CN112030759A - Bridge U-shaped rib assembling device and construction method thereof - Google Patents

Abstract

The invention provides a bridge U-shaped rib assembling device and a construction method thereof, wherein the bridge U-shaped rib assembling device comprises the following steps: the U-shaped ribs are arranged on the inner side of the vertical frames and vertically arranged on the base surface between the vertical frames, and the heights and the slopes of the U-shaped ribs are different from each other; the fixing part is used for fixing the U-shaped rib and at least comprises a baffle plate component with a trapezoidal structure, and the included angle of a bus of the baffle plate component is adjustable and is the same as the inclination of the U-shaped rib; the cross beam is positioned between the vertical frames on the two sides; and a control part for controlling the positions of the beam and the fixing part; the control part controls the fixing part to move horizontally or vertically along the length direction of the cross beam or the height direction of the vertical frame; when the assembly, the matching relation between the baffle component and the U-shaped rib is as follows: (L1-L3): (L1-L2) ═ H2: H1. The invention can assemble and fix the U-shaped ribs with different heights and inclinations at one time, and has good consistency and high precision; meanwhile, the welding device can also be applied to structures such as small H-shaped steel assembly welding, T-shaped steel assembly welding and the like; the production efficiency is high, the assembly precision is high, the production cost is low, and the safety and the controllability are realized.

Description

Bridge U-shaped rib assembling device and construction method thereof

Technical Field

The invention belongs to the field of steel box girder manufacturing and construction, and particularly relates to a bridge U-shaped rib assembling device and a construction method thereof.

Background

In large-span bridges in China, most of the orthotropic steel bridge deck structures stiffened by the U-shaped ribs are adopted. The U-shaped ribs are important components of orthotropic steel bridge decks and are important components of bridges, and the U-shaped ribs can provide higher torsional rigidity and bending rigidity, improve the stress state of the whole bridge deck and help the orthotropic bridges to realize light and efficient bridge deck structures, so that the U-shaped ribs become the most common section form of modern orthotropic bridge decks. The U-shaped ribs generally adopted in bridge engineering are 6-8mm thick and are more in number, and the U-shaped ribs are simply assembled by using a traditional assembling method in the prior engineering, so that the problems of time and labor waste and low working efficiency exist on one hand; on the other hand, the assembly precision of the U-shaped rib is greatly influenced by human factors, and the subsequent welding quality of the U-shaped rib is greatly influenced by the precision.

The construction method for assembling the steel bridge panel and the U-shaped rib, which is proposed by the Chinese patent publication CN107881918A, has the defects that the jack cannot be accurately matched with the U-shaped rib, the matching accuracy consistency is poor, and the working efficiency is influenced.

Disclosure of Invention

The invention provides a bridge U-shaped rib assembling device and a construction method thereof, and particularly solves the technical problems of low working efficiency and low precision of U-shaped rib assembling in the bridge manufacturing and construction process aiming at assembling and welding U-shaped ribs of a large-span steel structure bridge.

In order to solve the technical problems, the invention adopts the technical scheme that:

a bridge U-shaped rib assembling device comprises:

the U-shaped ribs are arranged on the inner side of the vertical frames and vertically arranged on the base surface between the vertical frames, and the heights and the slopes of the U-shaped ribs are different from each other;

the fixing part is used for fixing the U-shaped rib and at least comprises a baffle plate component with a trapezoidal structure, the large-diameter end of the baffle plate component is arranged close to the upper end face of the U-shaped rib and is in contact with the upper end face of the U-shaped rib, and the included angle of a bus of the baffle plate component is adjustable and is the same as the inclination of the U-shaped rib;

the cross beam is positioned between the vertical frames on the two sides and used for placing the fixing part, and the cross beam is perpendicular to the vertical frames;

and a control part for controlling the positions of the beam and the fixing part;

the control part controls the fixing part to move horizontally or vertically along the length direction of the cross beam or the height direction of the vertical frame, so that the baffle plate assembly is arranged right above the U-shaped rib and is in contact fit with the U-shaped rib;

when the combined type U-shaped rib is assembled, the matching relation between the fixing part and the U-shaped rib is as follows:

(L1-L3):(L1-L2)＝H2:H1

wherein L1 is the width of the lower end face of the U-shaped rib;

l2 is the width of the upper end face of the U-shaped rib;

l3 is the width of the upper end face of the baffle plate assembly;

h1 is the U-shaped rib height;

h2 is the height of the upper end surface of the baffle plate assembly from the base surface.

Furthermore, the fixed part also comprises a movable wheel capable of sliding along the beam and two clamping pieces for fixing the position of the baffle plate assembly, the baffle plate assembly is arranged below the movable wheel, and the upper end surface of the baffle plate assembly is connected with the movable wheel through the clamping pieces; the baffle plate assemblies are symmetrically arranged relative to the center line of the movable wheel in the vertical direction.

Furthermore, the movable wheel is of a circular structure, the movable wheel is perpendicular to the beam, and the central axis of the movable wheel is arranged in the middle of the height of the beam.

Furthermore, an infrared measuring instrument is arranged on the lower end face of the central axis of the movable wheel and used for adjusting the central line of the movable wheel in the vertical direction to be superposed with the central line of the U-shaped rib; the data measured by the measuring instrument is transmitted to the control part.

Furthermore, the baffle plate assembly comprises side plates which are symmetrically arranged and a bottom plate which is arranged on the lower end face of each side plate and connected with the side plates, and the length of each side plate and the length of each bottom plate can be adjusted.

Furthermore, the included angle of the two side plates is matched with the included angle of the U-shaped rib.

Furthermore, the two clamping pieces are respectively and independently connected with the upper end faces of the side plates, and the clamping pieces can rotate and move along the circumference of the movable wheel.

Furthermore, the control part comprises a hydraulic cylinder which is arranged below the cross beam and controls the cross beam to move and an external controller which is used for receiving and processing data measured by the measuring instrument, and the controller is respectively connected with the hydraulic cylinder, the measuring instrument and the movable wheels.

Furthermore, two hydraulic cylinders are arranged and are respectively arranged at two ends of the cross beam.

A construction method for assembling a U-shaped rib of a bridge adopts the assembling device, and comprises the following steps:

s1: marking the center lines of the placing positions of the U-shaped ribs on the vertical frame and the base surface according to a construction drawing, and placing the U-shaped ribs on the base surface one by one;

s2: according to the height of each U-shaped rib, the vertical height of the cross beam is adjusted through the control part, so that the baffle plate assembly and the U-shaped ribs meet the following conditions: (L1-L3) (L1-L2) ═ H2: H1;

s3: adjusting the central positions of the fixing part and the U-shaped rib by an infrared measuring instrument arranged on the lower end face of the fixing part, and enabling the vertical central line of the baffle plate assembly to coincide with the central line of the U-shaped rib;

s4: the baffle plate assembly is tightly fixed by the clamping piece in the fixing part, so that the angle of the baffle plate assembly is matched with the side edge of the U-shaped rib;

s5: fixing the U-shaped rib through the baffle plate assembly, and then performing spot welding or other process construction on the U-shaped rib;

s6: repeating the steps S1-S5, and assembling and fixing other U-shaped ribs.

Compared with the prior art, by adopting the technical scheme, the fixing part, the cross beam and the control part are matched together, the U-shaped ribs with different heights and inclinations can be assembled and fixed at one time, and the consistency and the accuracy are good; meanwhile, the welding device can also be applied to structures such as small H-shaped steel assembly welding, T-shaped steel assembly welding and the like; the production efficiency is high, the assembly precision is high, the production cost is low, and the safety and the controllability are realized.

The fixed part is provided with a plurality of groups of movable wheels with adjustable positions on the beam, and the circumference of the movable wheels is provided with clamping pieces which are fixedly connected with the baffle plate assembly and can adjust the angle of the baffle plate assembly, so that the U-shaped ribs with different specifications can be conveniently changed in angle to achieve the purpose of fixing the U-shaped ribs; and the U-shaped rib is not deformed due to improper force application and uneven stress. The problems of low assembly efficiency and poor assembly precision of the U-shaped ribs of the steel box girder in the construction process are solved, and the steel box girder is multipurpose and avoids resource waste.

Drawings

FIG. 1 is a schematic structural view of a U-shaped rib assembling apparatus according to an embodiment of the present invention;

FIG. 2 is an enlarged view of section A of one embodiment of the present invention;

FIG. 3 is a schematic structural view of another U-shaped rib assembling device according to another embodiment of the present invention.

In the figure:

10. stand 20, base 30, U-shaped rib

40. Crossbeam 50, fixed part 51, loose wheel

52. Side plate 53, bottom plate 54 and fastener

55. Surveying instrument 60, control unit 61, and hydraulic cylinder

Detailed Description

The invention is described in detail below with reference to the figures and specific embodiments.

The present embodiment provides a bridge U-shaped rib assembling device, as shown in fig. 1, including: a plurality of U-shaped ribs 30 which are arranged at the inner side of the vertical frame 10 which is arranged longitudinally and are vertically arranged on the base surface 20 between the vertical frames 10, wherein the height and the inclination of the U-shaped ribs 30 are different from each other; the fixing part 50 is used for fixing the U-shaped rib 30, the fixing part 50 at least comprises a baffle plate component with a trapezoidal structure, the large-diameter end of the baffle plate component is arranged close to the upper end face of the U-shaped rib 30 and is in contact with the upper end face of the U-shaped rib 30, and the included angle theta of a bus of the baffle plate component is adjustable and is the same as the inclination beta of the U-shaped rib 30; the cross beam 40 is positioned between the vertical frames 10 at the two sides and used for placing the fixing part 50, and the cross beam 40 is arranged perpendicular to the vertical frames 10; and a control portion 60 for controlling the positions of the cross member 40 and the fixing portion 50. The control part 60 controls the fixing part 50 to move horizontally or vertically along the length direction of the cross beam 40 or the height direction of the stand 10, so that the baffle plate assembly in the fixing part 50 is conveniently arranged right above the U-shaped rib 30 and is in contact fit with the U-shaped rib 30; when assembled, the fitting relationship between the baffle plate assembly in the fixing portion 50 and the U-shaped rib 30 is as follows:

(L1-L3):(L1-L2)＝H2:H1

wherein, L1 is the width of the lower end face of the U-shaped rib 30;

l2 is the upper end face width of the U-shaped rib 30;

l3 is the width of the upper end face of the baffle plate assembly;

h1 is the height of U-shaped rib 30;

h2 is the height of the upper end face of the baffle assembly in the fixture 50 from the base 20.

That is, the ratio of the difference between the width L1 of the lower end surface of the U-shaped rib 30 and the width L3 of the upper end surface of the baffle plate assembly to the width L1 of the lower end surface of the U-shaped rib 30 and the difference between the width L2 of the upper end surface of the U-shaped rib 30 and the width L2 of the upper end surface of the U-shaped rib 30 is equal to the ratio of the height H2 of the upper end surface of the baffle plate assembly from the base surface 20 to the height H1 of the U-shaped rib 30 in the fixing portion 50, at this time, the included angle θ of the bus bar of the baffle plate assembly is the same as the inclination β of the U-shaped rib 30, so that the side plates 52 on both sides of the baffle plate assembly are arranged in the same direction as the inclined sides of the U-shaped rib 30, and the bottom plate on the lower end of the baffle plate assembly is completely matched with the upper end.

As shown in fig. 2, the fixing part 50 further comprises a movable wheel 51 capable of sliding along the beam 40 and two clamping pieces 54 for fixing the position of the baffle plate assembly, the baffle plate assembly is arranged below the movable wheel 51, and the upper end surface of the baffle plate assembly is connected with the movable wheel 51 through the clamping pieces 54; the barrier assembly is disposed symmetrically with respect to the center line of the movable wheel 51 in the vertical direction. The baffle plate assembly comprises side plates 52 which are symmetrically arranged and a bottom plate 53 which is arranged on the lower end face of the side plate 52 and connected with the side plate 52, and the length of the side plate 52 and the length of the bottom plate 53 can be adjusted. The positions of the two side plates can be further adjusted and fixed through the position adjustment of the clamping piece 54, so that the included angle theta of the two side plates 52 is adjusted to be matched with the included angle beta of the U-shaped rib 30 to adapt to the fixation of the U-shaped rib 30 with different slopes beta, and fig. 3 shows another U-shaped rib 30 with different heights and slopes, which is similar to that of fig. 1 of the first embodiment and is not detailed here.

Further, the movable wheel 51 is of a circular structure and is arranged perpendicular to the cross beam 40, and the central axis of the movable wheel 51 is arranged in the middle position of the height of the cross beam 40. An infrared measuring instrument 55 is arranged on the lower end face of the central axis of the movable wheel 51 and is used for adjusting the central line of the movable wheel 51 in the vertical direction to be superposed with the central line of the U-shaped rib 30; the data measured by the measurement instrument 55 is transmitted to a controller (not shown) in the control section 60. Centering control can be carried out automatically through setting up measuring apparatu 55, need not personnel's manual measurement adjustment, degree of automation is high and safe controllable, and work efficiency is high.

The two seizing pieces 54 are independently connected to the upper end surfaces of the side plates 53, respectively, and the seizing pieces 54 are rotatably movable along the circumference of the movable wheel 51.

Further, the control unit 60 includes a hydraulic cylinder 61 disposed below the beam 40 and controlling the movement of the beam 40, and an external controller (not shown) for receiving and processing data measured by the measuring instrument 55, and the controller is connected to the hydraulic cylinder 61, the measuring instrument 55, and the movable wheels 51, respectively. The specifications and types of the controller, the hydraulic cylinder 61 and the measuring instrument 55 are common in the art, and are not particularly limited herein. Two hydraulic cylinders 61 are arranged at two ends of the cross beam 40 respectively, wherein one hydraulic cylinder 61 is used for adjusting the up-down position of the cross beam 40, and the other hydraulic cylinder 61 is used for adjusting the position of the fixing part 50 on the cross beam 40.

In this embodiment, a plurality of sets of movable wheels 51 with adjustable positions are arranged on the beam through the fixing part 50, and the periphery of the movable wheels 51 is provided with clamping pieces 54 which are fixedly connected with the baffle assembly and can adjust the angle of the baffle assembly, so that the angle of the baffle assembly can be conveniently changed for the U-shaped ribs 30 with different specifications, and the purpose of fixing the U-shaped ribs 30 is achieved; and the U-shaped rib 30 is not deformed due to improper force application and uneven force application. The problems of low assembly efficiency and poor assembly precision of the U-shaped ribs 30 of the steel box girder in the construction process are solved, and the steel box girder is multipurpose and avoids resource waste.

The fixing part 50, the cross beam 40 and the control part 60 are matched together, so that the U-shaped ribs 30 with different heights and inclinations can be assembled and fixed at one time, and the U-shaped rib assembling and fixing device is good in consistency and high in accuracy. Meanwhile, the assembly device can also be used for fixedly welding small H-shaped steel assemblies or T-shaped steel assemblies; the assembling and fixing device has the advantages of high assembling and fixing efficiency, high assembling precision, low production cost, safety and controllability.

A construction method for assembling a U-shaped rib of a bridge adopts the assembling device, and comprises the following steps:

s1: marking the center lines of the positions where the U-shaped ribs 30 are placed on the vertical frame 10 and the base surface 20 according to the construction drawing, and placing the U-shaped ribs 30 on the base surface one by one;

s2: the vertical height of the cross member 40 is adjusted by the control part 60 according to the height of each U-shaped rib 30 so that the baffle plate assembly in the fixing part 50 and the U-shaped rib 30 should satisfy: (L1-L3) (L1-L2) ═ H2: H1;

s3: the center positions of the fixing part 50 and the U-shaped rib 30 are adjusted through an infrared measuring instrument 55 arranged on the lower end face of the fixing part 50, and the vertical center line of the baffle component in the fixing part 50 is superposed with the center line of the U-shaped rib 30;

s4: the baffle plate component in the fixing part 50 is tightly fixed by the clamping piece 54 in the fixing part 50, so that the angle of the baffle plate component is matched with the side edge of the U-shaped rib 30;

s5: fixing the U-shaped rib 30 through a baffle plate assembly, and then performing spot welding or other process construction on the U-shaped rib 30;

s6: repeating the steps S1-S5, and assembling and fixing the other U-shaped ribs 30.

1. The fixing part, the cross beam and the control part are matched together, so that the U-shaped ribs with different heights and slopes can be assembled and fixed at one time, and the consistency and the accuracy are good; meanwhile, the welding device can also be applied to structures such as small H-shaped steel assembly welding, T-shaped steel assembly welding and the like; the production efficiency is high, the assembly precision is high, the production cost is low, and the safety and the controllability are realized.

2. The fixed part of the invention is provided with a plurality of groups of movable wheels with adjustable positions on the beam, and the circumference of the movable wheels is provided with clamping pieces which are fixedly connected with the baffle plate assembly and can adjust the angle of the baffle plate assembly, so that the U-shaped ribs with different specifications can be conveniently changed to achieve the purpose of fixing the U-shaped ribs; and the U-shaped rib is not deformed due to improper force application and uneven stress. The problems of low assembly efficiency and poor assembly precision of the U-shaped ribs of the steel box girder in the construction process are solved, and the steel box girder is multipurpose and avoids resource waste.

The embodiments of the present invention have been described in detail, and the description is only for the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.

Claims (10)

1. A bridge U type rib assemblage device which characterized in that includes:

the U-shaped ribs are arranged on the inner side of the vertical frames and vertically arranged on the base surface between the vertical frames, and the heights and the slopes of the U-shaped ribs are different from each other;

the fixing part is used for fixing the U-shaped rib and at least comprises a baffle plate component with a trapezoidal structure, the large-diameter end of the baffle plate component is arranged close to the upper end face of the U-shaped rib and is in contact with the upper end face of the U-shaped rib, and the included angle of a bus of the baffle plate component is adjustable and is the same as the inclination of the U-shaped rib;

the cross beam is positioned between the vertical frames on the two sides and used for placing the fixing part, and the cross beam is perpendicular to the vertical frames;

and a control part for controlling the positions of the beam and the fixing part;

the control part controls the fixing part to move horizontally or vertically along the length direction of the cross beam or the height direction of the vertical frame, so that the baffle plate assembly is arranged right above the U-shaped rib and is in contact fit with the U-shaped rib;

when the combined type U-shaped rib plate is assembled, the baffle plate assembly and the U-shaped rib are matched in a relationship that:

(L1-L3):(L1-L2)＝H2:H1

wherein L1 is the width of the lower end face of the U-shaped rib;

l2 is the width of the upper end face of the U-shaped rib;

l3 is the width of the upper end face of the baffle plate assembly;

h1 is the U-shaped rib height;

h2 is the height of the upper end surface of the baffle plate assembly from the base surface.

2. The device of claim 1, wherein the fixing portion further comprises a movable wheel slidable along the beam and two fasteners for fixing the position of the baffle assembly, the baffle assembly is disposed below the movable wheel, and the upper end surface of the baffle assembly is connected to the movable wheel through the fasteners; the baffle plate assemblies are symmetrically arranged relative to the center line of the movable wheel in the vertical direction.

3. The device as claimed in claim 2, wherein the movable wheels are of a circular structure, the movable wheels are perpendicular to the cross beam, and the central axes of the movable wheels are arranged at the middle position of the height of the cross beam.

4. The device for assembling the U-shaped rib of the bridge according to claim 2 or 3, wherein an infrared measuring instrument is arranged on the lower end surface of the central axis of the movable wheel and used for adjusting the central line of the movable wheel in the vertical direction to be coincident with the central line of the U-shaped rib; the data measured by the measuring instrument is transmitted to the control part.

5. The bridge U-shaped rib assembling device as claimed in claim 4, wherein the baffle plate assembly comprises symmetrically arranged side plates and a bottom plate which is arranged on the lower end surfaces of the side plates and connected with the side plates, and the length of the side plates and the length of the bottom plate are adjustable.

6. The device as claimed in claim 5, wherein the angle between the two side plates is matched with the angle between the U-shaped ribs.

7. A U-shaped rib assembling device for bridge according to claim 5 or 6, wherein two said clip members are independently connected to the upper end surfaces of said side plates, respectively, and said clip members are rotatably moved along the circumference of said movable wheel.

8. The device as claimed in claim 7, wherein the control part comprises a hydraulic cylinder disposed under the beam and controlling the beam to move and an external controller for receiving and processing data measured by the measuring instrument, and the controller is connected to the hydraulic cylinder, the measuring instrument and the movable wheel.

9. The device as claimed in claim 8, wherein two hydraulic cylinders are provided, respectively disposed at both ends of the cross member.

10. A construction method for assembling a U-shaped rib of a bridge, which is characterized in that the assembling device according to any one of claims 1-9 is adopted, and the steps comprise:

s1: marking the center lines of the placing positions of the U-shaped ribs on the vertical frame and the base surface according to a construction drawing, and placing the U-shaped ribs on the base surface one by one;

s2: according to the height of each U-shaped rib, the vertical height of the cross beam is adjusted through the control part, so that the baffle plate assembly and the U-shaped ribs meet the following conditions: (L1-L3) (L1-L2) ═ H2: H1;

s3: adjusting the central positions of the fixing part and the U-shaped rib by an infrared measuring instrument arranged on the lower end face of the fixing part, and enabling the vertical central line of the baffle plate assembly to coincide with the central line of the U-shaped rib;

s4: the baffle plate assembly is tightly fixed by the clamping piece in the fixing part, so that the angle of the baffle plate assembly is matched with the side edge of the U-shaped rib;

s5: fixing the U-shaped rib through the baffle plate assembly, and then performing spot welding or other process construction on the U-shaped rib;

s6: repeating the steps S1-S5, and assembling and fixing other U-shaped ribs.

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