CN217733754U - Limiting device for steel-concrete combined bridge floor of through-type steel arch bridge - Google Patents
Limiting device for steel-concrete combined bridge floor of through-type steel arch bridge Download PDFInfo
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- CN217733754U CN217733754U CN202220891154.4U CN202220891154U CN217733754U CN 217733754 U CN217733754 U CN 217733754U CN 202220891154 U CN202220891154 U CN 202220891154U CN 217733754 U CN217733754 U CN 217733754U
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Abstract
The utility model provides a stop device for holding formula steel arch bridge steel reinforced concrete combination bridge floor down, include: the steel longitudinal beam fixing device comprises a limiting bolt and an anchoring piece, wherein the limiting bolt and the anchoring piece are welded on the top surface of a steel longitudinal beam; wherein, the anchor is pre-buried in the concrete bridge deck. The advantages are that: the longitudinal tensile stress of the steel longitudinal beam is prevented from being transmitted to the concrete bridge deck, the concrete bridge deck is prevented from cracking, and the durability is improved; in addition, the concrete bridge deck is ensured not to generate overlarge longitudinal and transverse displacement, and the bridge deck driving comfort is ensured; the utility model discloses the structure is succinct, the installation is also convenient, is suitable for the popularization.
Description
Technical Field
The utility model belongs to the technical field of the bridge building technique and specifically relates to a stop device that is used for through-put steel arch bridge steel-concrete combination bridge floor.
Background
Along with the continuous development of domestic bridge construction, the construction quantity of the through type steel tied arch bridge is gradually increased, and in order to solve the problem of durability of steel bridge deck pavement and prevent the generation of pavement diseases of the steel bridge deck, a steel-concrete combined bridge deck structure is produced at the same time; the steel-concrete combined bridge deck structure perfectly solves the problem of pavement diseases and brings another problem; under the effect of constant load and live load, steel tie rod and steel longeron can receive the great pulling force effect of longitudinal bridge to, and traditional steel-concrete combination bridge floor structure is the structural style of consolidating concrete bridge deck slab and steel longeron together through the shear force nail, therefore the concrete bridge deck slab can receive the longitudinal tension of steel longeron, thereby cause the easy fracture of concrete bridge deck slab, arouse the bridge deck pavement fracture along with it, bridge floor ponding then permeates to the steel longeron top surface through the crack, arouse the corrosion, and be difficult to discover and maintain, not only the bridge floor durability is poor, the corrosion is along with the long-term accumulation of degree, the structural safety of bridge can be endangered to serious then.
SUMMERY OF THE UTILITY MODEL
The utility model provides a stop device for holding formula steel arch bridge steel-concrete combination bridge floor under, the purpose is overcome above-mentioned technical defect at least, prevents the fissured production of concrete slab, improves bridge floor durability and driving comfort level.
In order to realize the purpose of the utility model, the utility model provides a following technical scheme:
a limiting device for a steel-concrete combined bridge floor of a through-type steel arch bridge comprises a limiting bolt and an anchoring piece, wherein the limiting bolt and the anchoring piece are welded on the top surface of a steel longitudinal beam;
wherein, the anchor is pre-buried in the concrete bridge deck.
Preferably, the limiting bolt is a round steel bar.
Preferably, a flexible part is sleeved along the periphery of the limiting bolt in the length direction, and the flexible part is positioned in the anchoring part;
the limiting sleeve, the limiting bolt and the flexible piece share a longitudinal central line.
Preferably, the anchoring part comprises a sealing plate arranged transversely, a limiting sleeve arranged longitudinally and a plurality of anchoring studs arranged at equal intervals along the circumferential direction of the sleeve, the sealing plate is vertically fixed on the top end face of the limiting sleeve to form a structure with a T-shaped longitudinal section, and the limiting stud and the flexible part are accommodated in the limiting sleeve;
wherein, be equipped with along spacing sleeve direction of height is equidistant the anchor peg.
Preferably, a gap is reserved between the top of the limiting bolt and the inner top wall of the limiting sleeve.
Preferably, the lower part of the limiting bolt is embedded in the leveling mortar, and the bottom end surface of the limiting sleeve is abutted to the top end surface of the leveling mortar.
The utility model discloses a stop device for holding formula steel arch bridge steel reinforced concrete combination bridge floor down, its advantage: the design of the structure of the utility model avoids the longitudinal tensile stress of the steel longitudinal beam from being transmitted to the concrete bridge deck, prevents the concrete bridge deck from cracking and improves the durability; in addition, the concrete bridge deck is ensured not to generate overlarge longitudinal and transverse displacement, and the bridge deck driving comfort is ensured; the utility model discloses the structure is succinct, the installation is also convenient, is suitable for the popularization.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the principles of the invention. In the drawings:
fig. 1 is a schematic structural view of a limiting device for a steel-concrete composite bridge floor of a through-type steel arch bridge of the present invention;
FIG. 2 isbase:Sub>A schematic sectional view taken along the line A-A in FIG. 1;
FIG. 3 is a schematic sectional view taken along line B-B in FIG. 1;
FIG. 4 is a diagram of the use state of the limiting device for the steel-concrete composite bridge floor of the through steel arch bridge of the present invention;
wherein:
the steel longitudinal beam comprises a steel longitudinal beam 1 and a limiting bolt 2;
the anchoring part 3, the closing plate 31, the limiting sleeve 32 and the anchoring stud 33;
concrete bridge deck 4, flexible piece 5, leveling mortar 6.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.
According to the drawings of fig. 1, 2 and 4, the limiting device for the steel-concrete combined bridge floor of the through-type steel arch bridge comprises a limiting bolt 2 and an anchoring piece 3 which are welded on the top surface of a steel longitudinal beam 1, wherein the limiting bolt 2 is sleeved in the anchoring piece 3; wherein, the anchoring piece 3 is pre-embedded in the concrete bridge deck 4. The structure of the embodiment can prevent the tensile stress of the steel longitudinal beam 1 from being transmitted to the concrete bridge deck 4, greatly reduces the cracking internal force of the concrete bridge deck 4, reduces the using amount of steel bars in the concrete bridge deck 4, avoids adopting a prestressed material for improving the durability of the concrete bridge deck 4, and simplifies the construction; meanwhile, the durability of the bridge deck is improved, and the later maintenance work and cost are reduced;
in this embodiment, for ease of operation,
preferably, the limiting bolt 2 is a round steel bar and is welded on the top surface of the steel longitudinal beam 1, so that the operation is convenient, and the limiting bolt and the anchoring piece 3 can cooperate to reduce the tensile stress transmitted to the steel longitudinal beam 1.
In a specific embodiment, as shown in fig. 1, 3 and 4, a flexible member 5 is sleeved on the outer periphery of the limiting bolt 2 in the length direction, and the flexible member 5 is located in the anchoring member 3, so that a small-scale deformation between the concrete bridge deck 4 and the steel longitudinal beam 1 is realized through the compression performance of the flexible member 5, and the purpose of releasing the tensile stress between the concrete bridge deck 4 and the steel longitudinal beam 1 is achieved; and the flexible member 5 is a flexible compressible material.
In a specific embodiment, as shown in fig. 1 to 4, the anchor assembly 3 includes a closing plate 31 disposed horizontally, a limiting sleeve 32 disposed longitudinally, and a plurality of anchor pegs 33 disposed at equal intervals along the circumference of the limiting sleeve 32, the closing plate 31 is perpendicularly fixed to the top end face of the limiting sleeve 32 to form a structure with a T-shaped longitudinal section, and the limiting peg 2 and the flexible element 5 are both accommodated in the limiting sleeve 32; in this embodiment, the limiting bolt 2 limits the limiting sleeve 32, so as to achieve the purpose of large-scale longitudinal and transverse displacement of the tissue bridge deck. In order to prevent the position change or the pulling out of the position-limiting sleeve 32, the sealing plate 31 and the anchoring studs 33 have an anchoring effect on the position-limiting sleeve 32, and in order to improve the anchoring effect, the anchoring studs 33 are arranged at equal intervals along the height direction of the position-limiting sleeve 32.
In order to ensure excellent effect, the limiting sleeve 32, the limiting bolt 2 and the flexible part 5 share a longitudinal central line.
In this embodiment, the anchor pin 33 is welded perpendicularly to the outside of the position-limiting sleeve 32 by a weld; the sealing plate 31 also has the function of sealing the limiting sleeve 32. The outer diameter of the cross section of the flexible element 5 is adapted to the inner diameter of the lower part of the limiting sleeve 32, so that no gap exists between the flexible element 5 and the limiting sleeve 32.
In the embodiment, in order to reduce the transmission of tensile stress and the internal cracking force of the concrete bridge deck 4 during use, a gap is formed between the top of the limiting bolt 2 and the inner top wall of the limiting sleeve 32 according to fig. 1 and 4.
In a specific embodiment, as shown in fig. 1, the lower portion of the limiting bolt 2 is pre-embedded in the leveling mortar 6, and the bottom end surface of the limiting sleeve 32 abuts against the top end surface of the leveling mortar 6, so as to ensure the leveling and the fitting of the concrete bridge deck 4 and the top surface of the steel longitudinal beam 1.
The utility model discloses a realize like this:
firstly, welding and installing the limiting bolt 2 and the top surface of the steel longitudinal beam 1, and then pouring leveling mortar 6 on the top surface of the steel longitudinal beam 1; then, the flexible member 5 is sleeved outside the limit bolt 2 (in the process, the top surface of the flexible member 5 is flush with the top surface of the limit bolt 2), and meanwhile, the seal plate 31, the limit sleeve 32 and the anchor stud 33 are assembled into a whole and then are installed on the limit bolt 2, so that after the anchor member 3, the limit bolt 2 and the anchor stud 33 share a common longitudinal center line, the concrete bridge deck 4 is poured.
The utility model discloses the design of structure has reduced the possibility that bridge floor ponding passes through concrete slab crack corrosion steel longeron, has improved the structural safety degree, can restrict concrete decking to take place big indulging, transversely shift simultaneously, ensures bridge floor driving stability and travelling comfort. And the structure is simple, the installation is convenient, the material consumption is less, the cost is low, and the device is suitable for popularization and application.
It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (5)
1. The utility model provides a stop device that is used for lower formula steel arched bridge steel-concrete combination bridge floor that holds, its characterized in that: the steel longitudinal beam fixing device comprises a limiting bolt (2) and an anchoring piece (3) welded to the top surface of a steel longitudinal beam (1), wherein the limiting bolt (2) is sleeved in the anchoring piece (3);
the anchoring piece (3) is pre-embedded in the concrete bridge deck (4).
2. The limiting device for the steel-concrete combined bridge floor of the underslung steel arch bridge according to claim 1, wherein: the limiting bolt (2) is a round steel bar.
3. The limiting device for the steel-concrete combined bridge floor of the underslung steel arch bridge according to claim 1, wherein: a flexible part (5) is sleeved along the periphery of the limiting bolt (2) in the length direction, and the flexible part (5) is positioned in the anchoring part (3);
the anchoring piece (3) comprises a sealing plate (31) which is transversely arranged, a limiting sleeve (32) which is longitudinally arranged and a plurality of anchoring studs (33) which are arranged at equal intervals along the circumferential direction of the limiting sleeve (32), the sealing plate (31) is vertically fixed on the top end surface of the limiting sleeve (32) to form a structure with a T-shaped longitudinal section, and the limiting stud (2) and the flexible piece (5) are accommodated in the limiting sleeve (32);
wherein the anchoring studs (33) are arranged at equal intervals along the height direction of the limiting sleeve (32);
the limiting sleeve (32), the limiting bolt (2) and the flexible part (5) share a longitudinal central line.
4. The limiting device for the steel-concrete combined bridge floor of the underslung steel arch bridge as claimed in claim 3, wherein: and a gap is reserved between the top of the limiting bolt (2) and the inner top wall of the limiting sleeve (32).
5. The limiting device for the steel-concrete combined bridge floor of the underslung steel arch bridge as claimed in claim 3, wherein: the lower part of the limiting bolt (2) is pre-buried in the leveling mortar (6), and the bottom end surface of the limiting sleeve (32) is abutted against the top end surface of the leveling mortar (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220891154.4U CN217733754U (en) | 2022-04-18 | 2022-04-18 | Limiting device for steel-concrete combined bridge floor of through-type steel arch bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220891154.4U CN217733754U (en) | 2022-04-18 | 2022-04-18 | Limiting device for steel-concrete combined bridge floor of through-type steel arch bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217733754U true CN217733754U (en) | 2022-11-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220891154.4U Active CN217733754U (en) | 2022-04-18 | 2022-04-18 | Limiting device for steel-concrete combined bridge floor of through-type steel arch bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217733754U (en) |
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2022
- 2022-04-18 CN CN202220891154.4U patent/CN217733754U/en active Active
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