CN111926685A - Shear force conversion component for transversely moving high-speed railway continuous beam and conversion method - Google Patents
Shear force conversion component for transversely moving high-speed railway continuous beam and conversion method Download PDFInfo
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- CN111926685A CN111926685A CN202010838262.0A CN202010838262A CN111926685A CN 111926685 A CN111926685 A CN 111926685A CN 202010838262 A CN202010838262 A CN 202010838262A CN 111926685 A CN111926685 A CN 111926685A
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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
- E01D19/00—Structural or constructional details of 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
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Abstract
The invention relates to the field of bridge engineering, in particular to a shear force conversion component for transversely moving a continuous beam of a high-speed railway and a conversion method. The shear force conversion component comprises an upper plate and an abutting component, wherein the surface of the upper plate is fixedly connected with the abutting component, and the upper plate comprises a protruding end protruding out of the abutting component. The shear conversion method is based on the shear conversion member. The shear force conversion component provided by the invention can transfer the shear force between the upper and lower seat plates of the longitudinal movable support or the fixed support of the continuous beam caused by the transverse displacement of the abutment to the shear force conversion component, thereby allowing the upper and lower seat plates of the support to be stably separated, avoiding vibration and facilitating the subsequent correction operation of the continuous beam body.
Description
Technical Field
The invention relates to the field of bridge engineering, in particular to a shear force conversion component for transversely moving a continuous beam of a high-speed railway and a conversion method.
Background
The construction of high-speed railways in China is developed rapidly, the total operation mileage reaches 3.5 kilometers at present, the total length of high-speed railway bridges is nearly 1.8 kilometers, and the total number of the high-speed railway bridges reaches 3 thousands of seats. The bridge is used as an important component of a high-speed railway, and the structural deformation requirement of the bridge is very strict in order to meet the requirement of high-speed operation of a train. Under the influence of external factors such as geological condition change and rainfall, part of bridge pier foundations generate transverse deviation, so that the bridge bodies are driven to transversely move, the line shape on the bridge is changed, and the railway operation safety is influenced. When the deformation value exceeds the adjusting range (about +/-6 mm in the transverse direction) of the track structure, measures must be taken to correct the bridge.
The high-speed railway bridge deviation correction is mainly realized by transversely moving a beam body to return. The existing transverse beam moving technology is mainly used for a simply supported beam bridge, and because the transverse bridge direction is a statically determinate structure, large shearing force cannot be generated in a support after the abutment is transversely displaced, the support can be easily dismounted, and then the beam moving operation is carried out. However, for a continuous beam structure, particularly a continuous turnout beam with small span and large width, the transverse rigidity of the continuous beam structure is larger and the continuous turnout beam is a hyperstatic structure, and when only part of abutments are displaced or the whole abutments are displaced but the abutments are uneven, the beam body can restrain the abutments with larger deformation, so that a large shearing force is generated on the support between the pier beams. Shear force exists between the upper seat plate and the lower seat plate of the longitudinal movable support and the fixed support, and also exists in a connecting bolt between the support and a beam or an abutment, the bolt cannot be screwed out, the support cannot be disassembled, and transverse beam moving cannot be carried out. In order to completely eliminate shear forces in the support and pier beam connecting bolts, the beam body must be loaded laterally. When the transverse force loaded along the stress direction of the beam body is the same as the transverse force acted on the beam body by the abutment, the shearing force is just eliminated. The beam body does not usually have other transverse loading parts except the anti-falling beam stop block, but the anti-falling beam stop block is low in bearing capacity and not enough to release restraining force between pier beams. At the moment, the upper seat plate and the lower seat plate of the support can be separated only through the vertical top beam, and then the beam is transversely moved. If the beam body is forced to be lifted vertically, the upper and lower seat plates of the support are separated from each other when the lifting height exceeds the occlusion height between the upper and lower seat plates of the support. At the moment of the disengagement of the upper and lower seat plates of the support, the violent internal force change can cause structural vibration, the influence caused by the structural vibration cannot be controlled, and the safety of equipment on the bridge cannot be ensured, which is unacceptable for the high-speed railway in operation.
In addition, the existing operation line beam body is used for deviation correction, the operation space is limited, and no space is provided for arranging a large-tonnage new reaction support.
Disclosure of Invention
The invention aims to: aiming at the problems that the longitudinal movable support or the fixed support anchoring bolt is difficult to screw out and uncontrollable vibration is caused if the beam body is lifted vertically and the upper base plate and the lower base plate of the support of the longitudinal movable support or the fixed support are forced to be separated when the continuous beam is rectified in the prior art, the shear force conversion component and the shear force conversion method for the transverse moving beam of the continuous beam of the high-speed railway are provided.
In order to achieve the purpose, the invention adopts the technical scheme that:
the shear force conversion component comprises an upper plate and an abutting component, wherein the surface of the upper plate is fixedly connected with the abutting component, and the upper plate comprises a protruding end protruding out of the abutting component. When the shear force conversion component is used, the shear force conversion component is arranged between two supports of the continuous beam along the transverse bridge direction, and at least one of the two supports is a longitudinal movable support or a fixed support. And the convex end of the upper plate is abutted against the upper seat plate of one support, and a jack is arranged between the abutting component and the supporting cushion of the other support. The protruding end faces to the direction consistent with the displacement direction of the abutment, and the protruding end can be in contact with an upper seat plate of a longitudinal movable support, a multidirectional movable support, a transverse movable support or a fixed support. The jack is extended out, the output force of the jack is applied to the upper seat plate through the shear force conversion component, the beam body is further deformed, the pier is deformed in a reducing mode, and then the extrusion force between the upper seat plate and the lower seat plate of the longitudinal movable support and the fixed support is gradually reduced until the extrusion force is reduced to 0. At this point, the shear forces within the carrier are transferred to the shear transfer member. Then jacking up the bridge roof beam body in vertical direction, because go up the bedplate and no longer have horizontal extrusion force between the bedplate down, consequently, when last bedplate and lower bedplate throw off, no longer have violent internal force and change, can not produce the structural vibration. After the upper seat plate is separated from the lower seat plate, the jack is slowly unloaded, and the beam body is freely deformed until the shear force conversion member is separated from the upper seat plate of the support which is abutted against the beam body. At the moment, shearing forces between the upper base plate and the lower base plate of the support and on the anchor bolt of the support caused by the deflection of the abutment are eliminated, and the next beam moving operation can be carried out.
Because the upper plate is provided with the end part protruding out of the abutting component, only the protruding end of the upper plate is contacted with the upper seat plate of the support when in use. By adopting the plate-shaped structural design, the contact area between the upper plate and the upper seat plate of the support is ensured through larger plate width, and the limitation of narrow space below the bridge to the operation is adapted through smaller plate height.
As an optional scheme of the present invention, the abutting member includes at least two webs, the at least two webs are disposed at intervals, and side surfaces of the two webs are both fixedly connected to the plate surface of the upper plate. By providing the abutment member in the above-described structure, the strength of the abutment member can be ensured while having a relatively small weight.
As an optional scheme of the invention, the lower profile of the web plate comprises a first straight section, a lower broken line section and a second straight section which are connected in sequence; the first straight section is parallel to the surface of the upper plate, and the second straight section is parallel to the surface of the upper plate. The distance between the first flat section and the upper plate is larger than the distance between the second flat section and the upper plate, and the second flat section is close to the protruding end of the upper plate relative to the first flat section. With the above structure, the first straight section is used to enable the lower portion of the abutment member to be stably placed on the bridge abutment. And the distance between the first straight section and the upper plate is relatively large, i.e. the height of the web at the first straight section is high, so that the web has high strength. The second flat section is arranged, so that the web plate can extend into a narrow area between the continuous beam body and the supporting cushion stone of the support at the second flat section, the upper plate is supported through the web plate, and the situation that the strength of the upper plate is insufficient due to the fact that the length of the upper plate protruding out of the web plate is too long is avoided. The lower broken line section connects the first straight section and the second straight section, so that the web forms a triangular structure at the lower broken line section, the stability is strong, the change of the structural profile is gentle, and the obvious stress concentration phenomenon can be avoided.
As an alternative to the invention, the height of the web is gradually increased at the lower fold line segment.
As an alternative of the present invention, the shear conversion member for a continuous beam transverse displacement beam further comprises a base plate, and the first straight section of the web is fixedly connected with the base plate.
As an optional scheme of the present invention, the upper profile of the web includes an upper broken line segment and a third straight segment which are connected in sequence; the third flat straight section is connected with the plate surface of the upper plate, and the upper broken line section is bent from the end part of the third flat straight section to the direction close to the first flat straight section; the third straight section is closer to the protruding end of the upper plate than the upper fold line section. Through above-mentioned structure, set up broken line section, be favorable to reducing the weight of web, and it is less to the influence of web intensity.
As an alternative of the present invention, the web includes an upper plate body and a lower plate body; the upper end of the upper plate body is connected with the upper plate, and the lower end of the upper plate body is connected with the upper end of the lower plate body. When a larger shear force conversion component is required to be used, the structure is convenient to transport, install and use. Specifically, the upper plate body and the lower plate body are separated during transportation. When the plate is used and installed, the upper plate body and the lower plate body are connected together in a fixedly connecting mode such as welding or screwing.
As an optional scheme of the invention, the web further comprises two splicing plates, the two splicing plates are arranged on two sides of the web in the thickness direction, and each splicing plate is in threaded connection with the upper plate body and the lower plate body; two splicing plates oppositely arranged on two adjacent webs are fixedly connected through a splicing piece. Through foretell structure, adopt the spiro union mode, the installation and the dismantlement of the web of being convenient for. The splice plate is arranged, so that the rigidity of the web plate is increased, and the stability of the structure is improved, so that the material performance is fully exerted.
A shear force conversion method for transversely moving a continuous beam of a high-speed railway comprises the following steps:
the shear force conversion component for transversely moving the continuous beam is arranged between two supports of the continuous beam along the transverse bridge direction, wherein at least one support is a longitudinal movable support or a fixed support, the protruding end of the upper plate is in contact with the upper plate of one support, and the abutting component abuts against the supporting cushion of the other support through a driving device;
the direction of the protruding end is consistent with the deflection direction of the abutment, namely the action effect of the shear conversion component on the beam body is the tendency of further deformation of the beam body. The protruding end can be contacted with an upper seat plate of a longitudinal movable support, a multidirectional movable support, a transverse movable support or a fixed support;
the driving device outputs thrust, so that the continuous beam and the upper seat plate of the support generate a moving trend relative to the lower seat plate of the support together, and the extrusion between the upper seat plate and the lower seat plate is gradually reduced; on the thrust direct action of drive arrangement output was to the shear force conversion component web, in the welding seam between rethread web and the upper plate transmitted the upper plate gradually, on the bedplate was used to the support through the bulge end of upper plate at last, like this, the shear force was very little in the web near the bulge end, and the web height can be very low to adapt to the narrow and small space in bridge bottom.
After the extrusion force between the upper and lower seat plates of the support disappears, the continuous beam body is jacked to separate the upper and lower seat plates of the support;
the driving device is gradually unloaded, the continuous beam body transversely deforms until the shear force conversion member is separated from the support, the beam body is in a free state, and at the moment, the shear force in the support anchoring bolt is zero;
and then, disassembling and replacing the upper base plate or the lower base plate of the support to perform subsequent beam body transverse moving operation.
By the shear force conversion method, shear force conversion in the process of transversely moving the continuous beam can be realized, high cost for arranging the reaction frame is saved, vibration generated in the process of separating the upper base plate and the lower base plate of the support from each other is avoided, and the safety of transversely moving the continuous beam is ensured.
As an alternative of the invention, the drive means comprises a jack.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. the shearing force between the upper seat plate and the lower seat plate of the continuous longitudinal movable support or the fixed support can be transferred to the shearing force conversion component, so that the upper seat plate and the lower seat plate of the support are allowed to be stably separated, vibration is avoided, the structure safety is ensured, and the subsequent correction operation of the continuous beam body is facilitated;
2. the upper plate is provided with an end part protruding out of the abutting component, and when the support is used, only the upper plate can be contacted with the upper seat plate of the support. The upper plate adopts a horizontal plate-shaped structural design and is connected with the long welding seam of the web plate, and the axial force in the upper plate is gradually transmitted to the web plate through the welding seam. Because the length of the second straight section is shorter, namely the welding seam between the web plate and the upper plate at the second straight section is shorter, the load transmitted at the second straight section is smaller, so that the height of the web plate at the second straight section can be smaller, the contact area between the upper plate and the upper seat plate of the support is ensured, and the limitation of a narrow space below the bridge to the operation can be adapted;
3. the upper profile line and the lower profile line of the web plate are structurally arranged, so that the web plate not only can play a role in supporting the upper plate, but also has higher strength, and the weight of the web plate can be reduced as much as possible;
4. for a larger structure, a structure that the upper plate body, the lower plate body and the splicing plates are detachably matched is adopted, so that the shear force conversion component is convenient to install, disassemble and transport, and the splicing plates can be used for reinforcing the web plate from the middle part.
5. The device can use the supporting cushion stone as an acting point, and does not need to be provided with a reaction frame; the device utilizes the beam bottom support upper plate as an acting point, does not need to arrange additional force transmission equipment on the beam body, and has larger transferable load.
Drawings
Fig. 1 is a schematic view of a shear conversion member provided in embodiment 1 of the present invention in use.
Fig. 2 is a schematic structural view of a shear conversion member provided in embodiment 1 of the present invention.
Fig. 3 is a schematic structural view of a web provided in embodiment 1 of the present invention.
Fig. 4 is a schematic view of a section a-a in fig. 2.
Fig. 5 is a schematic view of section B-B in fig. 2.
Fig. 6 is a schematic view of section C-C in fig. 2.
Fig. 7 is a partially enlarged view of a V portion in fig. 2.
Fig. 8 is a schematic structural view of a shear conversion member provided in embodiment 2 of the present invention.
Fig. 9 is a schematic view of the structure along the direction D-D in fig. 8.
Icon: 10-upper plate; 11-a protruding end; 20-a web; 20 a-a first straight section; 20 b-lower broken line segment; 20 c-a second straight section; 20 d-upper broken line segment; 20 e-a third straight section; 20 f-a first side profile; 20 g-second side profile; 21-a first upper plate body; 22-a second upper plate body; 23-a first lower plate body; 24-a second lower plate body; 30-a bottom plate; 40-web connection configuration; 41-splicing a plate I; 42-splicing plate II; 43-a splice; 44-bolt; 101-a traverse jack; 102-a continuous beam body; 1031-supporting cushion stone one; 1032-supporting a second cushion stone; 104-abutment; 105-a pedestal upper seat plate; 106-support lower seat plate.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1-9, the shear force conversion member for a transverse moving beam of a continuous beam of a high-speed railway provided by the invention comprises an upper plate 10, a web plate 20 and a bottom plate 30. The upper plate 10 is welded to the web 20, and the web 20 is welded to the bottom plate 30.
Referring to fig. 7, one end of the upper plate 10 extends out of the end of the web 20 to form a protruding end 11.
Referring to fig. 1, in practical application, the protruding end 11 abuts against the upper seat plate 105 of the support outside the lateral displacement direction of the abutment. When the device is installed and used, the direction of the protruding end 11 is consistent with the transverse displacement direction of the abutment, and the support which is tightly pushed can be a multidirectional movable support, a longitudinal movable support, a transverse movable support and a fixed support. The web 20 is formed to be short near the projecting end 11 and gradually become higher toward the other end of the web 20 so as to avoid the second support mat 1032. The other end of the web 20 acts on the supporting pad stone 1031 by means of the transverse jack 101. The components of the present invention are placed stably atop abutments 104 by way of bottom plate 30.
When a jacking force is applied to the web 20 by the traverse jack 101, the web 20 transmits the jacking force into the upper plate 10 through a weld; the upper plate 10 abuts against the support upper seat plate 105, and the thrust force applied by the lateral jack 101 is applied to the support upper seat plate 105.
It can be understood that (1) when the support against which the protruding end 11 abuts is a longitudinally movable support or a fixed support: when the direction of the jacking force exerted by the transverse jack 101 is consistent with the direction of the acting force acting on the continuous beam body 102 due to the displacement of the abutment 104 and the acting force is equal, no extrusion exists between the upper seat plate 105 and the lower seat plate 106 of the longitudinal movable support or the fixed support, and the shearing force in the support is converted to the component of the invention. The continuous beam body 102 is lifted vertically until the longitudinal movable support or fixed support upper seat plate 105 is separated from the support lower seat plate 106, then the transverse lifting jack 101 is slowly unloaded, and the continuous beam body 102 is transversely and stably deformed until the protruding end 11 is separated from the support upper seat plate 105. In this way, the upper seat plate 105 and the lower seat plate 106 of the longitudinal movable support or the fixed support are both in a non-shearing state, and can be simply disassembled and loaded, so as to perform subsequent transverse beam moving operation.
(2) The support tightly propped by the convex end 11 is a transverse movable support or a multidirectional movable support, the principle is similar to that in the step (1), and the difference is that the force of the convex end 11 acting on the support upper seat plate 105 is transferred to the longitudinal movable support or the fixed support upper seat plate on the other side through a beam body.
The difference of the transverse rigidity of different continuous beams is large, or the deformation of the abutment 104 is different, so that the shearing force required to be converted is different. When the size of the component is designed to be large to meet the stress requirement, the component of the invention can be decomposed into an upper part and a lower part by referring to fig. 8 and 9. The upper part of the component comprises an upper plate 10 and a first upper plate body 21 and a second upper plate body 22 which are welded with the upper plate; the lower part of the component comprises a bottom plate 30 and a first lower plate body 23 and a second lower plate body 24 which are welded with the bottom plate. The upper and lower component parts are connected by a web connection 40. The web connecting structure 40 includes a first splice plate 41, a second splice plate 42, a splice 43, and a bolt 44 (with a nut). Bolt holes corresponding to the web connection structure 40 are provided in each of the first upper plate 21, the second upper plate 22, the first lower plate 23, and the second lower plate 24. In a preferred embodiment of the present invention, the splice 43 is designed as an i-shape to stiffen the web 20.
The shear conversion component for the transverse moving of the continuous beam has the characteristics of innovative structure, definite force transmission, safety, reliability, feasible construction, simple manufacture and small size. The invention is used for correcting the bridge position of a station bridge of a certain operation high-speed railway, saves the high cost of arranging a reaction frame, realizes the shear force conversion in the transverse beam moving process of the continuous beam of the high-speed railway, converts the separation process of the upper base plate and the lower base plate of the longitudinal movable support or the fixed support into a static controllable process, and ensures the safety of the transverse beam moving operation of the continuous beam.
The technical solution of the present invention will be described in more detail by examples.
Example 1
Referring to fig. 1 to 7, an embodiment of the invention provides a shear force conversion member for a transverse moving beam of a continuous beam of a high-speed railway, which includes an upper plate 10, an abutting member and a bottom plate 30. The bottom plate 30 is intended to be placed on the bridge abutment 104. The upper portion of the contact member is welded to the plate surface of the upper plate 10, and the lower portion of the contact member is welded to the plate surface of the bottom plate 30.
One side of the upper plate 10 protrudes from the edge of the abutment member so that when the shear conversion member is operated, the upper plate 10 protrudes from one end of the abutment member, i.e. the protruding end 11 of the upper plate 10 can contact the seat upper plate 105, and the abutment member is prevented from contacting the seat.
The abutment member comprises two spaced apart webs 20. Each web 20 is arranged perpendicular to the upper plate 10. The side of the web 20 is connected to the plate surface of the upper plate 10.
The lower profile of the web 20 includes a first straight section 20a, a lower broken line section 20b and a second straight section 20c connected in sequence. The first straight section 20a is parallel to the plate surface of the upper plate 10, the second straight section 20c is parallel to the plate surface of the upper plate 10, and the first straight section 20a and the second straight section 20c are connected through a lower broken line section 20 b. The angle between the lower broken line segment 20b and the first straight segment 20a is an obtuse angle, and the angle between the lower broken line segment 20b and the second straight segment 20c is also an obtuse angle. The distance between the first flat section 20a and the upper plate 10 is greater than the distance between the second flat section 20c and the upper plate 10, so that the height of the web 20 at the second flat section 20c is smaller than the height of the web 20 at the first flat section 20 a. The second flat section 20c is closer to the protruding end 11 of the upper plate 10 than the first flat section 20 a.
The distance between the second straight section 20c and the upper plate 10 is set such that: the height of the web 20 at the second straight section 20c is made low, thereby allowing the end of the web 20 to extend between the continuous beam 102 and the supporting pad to support the upper plate 10.
The profile on the plate surface of the web 20 includes an upper broken line segment 20d and a third straight segment 20e which are connected in sequence. The third straight section 20e is welded to the upper plate 10, and the third straight section 20e is closer to the protruding end 11 of the upper plate 10 than the upper fold line section 20 d. The upper fold line segment 20d is bent from the end of the third straight segment 20e toward the bottom plate 30.
One end of the upper profile is connected to one end of the lower profile by a first side profile 20f, and the other end of the upper profile is connected to the other end of the lower profile by a second side profile 20 g. The first side profile 20f and the second side profile 20g are perpendicular to the upper plate 10.
The first flat section 20a of the lower profile of the web 20 is welded to the base plate 30.
The working principle of the shear conversion component provided by the embodiment is as follows:
when the shear force conversion component is used, the shear force conversion component is placed between two supports which are arranged below the continuous beam along the transverse direction, and at least one of the two supports is a longitudinal movable support or a fixed support. And the projecting end 11 of the upper plate 10 is abutted on the upper seat plate 105 of one of the supports, and a jack is arranged between the abutting member and the supporting cushion of the other support. The jack is extended, and the output force of the jack is acted on the upper seat plate 105 of the support through the shear force conversion member, so that the extrusion force between the upper seat plate and the lower seat plate of the support of the longitudinal movable support or the fixed support is gradually reduced to 0. At this time, the shearing force between the upper and lower seat plates of the longitudinally movable support or the fixed support is transferred to the shear force transfer member. And then the bridge body is jacked up in the vertical direction, and because the transverse extrusion force is not formed between the upper base plate and the lower base plate of the support of the longitudinal movable support or the fixed support, when the upper base plate and the lower base plate of the support of the longitudinal movable support or the fixed support are separated, the violent internal force change is not formed any more, and the structural vibration is not generated. And after the upper seat plate and the lower seat plate of the longitudinal movable support or the fixed support are separated, the next beam moving operation can be carried out.
The shear force conversion component provided by the embodiment has the beneficial effects that:
1. the shearing force between the upper seat plate and the lower seat plate of the longitudinal movable support or the fixed support can be transferred to the shearing force conversion component, so that the upper seat plate and the lower seat plate of the support are allowed to be stably separated, vibration is avoided, and the subsequent correction operation of the continuous beam body 102 is facilitated;
2. the upper plate 10 projects beyond the end of the abutment member and therefore, in use, only the upper plate 10 will be in contact with the carrier upper seat plate 105. The design of a plate-shaped structure is adopted, the contact area between the upper plate 10 and the upper seat plate 105 of the support is ensured through the plate width, and the limitation of a narrow space below a bridge to the operation is adapted through the smaller plate height;
3. the upper and lower profiles of the web 20 are configured to support the upper plate 10, to provide the web 20 with high strength, and to reduce the weight of the web 20 as much as possible.
Example 2
Referring to fig. 8 and 9, a shear conversion member according to an embodiment of the present invention is different from the shear conversion member of embodiment 1 in that: in this embodiment, each web 20 includes an upper plate body, a lower plate body, and a web connecting structure 40. In particular, one of the webs 20 comprises a first upper plate body 21 and a first lower plate body 23. The further web 20 comprises a second upper plate body 22 and a second lower plate body 24.
The upper ends of the first upper plate body 21 and the second upper plate body 22 are connected to the upper plate 10, and the lower ends of the first lower plate body 23 and the second lower plate body 24 are connected to the bottom plate 30. The lower end of the first upper plate 21 is connected to the upper end of the first lower plate 23, and the lower end of the second upper plate 22 is connected to the upper end of the second lower plate 24.
In particular, the first upper plate 21 is connected to the first lower plate 23 in such a way that: a web connecting structure 40 is provided in the middle of the web 20, and the web connecting structure 40 includes a splice plate, a splice 43, and a bolt 44. The splice plate covers the seam of the first upper plate 21 and the first lower plate 23. The number of the splicing plates is two, and the splicing plates are respectively a first splicing plate 41 and a second splicing plate 42. The first splicing plate 41 is arranged on one side of the web plate 20 in the thickness direction, and the second splicing plate 42 is arranged on the other side of the web plate 20 in the thickness direction. A plurality of bolts 44 sequentially pass through the first splicing plate 41, the first upper plate body 21 and the second splicing plate 42, so that the splicing plates are connected with the first upper plate body 21. And a plurality of bolts 44 are arranged to sequentially penetrate through the first splicing plate 41, the first lower plate body 23 and the second splicing plate 42, so that the splicing plates are connected with the first lower plate body 23.
The second upper plate 22 and the second lower plate 24 are connected in the same manner as described above, and will not be described herein.
Two splicing plates oppositely arranged on the two web plates 20 are fixedly connected through a splicing piece 43. Specifically, in this embodiment, the splicing member 43 is an i-steel. The splice 43 is welded to the splice plate.
On the basis of the embodiment 1, the embodiment of the invention also has the following beneficial effects:
for a larger structure, a structure that the upper plate body, the lower plate body and the splicing plates are detachably matched is adopted, so that the shear force conversion component is convenient to mount, dismount and transport, and the splicing plates can be used for reinforcing the web plate 20 from the middle part.
Example 3
Based on the shear conversion member provided in embodiment 1 or embodiment 2, the present embodiment provides a shear conversion method, which includes the steps of:
s1, placing a shear conversion component for transversely moving a continuous beam between two supports of the continuous beam along a transverse bridge direction, wherein one support is a longitudinal movable support or a fixed support, and the other support can be any one of the longitudinal movable support, a multidirectional movable support, the fixed support or the transverse movable support;
s2, a protruding end 11 of the upper plate 10 is in contact with an upper seat plate 105 of one of the supports, the abutting component abuts against a supporting cushion stone of the other support through a driving device, and the protruding end faces to the direction consistent with the displacement direction of the abutment;
specifically, in step S2, the driving device has one end abutting the support pad and the other end abutting the abutment member. In this embodiment, the driving device is a traverse jack 101.
S3, outputting thrust by a driving device to enable the extrusion between the upper seat plate and the lower seat plate of the longitudinal movable support or the fixed support to be reduced;
s4, after the extrusion force between the upper and lower support seat plates of the longitudinal movable support or the fixed support disappears, jacking the continuous beam body 102 to separate the upper and lower support seat plates of the longitudinal movable support or the fixed support;
s5, gradually unloading the driving device, wherein the continuous beam body 102 deforms along with the unloading of the driving device until the protruding end is separated from the support.
After the steps of the shear force conversion method are completed, the next step of beam moving operation can be carried out.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The shear force conversion component for the transverse moving beam of the continuous beam of the high-speed railway is characterized by comprising an upper plate (10) and an abutting component, wherein the plate surface of the upper plate (10) is fixedly connected with the abutting component, and the upper plate (10) comprises a protruding end (11) protruding out of the abutting component.
2. The shear conversion component for the transverse displacement beam of the continuous beam of the high-speed railway according to claim 1, wherein the abutting component comprises at least two webs (20), the at least two webs (20) are arranged at intervals, and the side surfaces of the webs (20) are fixedly connected with the plate surface of the upper plate (10).
3. The shear conversion member for the transverse transfer beam of the continuous beam of the high-speed railway according to claim 2, wherein the lower profile of the web plate (20) comprises a first straight section (20a), a lower broken line section (20b) and a second straight section (20c) which are connected in sequence;
the first flat section (20a) is parallel to the plate surface of the upper plate (10), and the second flat section (20c) is parallel to the plate surface of the upper plate (10);
the distance between the first flat section (20a) and the upper plate (10) is greater than the distance between the second flat section (20c) and the upper plate (10), the second flat section (20c) being closer to the protruding end (11) of the upper plate (10) than the first flat section (20 a).
4. The shear transfer member for a transverse displacement beam of a continuous beam of a high speed railway according to claim 3, wherein the height of the web (20) is gradually increased at the lower broken line section (20 b).
5. The shear conversion structure for the transverse displacement beam of the continuous beam of the high-speed railway according to claim 3, further comprising a bottom plate (30), wherein the first straight section (20a) of the web plate (20) is fixedly connected with the bottom plate (30).
6. The shear conversion member for a transverse displacement beam of a continuous beam of a high-speed railway according to claim 3, wherein the upper profile of the web plate (20) comprises an upper broken line segment (20d) and a third straight segment (20e) which are connected in sequence;
the third flat straight section (20e) is connected with the plate surface of the upper plate (10), and the upper broken line section (20d) is bent from the end part of the third flat straight section (20e) to the direction close to the first flat straight section (20 a);
the third straight section (20e) is closer to the protruding end (11) of the upper plate (10) than the upper fold line section (20 d).
7. The shear transfer member for a transverse displacement beam of a continuous beam of a high speed railway according to claim 2, wherein the web (20) comprises an upper plate body and a lower plate body;
the upper end of the upper plate body is connected with the upper plate (10), and the lower end of the upper plate body is connected with the upper end of the lower plate body.
8. The shear conversion component for the transverse moving beam of the continuous beam of the high-speed railway according to claim 7, wherein the web plate (20) further comprises two splicing plates, the two splicing plates are respectively arranged on two sides of the web plate (20) in the thickness direction, and each splicing plate is connected with the upper plate body and the lower plate body through bolts;
two splicing plates oppositely arranged on two adjacent webs (20) are fixedly connected through a splicing piece (43).
9. A shear force conversion method for transversely moving a continuous beam of a high-speed railway is characterized by comprising the following steps of:
placing the continuous beam between two supports of the continuous beam along the transverse bridge direction by using a shear conversion component for transversely moving the continuous beam, wherein at least one support is a longitudinal movable support or a fixed support;
the protruding end (11) of the upper plate (10) is abutted with one support upper seat plate (105), the abutting component is abutted with the other support lower seat plate (106) through a driving device, and the direction of the protruding end (11) is consistent with the displacement direction of the abutment;
the driving device outputs thrust to ensure that the extrusion between the upper seat plate and the lower seat plate of the longitudinal movable support or the fixed support is reduced;
after the extrusion force between the upper and lower seat plates of the longitudinal movable support or the fixed support disappears, the continuous beam body (102) is jacked to separate the upper and lower seat plates of the support;
the driving device is gradually unloaded, and the continuous beam body deforms along with the unloading of the driving device until the protruding end (11) is separated from the support.
10. The shear conversion method for the transverse displacement beam of the continuous beam of the high-speed railway according to claim 9, wherein the driving device comprises a jack.
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Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07180113A (en) * | 1993-12-24 | 1995-07-18 | Ohbayashi Corp | Shearing deformation correction device of seismic isolation bearing |
| JP2003136140A (en) * | 2001-10-26 | 2003-05-14 | Nippon Kokan Light Steel Kk | Device for correcting flange buckling of channel shape cross sectional steel stock |
| FR2882070A1 (en) * | 2005-02-16 | 2006-08-18 | Systra Sa | Span for railway track, has U shape structure with two lateral vertical walls carrying lateral rails, where structure is dimensioned such that each wall carrying rail supports transversal and vertical forces generated by rolling stock |
| JP2006348595A (en) * | 2005-06-16 | 2006-12-28 | Wakachiku Construction Co Ltd | Pier undersurface concrete automatic chipping apparatus |
| KR20070001410A (en) * | 2005-06-29 | 2007-01-04 | (주)한맥기술 | Mounting structure of steel cross-beam in multi-girder concrete bridge and its construction method |
| KR20070115837A (en) * | 2007-11-15 | 2007-12-06 | 삼화주철공업 주식회사 | Maintenancerepair support |
| CN102953348A (en) * | 2012-12-12 | 2013-03-06 | 重庆桥都桥梁技术有限公司 | Correcting and resetting method for pier stud of bridge |
| CN103821092A (en) * | 2014-02-27 | 2014-05-28 | 武汉中交试验检测加固工程有限责任公司 | Deviation correcting and resetting method for transverse deviation of beam bodies of beam bridge |
| CN103821090A (en) * | 2014-02-27 | 2014-05-28 | 武汉中交试验检测加固工程有限责任公司 | Deviation correcting and resetting method for inclined bridge pier |
| CN104612064A (en) * | 2015-02-09 | 2015-05-13 | 中核华泰建设有限公司 | Bridge and pier column deviation rectifying device |
| CN104947606A (en) * | 2015-05-26 | 2015-09-30 | 上海同罡建筑工程有限公司 | Correcting method for bridge superstructure |
| JP2016014290A (en) * | 2014-07-03 | 2016-01-28 | オリエンタル白石株式会社 | Temporary shutoff method of existing underwater structure |
| CN106381817A (en) * | 2016-10-28 | 2017-02-08 | 柳州欧维姆工程有限公司 | Self-balancing type horizontal correcting device for correcting and resetting old bridge and construction method thereof |
| CN206173809U (en) * | 2016-09-18 | 2017-05-17 | 中国铁建大桥工程局集团有限公司 | A reaction frame device of rectifying for bridge incremental launching construction |
| KR101767845B1 (en) * | 2016-10-24 | 2017-08-14 | 심규숙 | Bridge bearing replacement method for preventing drop of upper structure |
| CN206986729U (en) * | 2017-06-09 | 2018-02-09 | 中铁建大桥工程局集团第五工程有限公司 | A kind of spacing deviation-rectifying bracket for the control of box beam pushing tow |
| CN109356042A (en) * | 2018-10-15 | 2019-02-19 | 浙江交工集团股份有限公司 | A kind of replacing and rectificating method after pier slope |
| CN109629461A (en) * | 2019-01-14 | 2019-04-16 | 中交公局第六工程有限公司 | A method of it does not break off a friendship and carries out cast-in-situ box girder reset and bearing replacement |
-
2020
- 2020-08-19 CN CN202010838262.0A patent/CN111926685B/en active Active
Patent Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07180113A (en) * | 1993-12-24 | 1995-07-18 | Ohbayashi Corp | Shearing deformation correction device of seismic isolation bearing |
| JP2003136140A (en) * | 2001-10-26 | 2003-05-14 | Nippon Kokan Light Steel Kk | Device for correcting flange buckling of channel shape cross sectional steel stock |
| FR2882070A1 (en) * | 2005-02-16 | 2006-08-18 | Systra Sa | Span for railway track, has U shape structure with two lateral vertical walls carrying lateral rails, where structure is dimensioned such that each wall carrying rail supports transversal and vertical forces generated by rolling stock |
| JP2006348595A (en) * | 2005-06-16 | 2006-12-28 | Wakachiku Construction Co Ltd | Pier undersurface concrete automatic chipping apparatus |
| KR20070001410A (en) * | 2005-06-29 | 2007-01-04 | (주)한맥기술 | Mounting structure of steel cross-beam in multi-girder concrete bridge and its construction method |
| KR20070115837A (en) * | 2007-11-15 | 2007-12-06 | 삼화주철공업 주식회사 | Maintenancerepair support |
| CN102953348A (en) * | 2012-12-12 | 2013-03-06 | 重庆桥都桥梁技术有限公司 | Correcting and resetting method for pier stud of bridge |
| CN103821090A (en) * | 2014-02-27 | 2014-05-28 | 武汉中交试验检测加固工程有限责任公司 | Deviation correcting and resetting method for inclined bridge pier |
| CN103821092A (en) * | 2014-02-27 | 2014-05-28 | 武汉中交试验检测加固工程有限责任公司 | Deviation correcting and resetting method for transverse deviation of beam bodies of beam bridge |
| JP2016014290A (en) * | 2014-07-03 | 2016-01-28 | オリエンタル白石株式会社 | Temporary shutoff method of existing underwater structure |
| CN104612064A (en) * | 2015-02-09 | 2015-05-13 | 中核华泰建设有限公司 | Bridge and pier column deviation rectifying device |
| CN104947606A (en) * | 2015-05-26 | 2015-09-30 | 上海同罡建筑工程有限公司 | Correcting method for bridge superstructure |
| CN206173809U (en) * | 2016-09-18 | 2017-05-17 | 中国铁建大桥工程局集团有限公司 | A reaction frame device of rectifying for bridge incremental launching construction |
| KR101767845B1 (en) * | 2016-10-24 | 2017-08-14 | 심규숙 | Bridge bearing replacement method for preventing drop of upper structure |
| CN106381817A (en) * | 2016-10-28 | 2017-02-08 | 柳州欧维姆工程有限公司 | Self-balancing type horizontal correcting device for correcting and resetting old bridge and construction method thereof |
| CN206986729U (en) * | 2017-06-09 | 2018-02-09 | 中铁建大桥工程局集团第五工程有限公司 | A kind of spacing deviation-rectifying bracket for the control of box beam pushing tow |
| CN109356042A (en) * | 2018-10-15 | 2019-02-19 | 浙江交工集团股份有限公司 | A kind of replacing and rectificating method after pier slope |
| CN109629461A (en) * | 2019-01-14 | 2019-04-16 | 中交公局第六工程有限公司 | A method of it does not break off a friendship and carries out cast-in-situ box girder reset and bearing replacement |
Non-Patent Citations (3)
| Title |
|---|
| 侯勇: "简支双线钢桁梁桥设计与施工技术研究", 《铁道工程学报》 * |
| 孙照玉等: "汽车荷载作用下连续箱梁桥的剪力滞效应分析", 《兰州工业学院学报》 * |
| 闵玉等: "某高架桥墩纠偏及支座处治施工技术", 《江西建材》 * |
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