CN109653076A - Combined type flood control is passed the flood period lock head shellfish Lei Gangqiao and construction method - Google Patents

Combined type flood control is passed the flood period lock head shellfish Lei Gangqiao and construction method Download PDF

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Publication number
CN109653076A
CN109653076A CN201811582481.6A CN201811582481A CN109653076A CN 109653076 A CN109653076 A CN 109653076A CN 201811582481 A CN201811582481 A CN 201811582481A CN 109653076 A CN109653076 A CN 109653076A
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China
Prior art keywords
shellfish
lock head
gangqiao
flood
lei
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CN201811582481.6A
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CN109653076B (en
Inventor
蔡贤俊
杨帆
王大华
张岱瑛
徐勇
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Sichuan Port And Navigation Construction Engineering Co Ltd
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Sichuan Port And Navigation Construction Engineering Co Ltd
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    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D6/00Truss-type bridges
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D21/00Methods or apparatus specially adapted for erecting or assembling bridges
    • E01D21/10Cantilevered erection

Abstract

The invention discloses a kind of flood controls of combined type to pass the flood period lock head shellfish Lei Gangqiao and construction method, comprising the following steps: lock head shellfish thunder assembling of steel bridge is using reinforcing chord member, upper reinforce chord member and bottom reinforces inclined chord and carries out local strengthening to the connecting portion of beret slice;Outstanding pushing manipulation sets up system and Adjustable horizontal rolling and bowl fastening type position-limited rack equipped with limit plate is used to prevent the sidesway of shellfish thunder steel bridge from derailing and toppling;Combined type flood control passes the flood period system using pre-embedded bolt and turnbuckle tension shellfish Lei Gangqiao;Outstanding daraf(reciprocal of farad) removes system and the adjustable rock and roll equipped with limit plate is used to support nose girder, the construction method increases shellfish thunder steel bridge overall stability and the safety to ambient enviroment, shellfish thunder steel bridge node shearing strength is high, bearing capacity is strong, it improves outstanding push bracket and sets and hang the anti-overturning energy drawn in demolishing process, and flood control pass the flood period during scour resistance, ensure that the quality and safety and stability of shellfish thunder steel bridge, applied to preferable technical economic benefit can be obtained in Practical Project.

Description

Combined type flood control is passed the flood period lock head shellfish Lei Gangqiao and construction method
Technical field
The present invention relates to field of bridge construction, and in particular to combined type flood control is passed the flood period lock head shellfish Lei Gangqiao and construction method.
Background technique
With the development of China's construction of hydropower facilities cause, the Construction of Step Hydropower Station of most of rivers has extended to upstream, engineering Place many places in mountain area that is with a varied topography, having inconvenient traffic, based on the sidewalk of marching into the arena of Engineering Service also multispan gets over what The turbulent river crashes its way through Rivers.In certain ship lock reconstruction and extension projects, for the ease of being open to traffic and improving construction efficiency, need that Bailey bracket is arranged in lock head Bridge connects ship lock left and right banks, to extend construction road to each operation side.
Currently, conventional Bailey bridge mounting technique mainly using outstanding pushing manipulation, that is, is taken and is first taken in main structure of a bridge front end setting nose frame Gradually the drawing main structure of a bridge in place, generally comprises and places roller bearing, assembled nose frame, assembled bridge section, push away bridge, remove nose again after to opposite bank bridge pier Frame falls bridge and bridge floor of mating formation.It, need to also be in Bailey bridge truss if stabilizing moment is less than tilting moment during outstanding push away Rear counterweight.On the contrary, conventional Bailey bridge demolition technique is mainly using outstanding daraf(reciprocal of farad), i.e., according to the sequence opposite with outstanding pushing manipulation into Row is gradually removed, and is generally comprised and is removed floorings, very heavy jack-up bridge, place roller bearing, install nose frame, move back bridge, removing bridge section and tear open Except nose frame.However, either Bailey bridge is removed using outstanding pushing manipulation installation or using outstanding daraf(reciprocal of farad), because of the self weight of Bailey bridge It is larger, there is the potential risk toppled, it is therefore desirable to the prior art be further improved with improve its resistance to capsizing or Reduce the risk class of capsizing case.In addition, also needing to consider flood for for the Bailey bridge construction in ship lock reconstruction and extension project Wash away this risk factors, it is necessary to certain reinforcement measure is taken Bailey bridge during flood control is passed the flood period.
Summary of the invention
The purpose of the present invention is to provide a kind of structurally reasonable, high, outstanding push bracket of node bonding strength to set steady, flood fighting water punching Brush ability is strong, hangs the construction for drawing the combined type for removing the features such as convenient and efficient and safety coefficient are high flood control to pass the flood period lock head shellfish thunder steel bridge Method, and the combined type flood control that construction is completed are passed the flood period lock head shellfish Lei Gangqiao.
In order to realize that any of the above goal of the invention, the present invention provide the construction that lock head shellfish thunder steel bridge is passed the flood period in combined type flood control Method, comprising the following steps:
Step 1, assembled shellfish Lei Gangqiao:
Using lock head shellfish thunder steel bridge construction assembly shellfish Lei Gangqiao:
The male connector of first beret slice and the female of the second beret slice are coincide and docked, with lower reinforcement chord member and upper reinforcement chord member Connect first beret slice and second beret slice;Ensure the lower center spiral shell for reinforcing chord member and the upper reinforcement chord member Hole be aligned with male connector and female and both ends screw hole alignment lower boom bolt hole and top boom bolt hole after, successively use bolt Fasten center screw and both ends screw hole;Then, the oblique overlap joint of inclined chord first beret slice and described second are reinforced into bottom At the lower boom of beret slice and fasten, by crossbeam across the lower boom and the bottom reinforce inclined chord after with first shellfish Thunder piece and second beret slice fastening, repeat the above steps, until completing the integral assembling of shellfish thunder steel bridge;
Step 2 hangs pushing manipulation and sets up shellfish Lei Gangqiao:
The outstanding push bracket of system is set up using outstanding pushing manipulation and sets shellfish Lei Gangqiao:
In lock head left bank side pre-buried twice monoblock type anchor slab in parallel, the rolling of several Adjustable horizontals is evenly arranged in along longitudinal direction On the inside of the monoblock type anchor slab, after adjusting flat skid moving base spacing and the shellfish thunder steel bridge equivalent width, using bolt fastening, Flat billowing wheel is placed on the flat skid moving base;
It sets up shellfish thunder steel bridge to be placed on the flat billowing wheel, bowl fastening type position-limited rack is installed, the front end of shellfish thunder steel bridge is in lock head It promotes and sets up under the elevator machine travel of right bank;
Step 3 establishes system of passing the flood period of controlling flood:
It is passed the flood period system using shellfish thunder steel bridge combined type flood control Establishing flood control of passing the flood period:
The parallel pre-buried twice monoblock type anchor slab of difference in lock head two sides, at the same it is pre-buried in the installation of the upstream position of lock head two sides Bolt,
During flood control is passed the flood period, the lower boom of the pre-embedded bolt and the shellfish thunder steel bridge is connected by wirerope, is tensed The wirerope;
Before flood inundation on tracks pontic, bowl fastening type position-limited rack is installed and the monoblock type anchor slab is affixed, removes part bridge floor Plate, and stop the use of the shellfish thunder steel bridge;
Step 4 hangs daraf(reciprocal of farad) and removes shellfish Lei Gangqiao:
Daraf(reciprocal of farad) is hanged using shellfish thunder steel bridge and removes system dismounting shellfish Lei Gangqiao:
The rolling of several Adjustable horizontals is evenly arranged in along longitudinal direction on the inside of the monoblock type anchor slab in lock head left bank side;In lock First right bank is evenly arranged several adjustable rock and rolls along longitudinal direction, and nose girder inclination is connected to the shellfish thunder steel bridge front end and is placed in described On adjustable rock and roll, wherein described;
After adjusting the adjustable rock and roll spacing and the nose girder equivalent width, using bolt fastening;Remove floorings and The shellfish thunder steel bridge of lock head left bank side is placed in the Adjustable horizontal and rolled on, is subsequently mounted bowl fastening type position-limited rack by pedestal;In lock head It is hanged under the traction of hoist engine on left bank and draws the shellfish Lei Gangqiao, remove the shellfish Lei Gangqiao section by section;Finally, described in successively removing Bowl fastening type position-limited rack, Adjustable horizontal rolling and the adjustable rock and roll.
Another invention according to the present invention, the present invention are provided the combined type flood control obtained using above-mentioned construction method and passed the flood period lock First shellfish Lei Gangqiao.
The present invention having the beneficial effect that compared with the prior art:
(1) component of the invention is based on prefabricated steel truss, and batch production standard production, quality is guaranteed, can apply in lock head Work scene fast implements installation and removal, meets the requirement that is open to traffic.
(2) present invention uses lower reinforcement chord member and upper chord member of reinforcing to add the male and female head connecting portion progress part of beret slice By force, it is high to be fitted into degree, does not influence overall structure, node shearing strength is high, and bearing capacity improves.
(3) present invention overlaps the lower boom of beret slice using bottom reinforcement inclined chord, can not only enhance Bailey bridge Bearing capacity, it helps improve erection process in anti-overturning energy.
(4) outstanding push bracket of the invention, which sets and hangs, draws dismounting system to support Bei Leigang using Adjustable horizontal rolling and adjustable rock and roll Bridge, strong applicability, limit plate and bowl fastening type position-limited rack can avoid shellfish thunder steel bridge and derailing occur and topples to fall during outstanding push away, Realize steady set up.
(5) flood control of the invention system of passing the flood period in the mode of lock head two sides pre-embedded bolt tenses shellfish Lei Gangqiao, passes through change The stress system of pontic improves the erosion resistibility of shellfish thunder steel bridge.
Detailed description of the invention
Fig. 1 is the unit shellfish thunder steel bridge of the assembled first shellfish thunder steel bridge of the steel truss of an embodiment according to the present invention before assembly Longitudinal cross-section diagram.
Fig. 2 is the unit shellfish thunder steel bridge of the assembled first shellfish thunder steel bridge of the steel truss of an embodiment according to the present invention after assembly Longitudinal cross-section diagram.
Fig. 3 is longitudinal schematic diagram of the lock head shellfish thunder steel bridge of an embodiment according to the present invention.
Fig. 4 is that the outstanding pushing manipulation of the lock head shellfish thunder steel bridge of an embodiment according to the present invention sets up system longitudinal direction schematic diagram.
Fig. 5 is that the outstanding pushing manipulation of the lock head shellfish thunder steel bridge of an embodiment according to the present invention sets up system transverse direction schematic diagram.
Fig. 6 is that the combined type flood control of the lock head shellfish thunder steel bridge of an embodiment according to the present invention is passed the flood period system top view.
Fig. 7 be the lock head shellfish thunder steel bridge of an embodiment according to the present invention combined type flood control pass the flood period system laterally illustrate Figure.
Fig. 8 is that the outstanding daraf(reciprocal of farad) of the lock head shellfish thunder steel bridge of an embodiment according to the present invention removes longitudinal schematic diagram of system.
Fig. 9 is that the outstanding daraf(reciprocal of farad) of the lock head shellfish thunder steel bridge of an embodiment according to the present invention removes the partial enlargement signal of system Figure.
In figure: the first beret slice of 1-;The second beret slice of 2-;Reinforce chord member under 3-;Reinforce chord member on 4-;Reinforce oblique in the bottom 5- Chord member;6- crossbeam;7- floorings;8- male connector;9- female;10- lower boom;11- top boom;12- lower boom bolt hole;On 13- Chord bolt hole;14- bolt;15- pedestal;16- shellfish Lei Gangqiao;17- lock head left bank;The rolling of 18- Adjustable horizontal;19- bowl fastening type limit Position frame;20- monoblock type anchor slab;21- lock head right bank;22- hoist engine;The flat rolling bottom plate of 23-;The flat skid moving base of 24-;The flat rolling of 25- Idler wheel;26- backing plate;27- wirerope;28- pre-embedded bolt;29- turnbuckle;30- nose girder;The adjustable rock and roll of 31-;32- rock and roll Bottom plate;33- rock and roll glide base;34- rock and roll idler wheel;36- limit plate.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, those of ordinary skill in the art's every other embodiment obtained belong to what the present invention protected Range.
It will be understood by those skilled in the art that in exposure of the invention, term " longitudinal direction ", " transverse direction ", "upper", The orientation of the instructions such as "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside" or position are closed System is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description of the present invention and simplification of the description, without referring to Show or imply that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore above-mentioned art Language is not considered as limiting the invention.
It is understood that term " one " is interpreted as " at least one " or " one or more ", i.e., in one embodiment, The quantity of one element can be one, and in a further embodiment, the quantity of the element can be it is multiple, term " one " is no It can be interpreted as the limitation to quantity.
The present invention provides combined type flood control and passes the flood period its construction method of lock head shellfish thunder steel bridge, and the construction method includes following Step,
Step 1: assembled shellfish Lei Gangqiao:
Using lock head shellfish thunder steel bridge construction assembly shellfish Lei Gangqiao:
As shown in Figures 1 to 3, by identical pair of the male connector (8) of the first beret slice (1) and the female (9) of the second beret slice (2) It connects, lower reinforcement chord member (3) and upper reinforcement chord member (4) is successively embedded in first beret slice (1) and second beret slice (2) On lower boom (10) and top boom (11) groove;
Ensure that lower reinforcement chord member (3) and the upper center screw reinforced on chord member (4) and male connector (8) and female (9) are right Together and after both ends screw hole alignment lower boom bolt hole (12) and top boom bolt hole (13), successively fastened using bolt (14) Center screw and both ends screw hole;
Then, bottom is reinforced to the lower boom of inclined chord (5) oblique overlap joint the first beret slice (1) and the second beret slice (2) (10) it at and fastens, crossbeam (6) is reinforced into inclined chord (5) across lower boom (11) and bottom and is fastened afterwards with beret slice, in repetition Step is stated, until completing the integral assembling of shellfish Lei Gangqiao (16).
2) it hangs pushing manipulation and sets up shellfish Lei Gangqiao:
The outstanding push bracket of system is set up using outstanding pushing manipulation and sets shellfish Lei Gangqiao:
As shown in Figures 4 and 5, in the side pre-buried twice monoblock type anchor slab (20) in parallel of lock head left bank (17), by it is several can The flat rolling (18) of mode is evenly arranged in along longitudinal direction on the inside of monoblock type anchor slab (20), is adjusted the flat skid in left and right along groove (35) and is moved base After the spacing and Bei Lei steel bridge (16) equivalent width of seat (24), the flat skid moving base (24) is fastened using bolt (14), is put down Billowing wheel (25) is placed on the flat skid moving base (24).
It sets up shellfish Lei Gangqiao (16) to be placed on flat billowing wheel (25), install bowl fastening type position-limited rack (19), wherein the bowl buckle Formula position-limited rack (19) is across the shellfish Lei Gangqiao (16), and, the Bei Leigang affixed with the monoblock type anchor slab (5) that is embedded in earth's surface in advance The front end of bridge (16) is connect with the hoist engine (22) of lock head right bank (21) by wirerope (27), the traction in hoist engine (22) Lower propulsion is set up.
When (16) front end shellfish Lei Gangqiao is close to lock head right bank (21), Ruo Beilei steel bridge (16) front height is lower than pedestal (15), backing plate (26) height for adjusting hoist engine (22) can be cooperated, after so that it is accurately fallen bridge to pedestal (15), be laid with floorings (7), wirerope (27), bowl fastening type position-limited rack (19) and Adjustable horizontal rolling (18) are finally successively removed.
It is noted that lock head right bank (21) and lock head left bank (17) they are relative concept herein, it is not to refer to The Adjustable horizontal rolling (18) is necessarily placed at left side.
3) system of passing the flood period of controlling flood is established:
It is passed the flood period system using shellfish thunder steel bridge combined type flood control Establishing flood control of passing the flood period:
As shown in figs. 6-7, in lock head two sides (lock head left bank (17) with lock head right bank (21)), parallel pre-buried twice are whole respectively Body formula anchor slab (20), while pre-embedded bolt (28) being installed in the upstream position of lock head two sides.
During flood control is passed the flood period, pass through the lower boom of wirerope (27) connection pre-embedded bolt (28) He Beilei steel bridge (16) (10), using turnbuckle (29) tense wire rope (27).
Before flood inundation on tracks pontic, bowl fastening type position-limited rack (19) are installed and monoblock type anchor slab (20) is affixed, remove part Floorings (7) on the one hand effectively reduce the stress surface that washes away of pontic, on the other hand reduce pontic buoyancy, be simultaneously stopped shellfish The use of thunder steel bridge (16).
4) it hangs daraf(reciprocal of farad) and removes shellfish Lei Gangqiao:
Daraf(reciprocal of farad) is hanged using shellfish thunder steel bridge and removes system dismounting shellfish Lei Gangqiao:
As shown in figure 8, several Adjustable horizontals are rolled (18) in lock head left bank (17) side is evenly arranged in entirety along longitudinal direction On the inside of formula anchor slab (20);It is evenly arranged several adjustable rock and rolls (31) along longitudinal direction in lock head right bank (21), is adjusted along groove (35) After pedestal (24) spacing that horizontally slips and nose girder (30) equivalent width, fastened using bolt (14);Nose girder (30) are tilted and are connected In shellfish Lei Gangqiao (16) front end, and it is placed on adjustable rock and roll (31);Floorings (7) and pedestal (15) are removed, by very heavy The shellfish Lei Gangqiao (16) of lock head left bank (17) side is placed in Adjustable horizontal rolling (18) by the modes such as top, is subsequently mounted bowl fastening type limit Position frame (19).
Shellfish Lei Gangqiao (16) is connect by wirerope (27) with hoist engine (22), and is hanged under the traction of hoist engine (22) Pontic is drawn, removes shellfish Lei Gangqiao (16) section by section.
Finally, successively removing bowl fastening type position-limited rack (19), Adjustable horizontal rolling (18) and adjustable rock and roll (31), recycling is realized It recycles.
It is noted that the combined type flood control is passed the flood period, lock head shellfish thunder steel bridge passes through above-mentioned lock head shellfish Lei Gangqiao System that structure, outstanding pushing manipulation set up system, combined type flood control is passed the flood period and outstanding daraf(reciprocal of farad) remove system and are respectively completed the splicing of steel bridge, frame If, flood control setting and remove so that combined type flood control is passed the flood period, lock head shellfish thunder steel bridge is high with node bonding strength, outstanding pushes away Set up the feature that steady, flood fighting water scouring capability is strong, convenient and efficient is removed in outstanding drawing and safety coefficient is high.
In step 1), the lock head shellfish thunder steel bridge construction includes:
Oblique string is reinforced in first beret slice (1), the second beret slice (2), lower reinforcement chord member (3), upper reinforcement chord member (4), bottom Bar (5), crossbeam (6), floorings (7) and pedestal (15), wherein first beret slice (1) is with second beret slice (2) Class I-shaped structure, lower boom (10) and top boom (11) including parallel interval setting, first beret slice (1) and described the The middle part of the lower boom (10) of two beret slices (2) is equipped with lower boom bolt hole (12) respectively, first beret slice (1) and institute The middle part for stating the top boom (11) of the second beret slice (2) is equipped with top boom bolt hole (13) respectively, first beret slice (1) It is equipped with identical male connector (8) and female (9) with two end side both ends of second beret slice (2), wherein first beret slice (1) female of male connector (8) and second beret slice (2) passes through the lower reinforcement chord member (3) and the upper reinforcement string respectively Bar (4) connection, and fastening is realized by bolt (14).
Reinforce the lower boom that inclined chord (5) are inclined cross connection the first beret slice (1) and the second beret slice (2) in the bottom (10), the crossbeam (6) reinforces inclined chord (5) across lower boom (10) and the bottom, and the floorings (7) are laid on described On crossbeam (6), wherein the bottom inclined chord (5) rides upon on the lower boom (10), the crossbeam (6) rides upon the bottom Portion reinforces on inclined chord (5), the final assembled complete shellfish Lei Gangqiao (16) of formation.
Close to the male connector (8) of the lower boom (10) of first beret slice (1) and under second beret slice (2) The female (9) of chord member (10) passes through lower reinforcement chord member (3) connection;It is corresponding, close to winding up for the first beret slice (1) The male connector (8) of bar (11) and the female (9) of the top boom (11) close to second beret slice (2) pass through the upper reinforcement string Bar (4) connection.
The lower lower boom (10) reinforced chord member (3) overlap joint and be entrenched in the first beret slice (1) and the second beret slice (2) Groove in, it is described upper to reinforce chord member (4) overlap joint and be entrenched in the top boom of the first beret slice (1) and the second beret slice (2) (11) in groove.
Center screw and end screw hole are formed on the lower reinforcement chord member (3) and the upper reinforcement chord member (4), wherein described It is lower to reinforce chord member (3) and upper end screw hole alignment lower boom bolt hole (12) reinforced on chord member (4) and top boom bolt Hole (13), wherein lower reinforcement chord member (3) and the upper center screw and male connector (8) and female (9) reinforced on chord member (4) Alignment, so that the male connector (8) of first beret slice (1), the female (9) of the second beret slice (2) and lower reinforcement chord member (3) It is fastened between center or upper reinforcement chord member (4) center three by same bolt (14).
In step 2), the outstanding pushing manipulation sets up system and includes:
Shellfish Lei Gangqiao (16), setting are in the Adjustable horizontal rolling (18) of lock head left bank (17), bowl fastening type position-limited rack (19) and whole Body formula anchor slab (20), setting lock head right bank (21) hoist engine (22), wherein the shellfish Lei Gangqiao (16) be placed in it is described adjustable On the flat rolling (18) of formula, the hoist engine (22) is by the front end of wirerope (27) traction shellfish Lei Gangqiao (16) until the Bei Leigang Bridge (16) is fallen on lock head right bank (21) pedestal (15).
The Adjustable horizontal rolling (18) further includes putting down rolling bottom plate (23), the billowing wheel (25) of flat skid moving base (24) peace, The shellfish Lei Gangqiao (16) is placed on the flat billowing wheel (25), flat rolling bottom plate (23) setting of the Adjustable horizontal rolling (18) On lock head left bank (17), flat skid moving base (24) setting is on flat rolling bottom plate (23), on the outside of flat skid moving base (24) Equipped with limit plate.
The hoist engine (22) and backing plate anchor, and the backing plate height is adjustable.
In step 3), the combined type flood control system of passing the flood period includes:
Shellfish Lei Gangqiao (16), pre-embedded bolt (28) and bowl fastening type position-limited rack (19), the pre-embedded bolt (28) are symmetrical arranged In lock head left bank (17) and lock head right bank (21), the pre-embedded bolt (28) passes through turnbuckle (29) and wirerope (27) and shellfish The lower boom (10) of thunder steel bridge (16) tenses, and the bowl fastening type position-limited rack (19) is symmetrical arranged across the shellfish Lei Gangqiao (16) In lock head left bank (17) and lock head right bank (21).The pre-embedded bolt (28) is symmetricly set on lock head left bank (17) and lock head is right Bank (21).
The shellfish Lei Gangqiao (16) removably disposes floorings (7), and the floorings (7) can be passed the flood period period portion in flood control Partition removes.
The bowl fastening type position-limited rack (19) is placed on pedestal (20).
In step 4), the outstanding daraf(reciprocal of farad) removes system and includes:
The Adjustable horizontal of shellfish Lei Gangqiao (16), nose girder (30), setting in lock head left bank (17) rolls (18), bowl fastening type position-limited rack (19), monoblock type anchor slab (20) and hoist engine (22), setting lock head right bank (21) adjustable rock and roll (31).
Wherein the monoblock type anchor slab (20) is embedded in lock head left bank (17) side in advance, and the Adjustable horizontal rolling (18) is placed in The inside of the monoblock type anchor slab (20), the shellfish Lei Gangqiao (1) for being located at lock head left bank (17) side are placed in the Adjustable horizontal rolling (4) on, the bowl fastening type position-limited rack (5) is across shellfish Lei Gangqiao (1), and the foot of the bowl fastening type position-limited rack (19) is with pre-buried to ground The monoblock type anchor slab (20) of table is affixed, the hoist engine (22) by wirerope (27) traction shellfish Lei Gangqiao (16) rear end until The shellfish Lei Gangqiao (16) falls in lock head left bank (17), the shellfish Lei Gangqiao of the nose girder (30) and lock head right bank (21) side (16) it connects, is placed on the adjustable rock and roll (31) in certain inclination angle.
The adjustable rock and roll (31) further includes rock and roll bottom plate (32), rock and roll glide base (33) and rock and roll idler wheel (34), The rock and roll glide base (33) is movably placed on the rock and roll idler wheel (34), and the rock and roll idler wheel (34) is placed in the rock and roll On glide base (33), limit plate (36) are additionally provided on the outside of the rock and roll glide base (33).
The present invention is not limited to above-mentioned preferred forms, anyone can show that other are various under the inspiration of the present invention The product of form, however, make any variation in its shape or structure, it is all that there is skill identical or similar to the present application Art scheme, is within the scope of the present invention.

Claims (10)

  1. The construction method of lock head shellfish thunder steel bridge 1. combined type flood control is passed the flood period, which comprises the following steps:
    Step 1, assembled shellfish Lei Gangqiao:
    Using lock head shellfish thunder steel bridge construction assembly shellfish Lei Gangqiao:
    The male connector (8) of first beret slice (1) and the female (9) of the second beret slice (2) are coincide and docked, with lower reinforcement chord member (3) First beret slice (1) and second beret slice (2) are connected with upper reinforcement chord member (4);
    Ensure that lower reinforcement chord member (3) and the upper center screw for reinforcing chord member (4) are aligned with male connector (8) and female (9), And after both ends screw hole alignment lower boom bolt hole (12) and top boom bolt hole (13), center successively is fastened using bolt (14) Screw hole and both ends screw hole;
    Then, bottom is reinforced under inclined chord (5) oblique overlap joint first beret slice (1) and second beret slice (2) It at chord member (10) and fastens, crossbeam (6) is reinforced into inclined chord (5) afterwards with described the across the lower boom (11) and the bottom One beret slice (1) and second beret slice (2) fastening, repeat the above steps, and spell until completing the whole of shellfish Lei Gangqiao (16) Dress;
    Step 2 hangs pushing manipulation and sets up shellfish Lei Gangqiao:
    The outstanding push bracket of system is set up using outstanding pushing manipulation and sets shellfish Lei Gangqiao:
    In lock head left bank (17) side pre-buried twice monoblock type anchor slab (20) in parallel, along longitudinal direction by several Adjustable horizontals rolling (18) It is even to be arranged on the inside of the monoblock type anchor slab (20), adjust flat skid moving base (24) spacing and shellfish Lei Gangqiao (16) width It after consistent, is fastened using bolt (14), flat billowing wheel (25) is placed on the flat skid moving base (24);
    It sets up shellfish Lei Gangqiao (16) to be placed on the flat billowing wheel (25), install bowl fastening type position-limited rack (19), shellfish Lei Gangqiao (16) Hoist engine (22) traction of the front end in lock head right bank (21) lower promote erection;
    Step 3 establishes system of passing the flood period of controlling flood:
    It is passed the flood period system using shellfish thunder steel bridge combined type flood control Establishing flood control of passing the flood period:
    The parallel pre-buried twice monoblock type anchor slab (20) of difference in lock head two sides, at the same it is pre-buried in the installation of the upstream position of lock head two sides Bolt (28),
    During flood control is passed the flood period, the lower edge of the pre-embedded bolt (28) and the shellfish Lei Gangqiao (16) is connected by wirerope (27) Bar (10) tenses the wirerope (27);
    Before flood inundation on tracks pontic, bowl fastening type position-limited rack (19) are installed and the monoblock type anchor slab (20) is affixed, remove part Floorings (7), and stop the use of the shellfish Lei Gangqiao (16);
    Step 4 hangs daraf(reciprocal of farad) and removes shellfish Lei Gangqiao:
    Daraf(reciprocal of farad) is hanged using shellfish thunder steel bridge and removes system dismounting shellfish Lei Gangqiao:
    Several Adjustable horizontals are rolled into (18) in lock head left bank (17) side and are evenly arranged in the monoblock type anchor slab (20) along longitudinal direction Inside;It is evenly arranged several adjustable rock and rolls (31) along longitudinal direction in lock head right bank (21), nose girder (30) inclination is connected to the shellfish Thunder steel bridge (16) front end is simultaneously placed on the adjustable rock and roll (31),;
    After adjusting adjustable rock and roll (31) spacing and the nose girder (30) equivalent width, fastened using bolt (14);It removes The shellfish Lei Gangqiao (16) of lock head left bank (17) side is placed on the Adjustable horizontal rolling (18) by floorings (7) and pedestal (15), It is subsequently mounted bowl fastening type position-limited rack (19);
    It is hanged under the traction of the hoist engine (22) on lock head left bank (17) and draws the shellfish Lei Gangqiao (16), remove the shellfish thunder section by section Steel bridge (16);
    Finally, successively removing the bowl fastening type position-limited rack (19), Adjustable horizontal rolling (18) and the adjustable rock and roll (31).
  2. The construction method of lock head shellfish thunder steel bridge 2. combined type flood control according to claim 1 is passed the flood period, which is characterized in that
    In the step 2, the hoist engine (22) is placed on backing plate (26), the backing plate (26) height is adjusted, when described After shellfish Lei Gangqiao (16) falls bridge to pedestal (15), it is laid with floorings (7).
  3. The construction method of lock head shellfish thunder steel bridge 3. combined type flood control according to claim 1 is passed the flood period, which is characterized in that described Bowl fastening type position-limited rack (19) is and affixed with the monoblock type anchor slab (20) that is embedded in earth's surface in advance across the shellfish Lei Gangqiao (16), The shellfish Lei Gangqiao (16) and the hoist engine (22) are connected by wirerope (27).
  4. The construction method of lock head shellfish thunder steel bridge 4. combined type flood control according to claim 1 is passed the flood period, works as in the step 3 In, the wirerope (27) is tensed using turnbuckle (29).
  5. The construction method of lock head shellfish thunder steel bridge 5. combined type flood control according to claim 1 is passed the flood period, works as in the step 1 In, the lower reinforcement chord member (3) and the upper reinforcement chord member (4) are successively embedded in first beret slice (1) and described second The lower boom (10) of beret slice (2) and the groove of top boom (11).
  6. The construction method of lock head shellfish thunder steel bridge 6. combined type flood control according to claim 1 is passed the flood period, works as in the step 1 In, the middle part of the lower boom (10) on the lock head shellfish thunder steel bridge construction assembly shellfish thunder steel bridge is equipped with the lower edge respectively Bar bolt hole (12), the middle part of the top boom (11) are equipped with the top boom bolt hole (13), the lower reinforcement string respectively The center screw and the end screw hole are formed on bar (3) and the upper reinforcement chord member (4), first beret slice (1) Male connector (8), the female (9) of the second beret slice (2) and lower reinforcement chord member (3) center or upper reinforcement chord member (4) center It is fastened between three by same bolt (14).
  7. The construction method of lock head shellfish thunder steel bridge 7. combined type flood control according to claim 1 is passed the flood period, which is characterized in that in institute It states in step 2, it includes: that the Adjustable horizontal rolling (18) includes flat rolling bottom plate (23), flat skid that the outstanding pushing manipulation, which sets up system, Moving base (24) and the flat billowing wheel (25), the shellfish Lei Gangqiao (16) is placed on the flat billowing wheel (25), described flat Bottom plate (23) to be rolled to be arranged on lock head left bank (17), the flat skid moving base (24) is arranged on the flat rolling bottom plate (23), And outside is equipped with limit plate.
  8. The construction method of lock head shellfish thunder steel bridge 8. combined type flood control according to claim 1 is passed the flood period, which is characterized in that in institute It states in step 3, the combined type flood control is passed the flood period in system, and the bowl fastening type position-limited rack (19) is across the shellfish Lei Gangqiao (16), the bowl fastening type position-limited rack (19) and the pre-embedded bolt (28) are symmetricly set on lock head left bank (17) and lock head right bank (21), the floorings (7) are detachably positioned on the shellfish Lei Gangqiao (16).
  9. The construction method of lock head shellfish thunder steel bridge 9. combined type flood control according to claim 1 is passed the flood period, which is characterized in that described In outstanding daraf(reciprocal of farad) dismounting system, the adjustable rock and roll (31) includes rock and roll bottom plate (32), rock and roll glide base (33) and rock and roll rolling It takes turns (34), the rock and roll glide base (33) is movably placed on the rock and roll idler wheel (34), and the rock and roll idler wheel (34) is placed in On the rock and roll glide base (33), limit plate (36) are additionally provided on the outside of the rock and roll glide base (33).
  10. The lock head shellfish Lei Gangqiao 10. combined type flood control is passed the flood period, which is characterized in that control flood according to claim 1 to combined type described in 9 The construction method of lock head shellfish thunder steel bridge of passing the flood period constructs to obtain.
CN201811582481.6A 2018-12-24 2018-12-24 Combined type flood control flood gate first bailey steel bridge and construction method Active CN109653076B (en)

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