CN109914253A - A kind of aerial Dock With Precision Position system and method for suspension bridge girder steel - Google Patents

A kind of aerial Dock With Precision Position system and method for suspension bridge girder steel Download PDF

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Publication number
CN109914253A
CN109914253A CN201910211227.3A CN201910211227A CN109914253A CN 109914253 A CN109914253 A CN 109914253A CN 201910211227 A CN201910211227 A CN 201910211227A CN 109914253 A CN109914253 A CN 109914253A
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China
Prior art keywords
girder steel
plate
reaction frame
fixed frame
jack
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CN201910211227.3A
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Chinese (zh)
Inventor
刘钊
石强
周俭
蒋德林
陈宵梅
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Road and Bridge International Co Ltd
Road and Bridge East China Engineering Co Ltd
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Road and Bridge International Co Ltd
Road and Bridge East China Engineering Co Ltd
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Priority to CN201910211227.3A priority Critical patent/CN109914253A/en
Publication of CN109914253A publication Critical patent/CN109914253A/en
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Abstract

The present invention provides a kind of aerial Dock With Precision Position system and method for suspension bridge girder steel, mounting and fixing support and reaction frame is distinguished on two girder steel butt end top booms to be docked, and connected fixed frame with reaction frame with pull rod;Pull rod is fastened in fixed frame end with nut, and box pushing tow bracket, jack, backing plate and the fastening nut that is spirally connected are sequentially passed through after counter-force frame end is spirally connected an auxiliary nut;Jack makes the docking close to each other of two girder steels by drawing pull bar;Chain block is installed on a girder steel top surface two sides lifting lug, each chain block connects oblique pair on another girder steel of lifting lug by wirerope, wirerope is tightened in docking operation always to resist wind load.The present invention makes full use of the stroke controllability of jack, longitudinal direction to fast implement the aerial Dock With Precision Position of girder steel to the lateral stability of drawing device, the validity of lateral wind-proof device, reduces the steel beam lifting time, saves construction cost.

Description

A kind of aerial Dock With Precision Position system and method for suspension bridge girder steel
Technical field
The invention belongs to suspension bridge construction technical fields, when being related to suspension bridge steel beam lifting, realize that suspension bridge girder steel section is empty The system and method for middle Dock With Precision Position.
Background technique
During suspension bridge steel beam lifting, adjacent beam section is docked in the air.Current suspension bridge girder steel is right in the air It connects and chain block is mostly used to construct, as shown in Figure 1, being separately connected one on two lifting lifting lugs 3 of 1 two sides of the first girder steel section Chain block 4, each chain block 4 connect the lifting lug of 2 the same side of the second beam section by wirerope 5, by tightening chain block Realization docking is mutually drawn close into the butt end for drawing two beam sections.But chain block is flexible structure, is influenced vulnerable to direction across bridge wind load, Occur transversion malposition phenomenon when girder steel being caused to dock, needs frequently to adjust posture;And the chain block construction operation time is long, to drawing Low efficiency increases the time cost that girder steel docks in the air.
Summary of the invention
Lack effective lateral stability measure the object of the present invention is to dock in the air for current suspension bridge girder steel, it is longitudinal The problems such as to drawing effect low, pose adjustment is frequent, causes the aerial Dock With Precision Position of girder steel difficult, and the activity duration is long, providing one kind can The system for quickly and efficiently realizing the aerial Dock With Precision Position of girder steel, reduces the activity duration.
The aerial Dock With Precision Position system of a kind of suspension bridge girder steel provided by the invention, it is characterised in that: on the first girder steel two Chord member butt end top surface sets a fixed frame respectively, in the two top boom butt end top surface of the second girder steel to dock with the first girder steel point A reaction frame is not set, is connected between the fixed frame and reaction frame of two girder steel the same sides by pull rod, described pull rod one end is worn First fastening nut that is spirally connected crossed after the fixed frame, the pull rod other end passes through the auxiliary nut that is first spirally connected after the reaction frame, then Sequentially pass through a box pushing tow bracket, a centre-hole jack and a backing plate and second fastening nut that is spirally connected;On the first girder steel top Face two sides are separately connected a chain block on two lifting lugs of butt end, each chain block on the second girder steel close to right One for connecing end is connect with its oblique pair lifting lug by wirerope.
The above-mentioned aerial Dock With Precision Position system of suspension bridge girder steel, further comprises following technical characteristic:
The fixed frame includes a fixed frame bottom plate, weld on the fixed frame bottom plate at least two pieces be parallel to each other and with it is solid Determine the vertical transverse slat of frame bottom plate, each transverse slat is equipped with through tension rod thru-hole, and two pieces of welding is vertical with transverse slat between two transverse slats indulges Plate;The fixed frame bottom plate is fixedly connected by bolt with the first girder steel top boom top surface, and the stringer board of fixed frame is docked with girder steel Direction is parallel, and one end of the pull rod is passed through from the gap between the tension rod thru-hole and two stringer boards on transverse slat, and in drag link end Portion is spirally connected the first fastening nut.
The reaction frame includes a reaction frame bottom plate, and two pieces are welded on the reaction frame bottom plate and is parallel to each other and and counter-force The vertical strength plate of frame bottom plate welds a strength plate connecting plate vertical with strength plate and reaction frame between two strength plate sides;It is described anti- Power frame bottom plate is fixedly connected by bolt with the second girder steel top boom top surface, and two strength plates are parallel with girder steel abutting direction, the drawing After gap of the other end of bar between two strength plate of reaction frame passes through the strength plate connecting plate of reaction frame, at strength plate connecting plate Be spirally connected the auxiliary nut, then sequentially passes through the box pushing tow bracket, centre-hole jack and backing plate;The box pushing tow branch Frame is a square box structure, and opposite both ends, the other end closed at one end is open, and open end acts against the strength plate of reaction frame It covers in mouth, offers on box pushing tow rack side plate or top plate for rotating auxiliary on connecting plate and by the auxiliary nut The hand hole of nut;One end of the centre-hole jack acts against the closed end of box pushing tow bracket, and the backing plate is by being spirally connected The other end of centre-hole jack is acted against in the second fastening nut of tie rod end.
The fixed frame is mounted on the inside of the first girder steel top boom and close to top boom front end, and the reaction frame is mounted on Inside and close top boom upper junction plate rear portion on second girder steel top boom.
The method that two girder steels dock in the air is carried out using the aerial Dock With Precision Position system of above-mentioned suspension bridge girder steel, including following Step:
(1) in the butt end top surface of two top boom of the first girder steel, a fixed frame is installed respectively, in two top boom of the second girder steel Butt end top surface is installed by one reaction frame respectively;
When (2) first girder steels and the second girder steel dock in the air, worn between the fixed frame and reaction frame of two girder steel the same sides A pull rod is inserted, described pull rod one end is spirally connected the first fastening nut after passing through the fixed frame, and the pull rod other end passes through the counter-force It is first spirally connected after frame and an auxiliary nut and rotates auxiliary nut close to reaction frame, then sequentially pass through a box pushing tow bracket, a punching Formula jack and a backing plate and second fastening nut that is spirally connected;The box pushing tow bracket is a square box structure, opposite The both ends other end closed at one end is open, and open end acts against the upper of reaction frame and covers on the auxiliary nut in mouth, in case The hand hole for rotating auxiliary nut is offered on formula pushing tow rack side plate or top plate;One end of the centre-hole jack abuts against In the closed end of box pushing tow bracket, the backing plate acts against the other end of centre-hole jack, and tightens the second fastening nut Backing plate and the centre-hole jack other end are held out against;
(3) chain block, each hand are separately connected on two lifting lugs in the first girder steel top surface two sides close to butt end Cucurbit is drawn to connect with its oblique pair lifting lug by wirerope on the second girder steel close to one of butt end, two lifting ropes are mutually handed over Fork;
(4) starting jack loads one stroke of pushing tow, and drawing pull bar keeps two girder steels close to each other, and two girder steels are close to each other Operating two chain blocks in the process makes two wirerope be in tightening state always, to resist lateral wind load;
(5) after one stroke of jack pushing tow, due to the relative movement of pull rod and girder steel, the auxiliary nut on pull rod is remote From reaction frame, rotating auxiliary nut by the hand hole on box pushing tow bracket at this time makes it again close to reaction frame, then very heavy Top unloading, and rotating the second fastening nut holds out against jack both ends again with box pushing tow bracket and backing plate;
(6) it is again started up jack, is repeated step (4) and (5), until the docking of two girder steels is completed;Dismantle fixed frame, counter-force Frame and chain block.
Compared to traditional chain block to the mode of drawing, the advantage of the system is: making full use of hydraulic punching very heavy The stroke controllability on top, it is longitudinal to the lateral stability of drawing device, that the validity of lateral wind-proof device fast implements girder steel is aerial Dock With Precision Position reduces the steel beam lifting time, saves construction cost.
Detailed description of the invention
Fig. 1 is the schematic diagram of existing chain block girder steel docking system;
Fig. 2 is docking system overlooking structure diagram of the invention;
Fig. 3 is the connection structure top view of fixed frame and reaction frame of the invention;
Fig. 4 is the connection structure side view of fixed frame and reaction frame of the invention;
Fig. 5 is the overlooking structure diagram of fixed frame;
Fig. 6 is the side structure schematic view of fixed frame;
Fig. 7 is the overlooking structure diagram of reaction frame;
Fig. 8 is the side structure schematic view of reaction frame;
Fig. 9 is the status diagram after jack load.
Specific embodiment
As shown in Figure 2, shown in Fig. 3, Fig. 4, a kind of aerial Dock With Precision Position system of suspension bridge girder steel provided by the present invention, Two top booms, the 101 butt end top surface of first girder steel 1 sets a fixed frame 6 respectively, in the second girder steel 2 to dock with the first girder steel Two top booms, 201 butt end top surface sets a reaction frame 7 respectively, leads between the fixed frame 6 and reaction frame 7 of two girder steel the same sides The connection of pull rod 8 is crossed, described 8 one end of pull rod is spirally connected the first fastening nut 9 after passing through the fixed frame 6, and 8 other end of pull rod passes through institute The auxiliary nut 10 that is first spirally connected after reaction frame 7 is stated, then sequentially passes through a box pushing tow bracket 11, a centre-hole jack 12 and one Backing plate 13 and second fastening nut 14 that is spirally connected;It is separately connected on two lifting lugs 3 of the 1 top surface two sides of the first girder steel close to butt end One on one chain block 4, each chain block 4 and the second girder steel 2 close to butt end passes through steel wire with its oblique pair lifting lug 3 5 connection of rope.
The structure of the fixed frame 6 is as shown in Figure 5, Figure 6, including a fixed frame bottom plate 61, on the fixed frame bottom plate 61 At least two pieces of welding is parallel to each other and the transverse slat 62 vertical with fixed frame bottom plate, and each transverse slat 62 is equipped with through tension rod thru-hole 63, two pieces of stringer boards 64 vertical with transverse slat are welded between two transverse slats.
The fixed frame bottom plate 61 is fixedly connected by bolt with 101 top surface of top boom of the first girder steel 1, fixed frame 6 Stringer board 63 is parallel with girder steel abutting direction, and one end of the pull rod 8 is between the tension rod thru-hole and two stringer boards 64 on transverse slat 62 It passes through in gap, and is spirally connected the first fastening nut 9 in tie rod end.
The structure of the reaction frame 7 is as shown in Figure 7, Figure 8, including a reaction frame bottom plate 71, on the reaction frame bottom plate 71 It is welded with two pieces to be parallel to each other and the strength plate 72 vertical with reaction frame bottom plate, welding one is with strength plate and instead between two strength plates, 72 side The vertical strength plate connecting plate 73 of power frame.
The reaction frame bottom plate 71 is fixedly connected by bolt with 201 top surface of top boom of the second girder steel 2, two strength plates 72 with Girder steel abutting direction is parallel, and gap of the other end of the pull rod 8 between two strength plate 72 of reaction frame passes through the strength plate of reaction frame After connecting plate 73, in the auxiliary nut 10 that is spirally connected at strength plate connecting plate 73, then the box pushing tow bracket is sequentially passed through 11, centre-hole jack 12 and backing plate 13 and second fastening nut 14 that is spirally connected.
The box pushing tow bracket 11 is a square box structure, including top plate and bottom plate 2 and both side plate, opposite two End, one end are equipped with end plate and close the end seal, and the other end is opening, and open end acts against the strength plate connecting plate 73 of reaction frame On, and the auxiliary nut 10 is covered in mouth, it is offered on box pushing tow rack side plate or top plate for rotating auxiliary spiral shell The hand hole of mother 10;The pull rod 8 is then passed through punching jack 12 and backing plate 13 after passing through box pushing tow bracket 11, is finally spirally connected the Two fastening nuts 14 tighten the second nut 14, make the both ends of centre-hole jack 12 end with box pushing tow bracket 11 respectively Plate and backing plate 13 are held out against.
When mounting and fixing support 6 and reaction frame 7, fixed frame 6 is mounted on the inside of the first girder steel top boom 101 and close to upper Reaction frame 7 is mounted on inside and the upper junction plate rear portion of close top boom on the second girder steel top boom 201, just by chord member front end The connecting plate of the second girder steel top boom 201 is inserted into the socket of the first girder steel top boom 101 when docking.
When carrying out the docking of two girder steels using the aerial Dock With Precision Position system of above-mentioned suspension bridge girder steel, the specific method is as follows:
(1) as shown in Figure 2, Figure 3, Figure 4, in the butt end top surface of 1 liang of top boom 101 of the first girder steel, it is solid that one is installed respectively Determine frame 6, one reaction frame 7 is installed respectively in 2 liang of top booms of the second girder steel, 201 butt end top surface;
When (2) first girder steels 1 and the docking in the air of the second girder steel 2, two girder steel the same sides fixed frame 6 and reaction frame 7 it Between intert a pull rod 8, described pull rod one end is spirally connected the first fastening nut 9 after passing through the fixed frame, and the pull rod other end passes through institute It states and is first spirally connected an auxiliary nut 10 after reaction frame 7 and rotates auxiliary nut close to reaction frame, then sequentially pass through a box pushing tow branch Frame 11, a centre-hole jack 12 and a backing plate 13 and second fastening nut 14 that is spirally connected;The box pushing tow bracket is one rectangular Body structure, the opposite both ends other end closed at one end is open, and open end acts against the upper of reaction frame and by the auxiliary Nut cover offers the hand hole for rotating auxiliary nut in mouth on box pushing tow rack side plate or top plate;The punching One end of formula jack acts against the closed end of box pushing tow bracket, and the backing plate acts against the other end of centre-hole jack, And it tightens the second fastening nut and holds out against backing plate and the centre-hole jack other end;
(3) it is separately connected a chain block 4 on two lifting lugs 3 in 1 top surface two sides of the first girder steel close to butt end, each Chain block 4 is connect with close to butt end on the second girder steel 2 and with its oblique pair lifting lug by wirerope 5, and two wirerope 5 are mutually Intersect;
(4) starting jack 12 loads one stroke of pushing tow, and drawing pull bar 8 keeps two girder steels close to each other, and two girder steels are mutual Two chain blocks 4 are operated in approach process makes two wirerope 5 always in tightening state, to resist lateral wind load;
(5) state after 12 pushing tow of jack, one stroke as shown in figure 9, due to pull rod 8 movement, it is auxiliary on pull rod 8 Help nut 10 far from reaction frame 7, rotating auxiliary nut 10 by the hand hole on box pushing tow bracket 11 at this time leans on it again Nearly reaction frame 7, then jack 12 unloads, and rotate the second fastening nut 14 make 12 both ends of jack respectively with box pushing tow branch Frame 11 and backing plate 13 are held out against again;
(6) it is again started up jack 12, repeat the above steps (4) and (5), until the company on the second girder steel top boom 201 Fishplate bar is fully inserted into 101 socket of the first girder steel top boom, is connected the top boom of the first girder steel 1 and the second girder steel 2 by bolt It connects, the docking of two girder steels is completed, and fixed frame, reaction frame and chain block are finally dismantled.

Claims (8)

1. a kind of aerial Dock With Precision Position system of suspension bridge girder steel, it is characterised in that: in two top boom butt end top surface of the first girder steel A fixed frame is set respectively, sets a reaction frame respectively in the two top boom butt end top surface of the second girder steel to dock with the first girder steel, It is connected between the fixed frame and reaction frame of two girder steel the same sides by pull rod, after described pull rod one end passes through the fixed frame Be spirally connected the first fastening nut, and the pull rod other end is first spirally connected an auxiliary nut after passing through the reaction frame, then sequentially passes through a box Pushing tow bracket, a centre-hole jack and a backing plate and second fastening nut that is spirally connected;In the first girder steel top surface two sides close to docking Be separately connected a chain block on two lifting lugs at end, on each chain block and the second girder steel one of close butt end and its Oblique pair of lifting lug is connected by wirerope.
2. the aerial Dock With Precision Position system of suspension bridge girder steel according to claim 1, it is characterised in that: the fixed frame includes One fixed frame bottom plate welds at least two pieces on the fixed frame bottom plate and is parallel to each other and the transverse slat vertical with fixed frame bottom plate, respectively Transverse slat is equipped with through tension rod thru-hole, welds two pieces of stringer boards vertical with transverse slat between two transverse slats;The fixed frame bottom plate passes through Bolt is fixedly connected with the first girder steel top boom top surface, and the stringer board of fixed frame is parallel with girder steel abutting direction, and the one of the pull rod End is passed through from the gap between the tension rod thru-hole and two stringer boards on transverse slat, and is spirally connected the first fastening nut in tie rod end.
3. the aerial Dock With Precision Position system of suspension bridge girder steel according to claim 1, it is characterised in that: the reaction frame includes One reaction frame bottom plate is welded with two pieces on the reaction frame bottom plate and is parallel to each other and the strength plate vertical with reaction frame bottom plate, two strength A strength plate connecting plate vertical with strength plate and reaction frame is welded between plate side;The reaction frame bottom plate passes through bolt and second Girder steel top boom top surface is fixedly connected, and two strength plates are parallel with girder steel abutting direction, and the other end of the pull rod is along two strength of reaction frame After gap between plate passes through the strength plate connecting plate of reaction frame, in the auxiliary nut that is spirally connected at strength plate connecting plate, then according to It is secondary to pass through the box pushing tow bracket, centre-hole jack and backing plate;The box pushing tow bracket is a square box structure, Opposite both ends, the other end closed at one end is open, and open end acts against on the strength plate connecting plate of reaction frame and by the auxiliary Nut cover offers the hand hole for rotating auxiliary nut in mouth on box pushing tow rack side plate or top plate;The punching One end of formula jack acts against the closed end of box pushing tow bracket, and the backing plate is fastened by being screwed onto the second of tie rod end Nut acts against the other end of centre-hole jack.
4. the aerial Dock With Precision Position system of suspension bridge girder steel according to claim 1, it is characterised in that: the fixed frame installation In the inside of the first girder steel top boom and close to top boom front end, the reaction frame is mounted on the second girder steel top boom inside simultaneously Close to top boom upper junction plate rear portion.
5. a kind of aerial Dock With Precision Position method of suspension bridge girder steel, it is characterised in that:
(1) in the butt end top surface of two top boom of the first girder steel, a fixed frame is installed respectively, is docked in two top boom of the second girder steel End top surface is installed by one reaction frame respectively;
When (2) first girder steels and the second girder steel dock in the air, one is interted between the fixed frame and reaction frame of two girder steel the same sides Pull rod, described pull rod one end are spirally connected the first fastening nut after passing through the fixed frame, after the pull rod other end passes through the reaction frame It is first spirally connected and an auxiliary nut and rotates auxiliary nut close to reaction frame, then sequentially pass through a box pushing tow bracket, a punching thousand Jin top and a backing plate and second fastening nut that is spirally connected;The box pushing tow bracket is a square box structure, opposite both ends The other end closed at one end is open, and open end acts against the upper of reaction frame and covers on the auxiliary nut in mouth, on box top Push away the hand hole offered on rack side plate or top plate for rotating auxiliary nut;One end of the centre-hole jack acts against case The closed end of formula pushing tow bracket, the backing plate act against the other end of centre-hole jack, and tightening the second fastening nut will pad Plate and the centre-hole jack other end are held out against;
(3) it is separately connected a chain block on two lifting lugs in the first girder steel top surface two sides close to butt end, each pulls calabash Reed is connect with its oblique pair lifting lug by wirerope on the second girder steel close to one of butt end, and two lifting ropes intersect;
(4) starting jack loads one stroke of pushing tow, and drawing pull bar keeps two girder steels close to each other, two girder steels process close to each other Two chain blocks of middle operation make two wirerope be in tightening state always, to resist lateral wind load;
(5) after one stroke of jack pushing tow, due to the relative movement of pull rod and girder steel, the auxiliary nut on pull rod is separate anti- Power frame, rotating auxiliary nut by the hand hole on box pushing tow bracket at this time makes it again close to reaction frame, and then jack unloads It carries, and rotating the second fastening nut holds out against jack both ends again with box pushing tow bracket and backing plate;
(6) it is again started up jack, is repeated step (4) and (5), until the docking of two girder steels is completed;Dismantle fixed frame, reaction frame with And chain block.
6. the aerial Dock With Precision Position method of suspension bridge girder steel according to claim 1, it is characterised in that: the fixed frame includes One fixed frame bottom plate welds at least two pieces on the fixed frame bottom plate and is parallel to each other and the transverse slat vertical with fixed frame bottom plate, respectively Transverse slat is equipped with through tension rod thru-hole, welds two pieces of stringer boards vertical with transverse slat between two transverse slats;The fixed frame bottom plate passes through Bolt is fixedly connected with the first girder steel top boom top surface, and the stringer board of fixed frame is parallel with girder steel abutting direction, and the one of the pull rod End is passed through from the gap between the tension rod thru-hole and two stringer boards on transverse slat, and is spirally connected the first fastening nut in tie rod end.
7. the aerial Dock With Precision Position method of suspension bridge girder steel according to claim 1, it is characterised in that: the reaction frame includes One reaction frame bottom plate is welded with two pieces on the reaction frame bottom plate and is parallel to each other and the strength plate vertical with reaction frame bottom plate, two strength A strength plate connecting plate vertical with strength plate and reaction frame is welded between plate side;The reaction frame bottom plate passes through bolt and second Girder steel top boom top surface is fixedly connected, and two strength plates are parallel with girder steel abutting direction, and the other end of the pull rod is along two strength of reaction frame After gap between plate passes through the strength plate connecting plate of reaction frame, in the auxiliary nut that is spirally connected at strength plate connecting plate, then according to It is secondary to pass through the box pushing tow bracket, centre-hole jack and backing plate and second fastening nut that is spirally connected.
8. the aerial Dock With Precision Position method of suspension bridge girder steel according to claim 1, it is characterised in that: install the fixed frame When, it is installed in the inside of the first girder steel top boom and close to top boom front end;When the reaction frame is installed, it is installed in Inside and close top boom upper junction plate rear portion on second girder steel top boom.
CN201910211227.3A 2019-03-20 2019-03-20 A kind of aerial Dock With Precision Position system and method for suspension bridge girder steel Pending CN109914253A (en)

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于祥敏等: "贵黔高速鸭池河特大桥钢桁梁施工关键技术", 《桥梁建设》, no. 4, pages 107 - 112 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110258358A (en) * 2019-07-31 2019-09-20 河南省交通规划设计研究院股份有限公司 Using hanging the method for pushing away rack construction And of Varying Depth girder steel
CN110258359A (en) * 2019-07-31 2019-09-20 河南省交通规划设计研究院股份有限公司 The And of Varying Depth girder steel construction method of rack construction is pushed away by hanging
CN110886190A (en) * 2019-12-10 2020-03-17 武船重型工程股份有限公司 Port roof pressure adjusting device and steel box girder cable-stayed bridge
CN113718622A (en) * 2021-09-03 2021-11-30 中交路桥华东工程有限公司 Steel box girder structure and construction method
WO2023030123A1 (en) * 2021-09-03 2023-03-09 中交路桥华东工程有限公司 Steel box girder structure and construction method therefor

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Application publication date: 20190621