Node reinforcing device for tied-arch bridge

Abstract

The utility model provides a tied-arch bridge node reinforcing device, and relates to the technical field of tied-arch bridges. The lower connecting piece is fixedly connected with the bottom of the arch rib, the bottom of the lower connecting piece is connected with the suspender, and the top of the lower connecting piece is connected with the upper connecting piece; a filler strip is installed at the interval position of the lower connecting piece and the upper connecting piece, bolts are connected to the two ends of the lower connecting piece, and the bolts are connected with the upper connecting piece and the filler strip. A stress block is connected into the upper connecting piece and fixedly connected with the top of the arch rib. Through tight connection of the bolt and the nut, the lower connecting piece, the upper connecting piece and the filler strip are firmly and stably connected together to form a stable integral structure, and the lower connecting piece transmits tensile force borne by the lower connecting piece to the position of the upper connecting piece. The stress strength borne by the connecting part of the lower connecting piece and the arch rib is greatly reduced through a force transmission mechanism, so that the stress state of the connecting part is remarkably improved, and the excellent reinforcing effect on the tied-arch bridge joint is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of tied arch bridge, especially to a tied arch bridge joint reinforcing device. BACKGROUND

[0002] As a member of the arch bridge family, the tied arch bridge has the general characteristics of arch bridges and its own unique characteristics. It is a bridge type that combines the advantages of arches and beams. It combines the two basic structural forms of arches and beams together to bear loads, fully utilizes the structural performance and combined effect of beam bending and arch compression, and uses a pull rod to bear the horizontal thrust at the arch end, so that the horizontal thrust does not occur at the arch end support. In order to make the tied arch bridge more firm and durable, the joint position usually needs to be reinforced.

[0003] At present, the design and construction of the tied arch bridge usually adopts the mode of welding connecting pieces at the bottom of the arch rib to connect and fix the suspender. The contact area between the connecting piece and the arch rib is small, which easily leads to excessive concentration of stress on the arch rib and affects the stability of the overall structure. UTILITY MODEL CONTENT

[0004] The present disclosure relates to a tied arch bridge joint reinforcing device, which solves the problem of the design and construction of the existing tied arch bridge, which usually adopts the mode of welding connecting pieces at the bottom of the arch rib to connect and fix the suspender. The contact area between the connecting piece and the arch rib is small, which easily leads to excessive concentration of stress on the arch rib and affects the stability of the overall structure.

[0005] In the first aspect of the present disclosure, a tied arch bridge joint reinforcing device is provided, which specifically comprises: a lower connecting piece, an upper connecting piece, a spacer, a bolt, and a stress block; the lower connecting piece is fixedly connected with the bottom of the arch rib, the bottom of the lower connecting piece is connected with the suspender, and the top of the lower connecting piece is connected with the upper connecting piece; the spacer is installed at the spaced part between the lower connecting piece and the upper connecting piece, the two ends of the lower connecting piece are connected with the bolt, and the bolt is connected with the upper connecting piece and the spacer; the stress block is connected with the top of the arch rib.

[0006] Further, the lower connecting piece and the upper connecting piece are slidingly connected, the top of the lower connecting piece is provided with two lower lugs, the bottom of the upper connecting piece is provided with two upper lugs, the upper lugs and the lower lugs are slidingly connected, the connecting part of the lower connecting piece and the upper connecting piece can be slidingly adjusted according to the different specifications of the arch rib, so that the lower connecting piece and the upper connecting piece can be sleeved outside the arch rib, and better adapt to the actual assembly and reinforcement requirements.

[0007] Further, the spacer is divided into different thicknesses, the top side of the spacer is in contact with the bottom side of the lower lug, and the bottom side of the spacer is in contact with the top side of the upper lug.

[0008] Further, the top of the lower lug is provided with an upper connecting hole, the bottom of the upper lug is provided with a lower connecting hole, and the inside of the spacer is provided with a middle connecting hole, the top of the middle connecting hole is in communication with the upper connecting hole, and the bottom of the middle connecting hole is in communication with the lower connecting hole.

[0009] Further, the bolt penetrates the upper connecting hole, the middle connecting hole and the lower connecting hole, the bottom end of the bolt is threadedly connected with a nut, the top of the nut is in contact with the bottom side of the upper ear plate, the lower connecting piece transmits the tension received by itself to the upper connecting piece, the stress intensity of the connecting part of the lower connecting piece and the arch rib is reduced, and the effect of reinforcing the tie-arch bridge node is achieved.

[0010] Further, the stress block is three times as long as the upper connecting piece, and the outer side of the stress block is in contact with the inner side of the upper connecting piece.

[0011] Further, the upper connecting piece is internally provided with a positioning hole, and the top of the stress block is provided with a positioning block which is inserted into the positioning hole, the stress area of the contact part of the upper connecting piece and the arch rib is increased through the stress block, the force applied by the upper connecting piece is evenly dispersed to the arch rib through the stress block, the problem of excessive local stress of the arch rib is avoided, and the effect of auxiliary reinforcing the tie-arch bridge node is achieved.

[0012] The utility model provides a kind of tie-arch bridge node reinforcing device, with following beneficial effects:

[0013] The utility model in use, in actual assembly reinforcing operation process, the sliding cooperation mechanism of ingenious design between lower connecting piece and upper connecting piece can be flexibly and accurately slidably adjusted according to the diversification characteristics of different arch rib specifications;This adjustment mode is very practical, which makes lower connecting piece and upper connecting piece can be closely and stably sleeved outside arch rib, no matter what specification arch rib is faced, perfect adaptation can be realized, so that various needs in actual assembly reinforcing work can be better met, great convenience is provided for entire assembly reinforcing process, the efficient and accurate completion of assembly reinforcing work is ensured, and the overall assembly reinforcing effect is greatly improved.

[0014] In addition, through the close connection of bolt and nut, lower connecting piece, upper connecting piece and pad strip are firmly and stably connected together to form a stable overall structure;During this connection process, the tension received by lower connecting piece is transmitted to the position of upper connecting piece, the stress intensity of the connecting part of lower connecting piece and arch rib is greatly reduced through force transmission mechanism, so that the stress state of the part is significantly improved, and then the remarkable reinforcing effect of tie-arch bridge node is realized, and the structural stability and safety of entire tie-arch bridge are effectively improved.

[0015] In addition, the positioning block and the positioning hole are used for precise plug-in cooperation, the position of the upper connecting piece can be effectively limited, the limiting mechanism is extremely crucial, unnecessary displacement of the upper connecting piece can be avoided in the stress process, and therefore the stability of the whole structure is ensured, the stress block can increase the stress area of the contact part of the upper connecting piece and the arch rib, when the upper connecting piece bears external force, the force applied by the upper connecting piece can be uniformly dispersed to each part of the arch rib through the stress block, instead of being concentrated in a local area, in this way, the problem of excessive local stress of the arch rib can be avoided, and the auxiliary reinforcing effect of the tied-arch bridge node is achieved, and the service life of the tied-arch bridge is effectively prolonged.

[0016] Other advantages, objects and features of the present application will be apparent from the following description, and will be understood by those skilled in the art. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings of the embodiments will be briefly introduced below.

[0018] The drawings in the following description only relate to some embodiments of the present application, and are not limited to the present application.

[0019] In the drawings:

[0020] Figure 1 The overall shaft side structure schematic diagram of the present application is shown;

[0021] Figure 2 The lower connecting piece shaft side structure schematic diagram of the present application is shown;

[0022] Figure 3 The upper connecting piece shaft side structure schematic diagram of the present application is shown;

[0023] Figure 4 The gasket strip shaft side structure schematic diagram of the present application is shown;

[0024] Figure 5 The stress block shaft side structure schematic diagram of the present application is shown.

[0025] LIST OF REFERENCE NUMERALS

[0026] 1, lower connecting piece; 11, lower lug plate; 111, upper connecting hole; 2, upper connecting piece; 21, upper lug plate; 211, lower connecting hole; 22, positioning hole; 3, gasket strip; 31, middle connecting hole; 4, bolt; 5, nut; 6, stress block; 61, positioning block. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme of the embodiments of the utility model will be described clearly and completely below in combination with the drawings of the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the described embodiments of the utility model, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the utility model.

[0028] Embodiment one: please refer to Figures 1 to 5

[0029] The utility model proposes a kind of tied arch bridge node reinforcing device, comprising: lower connecting piece 1, upper connecting piece 2, pad strip 3, bolt 4 and stress block 6;Lower connecting piece 1 is fixedly connected with arch rib bottom, and the bottom of lower connecting piece 1 is connected with suspender, and the top of lower connecting piece 1 is connected with upper connecting piece 2;Lower connecting piece 1 and upper connecting piece 2 spacing part are equipped with pad strip 3, and the both ends of lower connecting piece 1 are equipped with bolt 4, and bolt 4 is connected with upper connecting piece 2 and pad strip 3;Upper connecting piece 2 is connected with stress block 6 inside, and stress block 6 is fixedly connected with arch rib top;Lower connecting piece 1 and upper connecting piece 2 are slidingly connected, and the top of lower connecting piece 1 is provided with two lower lugs 11, and the bottom of upper connecting piece 2 is provided with two upper lugs 21, and upper lug 21 is slidingly connected with lower lug 11;By the sliding fit between lower connecting piece 1 and upper connecting piece 2, lower connecting piece 1 and upper connecting piece 2 connection part can be slidingly adjusted according to the different specifications of arch rib, so that lower connecting piece 1 and upper connecting piece 2 can be fitted outside arch rib, and it is better applicable to actual assembly reinforcement required.

[0030] In the embodiment of the present disclosure, pad strip 3 is divided into different thicknesses, the top side of pad strip 3 is in contact with the bottom side of lower lug 11, the bottom side of pad strip 3 is in contact with the top side of upper lug 21, the top of lower lug 11 is provided with an upper connecting hole 111, the bottom of upper lug 21 is provided with a lower connecting hole 211, the inside of pad strip 3 is provided with a middle connecting hole 31, the top of middle connecting hole 31 is in communication with upper connecting hole 111, the bottom of middle connecting hole 31 is in communication with lower connecting hole 211, bolt 4 penetrates into upper connecting hole 111, middle connecting hole 31 and lower connecting hole 211, the bottom end of bolt 4 is threadedly connected with nut 5, and the top of nut 5 is in contact with the bottom side of upper lug 21.

[0031] By the above technical scheme, lower connecting piece 1, upper connecting piece 2 and pad strip 3 are fixedly connected together by bolt 4 and nut 5 cooperation, and lower connecting piece 1 transmits the tension received by itself to upper connecting piece 2, so as to reduce the stress intensity of the connecting part of lower connecting piece 1 and arch rib, and play the effect of reinforcing tied arch bridge node.

[0032] ​In the second embodiment, the length of the stress block 6 is three times the length of the upper connecting piece 2, the outer side of the stress block 6 is in contact with the inner side of the upper connecting piece 2, the inner part of the upper connecting piece 2 is provided with a positioning hole 22, and the top of the stress block 6 is provided with a positioning block 61 which is inserted into the positioning hole 22.

[0033] By the insertion and cooperation of the positioning block 61 and the positioning hole 22, the position of the upper connecting piece 2 is limited, displacement of the upper connecting piece 2 is avoided, the stress area of the contact part between the upper connecting piece 2 and the arch rib is increased by the stress block 6, the force applied by the upper connecting piece 2 is evenly dispersed to the arch rib through the stress block 6, the problem of excessive local stress of the arch rib is avoided, and the auxiliary reinforcing effect of the tied-arch bridge node is achieved.

[0034] The working principle of the embodiment is as follows: in the actual assembly and reinforcement work, the connection part of the lower connecting piece 1 and the upper connecting piece 2 is flexibly and accurately adjusted according to the diversified characteristics of different arch rib specifications, the lower connecting piece 1 and the upper connecting piece 2 are sleeved outside the arch rib, perfect adaptation can be achieved regardless of the specification of the arch rib, various needs in the actual assembly and reinforcement work can be better met, and great convenience is provided for the entire assembly and reinforcement process; then the appropriate thickness of the spacer 3 is selected, the lower connecting piece 1, the upper connecting piece 2 and the spacer 3 are firmly and stably connected together through the close connection of the bolt 4 and the nut 5, and a stable overall structure is formed; the tensile force borne by the lower connecting piece 1 is transmitted to the position of the upper connecting piece 2, the force transmission mechanism greatly reduces the stress intensity borne by the connection part of the lower connecting piece 1 and the arch rib, the stress state of the part is significantly improved, and the remarkable reinforcing effect of the tied-arch bridge node is achieved; the stress area of the contact part between the upper connecting piece 2 and the arch rib is increased by the stress block 6, when the upper connecting piece 2 bears external force, the applied force is evenly dispersed to each part of the arch rib through the stress block 6, the problem of excessive local stress of the arch rib is avoided, and the auxiliary reinforcing effect of the tied-arch bridge node is achieved.

[0035] In this paper, the following points need to be noted:

[0036] 1. The drawings of the embodiments of the present disclosure only relate to the structures involved in the embodiments of the present disclosure, and other structures can be referred to the general design.

[0037] 2. In the case of no conflict, the embodiments of the present disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0038] The above merely describes specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical scope disclosed by the present disclosure, which should be covered within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims

1. A tied-arch bridge node reinforcement device, comprising: Lower connecting piece (1), upper connecting piece (2), gasket (3), bolt (4) and stress block (6), characterized in that, the lower connecting piece (1) is fixedly connected with the bottom of the arch rib, the bottom of the lower connecting piece (1) is connected with the suspender, the top of the lower connecting piece (1) is connected with the upper connecting piece (2); the lower connecting piece (1) is provided with the gasket (3) at the interval position between the lower connecting piece (1) and the upper connecting piece (2), the lower connecting piece (1) is connected with the bolt (4) at both ends, the bolt (4) is connected with the upper connecting piece (2) and the gasket (3); the upper connecting piece (2) is connected with the stress block (6) inside, and the stress block (6) is fixedly connected with the top of the arch rib.

2. The tied-arch bridge node reinforcing device according to claim 1, characterized in that, The lower connecting piece (1) is connected with the upper connecting piece (2) in sliding mode, the top of the lower connecting piece (1) is provided with two lower lugs (11), the bottom of the upper connecting piece (2) is provided with two upper lugs (21), and the upper lug (21) is connected with the lower lug (11) in sliding mode.

3. The tied-arch bridge node reinforcing device according to claim 2, characterized in that, The gasket (3) is divided into different thicknesses, the top side of the gasket (3) is in contact with the bottom side of the lower lug (11), and the bottom side of the gasket (3) is in contact with the top side of the upper lug (21).

4. The tied-arch bridge node reinforcing device according to claim 3, characterized in that, The top of the lower lug (11) is provided with an upper connecting hole (111), the bottom of the upper lug (21) is provided with a lower connecting hole (211), and the inside of the gasket (3) is provided with a middle connecting hole (31), the top of the middle connecting hole (31) is communicated with the upper connecting hole (111), and the bottom of the middle connecting hole (31) is communicated with the lower connecting hole (211).

5. A tied-arch bridge node reinforcing device according to claim 4, characterized in that, The bolt (4) penetrates the upper connecting hole (111), the middle connecting hole (31) and the lower connecting hole (211), the bottom end of the bolt (4) is threadedly connected with a nut (5), and the top of the nut (5) is in contact with the bottom side of the upper lug (21).

6. The tied-arch bridge node reinforcing device according to claim 1, characterized in that, The length of the stress block (6) is three times that of the upper connecting piece (2), and the outer side of the stress block (6) is in contact with the inner side of the upper connecting piece (2).

7. The tied-arch bridge node reinforcing device according to claim 1, wherein The inside of the upper connecting piece (2) is provided with a positioning hole (22), and the top of the stress block (6) is provided with a positioning block (61) which is inserted into the positioning hole (22).

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