CN110924315A - Device for improving construction stability of walking type pushing equipment - Google Patents
Device for improving construction stability of walking type pushing equipment Download PDFInfo
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- CN110924315A CN110924315A CN201910929507.8A CN201910929507A CN110924315A CN 110924315 A CN110924315 A CN 110924315A CN 201910929507 A CN201910929507 A CN 201910929507A CN 110924315 A CN110924315 A CN 110924315A
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- stiffening
- bottom plate
- pile casing
- transverse
- jack
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- 238000010276 construction Methods 0.000 title claims abstract description 26
- 238000003466 welding Methods 0.000 claims abstract description 10
- 230000000694 effects Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 8
- 230000001681 protective effect Effects 0.000 description 5
- 239000003351 stiffener Substances 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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Classifications
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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
- E01D21/06—Methods or apparatus specially adapted for erecting or assembling bridges by translational movement of the bridge or bridge sections
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a device for improving the construction stability of walking type pushing equipment, which comprises a top plate, a bottom plate, longitudinal stiffening, transverse stiffening, a pile casing and pile casing stiffening; the connection of the top plate, the bottom plate, the longitudinal stiffening, the transverse stiffening, the pile casing and the pile casing stiffening is in a welding form, and the bottom plate, the longitudinal stiffening and the transverse stiffening are welded and then welded with the top plate. Two plug welding holes are arranged at the upper part of the top plate corresponding to the transverse stiffening position. The arrangement distance of longitudinal stiffening and transverse stiffening in the pad beam device is determined by calculation according to the stress condition of the pushing equipment, so that the integral compressive strength of the pad beam is ensured. The pad beam is arranged above the jack and combined with the jack, so that the effect of increasing the contact area between the jack and the bridge is achieved.
Description
Technical Field
The invention relates to bridge incremental launching construction, in particular to an auxiliary device of a walking incremental launching jack, which can effectively improve the construction stability of the walking incremental launching jack.
Background
The steel box girder pushing construction method has the advantages of high construction speed, small influence on existing traffic, strong adaptability to complex working conditions and the like, is widely applied to construction of the overpass bridge, and is continuously developed and improved.
At present, the pushing process adopted in domestic bridge construction is a dragging type multipoint continuous pushing method and a walking type pushing construction method. The walking pushing construction method is that the main beam and the guide beam are pushed forwards by means of the friction force between the beam and the top of the jack in the jacking and translating process of the walking pushing jack. The construction process is characterized in that:
1) the walking type automatic pushing equipment consists of a mechanical system, a hydraulic system and an electric control system, and a sliding surface is changed into the inside of the pushing equipment from a slide way beam by the equipment, so that the forward friction force of pushing is greatly reduced, the bridge pier or the temporary pier is prevented from bearing overlarge horizontal load in the construction process, and the real self-balancing pushing is realized.
2) The walking type pushing jack has the functions of lifting, advancing and retreating and left-right deviation rectifying three-way displacement, is connected with a pump station and synchronously controlled by an operation platform, and is high in mechanization.
3) The walking type automatic pushing equipment is contacted with a bottom plate of the bridge through the jacking jack and pushes the beam forwards by means of the friction force between the beam and the top surface of the jack, so that the stability of the contact surface of the walking type automatic pushing equipment is especially important to control.
The contact area between the jack and the bridge bottom plate is the area of the upper part of the jack, the jack is easy to slide in the jacking and jacking processes, and the contact area is small, so that the steel box girder bottom plate is likely to deform due to large pressure intensity. Therefore, to ensure the stability of the contact surface, the contact area must be increased. The design can solve the construction problem.
Disclosure of Invention
The invention aims to increase the contact area between a jack and a bridge bottom plate so as to ensure the stability of walking type pushing construction.
In order to achieve the purpose, the technical scheme adopted by the invention is a beam pad device for increasing the upper area of a jack, which comprises a top plate D1, a bottom plate D2, a longitudinal stiffening D3, a transverse stiffening D4, a pile casing D5 and a pile casing stiffening D6; the cushion beam device is of a box structure, a top plate D1 and a bottom plate D2 are symmetrically fixed on the upper side and the lower side of the cushion beam respectively, the interior of the cushion beam device is arranged by longitudinal stiffening D3 and transverse stiffening D4 at equal intervals, the longitudinal stiffening D3 and the transverse stiffening D4 are vertically arranged along longitudinal and transverse intersection respectively, a pile casing D5 is arranged below the bottom plate D2, and the side part of the pile casing D5 is reinforced and connected by a pile casing stiffening D6. The casing D5 is arranged at the center of the bottom plate D2, and the inner diameter of the casing D5 matches the outer diameter of the jack.
The connection of the top plate D1, the bottom plate D2, the longitudinal stiffening D3, the transverse stiffening D4, the casing D5 and the casing stiffening D6 are all in a welding mode, and the bottom plate D2, the longitudinal stiffening D3 and the transverse stiffening D4 are welded and connected with the top plate D1.
Two plug welding holes are arranged at the upper part of the top plate D1 corresponding to the position of the transverse stiffening D4.
The arrangement distance of longitudinal stiffening D3 and transverse stiffening D4 in the pad beam device is determined by calculation according to the stress condition of the pushing equipment, so that the integral compressive strength of the pad beam is ensured. The pad beam is arranged above the jack and combined with the jack, so that the effect of increasing the contact area between the jack and the bridge is achieved.
Drawings
Fig. 1 is a schematic plan view of a beam-laying device for improving the construction stability of a walking-type jack.
Fig. 2 is a schematic elevation view of a beam-laying device for improving the construction stability of the walking-type jack.
Fig. 3 is a physical diagram of a beam-laying device for improving the construction stability of the walking-type pushing jack.
In the figure: d1, a top plate, D2, a bottom plate, D3, longitudinal stiffening, D4, transverse stiffening, D5, a pile casing, D6 and pile casing stiffening.
Detailed Description
As shown in fig. 1-2, a beam-laying device for improving the construction stability of a walking jacking jack comprises a top plate D1, a bottom plate D2, a longitudinal stiffener D3, a transverse stiffener D4, a pile casing D5 and a pile casing stiffener D6.
A kind of bolster device which increases the upper portion area of the jack, this bolster device includes roof D1, bottom plate D2, longitudinal stiffening D3, transverse stiffening D4, protects a tube D5 and protects a tube stiffening D6; the cushion beam device is of a box structure, a top plate D1 and a bottom plate D2 are symmetrically fixed on the upper side and the lower side of the cushion beam respectively, the interior of the cushion beam device is arranged by longitudinal stiffening D3 and transverse stiffening D4 at equal intervals, the longitudinal stiffening D3 and the transverse stiffening D4 are vertically arranged along longitudinal and transverse intersection respectively, a pile casing D5 is arranged below the bottom plate D2, and the side part of the pile casing D5 is reinforced and connected by a pile casing stiffening D6. The casing D5 is arranged at the center of the bottom plate D2, and the inner diameter of the casing D5 matches the outer diameter of the jack.
All the components are connected in a welding mode, the bottom plate D2, the longitudinal stiffening D3 and the transverse stiffening D4 are welded and connected with the top plate D1, and two plug welding holes are formed in the upper portion of the top plate D1 corresponding to the position D4 for welding.
The arrangement distance of longitudinal stiffening D3 and transverse stiffening D4 in the pad beam device is determined by calculation according to the stress condition of the pushing equipment, so that the integral compressive strength of the pad beam is ensured. The pad beam is arranged above the jack and combined with the jack, so that the effect of increasing the contact area between the jack and the bridge is achieved.
FIG. 3 is a diagram of a kind of beam-laying device, which is a box structure with transverse and longitudinal stiffeners densely distributed inside the box. When the jack is installed, the protective sleeve is sleeved on the upper part of the jack, so that the protective sleeve is tightly attached to the outer wall of the jack, and the protective sleeve and the jack are combined into a whole to be synchronous due to the limiting function of the protective sleeve in the free moving process of the jack.
The device has the advantages that the pad beam and the jack are combined, so that the protective cylinder at the lower part of the pad beam is tightly attached to the jack, the contact area between the pushing equipment and the bottom surface of the bridge is indirectly increased, and the construction stability of the walking pushing equipment is further improved. Because the area of the upper part of the pad beam is large, the problem of deformation of the bottom plate caused by large bearing pressure at the bottom of the bridge is avoided, the pad can be copied above the pad beam according to construction requirements, and the operability of the incremental launching construction process is improved.
Claims (4)
1. The utility model provides an improve walking top pushes away device construction stability's device which characterized in that: the device is a beam-padding device for increasing the upper area of a jack, and the beam-padding device comprises a top plate (D1), a bottom plate (D2), longitudinal stiffening (D3), transverse stiffening (D4), a pile casing (D5) and pile casing stiffening (D6); the pad beam device is of a box structure, a top plate (D1) and a bottom plate (D2) are symmetrically fixed on the upper side and the lower side of the pad beam respectively, the interior of the pad beam device is distributed by longitudinal stiffening (D3) and transverse stiffening (D4) at equal intervals, the longitudinal stiffening (D3) and the transverse stiffening (D4) are vertically distributed along longitudinal and transverse intersection respectively, a pile casing (D5) is arranged below the bottom plate (D2), and the side part of the pile casing (D5) is reinforced and connected by a pile casing stiffening (D6); the protection cylinder (D5) is arranged at the center of the bottom plate (D2), and the inner diameter of the protection cylinder (D5) is matched with the outer diameter of the jack.
2. The device for improving the construction stability of the walking type pushing equipment as claimed in claim 1, wherein: the top plate (D1), the bottom plate (D2), the longitudinal stiffening (D3), the transverse stiffening (D4), the pile casing (D5) and the pile casing stiffening (D6) are connected in a welding mode, and the bottom plate (D2), the longitudinal stiffening (D3) and the transverse stiffening (D4) are welded and then connected with the top plate (D1) in a welding mode.
3. The device for improving the construction stability of the walking type pushing equipment as claimed in claim 1, wherein: two plug welding holes are arranged at the upper part of the top plate (D1) corresponding to the position of the transverse stiffening (D4).
4. The device for improving the construction stability of the walking type pushing equipment as claimed in claim 1, wherein: the arrangement distance of longitudinal stiffening (D3) and transverse stiffening (D4) inside the pad beam device is determined by calculation according to the stress condition of the jacking equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910929507.8A CN110924315A (en) | 2019-09-27 | 2019-09-27 | Device for improving construction stability of walking type pushing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910929507.8A CN110924315A (en) | 2019-09-27 | 2019-09-27 | Device for improving construction stability of walking type pushing equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110924315A true CN110924315A (en) | 2020-03-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910929507.8A Pending CN110924315A (en) | 2019-09-27 | 2019-09-27 | Device for improving construction stability of walking type pushing equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110924315A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112813831A (en) * | 2020-12-28 | 2021-05-18 | 中铁隧道集团一处有限公司 | Limiting and overturning preventing device for supporting system of bridge aerial work platform and construction method |
-
2019
- 2019-09-27 CN CN201910929507.8A patent/CN110924315A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112813831A (en) * | 2020-12-28 | 2021-05-18 | 中铁隧道集团一处有限公司 | Limiting and overturning preventing device for supporting system of bridge aerial work platform and construction method |
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