spacing bearing of the main pier of a kind of steel truss arched bridge, comprise upper bracket plate, lower support plate, between upper bracket plate and lower support plate, be provided with spherical crown, described upper bracket plate and spherical crown are rotationally connected, and it is characterized in that: between described spherical crown and described lower support plate, be slidably connected; Along the glide direction of spherical crown, described lower support plate is provided with dismountable the first block and the second block, described the first block and the second block lay respectively at the opposite face of lower support plate, and described spherical crown and described upper bracket plate can slide between the first block and the second block; Between described the first block and upper bracket plate, be provided with multiple dismountable adjusting cushion blocks.The utility model replaces traditional interim tie-rod system and bears horizontal thrust, while being applied to the construction of steel truss arched bridge rigidity, do not affect navigation, degree of safety is high, easy to operate, reduced difficulty of construction, has saved the cost that channel maintenance, anchoring temporarily system and interim tie-rod drop into.
Description
Technical field
The utility model relates to a kind of bridge pad, specifically the spacing bearing of the main pier of steel truss arched bridge.
Background technology
Steel truss arched bridge, after arch rib closes up, before bridge floor rigidity tie-rod closes up, needs to install interim tie-rod, form in advance tied arch system, and pass through the repeatedly interim tie-rod of stretch-draw, and balance impost horizontal thrust, control and the unstressed of rigid tie bar of realizing construction period bridge stress displacement close up.
For avoid too complicated structure and reduce the impact that interim tie-rod is installed bridge deck member as far as possible, interim tie-rod is generally positioned on the some nodes below bridge floor, however, interim tie-rod still can stop the smooth lifting of bridge deck member, affects construction speed; Meanwhile, the interim tie-rod being positioned at below bridge floor has greatly reduced navigational clearance height, and construction period needs expensive channel maintenance expense, requires high bridge site place in waterway classification, even can have influence on the enforcement of bridge scheme; And interim tie-rod need increase anchoring temporarily measure, causes Structural Tectonics complexity, and waste material; Along with the carrying out of construction, also need to be in high-altitude the interim tie-rod of stretch-draw repeatedly, construction control difficulty is large.
The strong point of existing main pier bearing all cannot regulate, and all can not replace interim tie-rod to bear horizontal thrust.
Utility model content
The utility model, for the deficiency of describing in above-mentioned background technology, provides the main pier of a kind of steel truss arched bridge that replaces interim tie-rod to bear horizontal thrust spacing bearing.
The technical solution used in the present invention is: the spacing bearing of the main pier of steel truss arched bridge, comprise upper bracket plate, lower support plate, between upper bracket plate and lower support plate, be provided with spherical crown, described upper bracket plate and spherical crown are rotationally connected, and it is characterized in that: between described spherical crown and described lower support plate, be slidably connected; Along the glide direction of spherical crown, described lower support plate is provided with dismountable the first block and the second block, described the first block and the second block lay respectively at the opposite face of lower support plate, and described spherical crown and described upper bracket plate can slide between the first block and the second block; Between described the first block and upper bracket plate, be provided with multiple dismountable adjusting cushion blocks.
Preferably, described upper bracket plate outside is provided with dismountable gear frame, described gear frame and lower support plate sliding-contact.
Preferably, described lower support plate one side is provided with dismountable lapping plate, described lapping plate and described lower support plate clamping; Described the second block is positioned on lapping plate.
The invention has the beneficial effects as follows: the knotted rope dorsal funciculus system adopting while coordinating bridge construction, the utility model has solved traditional interim tie-rod and has closed up the interim tie-rod of scheme and affect navigational clearance and interim tie-rod anchor measure complex structure and this key technology difficult problem of waste material, can save a large amount of directly engineering cost and channel maintenance expenses, and to greatest extent, reduce the impact of construction on navigation.Be applied to steel truss arched bridge rigidity when construction, do not affect navigation, degree of safety is high, easy to operate, has reduced difficulty of construction, has saved the cost of channel maintenance, anchoring temporarily system and interim tie-rod input.
Brief description of the drawings
Fig. 1 is the cross-sectional schematic of the spacing bearing of the main pier of the present invention
Fig. 2 is the cross-sectional schematic of Fig. 1
Detailed description of the invention
As depicted in figs. 1 and 2, the spacing bearing of main pier, comprises upper bracket plate 1, lower support plate 2, between upper bracket plate 1 and lower support plate 2, is provided with spherical crown 3, and described upper bracket plate 1 is rotationally connected with spherical crown 3; Between described spherical crown 3 and described lower support plate 2, be slidably connected; Along the glide direction of spherical crown 3, described lower support plate 2 is provided with dismountable the first block 4 and the second block 5, described the first block 4 and the second block 5 lay respectively at the opposite face of lower support plate 2, and described spherical crown 3 and described upper bracket plate 1 can slide between the first block 4 and the second block 5; Between described the first block 4 and upper bracket plate 5, be provided with multiple dismountable adjusting cushion blocks 6.In order to prevent that upper bracket plate 1 and spherical crown 3 from departing from, described upper bracket plate 1 outside is provided with dismountable gear frame 7, described gear frame 7 and lower support plate 2 sliding-contacts.Described lower support plate 2 one sides are provided with dismountable lapping plate 8, described lapping plate 8 and described lower support plate 2 clampings; Described the second block 5 is positioned on lapping plate 8.
Utilize the utility model can replace interim tie-rod, adopt the spacing bearing of main pier to substitute the horizontal thrust that the interim tie-rod of tradition bears construction period arch ring.Between the bridge deck installation period after arch rib closes up, do not remove buckle back cable system, to reduce the horizontal thrust of the spacing bearing of main pier.By adjusting the length travel amount of the spacing bearing of main pier, complete the function of interim tie-rod, control and the unstressed of rigid tie bar of realizing construction period bridge stress displacement close up.After rigid tie bar closes up, remove buckle back cable system, finally unload step by step the spacing bearing of main pier, rigid tie bar is stressed, completes system conversion.
After arch rib closes up, during cantilever bridge deck, do not remove knotted rope dorsal funciculus system, continue to use it to share bridge deck deadweight, can greatly reduce impost horizontal thrust, be conducive to pier shaft and basic stress.
Claims (3)
1. the spacing bearing of the main pier of steel truss arched bridge, comprise upper bracket plate, lower support plate, between upper bracket plate and lower support plate, be provided with spherical crown, described upper bracket plate and spherical crown are rotationally connected, and it is characterized in that: between described spherical crown and described lower support plate, be slidably connected; Along the glide direction of spherical crown, described lower support plate is provided with dismountable the first block and the second block, described the first block and the second block lay respectively at the opposite face of lower support plate, and described spherical crown and described upper bracket plate can slide between the first block and the second block; Between described the first block and upper bracket plate, be provided with multiple dismountable adjusting cushion blocks.
2. the spacing bearing of main pier according to claim 1, is characterized in that: described upper bracket plate outside is provided with dismountable gear frame, described gear frame and lower support plate sliding-contact.
3. the spacing bearing of main pier according to claim 1 and 2, is characterized in that: described lower support plate one side is provided with dismountable lapping plate, described lapping plate and described lower support plate clamping; Described the second block is positioned on lapping plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420167314.6U CN204000582U (en) | 2014-04-04 | 2014-04-04 | The spacing bearing of the main pier of steel truss arched bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420167314.6U CN204000582U (en) | 2014-04-04 | 2014-04-04 | The spacing bearing of the main pier of steel truss arched bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204000582U true CN204000582U (en) | 2014-12-10 |
Family
ID=52040608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420167314.6U Expired - Lifetime CN204000582U (en) | 2014-04-04 | 2014-04-04 | The spacing bearing of the main pier of steel truss arched bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204000582U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104831631A (en) * | 2015-04-17 | 2015-08-12 | 中交第二航务工程局有限公司 | An arch bridge rigid tie rod joining method without temporary stay cables |
| CN107313359A (en) * | 2016-04-27 | 2017-11-03 | 成都亚佳工程新技术开发有限公司 | One kind is general to exempt from steel bridge Rotary ball hinge system of weighing |
| CN111576635A (en) * | 2020-04-30 | 2020-08-25 | 中建五局第三建设有限公司 | First-sliding and then-hinging support and connecting method |
-
2014
- 2014-04-04 CN CN201420167314.6U patent/CN204000582U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104831631A (en) * | 2015-04-17 | 2015-08-12 | 中交第二航务工程局有限公司 | An arch bridge rigid tie rod joining method without temporary stay cables |
| CN104831631B (en) * | 2015-04-17 | 2016-06-08 | 中交第二航务工程局有限公司 | A kind of arch bridge rigid tie bar closure method without interim drag-line |
| CN107313359A (en) * | 2016-04-27 | 2017-11-03 | 成都亚佳工程新技术开发有限公司 | One kind is general to exempt from steel bridge Rotary ball hinge system of weighing |
| CN111576635A (en) * | 2020-04-30 | 2020-08-25 | 中建五局第三建设有限公司 | First-sliding and then-hinging support and connecting method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141210 |