Concrete partition plate structure for reducing T-rib steel bridge deck slab-transverse partition plate cross notch stress

Abstract

The utility model relates to a concrete clapboard structure for reducing T rib steel bridge deck slab-diaphragm plate cross notch stress, which comprises a diaphragm plate and a steel bridge deck slab composed of a cover plate and a T rib, the upper end of the diaphragm plate is provided with a notch for the T rib to stretch in, the diaphragm plate is crossed with the T rib, the T rib continuously penetrates through the notch of the diaphragm plate, and the T rib is arranged in the notch of the diaphragm plate. A high-performance concrete partition plate is arranged between the transverse partition plate and the T rib, the center of the high-performance concrete partition plate in the thickness direction corresponds to the plate thickness center of the transverse partition plate, and toggle pins are arranged in the high-performance concrete partition plate. The structure can effectively reduce the cross notch stress of the T-rib steel bridge deck and the diaphragm plate, and reduce the fatigue problem caused by welding the T-rib steel bridge deck and the diaphragm plate by using steel plates.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of concrete partition structures for reducing the stress of T rib steel bridge deck plate-crossing diaphragm. BACKGROUND

[0002] Orthotropic steel bridge deck plate is by panel, longitudinal rib and cross rib through welding and is composed of longitudinal and transverse stiffness with significant difference collaborative stress system, because with light weight, high bearing capacity, construction speed fast and other advantages, in large-span bridge, medium-span bridge, municipal bridge and landscape bridge are widely used. However, due to the bridge deck plate welds, welding structure is complex, and there are a large number of bridge fatigue cracking cases, has become a difficult problem in design. Orthotropic steel bridge deck plate is divided into two forms of open and closed, T rib belongs to one kind of open rib, although the stiffening stiffness of T rib is slightly weak, but welding structure details are simpler, the connection structure between longitudinal rib and top plate and diaphragm is also different, so that local stress concentration degree is different.

[0003] The existing T rib steel bridge adopts steel plate welding connection at diaphragm notch, excessive welding can introduce new fatigue problems, and does not reduce the stress of T rib steel bridge deck plate-crossing diaphragm. At present, there are few structures about T rib steel bridge deck plate-crossing diaphragm, so it is necessary to propose a new structure to reduce the stress of T rib steel bridge deck plate-crossing diaphragm, so as to reduce the occurrence of fatigue cracks and prolong the service life of steel bridge deck plate. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a kind of concrete partition structures for reducing the stress of T rib steel bridge deck plate-crossing diaphragm, which can effectively reduce the stress of T rib steel bridge deck plate and diaphragm crossing, reduce the fatigue problems caused by steel plate welding of T rib steel bridge deck plate and diaphragm.

[0005] The technical scheme of the utility model is as follows: a kind of concrete partition structures for reducing the stress of T rib steel bridge deck plate-crossing diaphragm, including diaphragm and steel bridge deck plate composed of cover plate and T rib, the upper end of the diaphragm is provided with slot for T rib to extend into, diaphragm and T rib intersect, and T rib continuously passes through the slot of diaphragm, high-performance concrete partition is arranged between diaphragm and T rib, the center of high-performance concrete partition thickness direction corresponds with the plate thickness center of diaphragm, and bolt is arranged in high-performance concrete partition.

[0006] Further, the upper end of the diaphragm is provided with slot according to the width of the lower flange plate of T rib, slot edge steel plate is welded on both sides of the slot, and the bolt is welded on the web of T rib and / or slot edge steel plate.

[0007] Further, double-row studs are welded on the web plate of the T rib and the notch edge steel plate, and are symmetric about the transverse bulkhead plane, and the studs are embedded in the high-performance concrete bulkhead.

[0008] Further, the notch edge steel plate is a vertical steel plate, an L-shaped steel plate, a channel steel, or an L-shaped channel steel.

[0009] Further, the vertical steel plate is perpendicular to the transverse bulkhead plane in the bridge direction and is symmetric about the transverse bulkhead plane, and the high-performance concrete bulkhead is formed by cooperation of a front mold plate, a rear mold plate, and a bottom mold plate and the vertical steel plate, and the upper end of the front mold plate is lower than the cover plate to form a feeding opening for pouring the high-performance concrete.

[0010] Further, the L-shaped steel plate is perpendicular to the transverse bulkhead plane in the bridge direction and is symmetric about the transverse bulkhead plane, and the lower flange of the L-shaped steel plate is connected to or close to the web plate of the T rib, and the high-performance concrete bulkhead is formed by cooperation of a front mold plate, a rear mold plate, and the L-shaped steel plate, and the upper end of the front mold plate is lower than the cover plate to form a feeding opening for pouring the high-performance concrete.

[0011] Further, the channel steel is perpendicular to the transverse bulkhead plane in the bridge direction and is symmetric about the transverse bulkhead plane, and the two side flanges of the channel steel are away from the web plate of the T rib by a distance, and the high-performance concrete bulkhead is formed by cooperation of a front mold plate, a rear mold plate, and a bottom mold plate and the channel steel, and the upper end of the front mold plate is lower than the cover plate to form a feeding opening for pouring the high-performance concrete.

[0012] Further, the L-shaped channel steel is perpendicular to the transverse bulkhead plane in the bridge direction and is symmetric about the transverse bulkhead plane, and the two side flanges of the L-shaped channel steel are away from the web plate of the T rib by a distance, and the lower flange of the L-shaped channel steel is connected to or close to the web plate of the T rib, and the high-performance concrete bulkhead is formed by cooperation of a front mold plate, a rear mold plate, and the L-shaped channel steel, and the upper end of the front mold plate is lower than the cover plate to form a feeding opening for pouring the high-performance concrete.

[0013] Further, the high-performance concrete bulkheads are symmetrically arranged on the two sides of the T rib, the top of the high-performance concrete bulkhead is connected to the bottom surface of the cover plate, and the bottom surface of the high-performance concrete bulkhead is away from the lower flange plate of the T rib by a gap, and the height of the gap is 1 / 5 to 1 / 3 of the height of the T rib.

[0014] Further, the high-performance concrete bulkhead is made of ultra-high-performance concrete, fiber concrete, or grouting material, and the thickness of the high-performance concrete bulkhead in the bridge direction is greater than the thickness of the transverse bulkhead.

[0015] Compared with the prior art, the utility model has the advantages that the stress is reasonable, the strength is high, the stress of T rib steel bridge deck slab and cross cut of cross diaphragm can be effectively reduced, the fatigue problem caused by welding of T rib steel bridge deck slab and cross diaphragm is reduced, the safety of T rib steel bridge deck slab is fully ensured, and the service life of steel bridge deck slab is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the schematic view of the slot edge steel plate being vertical steel plate for the utility model embodiment one;

[0017] Figure 2 It is the schematic view of the slot edge steel plate being L shape steel plate for the utility model embodiment two;

[0018] Figure 3 It is the schematic view of the slot edge steel plate being channel steel for the utility model embodiment three;

[0019] Figure 4 It is the schematic view of the slot edge steel plate being L shape channel steel for the utility model embodiment four;

[0020] Figure 5 It is the template schematic view of the utility model;

[0021] In the drawing: 1-steel bridge deck slab;101-cover plate;102-T rib;103-T rib's web;104-T rib's lower flange plate;2-cross diaphragm;201-slot;301-vertical steel plate;302-L shape steel plate;303-channel steel;304-L shape channel steel;4-bolt;5-high performance concrete diaphragm;6-formwork;601-front formwork;603-bottom formwork;7-feeding port. DETAILED DESCRIPTION

[0022] In order to make the above features and advantages of the utility model more obvious, the following embodiment is taken, and the detailed description is as follows by cooperating with the drawings, but the utility model is not limited to this.

[0023] Embodiment one reference Figure 1 And Figure 5

[0024] A kind of reduce T rib steel bridge deck slab-cross diaphragm cross cut stress concrete diaphragm structure, including cross diaphragm 2 and by cover plate 101 with T rib 102 composition steel bridge deck slab 1, the upper end of the cross diaphragm 2 is set with the slot 201 for T rib 102 to extend into, cross diaphragm 2 and T rib 102 cross, and T rib 102 continuously passes through the slot 201 of cross diaphragm 2, high performance concrete diaphragm 5 is arranged between cross diaphragm 2 and T rib 102, the center of the thickness direction of the high performance concrete diaphragm 5 corresponds with the plate thickness center of cross diaphragm 2, bolt 4 is provided in high performance concrete diaphragm 5.

[0025] In the embodiment, the upper end of the diaphragm plate 2 is provided with a notch 201 with the width of the lower flange plate 104 of the T rib, both sides of the notch 201 are welded with notch edge steel plates, and the studs 4 are welded on the web plate 103 of the T rib and / or the notch edge steel plates.

[0026] In the embodiment, the web plate 103 of the T rib and the notch edge steel plates are welded with double-row studs 4, and the double-row studs 4 are symmetric about the plane of the diaphragm plate 2, and the studs 4 are embedded in the high-performance concrete diaphragm 5.

[0027] In the embodiment, the notch edge steel plate is a vertical steel plate 301. The vertical steel plate 301 is perpendicular to the plane of the diaphragm plate 2 in the bridge direction and is symmetric about the plane of the diaphragm plate 2, and the high-performance concrete diaphragm 5 is formed by cooperating with the front formwork 601, the rear formwork, the bottom formwork 603 and the vertical steel plate 301 to form a formwork when the high-performance concrete diaphragm 5 is made, and the upper end of the front formwork 601 is lower than the cover plate 101 to form a feeding port 7 for pouring high-performance concrete.

[0028] In the embodiment, the high-performance concrete diaphragm 5 is symmetrically arranged on both sides of the T rib 102, the top of the high-performance concrete diaphragm 5 is connected with the bottom surface of the cover plate 101, and there is a gap between the bottom surface of the high-performance concrete diaphragm 5 and the lower flange plate 104 of the T rib, and the height of the gap is 1 / 5-1 / 3 of the height of the T rib 102.

[0029] In the embodiment, the high-performance concrete diaphragm 5 is made of ultra-high-performance concrete, fiber concrete or grouting material.

[0030] In the embodiment, the thickness of the high-performance concrete diaphragm 5 in the bridge direction is greater than the thickness of the diaphragm plate, and the thickness of the high-performance concrete diaphragm 5 is 50-120 mm.

[0031] Embodiment two Reference Figure 2

[0032] The difference between the embodiment and the embodiment one is that the notch edge steel plate of the embodiment is an L-shaped steel plate 302.

[0033] In the embodiment, the L-shaped steel plate 302 is perpendicular to the plane of the diaphragm plate 2 in the bridge direction and is symmetric about the plane of the diaphragm plate 2, the lower flange of the L-shaped steel plate 302 is connected with or close to the web plate 103 of the T rib, and the high-performance concrete diaphragm 5 is formed by cooperating with the front formwork 601, the rear formwork and the L-shaped steel plate 302 to form a formwork when the high-performance concrete diaphragm 5 is made, and the upper end of the front formwork 601 is lower than the cover plate 101 to form a feeding port 7 for pouring high-performance concrete.

[0034] Embodiment three Reference Figure 3 and Figure 5

[0035] The difference between the embodiment and the embodiment one is that the notch edge steel plate of the embodiment is a channel steel 303.

[0036] In the embodiment, the channel steel 303 is perpendicular to the plane of the transverse bulkhead 2 along the bridge direction and is symmetric about the plane of the transverse bulkhead 2, the two side flanges of the channel steel 303 are away from the web 103 of the T rib by a distance, the high-performance concrete bulkhead 5 is formed by using a front formwork 601, a rear formwork and a bottom formwork 603 and the channel steel 303 to cooperate to form a formwork, and the upper end of the front formwork 601 is lower than the cover plate 101 to form a feeding opening 7 for pouring the high-performance concrete.

[0037] Embodiment four Reference Figure 4

[0038] The difference between the embodiment and the embodiment one is that the notch edge steel plate of the embodiment is a channel steel 303.

[0039] In the embodiment, the channel steel 303 is perpendicular to the plane of the transverse bulkhead 2 along the bridge direction and is symmetric about the plane of the transverse bulkhead 2, the two side flanges of the channel steel 303 are away from the web 103 of the T rib by a distance, the high-performance concrete bulkhead 5 is formed by using a front formwork 601, a rear formwork and a bottom formwork 603 and the channel steel 303 to cooperate to form a formwork, and the upper end of the front formwork 601 is lower than the cover plate 101 to form a feeding opening 7 for pouring the high-performance concrete.

[0040] If the utility model discloses or relates to the parts or structural members fixedly connected with each other, then, except for another declaration, fixed connection can be understood as: detachably fixed connection (for example, using bolt or screw connection), and also can be understood as: non-detachable fixed connection (for example, riveting, welding), of course, the fixed connection with each other can also be replaced by an integral structure (for example, using casting process integral forming manufacturing) (obviously, except for the integral forming process).

[0041] In addition, the terms used for indicating the position relationship or shape in any of the technical solutions disclosed in the utility model above include the approximate, similar or close state or shape, except for another declaration.

[0042] Any component provided by the utility model can be assembled by a plurality of individual components, or can be an individual component manufactured by an integral forming process.

[0043] The above only describes the preferred embodiments of the utility model, and any change and modification made within the scope of the utility model application patent shall belong to the coverage range of the utility model.

Claims

1. A concrete diaphragm structure for reducing stress at a T-rib bridge deck slab-diaphragm intersection cut, comprising a diaphragm and a steel bridge deck slab consisting of a cover slab and a T-rib, characterized by, The upper end of the diaphragm plate is provided with a notch for the T rib to extend into, the diaphragm plate intersects with the T rib, and the T rib continuously passes through the notch of the diaphragm plate, and a high-performance concrete partition plate is arranged between the diaphragm plate and the T rib, the center of the thickness direction of the high-performance concrete partition plate corresponds to the center of the plate thickness of the diaphragm plate, and a stud is arranged in the high-performance concrete partition plate.

2. The concrete barrier structure of claim 1, wherein, The upper end of the diaphragm plate is provided with a notch for the T rib to extend into, the diaphragm plate intersects with the T rib, and the T rib continuously passes through the notch of the diaphragm plate, and a high-performance concrete partition plate is arranged between the diaphragm plate and the T rib, the center of the thickness direction of the high-performance concrete partition plate corresponds to the center of the plate thickness of the diaphragm plate, and a stud is arranged in the high-performance concrete partition plate.

3. The concrete barrier structure of claim 2, wherein, The web plate and the notch edge steel plate of the T rib are both welded with double-row studs and are symmetrical about the plane of the diaphragm plate, and the studs are embedded in the high-performance concrete partition plate.

4. The concrete barrier structure of reducing the stress of T-rib steel bridge deck panel-cross diaphragm intersection according to claim 2 or 3, characterized in that, The notch edge steel plate is a vertical steel plate, an L-shaped steel plate, a channel steel or an L-shaped channel steel.

5. The concrete barrier structure of claim 4, wherein the T-rib steel bridge deck panel - transverse diaphragm intersection cut stress is reduced by, The vertical steel plate is perpendicular to the plane of the diaphragm plate in the bridge direction and is symmetrical about the plane of the diaphragm plate, the high-performance concrete is formed by cooperation of a front mold plate, a rear mold plate, a bottom mold plate and the vertical steel plate, and the upper end of the front mold plate is lower than the cover plate to form a feeding port for pouring the high-performance concrete.

6. The concrete barrier structure of claim 4, wherein, The L-shaped steel plate is perpendicular to the plane of the diaphragm plate in the bridge direction and is symmetrical about the plane of the diaphragm plate, the lower flange of the L-shaped steel plate is connected or close to the web plate of the T rib, the high-performance concrete partition plate is formed by cooperation of a front mold plate, a rear mold plate and the L-shaped steel plate, and the upper end of the front mold plate is lower than the cover plate to form a feeding port for pouring the high-performance concrete.

7. The concrete barrier structure of claim 4, wherein the T-rib steel bridge deck panel - transverse diaphragm intersection cut stress is reduced by, The channel steel is perpendicular to the plane of the diaphragm plate in the bridge direction and is symmetrical about the plane of the diaphragm plate, the two side flanges of the channel steel are away from the web plate of the T rib by a distance, the high-performance concrete partition plate is formed by cooperation of a front mold plate, a rear mold plate, a bottom mold plate and the channel steel, and the upper end of the front mold plate is lower than the cover plate to form a feeding port for pouring the high-performance concrete.

8. The concrete barrier structure of claim 4, wherein the T-rib steel bridge deck panel- cross diaphragm intersection cut stress is reduced by, The L-shaped channel steel is perpendicular to the plane of the diaphragm plate in the bridge direction and is symmetrical about the plane of the diaphragm plate, the two side flanges of the L-shaped channel steel are away from the web plate of the T rib by a distance, the lower flange of the L-shaped channel steel is connected or close to the web plate of the T rib, the high-performance concrete partition plate is formed by cooperation of a front mold plate, a rear mold plate and the L-shaped channel steel, and the upper end of the front mold plate is lower than the cover plate to form a feeding port for pouring the high-performance concrete.

9. The concrete barrier structure that reduces the stress of the T-rib bridge deck slab - transverse slab intersection cut of claim 1, 2, 3, 5, 6, 7 or 8, characterized in that, The high-performance concrete partition plates are symmetrically arranged on the two sides of the T rib, the top of the high-performance concrete partition plate is connected with the bottom surface of the cover plate, and there is a gap between the bottom surface of the high-performance concrete partition plate and the lower flange plate of the T rib, and the height of the gap is 1 / 5-1 / 3 of the height of the T rib.

10. The concrete barrier structure of claim 1, wherein, The high-performance concrete partition plate is made of ultra-high-performance concrete, fiber concrete or grouting material, and the thickness of the high-performance concrete partition plate in the bridge direction is greater than the thickness of the diaphragm plate.

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