CN112030768A - Bailey beam suspension structure and construction method applying same - Google Patents
Bailey beam suspension structure and construction method applying same Download PDFInfo
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- CN112030768A CN112030768A CN202010935060.8A CN202010935060A CN112030768A CN 112030768 A CN112030768 A CN 112030768A CN 202010935060 A CN202010935060 A CN 202010935060A CN 112030768 A CN112030768 A CN 112030768A
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D18/00—Bridges specially adapted for particular applications or functions not provided for elsewhere, e.g. aqueducts, bridges for supporting pipe-lines
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
- E01D2101/24—Concrete
- E01D2101/26—Concrete reinforced
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Abstract
The invention provides a Bailey beam suspension structure and a construction method applying the same, wherein the construction method comprises the following steps: (1) construction preparation; (2) constructing pier columns and pier caps; (3) manufacturing a sand box and a suspension type end bracket; (4) installing a sand box and a jack; (5) hoisting a suspension type end support; (6) the suspension type end bracket is connected in a reinforcing way; (7) hoisting the Bailey beam; (8) the aqueduct concrete is poured, a suspension type end support structure is adopted for construction, working procedures such as excavation and treatment of a steel pipe supporting foundation, pre-embedding of steel pipe supporting legs, steel pipe hoisting installation, I-shaped steel beam installation and support pre-pressing are not needed, construction of a template and follow-up work can be carried out only by directly arranging the Bailey beam on the pier cap, construction procedures are simplified well, construction progress can be accelerated, construction cost can be saved, and good economic and technical benefits are achieved.
Description
Technical Field
The invention relates to the field of aqueduct construction, in particular to a Bailey beam suspension structure and a construction method thereof, which are mainly suitable for aqueduct construction with complicated geological soil conditions and difficult development of steel pipe full formwork.
Background
The aqueduct is a common building for water delivery engineering to span valleys, depressions and ditches, the height of a general pier body is 20-33 m, the single span length of the aqueduct body is 20-30 m, the height of the top of the aqueduct body from the ground is large, and the construction difficulty is large. When the aqueduct passes through the paddy field and the ditch, the mode of supporting steel frame pipe full framing scaffold, movable formwork and the like is not suitable to be arranged.
In the traditional aqueduct construction process, the working procedures of excavation and treatment of a Bailey beam supporting foundation, pre-embedding of steel pipe support legs, steel pipe hoisting installation, I-shaped steel beam installation, support pre-pressing and the like need to be carried out, the requirement on foundation conditions is high, the construction is complex, and the construction cost is high.
In view of this, in order to improve the construction efficiency of the beret beam at the bottom of the aqueduct, reduce the processes, and satisfy the operability under most geological conditions, the invention provides a simple and effective beret beam suspension structure and a construction method using the same.
Disclosure of Invention
The invention aims to provide a Bailey beam suspension structure and a construction method applying the Bailey beam suspension structure, which can improve the construction efficiency of the Bailey beam at the bottom of an aqueduct, directly suspend and support a Bailey frame on the top of a pier as much as possible, do not need to carry out the procedures of ground hardening treatment between two piers and the like, and have better technical and economic benefits.
The technical scheme provides a construction method applying a Bailey beam suspension structure, which comprises the following steps:
step 1: construction preparation: before construction, measurement paying-off is carried out according to design requirements, the positions and the sizes of pier columns and pier caps are determined, the number and the span of the Bailey beams are designed, the size of a suspension type end support and the number and the size of sand boxes are designed, and water supply, power supply and access early-stage work are carried out;
step 2: pier stud and pier cap construction: binding a pier column and a reinforcement cage of a pier cap according to the designed position and size, welding a shaped embedded part according to the designed position in the reinforcement binding process of the pier cap, and welding a pull rod with threads at one end with the shaped embedded part together, wherein the shaped embedded part is pre-embedded in the side edge of the pier cap, and meanwhile welding the embedded part on the reinforcement cage top layer of the pier cap, wherein the embedded part is pre-embedded in the top side of the pier cap, erecting a mold to pour concrete, one end of the pull rod with threads extends out of the concrete outside of the pier cap, and a steel ring at the upper part of the embedded part is positioned at the top of the concrete of the pier cap;
and step 3: manufacturing a sand box and a suspension type end bracket;
and 4, step 4: and (3) installing a sand box and a jack: after the strength of pier cap concrete reaches the design requirement, after top sundries are cleaned, marking the positions of a sand box and a jack, paving a sand box bottom steel plate on the pier cap top, placing the sand box on the sand box bottom steel plate according to the marked positions, installing a plurality of jacks, placing sand box top steel plates on the tops of the sand box and the jack, and tensioning a steel ring on the lower part of the sand box top steel plate and a steel ring on an embedded part through a steel rope;
and 5: hoisting a suspension type end support: lifting the suspension type end support to move to the upper part of the sand box, hanging the overhanging end of the upper chord of the suspension type end support on a top steel plate of the sand box, and welding a pull rod base plate with a bolt hole on a vertical web member of the suspension type end support;
step 6: the suspension type end bracket is strengthened and connected: aligning a bolt hole of an upper chord of the suspension type end support with a bolt hole of a steel top plate of the sand box, penetrating a pull rod through a bolt hole of a pull rod base plate, inserting a high-strength bolt into the bolt hole of the upper chord of the suspension type end support, and screwing a bolt on a threaded head at the end part of the pull rod;
and 7: hoisting the Bailey beam: after the suspension type end bracket is installed, the Bailey beam is lifted, two ends of the Bailey beam are placed on the suspension type end bracket, and the Bailey beam upper chord and the Bailey beam lower chord are fixed through the Bailey beam limiting fixed end;
and 8: pouring aqueduct concrete: and after the Bailey beam is installed, paving an aqueduct formwork system on the Bailey beam.
According to another aspect of the invention, a Bailey beam suspension structure is provided, which comprises a sand box supporting structure and a suspension type end bracket, wherein the sand box supporting structure comprises a sand box bottom steel plate arranged at the top of a pier cap, sand boxes and jacks arranged on the sand box bottom steel plate at intervals, and sand box top steel plates arranged at the tops of the sand boxes and the jacks; the suspension type end support comprises a hollow frame structure which is formed by enclosing a suspension type end support upper chord, a suspension type end support vertical web member and a suspension type end support lower chord member, wherein the suspension type end support upper chord and the suspension type end support lower chord member extend towards opposite directions relative to the frame structure; the upper chord of the suspension type end support is connected to a sand box top steel plate, the vertical web member of the suspension type end support is connected to a pier cap, and the Bailey beam is arranged in the frame structure.
Compared with the prior art, the technical scheme has the following characteristics and beneficial effects:
(1) the Bailey beam is suspended by the suspension type end bracket, so that the working procedures of excavation and treatment of a steel pipe supporting foundation, pre-embedding of steel pipe supporting legs, steel pipe hoisting and installation, I-shaped steel beam installation, bracket prepressing and the like are not needed, and the construction of a template and subsequent work can be carried out only by directly placing the Bailey beam on a pier cap.
(2) The Bailey beam suspension structure is quick in construction, wide in application range, and less affected by geological conditions such as paddy fields, ditches and the like, so that the construction cost is greatly reduced, and the construction progress is accelerated.
Drawings
Fig. 1 is a front overall schematic view of a bailey beam suspension structure according to an embodiment of the present invention.
Fig. 2 is a side view of the overall suspension structure of the beret beam according to the embodiment of the present invention.
Fig. 3 is a side schematic view of a suspension tip cradle according to an embodiment of the present invention.
Fig. 4 is a schematic front view of a suspension tip cradle according to an embodiment of the invention.
FIG. 5 is a detailed view of the flask support structure of an embodiment of the present invention.
Fig. 6 is a detailed configuration diagram of a beret beam suspension structure of an embodiment of the present invention.
Fig. 7 is a cross-sectional view of the beret beam suspension structure of fig. 6.
Wherein: 1-a groove body; 2-groove end ribs; 3-concrete support base stone; 4-pier cap; 5-pier stud; 6-Bailey beam; 7-a suspended end bracket; 8-a sand box; 9-hanging end bracket upper chord; 10-a suspension type end bracket diagonal web member; 11-suspension type end bracket vertical web member; 12-hanging end bracket lower chord; 13-a limiting fixed end of the Bailey beam; 14-dense concrete; 15-a piston; 16-sand grains; 17-sand box bottom steel plate; 18-a sand discharge port; 19-sand box top steel plate; 20-jack backing plate; 21-a jack; 22-an embedded part; 23-a steel cord; 24-a steel ring; 25-high strength bolts; 26-forming a built-in fitting; 27-a pull rod; 28-tie bar backing plate; 29-a beret beam upper chord; 30-bailey beam diagonal web member; 31-a vertical web member of a Bailey beam; 32-beret beam lower chord.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present invention.
It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for ease of description and simplicity of description, and do not indicate or imply that the referenced devices or components must be constructed and operated in a particular orientation and thus are not to be considered limiting.
It is understood that the terms "a" and "an" should be interpreted as meaning that a number of one element or element is one in one embodiment, while a number of other elements is one in another embodiment, and the terms "a" and "an" should not be interpreted as limiting the number.
The invention does not need to be repeated, and the structure implementation mode of the invention is mainly explained.
The scheme provides a Bailey beam suspension structure which is arranged on a pier cap 4 and used for suspending a Bailey beam 6 and comprises a sand box support structure and a suspension type end bracket 7, wherein the sand box support structure comprises a sand box bottom steel plate 17 arranged at the top of the pier cap 4, a sand box 8 and a jack 21 which are arranged on the sand box bottom steel plate 17 at intervals, and a sand box top steel plate 19 arranged at the tops of the sand box 8 and the jack 21; the suspension type end support 7 comprises a hollow frame structure which is surrounded by a suspension type end support upper chord 9, a suspension type end support vertical web member 11 and a suspension type end support lower chord member 12, wherein the suspension type end support upper chord 9 and the suspension type end support lower chord member 12 extend towards opposite directions relative to the frame structure; the upper chord 9 of the suspension type end support is connected to a sand box top steel plate 19, the vertical web member 11 of the suspension type end support is connected to the pier cap 4, and the Bailey beam 6 is arranged in the frame structure.
As shown in fig. 3-4, the schematic diagram of the suspension type end bracket is shown, the suspension type end bracket 7 is mainly composed of a suspension type end bracket upper chord 9, a suspension type end bracket diagonal web member 10, a suspension type end bracket vertical web member 11, a suspension type end bracket lower chord member 12, a beret beam limiting fixed end 13 and the like, and the suspension type end bracket upper chord 9 is doubly strengthened and tightly welded into a whole.
Two suspension type end supports erect web member 11 and connect perpendicularly on suspension type end support lower chord member 12, and suspension type end support upper chord member 9 is connected perpendicularly in the other end that suspension type end support erected web member 11, and suspension type end support upper chord member 9, suspension type end support erect web member 11 and suspension type end support lower chord member 12 surround and form a hollow frame structure, and suspension type end support diagonal web member 10 inclines to be arranged in frame structure.
The upper chord 9 of the suspension type end support, the oblique web member 10 of the suspension type end support, the vertical web member 11 of the suspension type end support and the lower chord 12 of the suspension type end support are all connected in a welding mode.
In the scheme, at least two suspension type end support diagonal web members 10 are connected and obliquely arranged in a frame structure, one end of one suspension type end support diagonal web member 10 is connected with the joint of a suspension type end support vertical web member 11 and a suspension type end support lower chord member 12, and the other end is connected with the suspension type end support vertical web member 11 on the other side; one end of the other suspension type end support diagonal web member 10 is connected with the joint of the suspension type end support vertical web member 11 and the suspension type end support upper chord member 9, and the other end of the other suspension type end support diagonal web member is intersected with the other suspension type end support diagonal web member 10.
As shown in fig. 4, the inner side wall of the frame structure corresponding to the upper chord 9 of the suspension type end bracket is provided with a bailey beam limiting fixed end 13 at intervals, and the inner side wall of the frame structure corresponding to the lower chord 12 of the suspension type end bracket is provided with the bailey beam limiting fixed end 13. The limiting fixed end 13 of the Bailey beam is a square steel block and is welded on the upper chord 9 of the suspension type end support and the lower chord 12 of the suspension type end support.
In some embodiments, the limited fixed ends 13 of the beret beams are symmetrically arranged, that is, the limited fixed ends 13 of the beret beams arranged on the upper chord 9 of the suspension type end bracket and the limited fixed ends 13 of the beret beams arranged on the lower chord 12 of the suspension type end bracket are symmetrically arranged, and a gap is left between the limited fixed ends 13 of the beret beams on both sides.
The upper chord 9 of the suspension type end support and the lower chord 12 of the suspension type end support both extend outwards relative to the frame structure, wherein the extending directions of the upper chord 9 of the suspension type end support and the lower chord 12 of the suspension type end support are opposite. In this scheme, suspension type end support upper chord 9 adopts two tight welding of poles as an organic whole to play the effect of double enhancement.
As shown in fig. 5 to 6, the detail structure of the flask supporting structure is shown, and comprises a pier cap 4, a flask 8, a dense flask bottom steel plate 17, a flask top steel plate 19, a jack backing plate 20, a jack 21, an embedded part 22, a steel cable 23, a steel ring 24 and the like, wherein the flask bottom steel plate 17 is placed on the top of the pier cap 4, the flask 8 and the jack 21 are placed on the flask bottom steel plate 17, the jack backing plate 20 is arranged on the lower part of the jack 21, wherein the flask 8 and the jack 21 are arranged at intervals along the length direction of the pier cap 4, the height of the flask 8 is consistent with the height control of the jack 21, and the flask top steel plate 19 is arranged on the tops of the flask 8 and the jack 21.
The embedded part 22 is pre-embedded in the pier cap 4 in advance and is arranged on the side of the sand box bottom steel plate 17, the steel rings 24 are respectively arranged on the upper part of the embedded part 22 and the lower part of the sand box top steel plate 19, the upper steel ring 24 and the lower steel ring 24 are oppositely pulled by the steel rope 23, the sand box top steel plate 19 is connected with the embedded part 22, and the sand box top steel plate 19 is prevented from sliding off.
As shown in fig. 5, a detailed view of the internal structure of the flask supporting structure is shown, which includes a flask 8, dense concrete 14, a piston 15, sand 16, a bottom steel plate 17 of the flask, a sand discharge port 18, a top steel plate 19 of the flask, a jack backing plate 20, a jack 21, and the like, wherein the flask 8 mainly includes the piston 15, a flask, the sand discharge port 18, and the like, the piston 15 is filled with the dense concrete 14 in advance, and the flask is filled with the sand 16 of the same size.
Specifically, the structure of the flask 8 is as follows: the sand box 8 comprises a sand cylinder arranged on a steel plate 17 at the bottom of the sand box and a piston 15 with one end arranged in the sand cylinder, wherein the sand cylinder is filled with sand 16, the piston 15 is filled with dense concrete 14, one end of the piston 15 is arranged above the sand 16 and supported by the sand 16, the upper surface of the piston 15 is a flat plate, and a steel top plate 19 of the sand box is arranged on the flat plate. Wherein the cross-sectional diameter of the sand cylinder is larger than the cross-sectional diameter of the piston 15.
The suspension type end support 7 is suspended on the sand box top steel plate 19, and the suspension type end support upper chord 9 and the sand box top steel plate 19 are in reinforced connection through a plurality of high-strength bolts 25. The regularization built-in fitting 26 is pre-buried in advance in the pier cap 4 pouring process, the pull rod backing plate 28 is welded with the vertical web member 11 of the suspension type end support, one end of the pull rod 27 is welded with the regularization built-in fitting 26, the other end of the pull rod 27 is provided with threads and penetrates through the pull rod backing plate 28, and the pull rod backing plate 28 is tightened or loosened through bolts. At this time, the suspended end bracket 7 is placed on the side of the sand box top steel plate 19. After the Bailey beam 6 is placed on the suspension type end bracket 7, the Bailey beam upper chord 29 and the Bailey beam lower chord 32 of the Bailey beam 6 are both limited and fixed through the Bailey beam limiting and fixing end 13.
The scheme also provides a construction method applying the Bailey beam suspension structure, which is characterized by comprising the following steps of:
(1) construction preparation: before construction, measurement and paying-off are carried out according to design requirements, specific positions and sizes of pier studs 5 and pier caps 4 are determined, the number and span of the Bailey beams 6 are designed according to the full load weight of the groove body 1 during construction, the size of the suspension type end bracket 7 and the number and size of sand boxes 8 are designed according to the number and size of the Bailey beams 6, and water supply, power supply, passage and other early-stage work is carried out.
(2) Pier stud and pier cap construction: according to position and size ligature pier stud 5 of design, the steel reinforcement cage of pier cap 4, at pier cap 4 reinforcement in-process, according to the position welding regularization built-in fitting 26 of design, and with one end threaded pull rod 27 with regularization built-in fitting 26 welding together, wherein regularization built-in fitting 26 is pre-buried in the side of pier cap 4, weld built-in fitting 22 on the steel reinforcement cage top layer reinforcing bar of pier cap 4 simultaneously, wherein the built-in fitting 22 is pre-buried in the top side of pier cap 4, formwork concreting, the one end of pull rod 27 threaded stretches out the pier cap 4 concrete outside, steel ring 24 on built-in fitting 22 upper portion is located pier cap 4 concrete top.
(3) Manufacturing a sand box and a suspension type end support: the sand boxes 8 are made of medium-fine sand, the sand should be made of medium-fine sand, particles with the size being more than 2mm are screened out, so that the sand can be smoothly discharged from the sand discharge port 18, the sand discharge port 18 is arranged on the side of the sand cylinder, the sand filling amount of each box is obtained through compaction tests and careful calculation, and the bottom of the bearing back beam is ensured to be on the same horizontal plane. The suspension type end support 7 is made of profile steel in a factory, the cantilever length of the upper chord 9 of the suspension type end support is 300mm, the upper chord 9 of the suspension type end support is doubly reinforced and tightly welded into a whole, and bending, shearing, damage and deformation are avoided when the suspension type end support is stressed.
(4) And (3) installing a sand box and a jack: after the concrete strength of the pier cap 4 meets the design requirement, after top sundries are cleaned, the positions of a sand box 8 and a jack 21 are marked by a red pen, a sand box bottom steel plate 17 is laid on the top of the pier cap 4, the sand box 8 is placed on the sand box bottom steel plate 17 according to the marked positions, the jacks 21 are installed, a sand box top steel plate 19 is placed on the tops of the sand box 8 and the jack 21, and a steel ring 24 on the lower portion of the sand box top steel plate 19 and a steel ring 24 on an embedded part 22 are tensioned through a steel rope 23.
(5) Hoisting a suspension type end support: the suspension type end support 7 is lifted by a tower crane and moved to the upper part of the sand box 8, the overhanging end of the upper chord 9 of the suspension type end support is hung on a steel plate 19 at the top of the sand box, the position of the overhanging end is preliminarily adjusted, and a pull rod base plate 28 with a bolt hole is welded on the vertical web member 11 of the suspension type end support.
(6) The suspension type end bracket is strengthened and connected: the position of the suspension type end support 7 is accurately adjusted manually by using tools such as a jack, a crowbar and the like, so that bolt holes of the upper chord 9 of the suspension type end support are aligned with bolt holes of the sand box top steel plate 19, the pull rod 27 penetrates through the bolt hole of the pull rod backing plate 28, the high-strength bolt 25 is inserted into the bolt hole of the upper chord 9 of the suspension type end support, the upper chord 9 of the suspension type end support is firmly connected with the sand box top steel plate 19, and the bolt is screwed on the end thread head of the pull rod 27, so that the vertical web member 11 of the suspension type end support is tightly attached to the side wall of the pier cap 4.
(7) Hoisting the Bailey beam: after the suspension type end support 7 is installed, the Bailey beam 6 is lifted by a large truck crane, two ends of the Bailey beam 6 are placed on the suspension type end support 7, the Bailey beam upper chord 29 and the Bailey beam lower chord 32 are fixed through the Bailey beam limiting fixed end 13, steel wires are bound between adjacent Bailey beams 6, and the integrity of the Bailey beam 6 is enhanced.
(8) Pouring aqueduct concrete: after the Bailey beam 6 is installed, an aqueduct formwork system is paved on the Bailey beam 6, a concrete support cushion stone 3 is arranged on the upper portion of the pier cap 4, concrete of an aqueduct body 1 is poured, and the aqueduct end rib 2 is supported on the concrete support cushion stone 3.
The structure of the bailey beam suspension structure involved in the construction method of the bailey beam suspension structure is as described above, and will not be described herein.
The present invention is not limited to the above-mentioned preferred embodiments, and any other products in various forms can be obtained by anyone in the light of the present invention, but any changes in the shape or structure thereof, which have the same or similar technical solutions as those of the present application, fall within the protection scope of the present invention.
Claims (10)
1. A construction method applying a Bailey beam suspension structure is characterized by comprising the following steps:
step 1: construction preparation: before construction, measurement and paying-off are carried out according to design requirements, the positions and the sizes of pier studs (5) and pier caps (4) are determined, the number and the span of the Bailey beams (6) are designed, the size of a suspension type end bracket (7) and the number and the size of sand boxes (8) are designed, and water supply, power supply and access preliminary work are carried out;
step 2: pier stud and pier cap construction: binding reinforcement cages of a pier column (5) and a pier cap (4) according to designed positions and sizes, welding a shaped embedded part (26) according to the designed positions in the reinforcement binding process of the pier cap (4), and welding a pull rod (27) with threads at one end with the shaped embedded part (26), wherein the shaped embedded part (26) is embedded in the side edge of the pier cap (4), meanwhile, welding an embedded part (22) on the reinforcement cage top layer reinforcement of the pier cap (4), wherein the embedded part (22) is embedded in the top side of the pier cap (4), erecting a mold to pour concrete, one end with threads of the pull rod (27) extends out of the concrete outside of the pier cap (4), and a steel ring (24) at the upper part of the embedded part (22) is positioned at the concrete top of the pier cap (4);
and step 3: manufacturing a sand box and a suspension type end bracket;
and 4, step 4: and (3) installing a sand box and a jack: after the concrete strength of the pier cap (4) meets the design requirement, after top sundries are cleaned, marking the positions of a sand box (8) and a jack (21), paving a sand box bottom steel plate (17) on the top of the pier cap (4), placing the sand box (8) on the sand box bottom steel plate (17) according to the marked positions, installing a plurality of jacks (21), placing a sand box top steel plate (19) on the tops of the sand box (8) and the jack (21), and tensioning a steel ring (24) at the lower part of the sand box top steel plate (19) and a steel ring (24) on an embedded part (22) through a steel rope (23);
and 5: hoisting a suspension type end support: lifting the suspension type end support (7) to move to the upper part of the sand box (8), hanging the cantilever end of the upper chord (9) of the suspension type end support on a sand box top steel plate (19), and welding a pull rod base plate (28) with a bolt hole on a vertical web member (11) of the suspension type end support;
step 6: the suspension type end bracket is strengthened and connected: aligning a bolt hole of an upper chord (9) of the suspension type end bracket with a bolt hole of a sand box top steel plate (19), penetrating a pull rod (27) through a bolt hole of a pull rod backing plate (28), inserting a high-strength bolt (25) into the bolt hole of the upper chord (9) of the suspension type end bracket, and screwing a bolt on a threaded head at the end part of the pull rod (27);
and 7: hoisting the Bailey beam: after the suspension type end bracket (7) is installed, the Bailey beam (6) is lifted, two ends of the Bailey beam (6) are placed on the suspension type end bracket (7), and an upper chord (29) and a lower chord (32) of the Bailey beam are fixed through a limiting fixed end (13) of the Bailey beam;
and 8: pouring aqueduct concrete: after the Bailey beam (6) is installed, an aqueduct formwork system is laid on the Bailey beam (6).
2. The construction method of the Bailey beam suspension structure according to claim 1, wherein the suspension end bracket (7) comprises a suspension end bracket upper chord (9), a suspension end bracket diagonal web member (10), a suspension end bracket vertical web member (11), a suspension end bracket lower chord (12) and a Bailey beam limiting fixed end (13), wherein the suspension end bracket upper chord (9), the suspension end bracket vertical web member (11) and the suspension end bracket lower chord (12) surround to form a hollow frame structure, and the suspension end bracket upper chord (9) and the suspension end bracket lower chord (12) extend outwards in opposite directions relative to the frame structure.
3. The construction method using the Bailey beam suspension structure, according to claim 2, wherein the suspension type end bracket diagonal web member (10) is obliquely arranged in the frame structure.
4. The construction method of the Bailey beam suspension structure according to claim 3, wherein at least two suspension end support diagonal web members (10) are connected and obliquely arranged in the frame structure, one end of one suspension end support diagonal web member (10) is connected with the joint of the suspension end support vertical web member (11) and the suspension end support lower chord member (12), and the other end is connected with the suspension end support vertical web member (11) on the other side; one end of the other oblique web member (10) of the suspension type end support is connected with the joint of the vertical web member (11) of the suspension type end support and the upper chord member (9) of the suspension type end support, and the other end of the oblique web member (10) of the other suspension type end support is intersected.
5. The construction method of the application of the Bailey beam suspension structure as claimed in claim 2, wherein the frame structure is provided with Bailey beam limiting fixing ends (13) corresponding to the inner side wall of the upper chord (9) of the suspension type end bracket at intervals, and the frame structure is provided with Bailey beam limiting fixing ends (13) corresponding to the inner side wall of the lower chord (12) of the suspension type end bracket.
6. The construction method of the Bailey beam suspension structure applied to the claim 5 is characterized in that the Bailey beam limiting fixed end (13) arranged on the upper chord (9) of the suspension type end bracket and the Bailey beam limiting fixed end (13) arranged on the lower chord (12) of the suspension type end bracket are symmetrically arranged.
7. The construction method using the Bailey beam suspension structure according to claim 1, wherein the sand box (8) comprises a sand cylinder disposed on a steel plate (17) at the bottom of the sand box and a piston (15) disposed in the sand cylinder at one end, wherein the sand cylinder is filled with sand (16), the piston (15) is filled with dense concrete (14), one end of the piston (15) is disposed above the sand (16) and supported by the sand (16), and the upper surface of the piston (15) is a flat plate.
8. The construction method using the Bailey beam suspension structure, according to claim 1, wherein a jack backing plate (20) is provided under the jack (21), and the sand box (8) and the jack (21) are provided at intervals along the length direction of the coping (4).
9. The method for constructing a suspended structure using Bailey beams as claimed in claim 1, wherein in step 3, the sand loading of each box of the sand box (8) is determined by compaction test and careful calculation to ensure that the bottom of the load-bearing back beam is on the same horizontal plane, the suspended end brackets (7) are made of section steel in factory, and the upper chords (9) of the suspended end brackets are doubly reinforced and welded into a whole.
10. A Bailey beam suspension structure placed on a coping (4) for suspending a Bailey beam (6), comprising:
a sand box supporting structure and a suspension type end bracket (7),
the sand box supporting structure comprises a sand box bottom steel plate (17) arranged at the top of the pier cap (4), sand boxes (8) and jacks (21) which are arranged on the sand box bottom steel plate (17) at intervals, and sand box top steel plates (19) arranged at the tops of the sand boxes (8) and the jacks (21);
the suspension type end support (7) comprises a hollow frame structure which is formed by surrounding a suspension type end support upper chord (9), a suspension type end support vertical web member (11) and a suspension type end support lower chord (12), wherein the suspension type end support upper chord (9) and the suspension type end support lower chord (12) extend towards opposite directions relative to the frame structure; suspension type end support upper chord member (9) are connected in sand box top steel sheet (19), and suspension type end support erects web member (11) and connects in pier cap (4), and beiLei roof beam (6) are arranged in the frame structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010935060.8A CN112030768A (en) | 2020-09-08 | 2020-09-08 | Bailey beam suspension structure and construction method applying same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010935060.8A CN112030768A (en) | 2020-09-08 | 2020-09-08 | Bailey beam suspension structure and construction method applying same |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN120006969A (en) * | 2025-03-13 | 2025-05-16 | 中国建筑第四工程局有限公司 | A multi-point dynamic dual-control combined device for deformation of large-scale hollow truss structures |
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| WO2014193020A1 (en) * | 2013-05-30 | 2014-12-04 | Kim Tae Hee | Incremental launching method for concrete bridge using transport carts and winch |
| CN105714683A (en) * | 2016-02-23 | 2016-06-29 | 中国水利水电第十一工程局有限公司 | Installation and dismantling method of high bent cast-in-situ aqueduct suspension type bailey frames |
| CN206941409U (en) * | 2017-06-09 | 2018-01-30 | 中铁八局集团昆明铁路建设有限公司 | A kind of sandbox falls rack device |
| CN208219415U (en) * | 2018-03-16 | 2018-12-11 | 广州市市政工程设计研究总院 | A kind of mixed composite beam bridge pre-bending structure of the steel-using preflex beam |
| CN208734119U (en) * | 2018-08-03 | 2019-04-12 | 中水电第十一工程局（郑州）有限公司 | A combined load-bearing structure of steel pipe column and Bailey beam |
| CN213804905U (en) * | 2020-09-08 | 2021-07-27 | 浙江世润建创科技发展有限公司 | Bailey beam suspension structure |
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| WO2014193020A1 (en) * | 2013-05-30 | 2014-12-04 | Kim Tae Hee | Incremental launching method for concrete bridge using transport carts and winch |
| CN105714683A (en) * | 2016-02-23 | 2016-06-29 | 中国水利水电第十一工程局有限公司 | Installation and dismantling method of high bent cast-in-situ aqueduct suspension type bailey frames |
| CN206941409U (en) * | 2017-06-09 | 2018-01-30 | 中铁八局集团昆明铁路建设有限公司 | A kind of sandbox falls rack device |
| CN208219415U (en) * | 2018-03-16 | 2018-12-11 | 广州市市政工程设计研究总院 | A kind of mixed composite beam bridge pre-bending structure of the steel-using preflex beam |
| CN208734119U (en) * | 2018-08-03 | 2019-04-12 | 中水电第十一工程局（郑州）有限公司 | A combined load-bearing structure of steel pipe column and Bailey beam |
| CN213804905U (en) * | 2020-09-08 | 2021-07-27 | 浙江世润建创科技发展有限公司 | Bailey beam suspension structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN120006969A (en) * | 2025-03-13 | 2025-05-16 | 中国建筑第四工程局有限公司 | A multi-point dynamic dual-control combined device for deformation of large-scale hollow truss structures |
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Application publication date: 20201204 |