U-rib bridge deck slab structure based on parallelogram straining beams

Abstract

The utility model relates to a U-rib bridge deck slab structure based on parallelogram straining beams. The U-rib bridge deck slab structure is characterized by comprising the straining beams, a deck slab unit, a middle cross beam unit and a longitudinal beam unit, the cross section of the tie beam is designed to be in a parallelogram shape so that the stress requirement of the butterfly type tied arch bridge can be met. The straining beam connecting sections are arranged at the ends of the middle cross beam unit, the connecting strength and stress uniformity of the straining beam and the middle cross beam unit are guaranteed in the mode that the ends of the straining beam connecting sections incline downwards and are gradually heightened, meanwhile, the mode that the whole middle cross beam unit is heightened is avoided, and materials are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge construction, in particular to a U-rib bridge deck structure based on a parallelogram tie beam. Background Art

[0002] The deck structure of a general cable-stayed bridge adopts a rectangular cross-section tie beam structure, and the ends of the deck are welded to the sides of the tie beam; however, for a butterfly-type tie-arch bridge structure, such as Figure 1 As shown: In order to increase the supporting strength of the bridge deck unit, the cross-section of the tie beam at the edge of the bridge deck needs to be changed to a parallelogram structure. The conventional middle cross beam end is changed to an inclined end face which cannot meet the stress conditions connected to the tie beam, but increasing the overall thickness increases the manufacturing cost and wastes materials. Therefore, a new U-rib bridge deck structure schematic diagram based on a parallelogram tie beam is needed. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a U-rib bridge deck structure based on a parallelogram tie beam, which can solve the problem that the middle cross beam connected to the general parallelogram tie beam can not meet the stress strength of the bridge deck by only using inclined end welding.

[0004] In order to solve the above technical problems, the technical solution of the utility model is: a U-rib bridge deck structure based on a parallelogram tie beam, the innovation of which is: comprising a tie beam, a deck unit, a middle cross beam unit and a longitudinal beam unit;

[0005] The tie beam is a box structure with a parallelogram cross section, and there is a pair of tie beams that are symmetrically arranged, with a gap between the tie beams for laying panel units;

[0006] The panel units have a plurality of panels which are welded to each other to form a bridge deck segment and are laid in an area between two tie beams;

[0007] The panel unit comprises a bridge deck, a U-shaped rib and a toothed plate; the back of the bridge deck is provided with a plurality of U-shaped ribs parallel to each other at equal intervals in width; the toothed plate has a plurality of teeth, and the toothed plate is provided with tooth grooves for accommodating the U-shaped ribs to be embedded, the toothed plate is vertically arranged on the back of the bridge deck, and the tooth grooves of the toothed plate accommodate the U-shaped ribs to pass through, and the inner contour of the tooth groove of the toothed plate is welded to the outer wall of the U-shaped rib;

[0008] The middle cross beam units are provided in multiple numbers and are vertically welded on the back of the bridge deck segment. The middle cross beam units are arranged in parallel with the toothed plate. The middle cross beam units include a middle section and a tie beam connecting section. The cross sections of the middle section and the tie beam connecting section are both I-shaped structures.

[0009] The longitudinal beam units have three groups including a first longitudinal beam unit, a second longitudinal beam unit and a third longitudinal beam unit; the first longitudinal beam unit is arranged between adjacent tie beam connecting sections at one end of the middle section and is arranged perpendicular to the tie beam connecting sections; the second longitudinal beam unit is arranged between adjacent tie beam connecting sections at the other end of the middle section and is arranged perpendicular to the tie beam connecting sections; the third longitudinal beam unit is vertically arranged between adjacent middle sections.

[0010] Furthermore, both ends of the middle section are vertical ends; one end of the tie beam connecting section is a vertical end, and the other end is an inclined end and is used for welding to fit the outer contour of the tie beam; near the inclined end of the tie beam connecting section, the bottom end of the tie beam connecting section is inclined downward, and the top end remains horizontal, so that the longitudinal height of the tie beam connecting section near the inclined section is greater than the longitudinal height of the middle section.

[0011] Furthermore, a cantilever arm connecting seat for mounting the cantilever arm is provided at the outer edge of the tie beam.

[0012] The advantages of the utility model are:

[0013] 1) In the utility model, the cross section of the tie beam is designed to be a parallelogram to meet the force requirements of the butterfly-type tie-bar arch bridge; a tie beam connecting section is provided at the end of the middle cross beam unit, so that the connection strength and force uniformity between the tie beam and the middle cross beam unit are ensured in a manner that the end position of the tie beam connecting section is gradually increased by tilting downward, while also avoiding the overall increase of the entire middle cross beam unit, thereby saving materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0015] Figure 1 This is a schematic diagram of the cross-sectional structure of a butterfly-type tied arch bridge.

[0016] Figure 2 The utility model is a structural diagram of a U-rib bridge deck based on a parallelogram tie beam.

[0017] Figure 3 It is a partial stereoscopic diagram of a U-rib bridge deck based on a parallelogram tie beam of the utility model. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0019] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] like Figures 2 to 3 A U-rib bridge deck structure based on a parallelogram tie beam is shown, comprising a tie beam 1, a deck unit 2, a middle cross beam unit 3 and a longitudinal beam unit 4.

[0021] The tie beam 1 is a box structure with a parallelogram cross section, and the tie beams 1 are in a pair and are symmetrically arranged, with gaps for laying the panel units 2 being left between the tie beams 1 .

[0022] The panel unit 2 has a plurality of panels which are welded to each other to form a bridge deck segment and are laid in an area between two tie beams 1 .

[0023] The panel unit 2 includes a bridge panel 21, U-shaped ribs 22 and a toothed plate 23; a plurality of U-shaped ribs 22 parallel to each other are arranged at equal intervals across the back of the bridge panel 21; there are a plurality of toothed plates 23, and the toothed plates 23 are provided with tooth grooves for accommodating the U-shaped ribs 22 to be embedded; the toothed plate 23 is vertically arranged on the back of the bridge panel 21, and the tooth grooves of the toothed plate 23 accommodate the U-shaped ribs 22 to pass through, and the inner contour of the tooth grooves of the toothed plate 23 is welded to the outer wall of the U-shaped ribs 22.

[0024] The middle cross beam unit 3 has several units and is vertically welded on the back of the bridge deck segment. The middle cross beam unit 3 is arranged parallel to the toothed plate 23. The middle cross beam unit 3 includes a middle section 31 and a tie beam connecting section 32. The cross sections of the middle section 31 and the tie beam connecting section 32 are both I-shaped structures.

[0025] The longitudinal beam unit 4 has three groups including a first longitudinal beam unit 41, a second longitudinal beam unit 42 and a third longitudinal beam unit 43; the first longitudinal beam unit 41 is arranged between adjacent tie beam connecting sections 32 at one end of the middle section 31, and is arranged perpendicular to the tie beam connecting section 32; the second longitudinal beam unit 42 is arranged between adjacent tie beam connecting sections 32 at the other end of the middle section 31, and is arranged perpendicular to the tie beam connecting section 32; the third longitudinal beam unit 43 is vertically arranged between adjacent middle sections 31.

[0026] Both ends of the middle section 31 are vertical ends; one end of the tie beam connecting section 32 is a vertical end, and the other end is an inclined end and is used for welding to fit the outer contour of the tie beam 1; near the inclined end of the tie beam connecting section 32, the bottom end of the tie beam connecting section 32 is inclined downward, and the top end remains horizontal, so that the longitudinal height of the tie beam connecting section 32 near the inclined section is greater than the longitudinal height of the middle section 31.

[0027] A cantilever arm connecting seat for mounting the cantilever arm is arranged at the outer edge of the tie beam 1 .

[0028] The working principle of the utility model is as follows: by designing the cross section of the tie beam to be a parallelogram to meet the force requirements of the butterfly-type tie-bar arch bridge; by arranging a tie beam connecting section at the end of the middle cross beam unit, in a manner of gradually increasing the height by tilting downward through the end position of the tie beam connecting section, the connection strength and force uniformity between the tie beam and the middle cross beam unit are ensured, while also avoiding the overall increase in the height of the entire middle cross beam unit, thereby saving materials.

[0029] Those skilled in the art should understand that the present invention is not limited by the above-mentioned embodiments. The above-mentioned embodiments and the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements shall fall within the scope of the present invention to be protected.

Claims

1. A U-rib bridge deck structure based on a parallelogram tie beam, characterized in that: It includes tie beams, panel elements, center beam elements and longitudinal beam elements; The tie beam is a box structure with a parallelogram cross section, and there is a pair of tie beams that are symmetrically arranged, with a gap between the tie beams for laying panel units; The panel units have a plurality of panels which are welded to each other to form a bridge deck segment and are laid in an area between two tie beams; The panel unit comprises a bridge deck, a U-shaped rib and a toothed plate; the back of the bridge deck is provided with a plurality of U-shaped ribs parallel to each other at equal intervals in width; the toothed plate has a plurality of teeth, and the toothed plate is provided with tooth grooves for accommodating the U-shaped ribs to be embedded, the toothed plate is vertically arranged on the back of the bridge deck, and the tooth grooves of the toothed plate accommodate the U-shaped ribs to pass through, and the inner contour of the tooth groove of the toothed plate is welded to the outer wall of the U-shaped rib; The middle cross beam units are provided in multiple numbers and are vertically welded on the back of the bridge deck segment. The middle cross beam units are arranged in parallel with the toothed plate. The middle cross beam units include a middle section and a tie beam connecting section. The cross sections of the middle section and the tie beam connecting section are both I-shaped structures. The longitudinal beam units have three groups including a first longitudinal beam unit, a second longitudinal beam unit and a third longitudinal beam unit; the first longitudinal beam unit is arranged between adjacent tie beam connecting sections at one end of the middle section and is arranged perpendicular to the tie beam connecting sections; the second longitudinal beam unit is arranged between adjacent tie beam connecting sections at the other end of the middle section and is arranged perpendicular to the tie beam connecting sections; the third longitudinal beam unit is vertically arranged between adjacent middle sections.

2. A U-rib bridge deck structure based on parallelogram tie beams according to claim 1, characterized in that: Both ends of the middle section are vertical ends; one end of the tie beam connecting section is a vertical end, and the other end is an inclined end and is used for welding to fit the outer contour of the tie beam; near the inclined end of the tie beam connecting section, the bottom end of the tie beam connecting section is inclined downward, and the top end remains horizontal, so that the longitudinal height of the tie beam connecting section near the inclined section is greater than the longitudinal height of the middle section.

3. The U-rib bridge deck structure based on parallelogram tie beams according to claim 1, characterized in that: A cantilever arm connecting seat for installing the cantilever arm is arranged at the outer edge of the tie beam.

Images