CN203684060U - Temporary steel-frame bridge - Google Patents
Temporary steel-frame bridge Download PDFInfo
- Publication number
- CN203684060U CN203684060U CN201320886505.3U CN201320886505U CN203684060U CN 203684060 U CN203684060 U CN 203684060U CN 201320886505 U CN201320886505 U CN 201320886505U CN 203684060 U CN203684060 U CN 203684060U
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- Prior art keywords
- bridge
- steel
- pier
- distribution beam
- longeron
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Abstract
The utility model belongs to the technical field of bridge construction. In order to solve problems of the quick, high-efficiency and safe auxiliary arrangement of required temporary bridge channel before the construction of a main bridge, the utility model provides a temporary steel-frame bridge. The temporary steel-frame bridge comprises pier platforms, and two ends of each pier platform are respectively provided with an approach bridge. The pier platform is provided with a longitudinal beam which is laterally provided with a distribution beam. The distribution beam is provided with a steel plate in a laid manner. Two sides of a bridge surface are respectively provided with a handrail. The interval between the pier platforms is 5m. The longitudinal beam is welded through a 25b I-steel at an interval of 0.5m, and formed through the clamping welding of two side steel plates. The distribution beam is formed by the arrangement of [16 steel channels at an interval of 0.5m. The steel plates are antiskid steel plates, and welded on the distribution beam. The length of the approach bridge is 1.5m, and a concrete culvert pipe is buried in the approach bridge, wherein the diameter of the concrete culvert pipe is 1.0m. The beneficial effects of the utility model are that the bearing capacity is high, the rigidity is high, the carrying, lifting, loading and unloading, assembling and combination are quick and convenient, the temporary steel-frame bridge can be used repeatedly, and the temporary steel-frame bridge can achieve the construction of standardized temporary steel bridges.
Description
Technical field
The utility model belongs to bridge construction technical field, is specifically related to a kind of steelframe suspension bridge.
Background technology
Steel suspension bridge is a suspension bridge of building before master bridge is built, transport material and pedestrian for master bridge construction, will bear the load weight of concrete placement vehicle, automobile and construction material on steel suspension bridge face, additionally arranging of this service aisle should be considered safety, consider again to additionally arrange efficiency, also will consider manufacturing cost.The current passage such as steel support, steel structure bridge stand is after adopting steelframe to take substantially, on passage, additionally arrange steel plate, between steel plate or by electrical pads, connect, this operation handling is installed and is all existed very large potential safety hazard, steel plate deformed after use is also very large, and dismounting is inconvenient especially.
Summary of the invention
The utility model is built front required suspension bridge access issues in order to solve the fast, efficient, safe master bridge that additionally arranges, and a kind of steelframe suspension bridge is provided.
The utility model is realized by following technical scheme: a kind of steelframe suspension bridge, comprise pier, and pier is provided with longeron, on longeron, laterally install distribution beam, lay steel plate in distribution beam, railing is installed in bridge floor both sides, interval 5m between described pier, end pier is outwards provided with access bridge; Described longeron is welded by 25b i iron interval 0.5m, and the weldering of both sides steel plate folder forms; Described distribution beam is that [16 channel-section steel interval 0.5m lay, and described steel plate is checkered plates, is welded in distribution beam; Described access bridge is long is 1.5m, and inside is buried the concrete culvert pipe with great of diameter 1.0m underground.
The pre-buried carrying reinforcing bar that is positioned at the spacer bars of longeron both sides and is positioned at longeron below in described pier top, spacer bars carries out spacing to longeron, guarantee not to be shifted after the long-term use of longeron; Because each longeron can not directly place on the concrete plane of pier top, must carry out suitable arrangement of reinforcement as carrying reinforcing bar to the thick part of pier top concrete 60cm, guaranteeing longeron is placed on pier, end face concrete is not caused to damage, end face also can bear corresponding weight.
Longeron adopts between the long i iron of 9m and connects postwelding, and the weldering of both sides steel plate folder, notes the joint that staggers when longeron is arranged, at least keep being spaced.Before each pier construction, must guarantee that basis is on not sedimentation of hard basis, adopt C15 or C20 label concrete match ratio φ 8, φ 12 reinforcing bars to build.In the construction of each pier, by pre-buried φ 25 reinforcing bars that arrange of i iron size, i iron group is carried out spacing at pier top, after guaranteeing that i iron is long-term and using, be not shifted.Each i iron can not directly place on the concrete plane of pier top, must carry out suitable arrangement of reinforcement (considering to adopt φ 12, φ 20 reinforcing bars) to the thick part of pier top concrete 60cm, guaranteeing i iron is placed on pier, end face concrete is not caused to damage, end face also can bear corresponding weight.
The long 15m of suspension bridge, the long 3m of access bridge that two ends are set, overall length 18m.This bridge prolongation enters the original rural pedestrian's sidewalk in massif limit, enters constructing tunnel place in this.According to the length of river course and bridge, level bridges is established 4 piers, and wherein 1
#, 2
#pier in main stem, 0
#, 3
#platform is positioned at limit, river course.0
#, 3
#platform adopts the access bridge of burying 1.0m concrete culvert pipe with great underground to cross riverbed respectively with in the space of the 1.5m scope on limit, river course, also as emergent flood discharge passage.It is cross a river longeron that main span arranges 13 25b i iron, and the employing of transverse distribution beam [16 channel-section steels, spacing is 0.5m, misorientation connects each channel-section steel, the thick checkered plates of upper berth 8mm, bridge floor is wide is 6.5m, considers that People's Bank of China needs, and in panel both sides, security guardrail is set.
When i iron bond pads, weld seam must be full, if batten plate can not be close to i iron face, can suitably be welded with part batten plate.The necessary solid welding of checkered plates is on channel-section steel, in case the displacement while driving that is shifted.Level bridges speed limit 5Km/h, 50 tons of freight weight limits.Bridge floor both sides arrange security guardrail, and rail support solid welding is on i iron, and railing is brushed red white warning coloration simultaneously.
After the pier stud construction of steelframe suspension bridge, synchronously can carry out cutting and the welding of the single-pieces such as i iron, steel plate, channel-section steel, the pier stud concrete that middle this time has constructed just can wait by force, and after i iron sets up, strive for that the fastest time carries out connection and the reinforcing of overall steel bridge formation, complete vehicle and just can pass through, level bridges is after engineering construction is complete simultaneously, can remove it, this will save a part of cost.
For duration anxiety, the current suspension bridge of constructing of being eager, level bridges is a kind of suspension bridge that saves time, economizes material most, similarly the construction of engineering suspension bridge can be used for reference reference.The controlled heavy difficult point engineering of duration that tunnel of general canopy is vast railway, for completing early sidewalk dredging, vehicle pass-through, faces and builds the construction of engineering and every preparation of tunnel construction for hole, has greatly saved time and effect.Face like this duration anxiety for tunnel of similar general canopy, the current suspension bridge of constructing of being eager, level bridges be save time most, economize material a kind of suspension bridge.
Effective effect of the present utility model is: bearing capacity is large, and rigidity is strong, and carrying, lifting, handling, assembly are quick and convenient, can repeatedly reuse, and can realize the construction of standardization steel suspension bridge.
Brief description of the drawings
Fig. 1 is the utility model skiagraph; Fig. 2 is the utility model cross-sectional drawing.
In figure: 1-pier; 2-longeron; 3-distribution beam; 4-steel plate; 5-railing; 6-access bridge; 7-concrete culvert pipe with great.
Detailed description of the invention
Taking four temporary bridge for construction of marking a tunnel 2# inclined shaft sidewalk of general canopies before vast Railways Stations as example:
As shown in Figure 1, a kind of steelframe suspension bridge, comprises pier 1, and pier 1 is provided with longeron 2, laterally installs distribution beam 3 on longeron 2, lays steel plate 4 in distribution beam 3, and railing 5 is installed in bridge floor both sides, interval 5m between described pier, and end pier 1 is outwards provided with access bridge 6; Described longeron 2 is welded by 25b i iron interval 0.5m, and the weldering of both sides steel plate folder forms; Described distribution beam 3 is that [16 channel-section steel interval 0.5m lay, and described steel plate 4 is checkered plates, is welded in distribution beam 3; Described access bridge 6 is long is 1.5m, and inside is buried the concrete culvert pipe with great 7 of diameter 1.0m underground.
Longeron adopts between the long i iron of 9m and connects postwelding, and the weldering of both sides steel plate folder, notes the joint that staggers when longeron is arranged, at least keep being spaced.Before each pier construction, must guarantee that basis is on not sedimentation of hard basis, adopt C15 or C20 label concrete match ratio φ 8, φ 12 reinforcing bars to build.In the construction of each pier, by pre-buried φ 25 reinforcing bars that arrange of i iron size, i iron group is carried out spacing at pier top, after guaranteeing that i iron is long-term and using, be not shifted.Each i iron can not directly place on the concrete plane of pier top, must carry out suitable arrangement of reinforcement (considering to adopt φ 12, φ 20 reinforcing bars) to the thick part of pier top concrete 60cm, guaranteeing i iron is placed on pier, end face concrete is not caused to damage, end face also can bear corresponding weight.
The long 15m of suspension bridge, the long 3m of access bridge that two ends are set, overall length 18m.This bridge prolongation enters the original rural pedestrian's sidewalk in massif limit, enters constructing tunnel place in this.According to the length of river course and bridge, level bridges is established 4 piers, and wherein 1
#, 2
#pier in main stem, 0
#, 3
#platform is positioned at limit, river course.0
#, 3
#platform adopts the access bridge of burying 1.0m concrete culvert pipe with great underground to cross riverbed respectively with in the space of the 1.5m scope on limit, river course, also as emergent flood discharge passage.It is cross a river longeron that main span arranges 13 25b i iron, and the employing of transverse distribution beam [16 channel-section steels, spacing is 0.5m, misorientation connects each channel-section steel, the thick checkered plates of upper berth 8mm, bridge floor is wide is 6.5m, considers that People's Bank of China needs, and in panel both sides, security guardrail is set.
When i iron bond pads, weld seam must be full, if batten plate can not be close to i iron face, can suitably be welded with part batten plate.The necessary solid welding of checkered plates is on channel-section steel, in case the displacement while driving that is shifted.Level bridges speed limit 5Km/h, 50 tons of freight weight limits.Bridge floor both sides arrange security guardrail, and rail support solid welding is on i iron, and railing is brushed red white warning coloration simultaneously.
Level bridges load capacity calculation:
Longeron is made up of 13 I25b i iron, because of push up and bottom with shaped steel fixed, easy for calculating, each i iron axes of inertia are not done translation, 13 × I25b can make overall calculation, the longitudinal clear span of bridge get 6m calculate.Longitudinal every meter of longeron and bridge floor deadweight: 42.0 × 13+17.23 × 6.5 × 2+62.8 × 6.5=1178.19kg, get q=1.3t/m.Consider concrete delivery truck deadweight 20t, transport concrete 10m
3, meter 25t, considers the load-carryings such as impact coefficient 1.2 and other people are manageed it, small machine, suspension bridge is pressed 60t LOAD FOR.Interrelated geometrical parameters: I25b shaped steel geometrical property: I
x=5284.0cm
4, W
x=422.7cm
3, g=42.0kg/m; [16 channel-section steel geometrical property: g=17.23kg/m; The thick checkered plates geometrical property of 8mm: g=62.8kg/m.
Strength checking: I25b i iron span centre maximal bending moment: M=Mp+Mg, Mq=1/8qL
2=1/8 × 1.38 × 6
2=6.3t.m; Mp=30 × 1.65=49.5t.m; Stress б=(Mq+Mp)/W=55.8 × 10
4/ (13 × 726 × 10
-6)=59.12Mpa, <[б]=170Mpa, checking computations show safe, available.
Rigidity checking (across footpath 6m): f=[5ql
3/ 384EI+2 × 30 × 10
4× 1.65 × (3 × 6
2-4 × 1.65
2)/(48 EI)]/13=8mm <L/400=15mm, checking computations show safety.
Sluicing basal area is calculated: according to field investigation, in conjunction with the understanding to data such as the local hydrology, steelframe suspension bridge is being built the wide about 18m of place's river surface, the existing high 1.0m of river face of river erosion line aspect ratio in flood season, and the existing high 1.5m of the water surface of existing river levee wall aspect ratio, suspension bridge main span sluices to guard against and is highly decided to be 2.5m.Therefore runoff section broken area S=18 × 1=18m
2; Consider flow rate of water flow, it is multiplied by 1.5 multiplying factors, have S
runoff=18 × 1.5=27m
2; Steelframe suspension bridge earial drainage cross-sectional area is: S
suspension bridge=S
water releasing culvert pipe+ S
main span=3.14 × 0.5 × 0.5 × 2+(5-1) × 3 × 2.5=30.1m
2>27m
2therefore the utility model can meet earial drainage requirement in flood season.
After the pier stud construction of steelframe suspension bridge, synchronously can carry out cutting and the welding of the single-pieces such as i iron, steel plate, channel-section steel, the pier stud concrete that middle this time has constructed just can wait by force, and after i iron sets up, strive for that the fastest time carries out connection and the reinforcing of overall steel bridge formation, complete vehicle and just can pass through, level bridges is after engineering construction is complete simultaneously, can remove it, this will save a part of cost.
For duration anxiety, the current suspension bridge of constructing of being eager, level bridges is a kind of suspension bridge that saves time, economizes material most, similarly the construction of engineering suspension bridge can be used for reference reference.The controlled heavy difficult point engineering of duration that tunnel of general canopy is vast railway, for completing early sidewalk dredging, vehicle pass-through, faces and builds the construction of engineering and every preparation of tunnel construction for hole, has greatly saved time and effect.Face like this duration anxiety for tunnel of similar general canopy, the current suspension bridge of constructing of being eager, level bridges be save time most, economize material a kind of suspension bridge.
Claims (2)
1. a steelframe suspension bridge, it is characterized in that: comprise pier (1), pier (1) is provided with longeron (2), on longeron (2), laterally install distribution beam (3), the upper steel plate (4) of laying of distribution beam (3), railing (5) is installed in bridge floor both sides, interval 5m between described pier, and end pier (1) is outwards provided with access bridge (6); Described longeron (2) is welded by 25b i iron interval 0.5m, and the weldering of both sides steel plate folder forms; Described distribution beam (3) is that [16 channel-section steel interval 0.5m lay, and described steel plate (4) is checkered plates, is welded in distribution beam (3); Described access bridge (6) is long is 1.5m, and inside is buried the concrete culvert pipe with great (7) of diameter 1.0m underground.
2. steelframe suspension bridge according to claim 1, is characterized in that the pre-buried carrying reinforcing bar that is positioned at the spacer bars of longeron both sides and is positioned at longeron below in pier (1) top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320886505.3U CN203684060U (en) | 2013-12-31 | 2013-12-31 | Temporary steel-frame bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320886505.3U CN203684060U (en) | 2013-12-31 | 2013-12-31 | Temporary steel-frame bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203684060U true CN203684060U (en) | 2014-07-02 |
Family
ID=51005983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320886505.3U Expired - Fee Related CN203684060U (en) | 2013-12-31 | 2013-12-31 | Temporary steel-frame bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203684060U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104674643A (en) * | 2015-01-29 | 2015-06-03 | 四川路航建设工程有限责任公司 | Prestressed steel truss bridge |
| CN105040572A (en) * | 2015-07-01 | 2015-11-11 | 镇海建设集团有限公司 | Simple steel slab bridge |
| CN109112960A (en) * | 2018-09-04 | 2019-01-01 | 中国二十冶集团有限公司 | Simple clad steel suspension bridge floor system and construction method |
| CN113481824A (en) * | 2021-07-20 | 2021-10-08 | 河南东恒市政工程有限公司 | Simple bridge easy to construct |
-
2013
- 2013-12-31 CN CN201320886505.3U patent/CN203684060U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104674643A (en) * | 2015-01-29 | 2015-06-03 | 四川路航建设工程有限责任公司 | Prestressed steel truss bridge |
| CN105040572A (en) * | 2015-07-01 | 2015-11-11 | 镇海建设集团有限公司 | Simple steel slab bridge |
| CN105040572B (en) * | 2015-07-01 | 2016-09-14 | 镇海建设集团有限公司 | A kind of Simple steel slab bridge |
| CN109112960A (en) * | 2018-09-04 | 2019-01-01 | 中国二十冶集团有限公司 | Simple clad steel suspension bridge floor system and construction method |
| CN113481824A (en) * | 2021-07-20 | 2021-10-08 | 河南东恒市政工程有限公司 | Simple bridge easy to construct |
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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: 20140702 Termination date: 20211231 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |