A kind of bridge cable lays crane span structure
Cable laying technical field is the utility model is related to, more particularly to a kind of bridge cable laying crane span structure.
With the development of social economy and energy technology, electric power has obtained extensively as clean energy resource in human society
General application, with the raising of network load demand, build strong stable power network and have become the important of maintenance Stable Development in Economy
Link；The important transmission line of electricity of increase power network, increase node interconnector become the important foundation stone of sturdy power grid.But with city
Development construction, City Electric Power Demand is increasing, while power channel space is squeezed, power circuit build from original
The aerial mode come progressively is converted into cable mode, to provide larger transmission line capability using smaller space.
When power circuit is across river, depression, steel tower can be used to set up the aerial mode of wire and crossed over, with progressively
Switch to power cable line, can only just be bored more using the underground space.It is well known that the Installed capital cost of underground engineering and
Danger is multiplied compared with ground engineering.In this case, how more convenient power cable line is across river, depression etc.
Landform, into urgent problem to be solved.
In Modern Urban Planning, cable run is often with Urban Planning Road cabling, and cable run is near river
Municipal bridge or tunnel often have been built across point, the passage of the landform such as river can have been crossed over as cable run in theory, if can lead to
Cross by the use of bridge as carrier and build power channel, can effectively reduce cable run construction investment, also can effectively reduce circuit
Construction period, improve economic results in society.
But at present in the urban planning in China, because of the different and various planning of demand, technical conditions constraint, electric power
Identical state can not be fully achieved with urban road, the construction demand of bridge in the construction demand of circuit.When bridge planning is built
It can not fully estimate whether need reserve power passage, blindness reserved passageway can only waste public resource；And cable run construction
When, often because the planning bridge construction cycle is longer, it is impossible to meet electricity needs.
Therefore, how on the bridge built up cabling circuit, reduce cable run construction investment, be this area
Technical staff's technical problem urgently to be resolved hurrily.
Utility model content
The purpose of this utility model is to provide a kind of bridge cable laying crane span structure, can be laid on the bridge built up
Cable run, reduce cable run construction investment；When can also be used as bridge planning construction simultaneously, the pattern of reserve power passage.
In order to solve the above technical problems, the utility model provides a kind of bridge cable laying crane span structure, including it is deposited for carrying
If the assembling truss of cable thereon, it is anchored on bridge wing plate, for be connected the truss with the bridge wing plate
Crab-bolt, and be arranged on the truss, the cable protection pipe for cable coat protection.
Preferably, the truss includes column, longitudinally connected bar and transverse connecting rod, and the column connects with the crab-bolt
Connect, length direction of the longitudinally connected bar along bridge is arranged on the column bottom, width of the transverse connecting rod along bridge
Degree direction is arranged between the adjacent column, to form the space support frame structure along bridge length direction.
Preferably, the main material of the column, the longitudinally connected bar and the transverse connecting rod is the steel of box-type section
Material, and the four sides of the steel is respectively provided with spacing 40mm~60mm connecting hole.
Preferably, the column is provided with column connecting piece, the column and the transverse direction with the crab-bolt bottom junctions
Connecting rod junction is provided with transverse connection, and the column is provided with longitudinal connecting member with the longitudinally connected bar junction.
Preferably, the truss also includes brace, the brace length side arranged in a crossed manner along bridge it is adjacent
Between the column, and the brace being connected with the bridge wing plate bottom is respectively provided with the longitudinally connected bar both ends.
Preferably, the truss surface is equipped with anticorrosion hot galvanized layer.
Preferably, the crab-bolt is specially M30 or M36 anchor bolts.
Preferably, the cable protection pipe is both arms bellows or glass steel conduit, and the cable protection pipe is along bridge
Length direction is laid on the truss.
Preferably, in addition to for the cable protection pipe to be fixed on to protection pipe anchor ear on the truss.
Bridge cable provided by the utility model lays crane span structure, mainly including truss, crab-bolt and cable protection pipe.Its
In, truss is mainly used in carrying cable, and cable is laid thereon along bridge length, and truss main member is assembled
Combined member, easy disassembly, it is easy to the maintenance and replacing of crane span structure；Crab-bolt is mainly used in truss being anchored at bridge wing plate bottom；
Cable protection pipe is arranged on truss along the cable direction of lay, is mainly used in carrying out cladding protection to cable.In application originally
During the bridge cable laying crane span structure that utility model is carried, through hole, crab-bolt anchor point are formed on bridge wing plate using bore mode
Above wing plate, ensure reliability, truss is installed, and by mounted truss and anchor bolts, cable protection pipe is installed
On truss, drawn in bridge both ends (i.e. cable testing bridge termination) and discharge cable, that is, realized and laid on the bridge built up
Cable run, using assembled combined member, and it is easy to connect, it is relatively low to required precision, facilitate cable testing bridge to install, be easy to examine
Repair, change, the feasibility of the cabling on the bridge without reserved passageway can be met, pass through convenient simple form of construction work, energy
Effectively solves bridge cabling problem, there is provided simple, fast system of laying, build input to reduce, improve social economy
Benefit makes positive contribution.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only
It is embodiment of the present utility model, for those of ordinary skill in the art, on the premise of not paying creative work, also
Other accompanying drawings can be obtained according to the accompanying drawing of offer.
Fig. 1 is a kind of overall structure diagram of embodiment provided by the utility model；
Fig. 2 is integrally-built another angular views shown in Fig. 1；
Fig. 3 is the truss main material structural representation shown in Fig. 1；
Fig. 4 is another angular views of main material structure shown in Fig. 3；
Fig. 5 is the column connecting piece structural representation shown in Fig. 1；
Fig. 6 is the transverse connection structural representation shown in Fig. 1；
Fig. 7 is the longitudinal connecting member structural representation shown in Fig. 1.
Wherein, in Fig. 1-Fig. 7：
Truss -1, column -11, longitudinally connected bar -12, transverse connecting rod -13, brace -14, crab-bolt -2, electricity
Cable protection pipe -3, protection pipe anchor ear -4.
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
Fig. 1 and Fig. 2 are refer to, Fig. 1 is that a kind of overall structure of embodiment provided by the utility model is illustrated
Figure；Fig. 2 is integrally-built another angular views shown in Fig. 1.
In a kind of embodiment provided by the utility model, bridge cable laying crane span structure mainly include truss 1,
Crab-bolt 2 and cable protection pipe 3.
Wherein, truss 1 is mainly used in carrying cable, and cable is laid thereon along bridge length, and truss 1 is main
Component is assembled combined member, easy disassembly, is easy to the maintenance and replacing of crane span structure；Crab-bolt 2 is mainly used in truss 1 being anchored at
Bridge wing plate bottom；Cable protection pipe 3 is arranged on truss 1 along the cable direction of lay, is mainly used in wrapping cable
Specifically, when the bridge cable carried using the utility model lays crane span structure, using bore mode in the bridge wing
Form through hole on plate, the anchor point of crab-bolt 2 is located above wing plate, ensures reliability, installs truss 1, and by mounted truss 1 with
Crab-bolt 2 is connected, and cable protection pipe 3 is arranged on truss 1, is drawn in bridge both ends (i.e. cable testing bridge termination) and is discharged cable,
Realize the cabling circuit on the bridge built up.
Install and use effect to optimize truss 1 in above-described embodiment, truss 1 mainly by column 11, longitudinally connected bar 12,
Transverse connecting rod 13 and brace 14 form；Column 11 is connected with crab-bolt 1, and length direction of the longitudinally connected bar 12 along bridge is set
In the bottom of column 11, width of the transverse connecting rod 13 along bridge is arranged between adjacent upright posts 11, is grown with being formed along bridge
Spend the space support frame structure in direction.Meanwhile truss 1 also includes brace 14, the length arranged in a crossed manner along bridge of brace 14
Between the adjacent upright posts 11 of degree side, and the brace 14 being connected with bridge wing plate bottom is respectively provided with the longitudinally connected both ends of bar 12.
Fig. 3 be refer to Fig. 7.
Wherein, column 11, longitudinally connected bar 12, the steel that the main material of transverse connecting rod 13 is box-type section, it is main to use
Q235B or Q345B steel, its surface use galvanizing anticorrosion, are respectively provided with the connecting hole that spacing is 50mm on four sides, whole body can
Arbitrarily connection, the spacing of certain connecting hole are not limited to above-mentioned numerical value, selection can also be designed according to practical situations.Together
When, truss generally steel construction is convenient to set earthing or grounding means respectively in bridge both sides, ensures whole truss reliable ground, avoids
Form dangerous matter sources.
Further, column 11 is connected by column connecting piece with crab-bolt 2, and transverse connection is by column 11 and transverse connecting rod
Column 11 is connected by 13 connections, longitudinal connecting member with longitudinally connected bar 12.
Effect is installed and used in order to optimize crab-bolt 2 in above-described embodiment, while the drilling of crab-bolt 2 is to considering to bridge structure
Influence, crab-bolt 2 uses M30 or M36 anchor bolts, in use, can be formed using bore mode on wing plate on present situation bridge
Through hole, it is anchored in above wing plate, because crab-bolt size itself is smaller, its bore diameter about 36~40mm, does not jeopardize bridge structure
Safety；In reserved passageway, can using directly it is pre-buried by the way of be anchored in wing plate.Meanwhile bore position is bridge wing plate, is kept away
The influence that force structure (box beam) is wanted to bridge main is opened.Measure is closed by the later stage, ensure that bridge structure integrality.To rule
Preburied component can then be shifted to an earlier date by drawing bridge, and no structural intergrity influences.
Effect is installed and used in order to optimize cable protection pipe 3 in above-described embodiment, cable protection pipe mainly plays protection cable
And insulating effect, double-wall corrugated pipe, glass steel conduit, C-PVC or MPP cable duct tubes can be used.Protection pipe is along bridge length side
Laid to all fronts, form the omnibearing protection to cable；Tubing is insulating materials, to form insulation protection.
Further, in order to improve the mounting stability on truss 1 of cable protection pipe 3, protection pipe anchor ear 4 can be set up,
The protection pipe anchor ear 4 can use p-type or U-shaped anchor ear, and cable protection pipe is fixed on truss.
Certainly, bridge cable laying crane span structure is laid in when building (planning) bridge, due to bridge planning process of construction
In, it is impossible to reserved cable passage is determined whether completely, then can be reserved by the way of pre-buried cable testing bridge anchor portion, i.e., only
The crab-bolt 2 of pre-buried cable testing bridge, and using resin material closing exposed portion.In this way, the cost of cast-in fixing bolt only accounts for bridge work
An atomic small part for journey cost, even if the later stage is not required to use, also do not cause to waste；After cast-in fixing bolt 2, the later stage is applied using passage
If during cable, need to only carry out the installation of cable testing bridge, it is not required to change bridge structure, is provided greatly just for later stage work
In summary, the bridge cable laying crane span structure that the present embodiment is provided, which mainly includes truss 1, crab-bolt 2 and cable, to be protected
Pillar 3.Wherein, truss 1 is mainly used in carrying cable, and cable is laid thereon along bridge length, 1 main structure of truss
Part is assembled combined member, easy disassembly, is easy to the maintenance and replacing of crane span structure；Crab-bolt 2 is mainly used in truss 1 being anchored at bridge
Beam wing plate bottom；Cable protection pipe 3 is arranged on truss 1 along the cable direction of lay, is mainly used in coating cable
Protection.When the bridge cable carried using the utility model lays crane span structure, formed and led on bridge wing plate using bore mode
Hole, the anchor point of crab-bolt 2 are located above wing plate, ensure reliability, install truss 1, and mounted truss 1 is connected with crab-bolt 2,
Cable protection pipe 3 is arranged on truss 1, is drawn in bridge both ends (i.e. cable testing bridge termination) and discharges cable, that is, is realized existing
Cabling circuit on built bridge.Truss 1 uses assembled combined member, and easy to connect, relatively low to required precision,
Facilitate cable testing bridge to install, be easy to overhaul, change, the feasibility of the cabling on the bridge without reserved passageway can be met, lead to
Convenient simple form of construction work is crossed, when can effectively solve bridge cabling problem, while can also be used as bridge planning construction, in advance
Stay the pattern of power channel.Bridge cable laying crane span structure provided by the utility model provides simple, fast cable laying side
Formula, input is built to reduce, improve economic results in society and make positive contribution.
The foregoing description of the disclosed embodiments, professional and technical personnel in the field are enable to realize or new using this practicality
Type.A variety of modifications to these embodiments will be apparent for those skilled in the art, determine herein
The General Principle of justice can be realized in other embodiments in the case where not departing from spirit or scope of the present utility model.Cause
This, the utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The most wide scope consistent with features of novelty.