CN114808707A - A do not fall to ground circulation removal steel platform for bridge construction - Google Patents

A do not fall to ground circulation removal steel platform for bridge construction Download PDF

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Publication number
CN114808707A
CN114808707A CN202210302184.1A CN202210302184A CN114808707A CN 114808707 A CN114808707 A CN 114808707A CN 202210302184 A CN202210302184 A CN 202210302184A CN 114808707 A CN114808707 A CN 114808707A
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CN
China
Prior art keywords
pile
plate
landing
caps
pile caps
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Pending
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CN202210302184.1A
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Chinese (zh)
Inventor
高璞
韩振勇
周俊龙
李飞
谢朋林
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Cscec International Construction Co ltd
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Cscec International Construction Co ltd
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Priority to CN202210302184.1A priority Critical patent/CN114808707A/en
Publication of CN114808707A publication Critical patent/CN114808707A/en
Pending legal-status Critical Current

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    • 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
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/22Piles
    • E02D5/223Details of top sections of foundation piles

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • General Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Bridges Or Land Bridges (AREA)

Abstract

The invention discloses a non-landing circulating mobile steel platform for bridge construction, which comprises pile caps, transverse distribution beams, a main truss and a panel, wherein the pile caps are arranged on the pile caps; the pile caps are distributed in an array mode and comprise at least two rows of pile caps arranged along the transverse direction and at least two columns of pile caps arranged along the longitudinal direction; the pile cap is used for being sleeved at the top of the pile; the top of each row of pile caps is fixedly provided with a transverse distribution beam; the main truss extends along the longitudinal direction and is supported between two adjacent transverse distribution beams; the panel is supported on the top of the main truss and used for forming a construction platform. The main truss is arranged at the top of the pile cap by the aid of the non-landing circular moving steel platform, so that the pile is prevented from bearing lateral bending moment, and structural safety and reliability are improved.

Description

A do not fall to ground circulating mobile steel platform for bridge construction
Technical Field
The invention relates to the technical field of building construction, in particular to a non-landing circulating mobile steel platform for bridge construction.
Background
When constructing bridges and roads for construction, the construction environment is often river, beach and marshland according to the difference of geographical positions. Particularly, when the construction is carried out in a marshland area, all construction machines cannot directly operate on the ground due to the limitation of geological conditions of the marshland area, and when the construction environment is faced, a construction platform needs to be set up for the construction machines.
The prior art discloses a construction steel platform that does not fall to ground, and this steel platform's concrete structure is: the pile cap structure comprises two half pile cap structures which can be installed in a butt joint mode, each half pile cap structure comprises a half tubular pile cap body, top plates arranged along the horizontal direction are welded to the tops of the two pile cap bodies respectively, the two top plates on the two pile cap bodies installed in the butt joint mode can be installed together in a butt joint mode, a plurality of vibration damping rubber strips are attached to the inner wall of each pile cap body, at least two fastening lug plates are welded to the butt joint installation positions of the two half pile cap structures installed in the butt joint mode respectively, the two half pile cap structures installed in the butt joint mode are fixedly connected through fasteners penetrating through connecting holes in the fastening lug plates so that the two half pile cap structures are closely attached to the end of the pile structure through extrusion of the vibration damping rubber strips, and vibration damping rubber sheets are placed between the tops of the pile structures and the top plates of the two half pile cap structures in a padding mode, the steel platform comprises a plurality of semi-pile cap structures, wherein an upper installation lug plate and a lower installation lug plate are arranged in the middle of the outer wall of each semi-pile cap structure at intervals from top to bottom, a steel platform main truss is connected between the two rows of adjacent semi-pile cap structures along the longitudinal direction of the bridge, two ends of the steel platform main truss are connected with the upper installation lug plates and the lower installation lug plates on the semi-pile cap structures on the corresponding sides in a pin joint mode respectively, a plurality of transverse distribution beams in the transverse direction of the bridge are erected on each steel platform main truss along the transverse direction of the bridge, double-spliced I-shaped steel is adopted as the transverse distribution beams in the transverse direction of the bridge, a plurality of distribution beams in the longitudinal direction of the bridge are arranged on the plurality of distribution beams in the transverse direction of the bridge along the longitudinal direction of the bridge, I-shaped steel is adopted as the distribution beams in the longitudinal direction of the bridge, and a plurality of bridge distribution beams in the longitudinal direction of the bridge are fully paved on the plurality of distribution beams in the longitudinal direction of the bridge.
However, the main truss of the existing steel platform is connected between pile caps, and exerts transverse tension on the tops of the piles, so that the piles need to bear bending moment, and the steel platform has the problem of poor structural safety and reliability.
Disclosure of Invention
In view of the above, the invention provides a non-landing circulating mobile steel platform for bridge construction, which mounts a main truss on the top of a pile cap, so that a pile is prevented from bearing a lateral bending moment, and the structural safety and reliability are improved.
The invention adopts the following specific technical scheme:
a landing-free circulating mobile steel platform for bridge construction comprises pile caps, transverse distribution beams, a main truss and a panel;
the pile caps are distributed in an array mode and comprise at least two rows of pile caps arranged along the transverse direction and at least two columns of pile caps arranged along the longitudinal direction; the pile cap is used for being sleeved at the top of the pile;
the top of each row of pile caps is fixedly provided with one transverse distribution beam;
the main truss extends along the longitudinal direction and is supported between two adjacent transverse distribution beams in a sliding mode;
the panel is supported on the top of the main truss and used for forming a construction platform.
Further, the pile cap comprises two half pile caps which are oppositely arranged;
the half pile cap comprises a semicircular top plate and a semicircular side plate which are coaxially arranged; one end of the semi-annular side plate is welded and connected with the semi-circular top plate;
a pressing plate for crimping the transverse distribution beam is fixedly arranged on the top surface of the semicircular top plate;
fastening lug plates are arranged on two side edges of the semi-annular side plate, and through holes penetrating through the thickness of the fastening lug plates are formed in the fastening lug plates; a connecting lug plate is welded on the outer side surface of the semi-annular side plate between the two fastening lug plates;
two half pile caps are fixedly connected together through a fastener penetrating through the through holes of the fastening lug plates, two semicircular top plates are spliced to form a circular top plate, and two semicircular side plates are spliced to form a circular cylinder.
Furthermore, in each row of pile caps, an adjustable pull rod is fixedly connected between every two adjacent pile caps; the end part of the adjustable pull rod is hinged with the connecting lug plate and is used for adjusting the transverse distance and the transverse inclination angle of the pile cap.
Furthermore, three adjustable pull rods are fixedly connected between two adjacent pile caps, and the three adjustable pull rods are distributed in a Z shape.
Furthermore, a plurality of limiting grooves distributed along the length direction of the transverse distribution beam are formed in the top surface of the transverse distribution beam;
the end part of the main truss is accommodated in the limiting groove;
the limiting grooves limit two sides of the main truss and are used for preventing the main truss from moving along the transverse direction.
Furthermore, the limiting groove is formed by a U-shaped steel plate;
a polytetrafluoroethylene plate is laid in each limiting groove;
the ends of the primary truss are supported on the top surface of the teflon plate.
Further, the main truss is a Bailey truss.
Furthermore, the main truss comprises two variable cross-section Bailey truss beams and a standard Bailey truss beam fixedly connected between the two variable cross-section Bailey truss beams;
the variable cross-section Bailey truss is supported on the top of the transverse distribution beam. Furthermore, the transverse distribution beam is formed by three split I-shaped steel arranged side by side.
Further, a guard rail is provided at one side of the panel.
Has the advantages that:
1. the landing-free circulating mobile steel platform is sleeved at the top ends of the piles through the pile caps distributed in an array mode, the top of each row of pile caps is fixedly provided with one transverse distribution beam, the main truss is arranged at the top of the transverse distribution beam, the adjacent transverse distribution beams support the main truss and the panel, and therefore the construction platform is formed.
2. The top surface of the transverse distribution beam is provided with a plurality of limiting grooves, the end part of the main truss can be transversely limited through the limiting grooves, the main truss is prevented from transversely moving under the action of external force, and the stability and the safety of the construction platform are further improved; meanwhile, the polytetrafluoroethylene plate is arranged in the limiting groove, and the sliding support is formed by the limiting groove and the polytetrafluoroethylene plate, so that the main truss is supported on the sliding support, the horizontal force generated by construction load can be effectively eliminated, and pile breakage caused by overlarge horizontal force is avoided.
3. Because three adjustable pull rods are fixedly connected between two adjacent pile caps in each row of pile caps and distributed in a Z shape, transverse pulling force and oblique pulling force can be applied to the two adjacent pile caps through the three adjustable pull rods, the transverse distance and the transverse inclination angle between the pile caps can be adjusted through the three adjustable pull rods distributed in the Z shape, meanwhile, the problem of difficulty in installation caused by pile construction deviation can be effectively solved through the adjustable pull rods, the requirement on pile driving precision can be lowered, and the pile driving efficiency is improved.
Drawings
FIG. 1 is a front view of a non-landing steel circulating mobile platform of the present invention;
FIG. 2 is a side view of the non-landing steel circulation platform of FIG. 1;
FIG. 3 is another side view of the non-landing steel circulation platform of FIG. 1;
fig. 4 is a schematic view of the connection structure of the pile cap and the transverse distribution beam in fig. 1;
FIG. 5 is a schematic view of an assembly structure of the limiting groove and the PTFE plate in FIG. 3;
wherein, 1-pile cap, 2-transverse distribution beam, 3-main truss, 4-panel, 5-pile, 6-guardrail, 7-adjustable pull rod, 8-limit groove, 9-polytetrafluoroethylene plate, 10-top plate, 11-side plate, 12-pressing plate
Detailed Description
The invention is described in detail below by way of example with reference to the accompanying drawings.
The embodiment of the invention provides a non-landing circulating mobile steel platform for bridge construction, which comprises pile caps 1, transverse distribution beams 2, a main truss 3 and panels 4, wherein the structures of the non-landing circulating mobile steel platform are shown in fig. 1, 2 and 3; in fig. 1, only a part of the non-landing circulating mobile steel platform is illustrated, and in the actual construction process, the length of the non-landing circulating mobile steel platform can be further extended according to the structure in fig. 1;
the pile caps 1 are distributed in an array mode and comprise at least two rows of pile caps 1 arranged along the transverse direction and at least two columns of pile caps 1 arranged along the longitudinal direction; the pile cap 1 is used for being sleeved on the top of the pile 5; the number of the pile caps 1, and the distance between the pile caps 1 along the transverse direction and the distance between the pile caps 1 along the longitudinal direction correspond to the preset pile 5; in the present embodiment, only two rows and four columns are taken as an example for explanation, that is, each row is provided with four pile caps 1, and each column is provided with two pile caps 1; the transverse direction is the width direction of the bridge, and the longitudinal direction is the length direction of the bridge;
as shown in the structure of fig. 2 and 3, a transverse distribution beam 2 is fixedly mounted on the top of each row of pile caps 1, i.e. one transverse distribution beam 2 is supported by 4 pile caps 1 of each row; the transverse distribution beam 2 can be formed by three spliced I-shaped steel arranged side by side;
as shown in the structure of fig. 1, the main girder 3 extends in the longitudinal direction and is slidably supported between two adjacent transverse distribution beams 2; the main truss 3 is a Bailey beam truss, and two variable cross-section Bailey beam trusses at the end part and a standard Bailey beam truss at the middle part are fixedly connected to form the main truss, such as: bolt and nut, riveting and welding connection; the variable cross-section Bailey beam truss is supported at the top of the transverse distribution beam 2; the main trusses 3 may be continuously arranged on the top of the transverse distribution beam 2 as shown in the structure of fig. 2, or the main trusses 3 may be arranged at intervals on the top of the transverse distribution beam 2 as shown in the structure of fig. 3;
as shown in the structure of fig. 1, 2 and 3, a deck 4 is supported on the top of the main girder 3 for forming a construction platform. The top of the main truss 3 and the panel 4 can be assembled through a limiting structure, and the panel 4 is stably installed on the top of the main truss 3; the panel 4 may be formed by splicing standard panel modules which may be welded from I20A I-beams spaced 300mm apart and a patterned steel plate 8mm thick. As shown in the structure of fig. 2, when the main girders 3 are continuously provided on the top of the transverse distribution girder 2, a continuous deck 4 may be laid on the top of the continuously provided main girders 3; alternatively, as shown in the structure of fig. 3, when the main girders 3 are spaced apart from each other on the top of the transverse distribution girder 2, spaced-apart panels 4 may be laid on the tops of the spaced-apart main girders 3.
The above-mentioned circular mobile steel platform that does not fall to ground can build the circular mobile steel platform that does not fall to ground of not unidimensional through the ratio to pile cap 1, horizontal distribution beam 2, main truss 3 and panel 4, if: pile caps in two rows and four columns can be configured, pile caps in four rows and four columns can be configured, pile caps in eight rows and three columns can be configured, and meanwhile, the transverse distribution beam 2, the main truss 3 and the panels 4 matched with the pile caps are configured; in the specific construction process, the whole non-landing circulating mobile steel platform can be replaced at the top of the pile 5 through the operation of circularly disassembling and carrying part of the pile caps 1, the transverse distribution beam 2, the main truss 3 and the panel 4, so that the circulating use at different stations is completed, and the non-landing construction is really realized;
the top of pile 5 is located to the above-mentioned circulation removal steel platform that does not fall to the ground through pile cap 1 cover that the array distributes, top fixed mounting has a horizontal distribution roof beam 2 at every row of pile cap 1, and install main truss 3 in the top of horizontal distribution roof beam 2, adjacent horizontal distribution roof beam 2 supports main truss 3 and panel 4, thereby form the construction platform, adopt above-mentioned connection structure, the effort of construction platform passes through main truss 3 and the top of horizontal distribution roof beam 2 direct action pile cap 1 during the construction, transmit the effort for pile 5 along vertical direction again through pile cap 1, make pile 5 bear the effort that comes from vertical direction all the time, avoided pile 5 to bear the side direction moment of flexure, thereby construction platform's structural safety and reliability have been guaranteed.
In a specific embodiment, as shown in the structure of fig. 1, the pile cap 1 is a split structure, and includes two half pile caps arranged oppositely; the two half pile caps are butted together through a fastener; the fastener can be a bolt and a nut which are matched with each other through threads, and can also be any part with a connecting function, such as a rivet and the like; in the present embodiment, the fastener is described by taking a bolt and a nut as an example;
the half pile cap comprises a semicircular top plate and a semicircular side plate which are coaxially arranged; one end of the semi-annular side plate is welded and connected with the bottom surface of the semi-circular top plate; the semicircular top plate and the semicircular side plate can be steel plates; the half pile cap can also comprise a plurality of stiffening plates distributed along the circumferential direction of the half ring-shaped side plate, and the stiffening plates can be uniformly distributed along the circumferential direction of the half ring-shaped side plate; the top surface of the stiffening plate is fixedly connected with the semicircular top plate, and the side surface of the stiffening plate is fixedly connected with the outer peripheral surface of the semicircular side plate; the stiffening plate can be a triangular steel plate, a trapezoidal steel plate and the like and is connected with the semicircular top plate and the semicircular side plate through welding; the connection strength between the semicircular top plate and the semicircular side plate is improved through the stiffening plate, and the supporting strength of the semicircular side plate to the semicircular top plate can be improved;
a pressing plate for crimping the transverse distribution beam 2 is fixedly arranged on the top surface of the semicircular top plate; the transverse distribution beam 2 can be fixed through the pressing plate 12, so that the construction of a construction platform is realized; the top surface of the semicircular top plate is fixedly connected with a screw rod extending along the axial direction of the semicircular top plate, the screw rod penetrates through the pressing plate, and the pressing plate 12 is pressed tightly through a nut in threaded fit with the screw rod; the inner bottom surface of the pressing plate 12 is provided with a trapezoidal groove matched with the flange shape of the I-beam forming the transverse distribution beam 2, so that the transverse distribution beam 2 can be stably and fixedly arranged at the top of the pile cap through the pressing plate 12;
fastening lug plates are arranged on two side edges of the semi-annular side plate in corresponding positions, and through holes penetrating through the thickness of the fastening lug plates are formed in the fastening lug plates; two fastening lug plates are arranged at intervals along the axial direction of the semi-annular side plate, and each fastening lug plate is provided with three through holes along the axial direction of the semi-annular side plate; when the two half pile caps are butted, the fastening lug plates of the two half pile caps correspond to the through holes on the fastening lug plates one by one, fasteners such as bolts penetrate through the through holes, and the two half pile caps are fixedly connected into a whole, so that the positioning and installation of the pile caps on the pile tops are realized;
the outer side surface of the semi-annular side plate between the two fastening lug plates is welded with a connecting lug plate, and the middle part of the outer side of the other semi-annular side plate is provided with a connecting lug plate or a steel bracket; the connecting lug plate is provided with a connecting hole for penetrating fasteners such as pins, bolts and the like, and the connecting lug plate can be used for realizing the connection between adjacent pile caps so as to adjust the transverse distance and the transverse inclination angle between the adjacent combined pile caps; as shown in the structures of fig. 2 and 3, two connecting ear plates are arranged on the outer side of the semi-annular side plate of one of the two semi-pile caps, a steel bracket is arranged on the outer side of the semi-annular side plate of the other semi-pile cap, the steel bracket and the semi-annular side plate can be connected in a welding manner, and the steel bracket is arranged on the outer side and is used for increasing the width of a construction platform so as to ensure a sufficient working space;
in the actual construction process, three connecting lug plates can be arranged at intervals along the axial direction of the semi-annular side plate; the connecting lug plates and the fastening lug plates are distributed at intervals of 90 degrees along the circumferential direction of the semi-annular side plate, namely, the connecting lug plates and the fastening lug plates which are alternately arranged divide the circumference of the pile cap into four equal parts, the interval angle of the connecting lug plates along the circumferential direction is 180 degrees, and the interval angle of the fastening lug plates along the circumferential direction is 180 degrees; the two half pile caps are butted together through a fastener penetrating through the through holes of the fastening lug plates, the two semicircular top plates are spliced to form a circular top plate 10, the two semicircular side plates are spliced to form a side plate 11, the side plate 11 and the top plate 10 enclose a circular cylinder, and the top of the pile column 5 is inserted into the circular cylinder.
With the pile cap 1 having the above-described structure, the i-beams constituting the transverse distribution beam 2 can be stably and reliably fixed and crimped to the top of the pile cap 1 by the pressing plate 12.
Meanwhile, as shown in the structures of fig. 2 and 3, in each row of pile caps 1, an adjustable pull rod 7 is fixedly connected between two adjacent pile caps 1, and the end part of the adjustable pull rod 7 is hinged with a connecting lug plate and used for adjusting the transverse distance and the transverse inclination angle of the pile caps 1; three adjustable pull rods 7 are fixedly connected between two adjacent pile caps 1, and the three adjustable pull rods 7 are distributed in a Z shape.
Because three adjustable pull rods 7 are fixedly connected between two adjacent pile caps 1 in each row of pile caps 1, and the three adjustable pull rods 7 are distributed in a Z shape, so that transverse pulling force and oblique pulling force can be applied to the two adjacent pile caps 1 through the three adjustable pull rods 7, therefore, the transverse distance and the transverse inclination angle between the pile caps 1 can be adjusted through the three adjustable pull rods 7 distributed in the Z shape, and meanwhile, the problem of difficult installation caused by construction deviation of the pile 5 can be effectively solved through the adjustable pull rods 7, so that the requirement on pile driving precision can be reduced, and the pile driving efficiency is improved.
Further, as shown in the structure of fig. 2, 3 and 5, a plurality of limiting grooves 8 are formed on the top surface of the transverse distribution beam 2 and distributed along the length direction thereof, the ends of the main girder 3 are received in the limiting grooves 8 of the transverse distribution beam 2, and the limiting grooves 8 limit the sides of the main girder 3 to prevent the main girder 3 from moving in the transverse direction.
As shown in the structure of fig. 5, the limiting grooves 8 may be formed of U-shaped steel plates welded to the top surfaces of the transverse distribution beams 2, a teflon plate 9 is laid in each limiting groove 8, and the ends of the main girders 3 are supported on the top surfaces of the teflon plate 9.
Because the plurality of limiting grooves 8 are formed in the top surface of the transverse distribution beam 2, the main truss 3 can be transversely limited through the limiting grooves 8, the main truss 3 is prevented from transversely moving under the action of external force, and the stability and the safety of the construction platform are further improved; meanwhile, the polytetrafluoroethylene plate 9 is arranged in the limiting groove 8, and the sliding support is formed by the polytetrafluoroethylene plate 9, so that the main truss 3 can be longitudinally and slidably supported on the sliding support, the horizontal force generated by construction load can be effectively eliminated, and the horizontal shearing force and the lateral bending moment born by the pile 5 are reduced.
On the basis of the various embodiments, the guardrails 6 are arranged on one side of the panel 4 and around the guide frame 11, and workers or articles can be prevented from falling off through the guardrails 6, so that the safety of bridge construction can be further improved.
In summary, the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A landing-free circulating mobile steel platform for bridge construction is characterized by comprising pile caps, transverse distribution beams, a main truss and panels;
the pile caps are distributed in an array mode and comprise at least two rows of pile caps arranged along the transverse direction and at least two columns of pile caps arranged along the longitudinal direction; the pile cap is used for being sleeved at the top of the pile;
the top of each row of pile caps is fixedly provided with one transverse distribution beam;
the main truss extends along the longitudinal direction and is supported between two adjacent transverse distribution beams in a sliding mode;
the panel is supported on the top of the main truss and used for forming a construction platform.
2. The non-landing circulating mobile steel platform of claim 1, wherein the pile caps comprise two half-pile caps disposed opposite each other;
the half pile cap comprises a semicircular top plate and a semicircular side plate which are coaxially arranged; one end of the semi-annular side plate is welded and connected with the semi-circular top plate;
a pressing plate for crimping the transverse distribution beam is fixedly arranged on the top surface of the semicircular top plate;
fastening lug plates are arranged on two side edges of the semi-annular side plate, and through holes penetrating through the thickness of the fastening lug plates are formed in the fastening lug plates; a connecting lug plate is welded on the outer side surface of the semi-annular side plate between the two fastening lug plates;
the two half pile caps are fixedly connected together through fasteners penetrating through the through holes of the fastening lug plates, the two semicircular top plates are spliced to form a circular top plate, and the two semicircular side plates are spliced to form a circular cylinder.
3. The non-landing circulating mobile steel platform of claim 2, wherein in each row of pile caps, an adjustable pull rod is fixedly connected between two adjacent pile caps;
the end part of the adjustable pull rod is hinged with the connecting lug plate and is used for adjusting the transverse distance and the transverse inclination angle of the pile cap.
4. The non-landing circulating mobile steel platform of claim 3, wherein three adjustable pull rods are fixedly connected between two adjacent pile caps, and are distributed in a Z shape.
5. The landing-free circulating mobile steel platform of any one of claims 1 to 4, wherein a plurality of limiting grooves distributed along the length direction of the transverse distribution beam are formed in the top surface of the transverse distribution beam;
the end part of the main truss is accommodated in the limiting groove;
the limiting grooves limit two sides of the main truss and are used for preventing the main truss from moving along the transverse direction.
6. The non-landing circulating mobile steel platform of claim 3, wherein the limiting groove is formed by a U-shaped steel plate;
a polytetrafluoroethylene plate is laid in each limiting groove;
the ends of the primary truss are supported on the top surface of the teflon plate.
7. The non-landing circulating mobile steel platform of claim 1, wherein the main truss is a beret truss.
8. The non-landing circulating mobile steel platform of claim 7, wherein the main truss comprises two variable cross-section Bailey truss beams and a standard Bailey truss beam fixedly connected between the two variable cross-section Bailey truss beams;
the variable cross-section Bailey truss is supported on the top of the transverse distribution beam.
9. The non-landing circulating mobile steel platform of claim 1, wherein the transverse distribution beams are formed from side-by-side triple-spliced i-beams.
10. The landing-free steel circulation platform of claim 1, wherein a guardrail is provided on one side of the panel.
CN202210302184.1A 2022-03-24 2022-03-24 A do not fall to ground circulation removal steel platform for bridge construction Pending CN114808707A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210302184.1A CN114808707A (en) 2022-03-24 2022-03-24 A do not fall to ground circulation removal steel platform for bridge construction

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210302184.1A CN114808707A (en) 2022-03-24 2022-03-24 A do not fall to ground circulation removal steel platform for bridge construction

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Publication Number Publication Date
CN114808707A true CN114808707A (en) 2022-07-29

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CN202210302184.1A Pending CN114808707A (en) 2022-03-24 2022-03-24 A do not fall to ground circulation removal steel platform for bridge construction

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103410084A (en) * 2013-08-15 2013-11-27 中交二航局第三工程有限公司 Assembly-type steel trestle
CN106087750A (en) * 2016-06-21 2016-11-09 中国建筑第六工程局有限公司 Pile integrative-structure does not land the construction method of construction steel platform across stake formula
CN110670488A (en) * 2019-10-15 2020-01-10 中铁二十四局集团安徽工程有限公司 Full-prefabricated assembled bridge construction platform and construction method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103410084A (en) * 2013-08-15 2013-11-27 中交二航局第三工程有限公司 Assembly-type steel trestle
CN106087750A (en) * 2016-06-21 2016-11-09 中国建筑第六工程局有限公司 Pile integrative-structure does not land the construction method of construction steel platform across stake formula
CN110670488A (en) * 2019-10-15 2020-01-10 中铁二十四局集团安徽工程有限公司 Full-prefabricated assembled bridge construction platform and construction method

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