CN205116026U - Large -span is super wide main arch of formula arched bridge circle formwork system on an empty stomach - Google Patents
Large -span is super wide main arch of formula arched bridge circle formwork system on an empty stomach Download PDFInfo
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- CN205116026U CN205116026U CN201520817516.5U CN201520817516U CN205116026U CN 205116026 U CN205116026 U CN 205116026U CN 201520817516 U CN201520817516 U CN 201520817516U CN 205116026 U CN205116026 U CN 205116026U
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- steel pipe
- main arch
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- shellfish thunder
- span
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Abstract
The utility model relates to a large -span is super wide main arch of formula arched bridge circle formwork system on an empty stomach mainly buckles formula steel -tube framework (13), adjustable U type top by recoverable steel pipe stub (4), concrete foundation roof beam (5), beiLei beam post, bowl and asks (14), horizontal the lumps of wood (15), vertical arc two limb steel pipe (16), horizontal lumber skid (17), main arch to enclose die block board (18) and constitute, recoverable steel pipe stub (4) upper end is stretched into in concrete foundation roof beam (5) to adopt disrance sleeve (6) isolated, main arch circle die block board (18) is laid on horizontal lumber skid (17), sets gradually vertical arc two limb steel pipe (16) from top to bottom and supports in adjustable U type top support (14) with horizontal the lumps of wood (15), horizontal the lumps of wood (15). The utility model relates to a large -span formwork system of the super wide main arch of formula arched bridge circle on an empty stomach can ensure that the curve shape of main arch circle is stable for construction speed reduces engineering cost usefulness, gains better technological economic benefits.
Description
Technical field
The utility model relates to a kind of large span spandrel arch bridge ultra-wide main arch ring formwork system, belongs to bridge engineering field, is applicable to encircle the formwork construction of the large span ultra-wide spandrel arch bridge main arch ring under the ravines and guillies criss-cross condition of lower earth's surface.
Background technology
Arch bridge is a kind of common Bridge Types with long developing history, with linear, the good stress performance of its grace and excellent span ability, is just being widely used in each bridge engineering.Particularly under the background of national Implementation of Western Development, the infrastructure such as speedway, high-speed railway is built in a large number, increasing arch bridge is subject to the favor of engineer and owner as Oil pipeline, and is successfully applied in Practical Project, obtains good economical, societal benefits.
Arch bridge main arch ring cast-in-situ construction method trestle construction method and cantilever-construction, the former is applicable to the arch bridge main arch ring construction of general span, and under the span of arch, ground is more smooth, and the latter is applicable to the arch bridge main arch ring construction of super-span.For the main arch ring construction of the large span ultra-wide arch bridge under the geomorphological environment that western ravines and guillies criss-cross, valley are deep, cantilever-construction construction requirement is high, control measure are strict, less economical, and the full hall scaffold formwork system that rack construction method often adopts has higher requirements to the lower landforms of arch, the earth's surface that the gradient is larger adds scaffold building difficulty, and the large span of arch bridge and ultra-wide condition will significantly increase the use amount of scaffold.
Utility model content
The purpose of this utility model is form bracing system Problems existing in the main arch ring construction for large span ultra-wide spandrel arch bridge, a kind of formwork system of large span spandrel arch bridge ultra-wide main arch ring is provided, the portal framed structure that this formwork system adopts bottom beret truss assembling to be formed, top bowl fastening type steel pipe scaffold are as the braced structures of main arch ring template, and entirety is bearing on recyclable steel pipe stub and concrete foundation beam.
In order to realize above-mentioned technical purpose, the utility model have employed following technical scheme:
A kind of large span spandrel arch bridge main arch ring formwork system, it is characterized in that, this formwork system is primarily of recyclable steel pipe stub (4), concrete foundation beam (5), Bailey beam post, bowl fastening type steel pipe frame (13), adjustable U-shaped jacking (14), the horizontal lumps of wood (15), the two limb steel pipe (16) of longitudinal arc, horizontal chock (17), main arch ring soffit formwork (18) composition; Recyclable steel pipe stub (4) upper end is stretched in concrete foundation beam (5), and adopts disrance sleeve (6) isolated; Main arch ring soffit formwork (18) is laid on horizontal chock (17), and set gradually the two limb steel pipe (16) of longitudinal arc and the horizontal lumps of wood (15) from top to bottom, the horizontal lumps of wood (15) is supported on adjustable U-shaped jacking (14).
After construction terminates dismantling concrete grade beam, directly can extract recyclable steel pipe stub.
Further, described Bailey beam post comprises shellfish thunder cross wall, shellfish thunder platform, upper end shellfish thunder cross wall and upper end shellfish thunder platform, shellfish thunder cross wall bottom is fixed by the reserved bolt on concrete foundation beam, close to arch springing place, shellfish thunder platform is being set, upper end shellfish thunder cross wall and upper end shellfish thunder platform are set at arch ring span centre, form overall shellfish thunder portal framed structure.
The supporting and fixing of described bowl fastening type steel pipe frame, on platform steel plate, forms crisscross steel pipe scaffold, and arranges brace raising resistance to overturning, and bowl fastening type steel pipe frame (13) top arranges adjustable U-shaped jacking (14).
The utility model has following characteristics and beneficial effect:
(1) adopt the bearing structure of recyclable steel pipe stub and concrete foundation beam form bracing system as a whole, bearing stability is good, and isolated by sleeve pipe between the two, after convenient construction, steel pipe stub extracts recycling;
(2) beret truss is standardized structural element, forms portal-framed structure by assembling, and assembling speed of application is fast, structure stress good stability, good to the lower landform compliance of arch;
(3) bowl fastening type steel pipe scaffold is supported on shellfish thunder platform, by the adjustment of the U-shaped jacking height on top, facilitates the formation of main arch ring template arc.
Accompanying drawing explanation
Fig. 1 is large span spandrel arch bridge ultra-wide main arch ring formwork system structural representation;
Fig. 2 is A connection detail in large span spandrel arch bridge ultra-wide main arch ring formwork system structure.
In figure: 1-segmentation main arch ring, 2-interval trough, 3-main arch ring pier stud, the recyclable steel pipe stub of 4-, 5-concrete foundation beam, 6-disrance sleeve, 7-reserves bolt, 8-shellfish thunder cross wall, 9-shellfish thunder platform, 10-platform steel plate, 11-upper end shellfish thunder cross wall, 12-upper end shellfish thunder platform, 13-bowl fastening type steel pipe frame, 14-adjustable U-shaped jacking, the horizontal lumps of wood of 15-, the two limb steel pipe of the longitudinal arc of 16-, the horizontal chock of 17-, 18-main arch ring soffit formwork, 19-original ground.
Detailed description of the invention
Be described in further detail the utility model by embodiment below in conjunction with accompanying drawing, following examples are not limited to following examples to explanation of the present utility model.
Fig. 1 is large span spandrel arch bridge ultra-wide main arch ring formwork system structural representation, Fig. 2 is A connection detail in large span spandrel arch bridge ultra-wide main arch ring formwork system structure, with reference to shown in Fig. 1 ~ 2, main arch ring construction formwork support system comprises recyclable steel pipe stub 4, concrete foundation beam 5, Bailey beam post, bowl fastening type steel pipe frame 13, adjustable U-shaped jacking 14, the horizontal lumps of wood 15, longitudinal arc two limb steel pipe 16, horizontal chock 17, main arch ring soffit formworks 18 etc.Bailey beam post comprises shellfish thunder cross wall 8, shellfish thunder platform 9, upper end shellfish thunder cross wall 11 and upper end shellfish thunder platform 12, shellfish thunder cross wall 8 bottom is fixed by the reserved bolt 7 on concrete foundation beam 5, close to arch springing place, shellfish thunder platform 9 is being set, upper end shellfish thunder cross wall 11 and upper end shellfish thunder platform 12 are set at arch ring span centre, form overall shellfish thunder portal framed structure.
On hold spandrel arch bridge main arch ring 1 span 40m, thickness 0.5m, wide 30m, vault to the vertical height 7.6m of arch springing, ratio of rise to span 0.19.Steel pipe stub 4 diameter 1.0m, wall thickness 16mm, length 3.0 ~ 5.0m, horizontal spacing 2.5m, 0.5m in concrete foundation beam 5 is stretched in its upper end, and puts the thick PVC disrance sleeve 6 of 3mm.Concrete foundation beam 5 sectional dimension is 1.5 × 1.0m, length 34m, the grit bed course that bottom backfill 0.3m is thick, longitudinally arranges 4 roads along the span of arch.
Beret truss dimensions is 3.0m × 1.5m, assembled formation portal-framed structure, and its lower end is placed on concrete foundation beam 5, and adopts reserved bolt 7 to fix, and its upper end steel plate temporary construction platform is apart from arch springing 1.5m, and in the middle part of the span of arch, plate platform is apart from span centre bottom 2.5m.Scaffold set up by operation platform, and adopt the bowl fastening type steel pipe support 13 of Ф 48 × 3.0mm, vertical horizontal spacing is 0.6m, the vertical step pitch 1.2m of cross bar; Adjustable U-shaped jacking 14 is placed the horizontal lumps of wood 15 of 140 × 140mm; Place the two limb steel pipe 16 of the longitudinal arc of Ф 48 × 3.5mm above, horizontal spacing 0.3m; The horizontal chock 17, longitudinal pitch 0.3m of layout 100 × 140mm on it; Lay the bamboo slab rubber of thick 18mm as main arch ring soffit formwork 18, note sealant tape glues in bamboo slab rubber lap-joint.
Claims (3)
1. a large span spandrel arch bridge ultra-wide main arch ring formwork system, it is characterized in that, this formwork system is primarily of recyclable steel pipe stub (4), concrete foundation beam (5), Bailey beam post, bowl fastening type steel pipe frame (13), adjustable U-shaped jacking (14), the horizontal lumps of wood (15), the two limb steel pipe (16) of longitudinal arc, horizontal chock (17), main arch ring soffit formwork (18) composition; Recyclable steel pipe stub (4) upper end is stretched in concrete foundation beam (5), and adopts disrance sleeve (6) isolated; Main arch ring soffit formwork (18) is laid on horizontal chock (17), and set gradually the two limb steel pipe (16) of longitudinal arc and the horizontal lumps of wood (15) from top to bottom, the horizontal lumps of wood (15) is supported on adjustable U-shaped jacking (14).
2. large span spandrel arch bridge ultra-wide main arch ring formwork system according to claim 1, it is characterized in that, described Bailey beam post comprises shellfish thunder cross wall (8), shellfish thunder platform (9), upper end shellfish thunder cross wall (11) and upper end shellfish thunder platform (12), shellfish thunder cross wall (8) bottom is fixed by the reserved bolt (7) on concrete foundation beam (5), close to arch springing place, shellfish thunder platform (9) is being set, upper end shellfish thunder cross wall (11) and upper end shellfish thunder platform (12) are set at arch ring span centre, form overall shellfish thunder portal framed structure.
3. large span spandrel arch bridge ultra-wide main arch ring formwork system according to claim 1, it is characterized in that, the supporting and fixing of described bowl fastening type steel pipe frame (13) is on platform steel plate (10), form crisscross steel pipe scaffold, and brace raising resistance to overturning is set, bowl fastening type steel pipe frame (13) top arranges adjustable U-shaped jacking (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520817516.5U CN205116026U (en) | 2015-10-21 | 2015-10-21 | Large -span is super wide main arch of formula arched bridge circle formwork system on an empty stomach |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520817516.5U CN205116026U (en) | 2015-10-21 | 2015-10-21 | Large -span is super wide main arch of formula arched bridge circle formwork system on an empty stomach |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205116026U true CN205116026U (en) | 2016-03-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520817516.5U Expired - Fee Related CN205116026U (en) | 2015-10-21 | 2015-10-21 | Large -span is super wide main arch of formula arched bridge circle formwork system on an empty stomach |
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| CN (1) | CN205116026U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114717952A (en) * | 2022-03-18 | 2022-07-08 | 中庆建设有限责任公司 | Multi-chamber arch ring assembled formwork and construction method |
-
2015
- 2015-10-21 CN CN201520817516.5U patent/CN205116026U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114717952A (en) * | 2022-03-18 | 2022-07-08 | 中庆建设有限责任公司 | Multi-chamber arch ring assembled formwork and construction method |
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Legal Events
| 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: 20160330 Termination date: 20201021 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |