A kind of erection method of the trestle for bridge construction
Technical field
The present invention relates to a kind of erection methods of trestle for bridge construction.
Background technique
In bridge construction, trestle is the tie that Main Pier of Bridges operation platform is connected with land and the construction of north and south two sides
The unique passage of transport is the lifeline of over-water construction.Trestle is as transport material, equipment, personnel and the temporary bridge built
Facility is the unique passage that main bridge construction material supply and traffic waterborne enter and leave, and the basic engineering of entire Bridge Construction
And main projects, especially across river, bridge spanning the sea, often trestle is built long, and the human and material resources of investment are relatively more.
Current construction bridge longest in the world --- Ningbo Southern Coastal Bridge over Hangzhou Bay construction bridge, 9444 meters of overall length, totally 633
Across.As it can be seen that progress, cost that the optimization of trestle work structure constructs for trestle etc. have particularly important meaning.Trestle is being constructed
Very important effect is played in the process, is the basic condition and precondition of entire Bridge Construction.In order to guarantee the duration, improve
Construction safety, trestle construction must be quickly and safe.
Summary of the invention
A kind of setting up for trestle for bridge construction is provided it is an object of the invention to overcome the deficiencies of existing technologies
Method, it, which is able to achieve, quickly and safely constructs.
The object of the present invention is achieved like this: a kind of erection method of the trestle for bridge construction, the trestle are taken
It is located between the lateral siding of the bank side of the abutment on bank and the steel jacket box for Bridge Pier Construction;The width of the trestle with it is described
The direction across bridge of steel jacket box is of same size and is spliced by five narrow trestles independent and that width is equal;Five narrow trestles
Length is different and stepped splicing from long to short;Longest narrow trestle and the narrow trestle of vice-minister pass through interval setting
Three row's load-bearing pillars support, intermediate narrow trestle, secondary short narrow trestle and shortest narrow trestle pass through interval setting
Two rows of steel-pipe piles support;Every row's load-bearing pillar is spaced the steel-pipe pile unanimously arranged by three and constitutes, and the top of three steel-pipe piles is adopted
Coupled with bridging and horizontal brace;It is laid with a distribution beam on the top surface of every row's steel-pipe pile, is laid with from abutment extremely in distribution beam
The Bailey bracket of steel jacket box, is laid with floor beam in Bailey bracket, and floorings are laid on floor beam;The Bailey bracket is by several
Section Bailey beam is spliced, and every section of Bailey beam is made of several Pin beret slices;The erection method of the trestle is by the lateral river of bank
Side set up and the following steps are included:
Step 1 is first flattened and is rolled to abutment, then spills the rubble of 20cm thickness in the top surface of abutment paving, is gone back in abutment
Pre-embedded steel slab;
Step 2 installs longest narrow trestle, using crawler crane and the nearest first row steel in vibration hammer inserting piling offshore side
Tubular pole;
Step 3, including following process:
A., distribution beam at the top of first row steel-pipe pile is installed;
B. first segment Bailey beam, the bridge of first segment Bailey beam are set up in the distribution beam at the top of abutment and first row steel-pipe pile
The Bailey beam pin of end lower part is welded on the pre-embedded steel slab of abutment longitudinal to carry out to first segment Bailey beam by locating part
Limit;
Step 4, including following process:
A. the floor beam and floorings being laid in first segment Bailey beam;
B. inserting piling second row steel-pipe pile;
Step 5, including following process:
A., distribution beam at the top of second row steel-pipe pile and the bridging and horizontal brace between second row steel-pipe pile are installed;
B. second segment Bailey beam is set up in the distribution beam at the top of second row steel-pipe pile, and connects second segment Bailey beam and the
One section of Bailey beam;
Step 6, including following process:
A. the floor beam and floorings being successively laid in second segment Bailey beam;
B. inserting piling third arranges steel-pipe pile;
Step 7, including following process:
A. the distribution beam at the top of installation third row steel-pipe pile and bridging and horizontal brace between third row's steel-pipe pile;
B. third section Bailey beam is set up in the distribution beam at the top of third row's steel-pipe pile, and connects third section Bailey beam and the
Two sections of Bailey beams;
Step 8, the floor beam and floorings being successively laid in third section Bailey beam;
Step 9 installs the narrow trestle of vice-minister, repeats the above steps two to step 8;
Step 10 installs intermediate narrow trestle, repeat the above steps two to step 6 process a;
Step 11, time short narrow trestle of installation, repeat the above steps two to step 6 process a;
Step 12 installs shortest narrow trestle, repeat the above steps two to step 6 process a.
The erection method of the above-mentioned trestle for bridge construction, wherein the steel-pipe pile uses 630 × 8mm of φ steel pipe;
Pilespacing is 3.0m, penetrates rubble bedding, and after having good positioning, root pours the Underwater Concrete of 2.0m thickness;The top of every steel-pipe pile uses
Stake top steel plate is fixed in weld all around, is fixed on the distribution beam on stake top steel plate by electric welding.
The erection method of the above-mentioned trestle for bridge construction, wherein the distribution beam uses Two bors d's oeuveres I-steel;Distribution
Beam land welding ribbed stiffener and gusset piece at the construction field (site) are installed after forming entirety with loop wheel machine.
The erection method of the above-mentioned trestle for bridge construction, wherein beret slice described in every Pin is by two rows of beret slice lists
If member or three row's beret slice units are coupled by arterial highway horizontal-associate, two side bottoms of every Pin beret slice are being divided by angle steel cross spacing
With on beam;If every row's beret slice unit uses pin joint by dry plate beret slice;And every Pin beret slice is existed using the U-shaped respective padlock of hoop
In distribution beam and on floor beam;Every Pin beret slice is assembled at the construction field (site), then is mounted in distribution beam using crawler crane.
The erection method of the above-mentioned trestle for bridge construction, wherein the floor beam is I-steel;The bridge floor
Plate is welded on floor beam using more left-hand thread channel steel points, spacing 25cm.
The erection method of trestle for bridge construction of the invention has the following characteristics that
1) can be in the prefabricated steel-pipe pile of back court, distribution beam, Bailey beam and floorings, then it is transported to in-site installation, realize stack
The batch production of bridge construction, standardized work, construction are not influenced by weather and site environment, substantially increase speed of application, are improved
Construction environment, is truly realized rapid tresstle work, land, batch production, standardization.
2) floorings reduce steel using amount and site welding project amount, no compared with traditional steel facing using left-hand thread channel steel
Construction cost has only been saved, noise pollution when driving is also reduced, has reduced the vibration driven a vehicle to trestle, driving has been improved and relaxes
Appropriateness.
Detailed description of the invention
Fig. 1 is the plan view for the trestle for bridge construction that erection method of the invention is related to;
Fig. 2 is the cross-section diagram for the trestle for bridge construction that installation method of the invention is related to;
Fig. 3 is A-A in Fig. 1 to sectional view;
Fig. 4 is the B-B direction sectional view in Fig. 1;
Fig. 5 is the enlarged drawing at the position C in Fig. 3;
Fig. 6 a to Fig. 6 h is that the erection method of the trestle for bridge construction of the invention carries out step 1 to step respectively
Eight state diagram.
Specific embodiment
The present invention will be further described with reference to the accompanying drawings.
Trestle involved in the erection method of trestle of the invention rides upon 1 He of abutment on bank referring to FIG. 1 to FIG. 4,
Between the lateral siding of the bank side of steel jacket box 2 for Bridge Pier Construction;The width of trestle and the direction across bridge of steel jacket box are of same size
And it is spliced by five narrow trestles 10~50 independent and that width is equal;The length of five narrow trestles 10~50 is different
And stepped splicing from long to short;Longest narrow trestle 10 and the narrow trestle 20 of vice-minister pass through spaced three row
Load-bearing pillar support, intermediate narrow trestle 30, secondary short narrow trestle 40 and shortest narrow trestle 50 pass through interval setting
Two rows of steel-pipe piles support;Every row's load-bearing pillar is spaced the steel-pipe pile 100 unanimously arranged by three and constitutes, and steel-pipe pile uses φ 630
× 8mm steel pipe;The top of three steel-pipe piles 100 is coupled using bridging 101 and horizontal brace 102;The top surface of every row's steel-pipe pile 100
It is upper that stake top steel plate is fixed using weld all around, a piece distribution beam 200 is laid with by stake top steel plate in the top surface of every row's steel-pipe pile;It is distributing
It is laid with the Bailey bracket 300 from abutment 1 to steel jacket box 2 on beam 200, floor beam 400 is laid in Bailey bracket 300, in bridge floor cross
Floorings 500 are laid on beam 400.
Distribution beam 200 uses Two bors d's oeuveres I-steel, distribution beam 200 land welding ribbed stiffener and gusset piece at the construction field (site), shape
It is installed after integral with loop wheel machine.
Bailey bracket 300 is spliced by two to three sections of Bailey beams, and every section of Bailey beam is made of four Pin beret slices;Every Pin shellfish thunder
Piece is coupled by two rows of beret slice units or three row's beret slice units by five horizontal-associates, and five horizontal-associates are each located on every Pin beret slice
Both ends and length direction 1/4,1/2 and 3/4 at;Two side bottoms of every Pin beret slice are being divided by 303 cross spacing of angle steel
With on beam 200;If every row's beret slice unit uses pin joint by dry plate beret slice;Every Pin beret slice is assembled at the construction field (site), then adopts
It is mounted in distribution beam 200 with crawler crane, every row's beret slice unit is using U-shaped hoop padlock in distribution beam 200.
Floor beam 400 is I-steel, and floor beam 400 is using U-shaped hoop padlock in Bailey bracket 300.
Floorings 500 are welded on floor beam 400 using more left-hand thread channel steel points, spacing 25cm.
The erection method of trestle for bridge construction of the invention be set up by the lateral river side of bank and the following steps are included:
Step 1 is first flattened and is rolled to abutment 1a~1e, then spills 20cm thickness in the top surface of abutment 1a~1e paving
Rubble goes back pre-embedded steel slab in abutment 1a~1e (see Fig. 6 a);
Step 2, installs longest narrow trestle 10, and the narrow trestle 10 of this is supported by three row's load-bearing pillars and by three sections of shellfishes
Lei Liang is spliced;Using crawler crane 60 and vibration hammer inserting piling offshore side nearest first row steel-pipe pile 100a, pilespacing 3.0m,
Rubble bedding is penetrated, after having good positioning, root pours the Underwater Concrete of 2.0m thickness, and the top of every steel-pipe pile is using the fixed stake top of weld all around
Steel plate (see Fig. 6 b);When construction, using GPS positioning, controlled with final penetration based on, pile top absolute altitude is check and correction;Work as pile penetration
Reach control pile penetration, stake bottom absolute altitude reaches designed elevation, Ying Lianxu strike-on 3 times, stops to hammer 2min into shape every time, can stop;When passing through
In-degree reaches control pile penetration, and stake bottom absolute altitude is not up to designed elevation, and Ying Jixu squeezes into 10cm or so, and continuous strike-on 3 times,
Stopping hammer 2min every time can stop if variation without exception;When stake bottom has reached designed elevation, and pile penetration is still larger, Ying Ji
Continuous inserting piling, makes its pile penetration reach control pile penetration;
Step 3, including following process:
A., distribution beam 200 at the top of first row steel-pipe pile 100a and the bridging between first row steel-pipe pile 100a are installed
101 and horizontal brace 102, distribution beam 200 is fixed on stake top steel plate by electric welding;
B. first segment Bailey beam 300a is set up in the distribution beam 200 at the top of abutment 1a and first row steel-pipe pile 100a, the
The Bailey beam pin 301 of the abutment end lower part of one section of Bailey beam 300a is welded on the pre-embedded steel slab of abutment 1a by locating part 302
On 1a ', locating part 302 is angle steel, to carry out longitudinal spacing to first segment Bailey beam 300a (see Fig. 5 and Fig. 6 c);
Step 4, including following process:
A. the floor beam 400 and floorings 500 being laid on first segment Bailey beam 300a;
B. inserting piling second row steel-pipe pile 100, pilespacing 3.0m penetrate rubble bedding again, and after having good positioning, root pours 2.0m
The top of thick Underwater Concrete, every steel-pipe pile is fixed stake top steel plate using weld all around (see Fig. 6 d);
Step 5, including following process:
A., distribution beam 200 at the top of second row steel-pipe pile 100b and the bridging between second row steel-pipe pile 100b are installed
101 and horizontal brace 102;Distribution beam 200 is fixed on stake top steel plate by electric welding;
B. second segment Bailey beam 300b is set up in the distribution beam 200 at the top of second row steel-pipe pile 100b, and connects second
Section Bailey beam 300b and first segment Bailey beam 300a (see Fig. 6 e);
Step 6, including following process:
A. the floor beam 400 and floorings 500 being successively laid on second segment Bailey beam 300b;
B. inserting piling third arranges steel-pipe pile 100c, and pilespacing 3.0m penetrates rubble bedding, and after having good positioning, root pours 2.0m
The top of thick Underwater Concrete, every steel-pipe pile is fixed stake top steel plate using weld all around (see Fig. 6 f);
Step 7, including following process:
A. the distribution beam 200 at the top of installation third row steel-pipe pile 100c and the bridging between third row steel-pipe pile 100c
101 and horizontal brace 102;Distribution beam 200 is fixed on stake top steel plate by electric welding;
B. third section Bailey beam 300c is set up in the distribution beam 200 at the top of third row steel-pipe pile 100c, and connects third
Section Bailey beam 300c and second segment Bailey beam 300b (see Fig. 6 g);
Step 8, the floor beam 400 and floorings 500 being successively laid on third section Bailey beam 300c (see Fig. 6 h);
Step 9, installs the narrow trestle 20 of vice-minister, and the narrow trestle 20 of this is supported by three row's load-bearing pillars and by three sections of shellfishes
Lei Liang is spliced;Two are repeated the above steps to step 8;
Step 10, installs intermediate narrow trestle 30, and the narrow trestle 30 of this is supported by two row's load-bearing pillars and by two sections of shellfishes
Lei Liang is spliced;Repeat the above steps two to step 6 process a;
Step 11, the short narrow trestle 40 of installation time, the narrow trestle 40 of this are supported by two row's load-bearing pillars and by two sections
Bailey beam is spliced;Repeat the above steps two to step 6 process a;
Step 12, installs shortest narrow trestle 50, and the narrow trestle 50 of this is supported by two row's load-bearing pillars and by two sections
Bailey beam is spliced;Repeat the above steps two to step 6 process a.
Above embodiments are used for illustrative purposes only, rather than limitation of the present invention, the technology people in relation to technical field
Member, without departing from the spirit and scope of the present invention, can also make various transformation or modification, therefore all equivalent
Technical solution also should belong to scope of the invention, should be limited by each claim.