A kind of Bridge Erector front fulcrum structure
Technical field
Technical field of bridge construction is the utility model is related to, in particular to a kind of Bridge Erector front fulcrum structure.
Background technology
In bridge construction field, prefabricated assembled bridge can effectively improve site operation speed, ensure the matter of structural elements
Amount, structure durability is improved, application and is had a extensive future.
In the site operation of prefabricated assembled bridge, generally use Bridge Erector sets up superstructure, using crawler crane
To set up the substructures such as pier stud, bent cap, a large amount of human assistances are needed in work progress, low construction efficiency, and to existing traffic shadow
Ring big.Why existing highway bridge Bridge Erector needs crawler crane to carry out the erection of pier stud and bent cap, is primarily due to existing highway bridge
The fulcrum of Bridge Erector needs pier stud to be advanced as carrier for ease of Bridge Erector, it is necessary in advance will in advance on bridge erection route
Pier stud arranges.Bridge superstructure and bottom pier stud usually require to construct twice, the serious efficiency of construction for restricting bridge, and work
Journey amount is huge, it is necessary to expend substantial amounts of manpower and materials, bridge is built cost and significantly rises.And for some territorial environments
Severe situation, bottom pier stud are built extremely difficult.
The content of the invention
The purpose of this utility model seeks to the deficiency for solving above-mentioned background technology, there is provided a kind of Bridge Erector front fulcrum knot
Structure.
The technical solution of the utility model is:A kind of Bridge Erector front fulcrum structure, including along main couple from bridge to arrangement,
It is characterized in that:Also include front leg strut and the leveling structure positioned at front leg strut lower end;Before described front leg strut upper end and main couple
Bottom connection is held, lower end is supported on leveling structure;Described leveling structure can on ground below main couple front end to be shelved on
The bogey moved with main couple.
Further described leveling structure includes support base;Described support base has horizontal upper end for up-small and down-big
The block structure in face;Described front leg strut lower end is supported on the upper surface of support base.
Further described front leg strut includes the horizontal beam arranged along direction across bridge;Described horizontal beam direction across bridge both ends are set
It is equipped with adjustable for height vertical supporting system;The lower end of described vertical supporting system is supported on the upper surface of support base.
The fixes sleeve for including being fixed on horizontal beam direction across bridge both ends and and set of further described vertical supporting system
Quill located at fixes sleeve lower end;Described fixes sleeve and quill is coaxially arranged, its weight to connect together
Multiple vertically spaced apart through holes, fixes sleeve and quill are offered on folded part by being arranged in inserting in through hole
Pin is fixed together.
Vertical jacking cylinder is provided with further described quill periphery face;Described jacking cylinder
Housing is fixed on the periphery end face of quill, and pushing end is fixed with the bracket on fixes sleeve periphery end face to be connected
Connect.
Further described quill joins end to end the column structure to be formed for multiple sections;Described section is axle
There is the tubular structure of otic placode to end set;Screw is offered on described otic placode, adjacent segment is consolidated by bolt through screw
It is scheduled on together.
The section lower end in bottom is provided with ball hinged support in further described quill;Described ball pivot
Bearing includes the bottom plate for the ball groove for being fixed on the spherical crown of quill lower end and offering corresponding spherical crown;Described spherical crown can be around
The centre of sphere is rotationally articulated and connected in ball groove;Described bearing plate is on support base.
Horizontal-associate is provided between further described fixes sleeve;Described horizontal-associate is that direction across bridge both ends are fixed on bracket
Upper, upper end is fixed on the truss structure of horizontal beam lower end.
Roller mount is provided between further described horizontal beam and main couple;Described roller mount lower end is fixed on water
On flat-topped ridge, upper end is provided with the motor that roller and driving roller are advanced along main couple length direction;It is provided with described main couple
Along the horizontal slide rail being longitudinally arranged;Described roller-coaster is connected on slide rail.
Further described roller mount lower end is provided with connecting plate;Described connecting plate is to be arranged in roller mount and level
U-shape structure between beam, including fixed with horizontal beam lower flange, connected after roller mount moves into place with main couple by bolt
The top flange connect and the web on the upper and lower edge of a wing of connection.
The secondary overhead traveling crane for carrying support base is provided with further described main couple.
The advantages of the utility model, has:1st, front leg strut of the present utility model directly can be supported on ground, without in advance
Pier stud is arranged, reduces the use of crawler crane, can significantly reduce the difficulty of handling, Bridge Erector is disposably carried out pre-
The assembling construction of pier stud processed, prefabricated bent cap and steel girder;
2nd, a variety of landform can adapt to by front leg strut and being used cooperatively for support base, can quickly realizes main couple
The support of front end, reduce the complexity of front fulcrum anchor structure, improve the efficiency of bearing pointdisposal;
3rd, by setting roller to adjust position of the front leg strut on main couple, the position adjustments of small range are carried out, with
This finds optimal impetus, there is provided better stable support energy;
4th, by setting secondary overhead traveling crane to carry support base, support base is made to be separated with front leg strut, master when reducing mobile front leg strut
The weight of truss carrying, is divided into the disturbance moved reduce to main couple twice, security is improved significantly;
5th, by setting tube-in-tube structure, whole front leg strut vertical extension can be adjusted by jacking cylinder, is adapted it to each
Kind elevation change, accommodation are more extensive;
6th, by the way that quill is arranged into multiple sections, can integrally be grown by controlling section quantity to adjust front leg strut
Degree, the region that elevation changes greatly is adapted to this, regulative mode is simple, easy to operate.
The utility model is simple in construction, easy for installation, and Bridge Erector front fulcrum can be made to be supported on ground, without hanging in advance
Precast Pier Columns are filled as front fulcrum carrier, high degree improves bridge assembly efficiency, has great promotional value.
Brief description of the drawings
Fig. 1:The suitable bridge of front leg strut of the present utility model is to schematic diagram;
Fig. 2:The direction across bridge schematic diagram of front leg strut of the present utility model;
Fig. 3:Front leg strut of the present utility model roller structure schematic diagram (along bridge to);
Fig. 4:The roller structure schematic diagram (direction across bridge) of front leg strut of the present utility model;
Fig. 5:The ball hinged support structural representation of front leg strut of the present utility model;
Wherein:1-main couple;2-front leg strut;2.1-fixes sleeve;2.2-quill;2.3-jacking cylinder;
2.4-support base;2.5-spherical crown;2.6-bottom plate;2.7-through hole;2.8-horizontal beam;2.9-bracket;2.10-otic placode;
2.11-horizontal-associate;2.12-roller mount;2.13-roller;2.14-motor;2.15-slide rail;2.16-connecting plate;3-secondary day
Car.
Embodiment
The utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings.
Such as Fig. 1~5, a kind of Bridge Erector front fulcrum structure, including along the main couple 1 along bridge to arrangement, in addition to front leg strut
2, the front leg strut 2 of the present embodiment is connected to the front lower portion of main couple 1 for upper end, and lower end is supported on the vertical supporting knot on ground
Structure, need to be supported on bent cap or pier stud different from the front leg strut of prior art, the front leg strut of the present embodiment is supported directly on ground
On face, without pouring pier stud in advance.
In order that the support of the lower end of front leg strut 2 is more stable, the present embodiment is provided with leveling structure in the lower end of front leg strut 2.Such as
Shown in Fig. 1 and 2, the leveling structure of the present embodiment includes support base 2.4, and support base 2.4 has horizontal upper end for up-small and down-big
The block structure in face, the lower end of front leg strut 2 are supported on the upper surface of support base 2.4.
The front leg strut 2 of the present embodiment is portal-framed structure, including the horizontal beam 2.8 arranged along direction across bridge, the cross-bridges of horizontal beam 2.8
To adjustable for height vertical supporting system is provided at both ends with, the lower end of vertical supporting system is supported on the upper surface of support base 2.4.Main truss
The secondary overhead traveling crane 3 for carrying support base 2.4 is provided with frame 1.
Vertical supporting system include be fixed on the direction across bridge both ends of horizontal beam 2.8 fixes sleeve 2.1 and and be sheathed on fixation
The quill 2.2 of the lower end of sleeve 2.1, fixes sleeve 2.1 and quill 2.2 are coaxially arranged, and it connects together overlapping
Multiple vertically spaced apart through holes 2.7 are offered on part, fixes sleeve 2.1 and quill 2.2 are logical by being arranged in
Latch in hole 2.7 is fixed together.In use, regulation fixes sleeve 2.1 and the length of the lap of quill 2.2, are adjusted
The vertical extension of front leg strut 2 is saved, so that front leg strut 2 adapts to the ground of different elevations.
In addition, being provided with vertical jacking cylinder 2.3 on the periphery face of quill 2.2, the housing of jacking cylinder 2.3 is consolidated
It is scheduled on the periphery end face of quill 2.2, pushing end and the bracket 2.9 on the periphery end face of fixes sleeve 2.1 are solid
Fixed connection.By driving jacking cylinder 2.3 to lift quill 2.2, regulation process is more convenient.
It is actually small range that the jacking cylinder 2.3 of the present embodiment, which adjusts fixes sleeve 2.1 and the length of quill 2.2,
Regulative mode, in order to preferably adapt to the region that elevation changes greatly, quill 2.2 is designed as multiple sections by the present embodiment
Section.As illustrated in fig. 1 and 2, quill 2.2 is that multiple sections join end to end the column structure to be formed, and section sets for axial end portion
The tubular structure of otic placode 2.10 is equipped with, screw is offered on otic placode 2.10, adjacent segment is fixed on one by bolt through screw
Rise.According to the elevation of territory of use, can adapt to become using the fluctuating of region from the quill 2.2 of varying number section
Change.
Wherein, the section lower end in bottom is provided with ball hinged support in quill 2.2, and ball hinged support includes fixing
The lower end of quill 2.2 spherical crown 2.5 and offer corresponding spherical crown 2.5 ball groove bottom plate 2.6, spherical crown 2.5 can be around ball
The heart is rotationally articulated and connected in ball groove, and bottom plate 2.6 is supported on support base 2.4, as shown in Figure 5.Ball hinged support can adapt to
The inclination of support base 2.4, make the support of front leg strut 2 more stable.
For the stability of further enhancing total, the present embodiment is provided with horizontal stroke between two fixes sleeves 2.1
Connection 2.11, horizontal-associate 2.11 are that direction across bridge both ends are fixed on bracket 2.9, upper end is fixed on the truss structure of the lower end of horizontal beam 2.8.
The upper end of front leg strut 2 is slidably connected on main couple 1, during actual use, can be carried out position adjustments, be formed with this
Best support.The slide construction of the present embodiment is shown in Fig. 3 and 4, and roller mount 2.12 is provided between horizontal beam 2.8 and main couple 1,
The lower end of roller mount 2.12 is fixed on horizontal beam 2.8, and upper end is provided with roller 2.13 and driving roller 2.13 along the length side of main couple 1
To the motor 2.14 of traveling, the slide rail 2.15 being longitudinally arranged along level is provided with main couple 1, roller 2.13 is slidably connected to cunning
On rail 2.15.
The lower end of roller mount 2.12 is provided with connecting plate 2.16, and connecting plate 2.16 is to be arranged in roller mount 2.12 and horizontal beam
U-shape structure between 2.8, including with horizontal beam 2.8 fix lower flange, after roller mount 2.12 moves into place with main couple 1
The top flange being bolted and the web on the upper and lower edge of a wing of connection.By bolt arrangement by connecting plate 2.16 and main couple 1
It is fixed together, can completes to lock together both in the position adjustments of front leg strut 2, avoid producing rolling in use
It is dynamic.
In use, using region according to Bridge Erector, survived by corresponding elevation using multiple section assemblings of relative populations
Moving sleeve 2.2, quill 2.2 is fixed in fixes sleeve 2.1 by latch, then hung main couple 1 by straddle truck
Transport on the bridge floor that assembly has been completed, complete the erection of Bridge Erector.
The position of support base 2.4 is adjusted by secondary overhead traveling crane 3, position of the front leg strut 2 on main couple 1 is driven by motor 2.14
Put, the lower end of front leg strut 2 is corresponded to support base 2.4, adjust jacking cylinder 2.3, the accurate vertical height for adjusting front leg strut 2, by before
The lower end of supporting leg 2 is shelved on the upper surface of support base 2.4.
When Bridge Erector need moved across when, by driving jacking cylinder 2.3 to rise quill 2.2, disengage it from
Support base 2.4, is moved after the completion of, front leg strut 2 lower section of the secondary handling support base 2.4 of overhead traveling crane 3 to after moving into place, adjusts front leg strut
2 position, it is set to be supported on again on support base 2.4.
The advantages of general principle of the present utility model, principal character and the utility model has been shown and described above.One's own profession
The technical staff of industry is it should be appreciated that the utility model is not restricted to the described embodiments, described in above-described embodiment and specification
Simply illustrate principle of the present utility model, the utility model can also on the premise of the spirit and scope of the utility model is not departed from
There are various changes and modifications, these changes and improvements are both fallen within claimed the scope of the utility model.The utility model will
Protection domain is asked to be defined by appended claims and its equivalent.