Supporting and reinforcing structure of multi-span continuous steel structure bridge

Abstract

The utility model relates to the technical field of steel structure bridges, in particular to a supporting and reinforcing structure of a multi-span continuous steel structure bridge, which comprises a base and at least two supports arranged on the base side by side. A reinforcing structure is arranged on the peripheral sides of the two supports, and the reinforcing structure comprises two oppositely-arranged first flitch plates and two oppositely-arranged second flitch plates; supporting rib plates extend out of the adjacent opposite angles of the first flitch plate and the second flitch plate, a first clamping groove part and a second clamping groove part which are matched with each other are arranged at the crossed and overlapped positions of the two supporting rib plates, and the first clamping groove part is inserted into the second clamping groove part in the vertical direction. And the two first flitch plates and the two second flitch plates cover the outer side walls of the two supports. A single-column double-support type structure is adopted, the supporting area is increased, the first flitch plates and the second flitch plates are additionally arranged on the outer side walls of the supports for reinforcement, lateral displacement or overturning caused by uneven loads or wind power can be resisted, and the stability of a bridge is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel structure bridges, in particular to a support and reinforcement structure for a multi-span continuous rigid frame bridge. Background Art

[0002] A multi-span continuous rigid frame bridge is a bridge structure formed by connecting the ends of multiple simply supported beams to form a continuous beam system. However, most of the connections at the ends of simply supported beams adopt a single support method, which may cause the bridge to have a risk of unilateral overturning when the bridge deck is overloaded, resulting in weak stability of the bridge. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide a support and reinforcement structure for a multi-span continuous rigid frame bridge, which effectively solves the problems in the background art.

[0004] In order to achieve the above object, the technical solution adopted by the utility model is: a support and reinforcement structure for a multi-span continuous rigid frame bridge, including: a base and at least two supports arranged side by side on the base;

[0005] A reinforcement structure is provided on the outer peripheral side of the two supports, and the reinforcement structure includes two first attaching plates arranged opposite to each other and two second attaching plates arranged opposite to each other;

[0006] Wherein, the first attaching plate and the second attaching plate both extend support rib plates at adjacent diagonals, and a first card slot portion and a second card slot portion that cooperate with each other are provided at the overlapping position of the two support rib plates. The first card slot portion is inserted vertically into the second card slot portion so that the two first attaching plates and the two second attaching plates cover the outer side walls of the two supports.

[0007] Further, the support includes two channel steels with opposite openings and an I-beam arranged between the two channel steels;

[0008] The two channel steels and the I-beam are both arranged vertically and inserted into the corresponding grooves of the base.

[0009] Further, the width of the second attaching plate is equal to the distance between the two channel steels.

[0010] Further, a positioning boss is extended towards the I-beam on the side of the second attaching plate facing the support. Plugging grooves for inserting the side edges of the channel steels are provided on both sides of the positioning boss.

[0011] Further, a fixing seat is arranged at one end of the I-beam in contact with the base. The fixing seat includes two angle steels arranged back to back. The middle position of the I-beam is inserted between the two angle steels.

[0012] Further, a bottom edge of the first attaching plate between the two supporting rib plates extends towards a side away from the support towards the outside.

[0013] Further, a plurality of reinforcing rib plates are provided on a side surface of the first attaching plate away from the support, and the plurality of reinforcing rib plates are uniformly arranged along a direction in which the two supports are arranged side by side.

[0014] Further, a bottom edge of the second attaching plate extends towards the outside.

[0015] Further, at least one reinforcing rib plate is provided on a side surface of the second attaching plate away from the support.

[0016] Further, a top surface of the second attaching plate is flush with a top surface of the support.

[0017] The beneficial effects of the present utility model are as follows: The single-column double-support structure is adopted in the present utility model, so as to increase the support area, and the first attaching plate and the second attaching plate are added to the outer side wall of the support for reinforcement, thereby increasing the lateral stability of the bridge, helping to resist lateral displacement or overturning caused by uneven loads or wind forces, and further improving the stability of the bridge. Description of the Drawings

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without creative efforts.

[0019] Figure 1 It is a schematic structural diagram of a support reinforcement structure in an embodiment of the present utility model;

[0020] Figure 2 It is a schematic diagram of the insertion connection of the first attaching plate and the second attaching plate in an embodiment of the present utility model;

[0021] Figure 3 It is a top view of a support reinforcement structure in an embodiment of the present utility model;

[0022] Figure 4 is Figure 3 A-A sectional view of.

[0023] Reference numerals: 1, base; 2, support; 21, channel steel; 22, I-beam; 3, first attaching plate; 4, second attaching plate; 41, positioning boss; 41a, insertion slot; 5, supporting rib plate; 5a, first card slot part; 5b, second card slot part; 6, angle steel; 7, bottom edge; 8, reinforcing rib plate. Detailed implementation manners

[0024] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0025] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation manner.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present utility model belongs. The terms used in the specification of the present utility model are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0027] As Figures 1 to 4 shown in the support reinforcement structure of a multi-span continuous steel structure bridge, it includes: a base 1 and at least two supports 2 arranged side by side on the base 1; a reinforcement structure is provided on the outer peripheral side of the two supports 2, and the reinforcement structure includes two first attaching plates 3 arranged oppositely and two second attaching plates 4 arranged oppositely;

[0028] Wherein, the first attaching plate 3 and the second attaching plate 4 both extend out support rib plates 5 at adjacent diagonals, and mutually matching first card slots 5a and second card slots 5b are provided at the overlapping position of the two support rib plates 5. The first card slot 5a is inserted vertically into the second card slot 5b so that the two first attaching plates 3 and the two second attaching plates 4 cover the outer side walls of the two supports 2.

[0029] In the present utility model, a single-column double-support 2 structure is adopted to increase the support area, and the outer side walls of the supports 2 are reinforced by adding the first attaching plates 3 and the second attaching plates 4, which increases the lateral stability of the bridge, helps to resist lateral displacement or overturning caused by uneven loads or wind forces, and further improves the stability of the bridge.

[0030] In the present utility model, the support 2 includes two channel steels 21 with opposite openings and an I-beam 22 arranged between the two channel steels 21; both the two channel steels 21 and the I-beam 22 are vertically arranged and inserted into the corresponding grooves of the base 1. The vertical arrangement of the channel steels 21 and the I-beam 22 provides better vertical load-bearing capacity, can reliably support the load of the upper structure, and is fixed through the grooves on the base 1, enhancing the overall stability.

[0031] As a preference of the above embodiment, the width of the second attaching plate 4 is equal to the distance between the two channel steels 21. When the width of the second attaching plate 4 matches the distance between the channel steels 21, the load can be more effectively transferred to the channel steels 21, realizing uniform stress distribution on the contact surface.

[0032] As another preferred solution, a positioning boss 41 extends towards the I-beam 22 on the side of the second attaching plate 4 facing the support 2. Plug-in grooves 41a for inserting the side edges of the channel steels 21 are provided on both side edges of the positioning boss 41, and the top surface of the second attaching plate 4 is flush with the top surface of the support 2.

[0033] By using the second attaching plate 4 to block the notches of the two channel steels 21, the sealing of the four side surfaces of the support 2 is effectively ensured. Through the arrangement of the plug-in grooves 41a on the positioning boss 41, the two channel steels 21 are quickly positioned, ensuring the position accuracy and improving the load-bearing capacity of the support 2.

[0034] As a further preferred solution, a fixing seat is arranged at one end of the I-beam 22 in contact with the base 1. The fixing seat includes two angle steels 6 arranged back to back. The middle position of the I-beam 22 is inserted between the two angle steels 6. Using the two angle steels 6 arranged back to back to form the fixing seat and inserting the I-beam 22 between the two angle steels 6 can provide stronger lateral support and increase the stability of the whole structure.

[0035] In the preferred solution of the present utility model, the bottom edge 7 extends towards the side away from the support 2 at the lower edge of the first attaching plate 3 located between the two support ribs 5, and the bottom edge 7 extends towards the outside at the lower edge of the second attaching plate 4. The bottom edge 7 can improve the local stiffness of the attaching plate, contribute to resisting the stress generated during bending, and the bottom edge 7 can be used as part of the connection part and connected to other structural members through welding or bolt connection, etc., to improve the connection strength of the whole structure.

[0036] To increase the support strength of the attaching plate, a plurality of reinforcing ribs 8 are provided on the side surface of the first attaching plate 3 away from the support 2. The plurality of reinforcing ribs 8 are evenly distributed along the direction of the two supports 2 arranged side by side, and at least one reinforcing rib 8 is provided on the side surface of the second attaching plate 4 away from the support 2. The ribs can be adjusted according to different design requirements and load conditions to cooperate with other structural members to improve the stability of the whole structure.

[0037] Those skilled in the art should understand that the present utility model is not limited by the above-mentioned embodiments. What is described in the above-mentioned embodiments and the specification only illustrates the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A support reinforcement structure for a multi-span continuous steel-concrete composite bridge, characterized in that Including: A base (1) and at least two supports (2) arranged side by side on the base (1). A reinforcing structure is provided on the outer peripheral side of the two supports (2). The reinforcing structure includes two relatively arranged first attaching plates (3) and two relatively arranged second attaching plates (4); Wherein, the first attaching plate (3) and the second attaching plate (4) both extend out support rib plates (5) at adjacent diagonals, and a first card slot portion (5a) and a second card slot portion (5b) that cooperate with each other are provided at the cross-overlapping position of the two support rib plates (5). The first card slot portion (5a) is inserted vertically into the second card slot portion (5b) so that the two first attaching plates (3) and the two second attaching plates (4) cover the outer side walls of the two supports (2).

2. The supporting and reinforcing structure of the multi-span continuous steel structure bridge according to claim 1, characterized in that, The support (2) includes two channel steels (21) with opposite openings and an I-beam (22) arranged between the two channel steels (21); The two channel steels (21) and the I-beam (22) are both arranged vertically and inserted into the corresponding grooves of the base (1).

3. The support reinforcement structure of the multi-span continuous steel structure bridge according to claim 2, characterized in that, The width of the second attaching plate (4) is equal to the distance between the two channel steels (21).

4. The support reinforcement structure of the multi-span continuous steel structure bridge according to claim 3, characterized in that, A positioning boss (41) extends towards the I-beam (22) on one side of the second attaching plate (4) facing the support (2). Plug-in slots (41a) for inserting the side edges of the channel steels (21) are provided on both sides of the positioning boss (41).

5. The support reinforcement structure of the multi-span continuous steel structure bridge according to claim 2, characterized in that, A fixing seat is provided at one end of the I-beam (22) in contact with the base (1). The fixing seat includes two angle steels (6) arranged back to back. The middle position of the I-beam (22) is inserted between the two angle steels (6).

6. The support reinforcement structure of the multi-span continuous steel structure bridge according to claim 1, characterized in that The lower edge of the first attaching plate (3) between the two support rib plates (5) extends out a bottom edge (7) towards the side away from the support (2).

7. The support reinforcement structure of the multi-span continuous steel frame bridge according to claim 1, characterized in that, A plurality of reinforcing rib plates (8) are provided on one side of the first attaching plate (3) away from the support (2). The plurality of reinforcing rib plates (8) are evenly distributed along the direction in which the two supports (2) are arranged side by side.

8. The support reinforcement structure of the multi-span continuous steel truss bridge according to claim 1, characterized in that The lower edge of the second attaching plate (4) extends out a bottom edge (7) towards the outside.

9. The support reinforcement structure of the multi-span continuous steel structure bridge according to claim 1, characterized in that, At least one reinforcing rib plate (8) is provided on one side of the second attaching plate (4) away from the support (2).

10. The support reinforcement structure of the multi-span continuous steel structure bridge according to claim 1, characterized in that, The top surface of the second attaching plate (4) is flush with the top surface of the support (2).

Images