CN208792138U - A kind of steel suspension bridge - Google Patents
A kind of steel suspension bridge Download PDFInfo
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- CN208792138U CN208792138U CN201821439666.7U CN201821439666U CN208792138U CN 208792138 U CN208792138 U CN 208792138U CN 201821439666 U CN201821439666 U CN 201821439666U CN 208792138 U CN208792138 U CN 208792138U
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- suspension bridge
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- military beam
- steel suspension
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Abstract
The utility model discloses a kind of steel suspension bridges, are related to field of engineering technology.One specific embodiment of the utility model includes: cast-in-situ bored pile apical cap beam (13), military beam and road surface system (12)；The both ends of the military beam are end framework (1), are connected with a piece of above standard triangle (2) between the end framework (1) at both ends in turn；And the military beam is fixed by the end framework (1) and the cast-in-situ bored pile apical cap beam (13) at its both ends；It is provided on the top boom of the military beam road surface system (12), the road surface system (12) is successively equipped with plank, rubber slab and steel plate from the bottom to top.The features such as steel suspension bridge portable construction, quick, adaptable assembly.
Description
Technical field
The utility model relates to field of engineering technology more particularly to a kind of steel suspension bridges.
Background technique
Steel suspension bridge is typically to solving the problems, such as that temporary traffic is the trestle set, in order to vehicles and pedestrians.It is existing
In technology, beret slice is mostly used and structure that girder is linked together.But in implementation process, discovery the prior art exist with
Lower problem: since steel suspension bridge is mostly that interim design is built, the prior art is unable to satisfy the fast transportation of steel suspension bridge, splicing and quickly
The demand withdrawn；Moreover, it is very inconvenient that steel suspension bridge is transported operating location.
Summary of the invention
In view of this, the utility model embodiment provides a kind of steel suspension bridge, portable construction, assembly are quick, adaptable,
Personnel's investment and the equipment investment in work progress can be reduced, there is at low cost, short construction period and remarkable in economical benefits
The advantages of.
To achieve the above object, according to the one aspect of the utility model embodiment, a kind of steel suspension bridge is provided.
The steel suspension bridge of the utility model embodiment includes: cast-in-situ bored pile apical cap beam, military beam and road surface system；It is described military
The both ends of beam are end framework, are connected with a piece of above standard triangle between the end framework at both ends in turn；And the military beam
It is fixed by the end framework and the cast-in-situ bored pile apical cap beam at its both ends；It is provided on the top boom of the military beam
Road surface system, the road surface system are successively equipped with plank, rubber slab and steel plate from the bottom to top.
Optionally, the cast-in-situ bored pile apical cap beam is the pre-buried use in top of L-type and the cast-in-situ bored pile apical cap beam
In the bolt of the end framework of fixed military beam.
Optionally, the antiskid plate of welding is equipped on the steel plate.
Optionally, the military beam is the military beam of single-layer type, and the end framework is the end 2m framework.
Optionally, 5 Internal Force Monitoring points are disposed on the military beam, be separately positioned on the military beam perpendicular compression bar,
Top boom, diagonal web member are reinforced in triangle on vertical bar and lower boom.
Optionally, the thickness of the plank, rubber slab and steel plate is respectively 50mm, 10mm, 20mm, the thickness of the antiskid plate
Degree is 4mm.
One embodiment in above-mentioned utility model has the following advantages that or the utility model has the advantages that by military beam as main
The component for bearing road vehicles load has the characteristics that portable construction, assembly are quick, adaptable.In turn, it solves existing
Fast transportation, splicing and quick the problem of withdrawing demand of steel suspension bridge are unable to satisfy in technology.Moreover, convenient for steel suspension bridge is transported
To operating location.Meanwhile work progress is convenient, reduces the investment of personnel, equipment, have at low cost, short construction period and
The advantages of remarkable in economical benefits.
Further effect possessed by above-mentioned non-usual optional way adds hereinafter in conjunction with specific embodiment
With explanation.
Detailed description of the invention
Attached drawing is not constituteed improper limits to the present invention for more fully understanding the utility model.Wherein:
Fig. 1 is the schematic diagram according to the steel suspension bridge of the utility model embodiment；
Fig. 2 is the schematic diagram according to the military beam of the utility model embodiment；
Fig. 3 is the schematic diagram according to the L-type crown beam of the utility model embodiment；
Fig. 4 is the schematic diagram according to the standard triangle of the utility model embodiment；
Fig. 5 is the schematic diagram according to the steel suspension bridge for being equipped with Internal Force Monitoring point of the utility model embodiment；
In figure,
The end 1- framework；2- standard triangle；3- horizontal-associate sleeve bolt；The end 4- framework bracing；The end 5- chord member；6- diagonal web member connection
Clone；7- lower boom bracing；8- standard chord member；9- horizontal-associate sleeve bolt；The end 10- chord member；11a, 11b,11c,11d,11e-
Surface strain meter；The road surface 12- system；13- cast-in-situ bored pile apical cap beam；14- standard paragraphs rectangle crown beam.
Specific embodiment
It explains below in conjunction with exemplary embodiment of the attached drawing to the utility model, implements including the utility model
The various details of example should think them only exemplary to help understanding.Therefore, those of ordinary skill in the art answer
It, can be with various changes and modifications are made to the embodiments described herein, without departing from the scope of the utility model when recognizing
And spirit.Equally, for clarity and conciseness, descriptions of well-known functions and structures are omitted from the following description.
Fig. 1 is the schematic diagram according to the steel suspension bridge of the utility model embodiment；Fig. 2 is according to the utility model embodiment
The schematic diagram of military beam；Fig. 3 is the schematic diagram according to the L-type crown beam of the utility model embodiment；Fig. 4 is practical new according to this
The schematic diagram of the standard triangle of type embodiment；Fig. 5 be according to the steel for being equipped with Internal Force Monitoring point of the utility model embodiment just
The schematic diagram of bridge.
As shown in Fig. 1 and Fig. 2, Fig. 4, the steel suspension bridge of the utility model embodiment specifically includes that cast-in-situ bored pile apical cap beam
13, military beam and road surface are 12；The both ends of military beam are end framework 1, are connected in turn more than a piece of between the end framework 1 at both ends
Standard triangle 2；And military beam is fixed by the end framework 1 and cast-in-situ bored pile apical cap beam 13 at its both ends.And
Standard paragraphs rectangle crown beam 14 is embedded with below cast-in-situ bored pile apical cap beam 13.Road surface system is provided on the top boom of military beam
12, road surface is 12 to be successively equipped with plank, rubber slab and steel plate from the bottom to top.Military beam is the military beam of single-layer type,
End framework 1 is the end 2m framework.
Military beam be a kind of full weldering framework, pin joint assembling, the multiple-piece of single or double layer, open bridge floors system reassembling type on
Hold steel truss girder.The utility model embodiment uses single layer structure, selects reinforced single layer military beam (by reinforcement tripod
It is formed with auxiliary end framework combinations).The main truss of type-64 military beam (code name: 102-1) includes standard triangle (code name
1.), end framework (code name is 2.), standard chord member (code name is 3.), end chord member (code name is 4.) and inclined chord (code name is 5.) and strut (generation
) etc. number 6. six kinds of basic building blocks and steel pin, support impeach two kinds of node connections such as pin with composition, can be assembled into and meet national standard
The single-layer type or two-layer equation trusses for the railway standard span that (GB904-65) changes by 4 meters.Reinforced type-64 military beam
(code name: 102-2) be main truss reinforce triangle (code name 21) and reinforcement chord member (code name 23) two kinds of components respectively instead of
Standard triangle (code name is 1.) and standard chord member (code name is 3.), remaining component and node connection part and type-64 military beam are complete
It is identical, mainly to adapt to biggish span.
As shown in Fig. 2, the military beam of the utility model embodiment specifically includes that end framework 1, standard triangle 2, horizontal-associate casing
Bolt 3, end framework bracing 4, end chord member 5, diagonal web member bracing 6, lower boom bracing 7, standard chord member 8, horizontal-associate casing spiral shell
Bolt 9, end chord member 10.The accessory of military beam be it is general, share ten one kind.Be divided into four classes by purposes: component is coupled pin and includes
Steel pin and two kinds of strut pin；Bracing accessory include horizontal-associate sleeve bolt, bracing channel steel, No. two U-bolts, No. three it is U-shaped
Four kinds of bolt；Bridge deck accessory includes panel, No.1 U-bolt, pressing plate, four kinds of follower bolt；For support, every set support packet
Include pre-buried positioning bolt, positioning keeper plate of steel and coupling bolt；Steel pin purposes is the connection of upper and lower main chord component node, horizontal-associate casing
Bolt is mainly coupled to the chord member between each main truss, and bracing channel steel is mainly that plane and section are coupled rod piece.The U-shaped spiral shell of No.1
Bolt is coupled panel and main truss top boom, and No. two U-bolts are coupled bracing channel steel and main truss lower boom and strut.No. three U-shaped spiral shells
Bolt is coupled bracing channel steel and web member (including strut).
Progress in place is stacked in being assembled in for military beam, and first by levelling of the land, pad puts 10* at military beam assembly node
The 10cm lumps of wood, lumps of wood spacing is consistent with each node spacing of military beam, two lumps of wood placed side by side at each node, and uses level
Levelling is carried out, guarantees that lumps of wood absolute altitude is consistent, deviation controls within 3mm.It will need the assembled end 2m framework, two panels standard triangle
It is placed on the lumps of wood by crane tune, pin hole is aligned one by one, installs steel pin fixed hole position after hole location alignment.First installation end structure
Then frame and standard triangle, then installation end chord member install standard triangle, finally install horizontal chord member, monolithic military beam assembly is complete
At.The axis and level of assembled sheet of military beam are checked, assembled error can transport scene to after meeting code requirement
Installed specifically, at the military beam assembly node in smooth place, pad puts the lumps of wood of 10*10cm, lumps of wood spacing with
Military beam assembly node spacing is consistent.Then, two lumps of wood placed side by side at each node, and levelling is carried out with level.
And assembled end framework, standard triangle will be needed to be placed on the lumps of wood by crane tune, pin hole is aligned one by one, hole location pair
Steel pin fixed hole position is installed after standard.Assembled end framework and standard triangle and installation end chord member.Also, assembled standard triangle,
And the horizontal chord member of installation.It in conjunction with six or four girder constructions, is analyzed according to planar structure, calculates and use PKPM software steel construction mould
Block calculates six or four beam planar structure of single layer.In the utility model embodiment, if six or four beams self weight system calculates automatically,
It is 1.0KN/m that bridge deck, which is self-possessed according to the half value of aforementioned load, and wagon load is 7 six according to a lorry passage width
Four beam widths, areal model load are 1000/14=71KN, and load is applied to span centre six or four beam element, three nodes, consider one
Fixed safety coefficient, each node are further applied load as 28KN.
As shown in figure 3, cast-in-situ bored pile apical cap beam 13 is L-type, and then improve the stability of structure.And drilling fills
The top for infusing stake top crown beam 13 is pre-buried for fixing the bolt of the end framework of military beam.Setting is tied the supporting of foundation pit periphery (going along with sb. to guard him)
Reinforced concrete continuous beam at the top of structure (mostly stake and wall), effect is one is be connected to together all pile foundations (as drilled
Bored concrete pile, rotary digging stake etc.), prevent foundation pit (vertical shaft) top edge from generating collapsing, the second is undertaking bracing members (or steel by bracket
Reinforced concrete support) level bear against power and vertical shear, crown beam must cut the laitance etc. of stake top when constructing.
The antiskid plate of welding is equipped on steel plate.The thickness of plank, rubber slab and steel plate be respectively 50mm, 10mm,
20mm, antiskid plate with a thickness of 4mm.
In an embodiment of the present invention, Internal Force Monitoring selects surface strain meter to carry out Internal Force Monitoring, for example, 57 type of EBJ-
Surface strain meter.Moreover, be disposed with 5 Internal Force Monitoring points on military beam, be separately positioned on the top boom of military beam, lower boom,
Reinforce on vertical bar in triangle, perpendicular compression bar and diagonal web member.As shown in figure 5, on 5 Internal Force Monitoring points mounting surface strain gauge 11a,
11b, 11c, 11d, 11e, i.e. surface strain meter 11a, 11b, 11c, 11d, 11e are separately positioned on the perpendicular compression bar of military beam, wind up
Bar, diagonal web member are reinforced in triangle on vertical bar and lower boom.During mounting surface strain gauge: putting on standard when 1. installing
Plug, both ends lateral surface must be flushed with mounting rack lateral surface, and then screw up with a wrench two M10 screws.2. standard will be installed
The mounting rack of plug is pasted onto bracing members surface with high-strength special glue.It first has to derust military beam basal plane when stickup and clear up.It answers
Becoming meter must be parallel with axis of support, is preferably overlapped.3. unclamping two M10 screws, standard core rods are taken out from one end, then mark
Quasi core stick, which is packed into, continues next installation in another secondary mounting rack.4. after frame to be installed and bracing members firm pasting, i.e.,
It can carry out the formal installation of strain gauge.Strain gauge should be slowly pushed into mounting rack from one end when installation, in place after again two
M10 screw-driving.5. zero frequency value when writing down installation and at that time temperature value.And strain gauge is pushed into mounting rack
When, forbid to make strain gauge bending deformation, smoothly be pushed into；Forbid to make strain gauge torsional deflection, be pushed into a free state；
Strain gauge must flush after in place with the both ends lateral surface of mounting rack.When tightening M10 screw, frequency readings instrument is connected, is being tightened
Frequency values (f1) of preceding survey；The frequency values (f2) of strain gauge must be observed when tightening M10 screw, frequency should be controlled at this time
Within f2=f1 ± 100Hz, two screws should be correspondingly screwed at leisure, until tightening, forbid to twist again after tightening one
Another.The then real time data of the primary data based on surface strain and reading, appropriate strain value P out:
P=K (Fi- F0)+b(Ti- T0)
Wherein, P is strain value, and positive value indicates that tension, negative value indicate to be pressurized；K is calibration coefficient；F0For original frequency mould
Number；FiFrequency modulus when being read to survey；B is temperature corrected value；T0For room temperature；TiTo survey the temperature read.
The process of the military beam installation of the utility model mainly includes scene cleaning, surveying setting-out and installation, at the scene clearly
In reason, the floating quarrel for completing crown beam surface that will construct and sundries are cleaned out, and the protection plastic paper on pre-embedded bolt is rejected, with
The installation of sharp military beam.And in foundation pit earth excavation to military soffit absolute altitude.During surveying setting-out, by measurement group
It is set using the survey that total station or theodolite carry out the axis in length and breadth of every military beam, absolute altitude survey is carried out using level and is set.In reality
With in novel military beam installation process, after crown beam and interim base concrete strength reach 85%, in crown beam and interim base
Setting-out goes out the axis mileage of every military beam, is accurately set up according to unwrapping wire axis.The fixation steel plate of installation end framework, it is fixed
The position of full wafer military beam.The connection structure channel steel and horizontal-associate sleeve bolt of military beam lower part are in the longitudinally mounted certain length of military beam
After install.Then, band concrete is poured to be poured.In this process, crown beam post-cast strip concrete is irrigated before cover board installation.It is mixed
Solidifying soil casting complete upper back backfills the earthwork between military beam, is conserved.
For the utility model embodiment, by military beam as the main component for bearing road vehicles load, tool
There is the features such as portable construction, assembled quick, adaptable.In turn, the utility model embodiment, which solves, in the prior art can not
Meet fast transportation, splicing and quick the problem of withdrawing demand of steel suspension bridge.Moreover, being convenient for steel suspension bridge with transporting operation
Point.Meanwhile work progress is convenient, reduces the investment of personnel, equipment, has at low cost, short construction period and economic benefit
Significant advantage.
Above-mentioned specific embodiment does not constitute the limitation to scope of protection of the utility model.Those skilled in the art answer
Should it is realized that, depend on design requirement and other factors, various modifications, combination, sub-portfolio and substitution can occur.
Any modifications, equivalent substitutions and improvements made within spirit of the present utility model and principle etc. should be included in practical
Within the scope of novel protected.
Claims (6)
1. a kind of steel suspension bridge, which is characterized in that including cast-in-situ bored pile apical cap beam (13), military beam and road surface system (12)；
The both ends of the military beam are end framework (1), are connected with a piece of above standard three between the end framework (1) at both ends in turn
Angle (2)；And the military beam is fixed by the end framework (1) and the cast-in-situ bored pile apical cap beam (13) at its both ends；
It is provided on the top boom of the military beam road surface system (12), the road surface system (12) is successively equipped with wood from the bottom to top
Plate, rubber slab and steel plate.
2. steel suspension bridge according to claim 1, which is characterized in that the cast-in-situ bored pile apical cap beam (13) is L-type, and
The top of the cast-in-situ bored pile apical cap beam (13) is pre-buried for fixing the bolt of the end framework of military beam.
3. steel suspension bridge according to claim 1, which is characterized in that be equipped with the antiskid plate of welding on the steel plate.
4. steel suspension bridge according to claim 2, which is characterized in that the military beam is the military beam of single-layer type,
The end framework (1) is the end 2m framework.
5. steel suspension bridge according to claim 1, which is characterized in that 5 Internal Force Monitoring points are disposed on the military beam, point
The perpendicular compression bar of the military beam is not set, top boom, diagonal web member, is reinforced in triangle on vertical bar and lower boom.
6. steel suspension bridge according to claim 3, which is characterized in that the thickness of the plank, rubber slab and steel plate is respectively
50mm, 10mm, 20mm, the antiskid plate with a thickness of 4mm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821439666.7U CN208792138U (en) | 2018-09-04 | 2018-09-04 | A kind of steel suspension bridge |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821439666.7U CN208792138U (en) | 2018-09-04 | 2018-09-04 | A kind of steel suspension bridge |
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| CN208792138U true CN208792138U (en) | 2019-04-26 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111287088A (en) * | 2020-01-06 | 2020-06-16 | 河南省公路工程局集团有限公司 | Special steel temporary bridge for protecting crossing pipeline and construction method thereof |
-
2018
- 2018-09-04 CN CN201821439666.7U patent/CN208792138U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111287088A (en) * | 2020-01-06 | 2020-06-16 | 河南省公路工程局集团有限公司 | Special steel temporary bridge for protecting crossing pipeline and construction method thereof |
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