CN220468605U - Hot-rolled H-shaped steel composite beam bridge - Google Patents

Abstract

The utility model discloses a hot-rolled H-shaped steel combined beam bridge, which comprises an H-shaped steel beam and a pattern steel plate, wherein the H-shaped steel beam comprises a web plate and a wing plate, a first through hole is formed in the pattern steel plate, a second through hole is formed in the wing plate, fastening bolts penetrate through the first through hole and the second through hole, counter bores are formed in the upper surface of the pattern steel plate, corresponding to the first through hole, and the heads of the fastening bolts are positioned in the counter bores.

Description

Hot-rolled H-shaped steel composite beam bridge

Technical Field

The utility model belongs to the technical field of steel beam bridges, and particularly relates to a hot-rolled H-shaped steel combined beam bridge.

Background

At present, most of common trestle systems in China are steel-concrete trestle platforms (constructed by reinforced concrete) or steel trestle platforms (adopting steel pipe piles and common section steel as structural main bodies, and hot-rolled pattern steel plates are welded on the upper surfaces to bear load and prevent skidding), and the steel-concrete trestle platforms are constructed by adopting the traditional reinforced concrete process and need to undergo complicated and long manual manufacturing processes such as supporting templates, binding reinforcing steel bars, pouring concrete, removing templates, curing and the like; the steel trestle platform needs to be firstly provided with steel pipe piles as structural foundations, pile top beams and piles are paved by adopting channel steel, bearing beams and longitudinal beams are manufactured at pile top positions by adopting I-steel welding, distributing beams are paved on the bearing longitudinal beams by adopting fixing pieces, and finally, pattern steel plates are welded on the distributing beams to be used as bridge deck supports.

The welding pattern steel plate needs professional welding workers, is long in time consumption and high in professional degree, and needs to be cut when being dismantled in the later stage, and the cutting part is damaged frequently to cause that the steel beam and the pattern steel plate cannot be reused.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a method for connecting a pattern steel plate and an H-shaped steel beam by using a fastening bolt, which is convenient to assemble, can not be damaged in the later dismantling process, and can be used for a second time.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a hot rolling H shaped steel combination beam bridge, includes H shaped steel roof beam and decorative pattern steel sheet, H shaped steel roof beam includes web and pterygoid lamina, first through-hole has been seted up on the decorative pattern steel sheet, the second through-hole has been seted up on the pterygoid lamina, wear to be equipped with fastening bolt in first through-hole and the second through-hole, decorative pattern steel sheet upper surface corresponds first through-hole department and is provided with the counter bore, fastening bolt's head is located the counter bore.

Further the second through hole is a threaded hole.

Or nuts are welded at the positions below the wing plates corresponding to the second through holes, and the fastening bolts penetrate through the first through holes and the second through holes and then are connected with the nuts.

Further, a first positioning hole is formed in the side face of the head of the fastening bolt, a second positioning hole is formed in the side face, corresponding to the counter bore, of the pattern steel plate, and positioning pins penetrate through the first positioning hole and the second positioning hole.

Further the locating pin is a steel wire.

The first positioning holes and/or the second positioning holes are further provided with a plurality of positioning holes.

Further, the wing plate comprises an upper wing plate and a lower wing plate, and the upper wing plate and the lower wing plate are respectively provided with a second through hole.

Compared with the prior art, the utility model has the beneficial effects that: the pattern steel plate and the H-shaped steel beam are connected through the fastening bolts, the assembly is easy and quick, the fastening bolts are taken out when the bridge is dismounted subsequently, damage to the bridge is avoided, and the locating pins penetrate into the first locating holes and the second locating holes in the use process to realize the anti-loosening function of the fastening bolts so as to prevent the fastening bolts from falling off due to vibration.

Drawings

FIG. 1 is a schematic view of a hot rolled H-section steel composite girder bridge according to the present utility model;

FIG. 2 is a cross-sectional view of the H-beam mated with a patterned steel plate in accordance with the present utility model;

FIG. 3 is a plan view of a patterned steel sheet according to the present utility model.

Reference numerals: 1. h-shaped steel beams; 11. a web; 111. a second through hole; 12. a wing plate; 2. a patterned steel plate; 21. a first through hole; 211. countersink; 22. a second positioning hole; 3. a fastening bolt; 31. a head; 311. a first positioning hole; 4. a nut; 5. and (5) positioning pins.

Detailed Description

Embodiments of the hot rolled H-section steel composite girder bridge according to the present utility model will be further described with reference to FIGS. 1 to 3.

In the description of the present utility model, it should be noted that, for the azimuth words such as the terms "center", "transverse (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the azimuth and positional relationships are based on the azimuth or positional relationships shown in the drawings, only for convenience of describing the present utility model and simplifying the description, but do not indicate or imply that the apparatus or element to be referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and should not be construed as limiting the specific protection scope of the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features. Thus, the definition of "a first", "a second" feature may explicitly or implicitly include one or more of such feature, and in the description of the present utility model, the meaning of "a number", "a number" is two or more, unless otherwise specifically defined.

The utility model provides a hot rolling H shaped steel combination beam bridge, includes H shaped steel roof beam 1 and decorative pattern steel sheet 2, and H shaped steel roof beam 1 includes web 11 and pterygoid lamina 12, first through-hole 21 has been seted up on the decorative pattern steel sheet 2, second through-hole 111 has been seted up on the pterygoid lamina 12, wear to be equipped with fastening bolt 3 in first through-hole 21 and the second through-hole 111, decorative pattern steel sheet 2 upper surface corresponds first through-hole 21 department and is provided with counter bore 211, the head 31 of fastening bolt 3 is located counter bore 211.

In the initial state, a plurality of second through holes 111 are formed along the length direction of the wing plate 12, and a plurality of first through holes 21 distributed in a matrix form are formed in the same patterned steel plate 2, wherein the spacing between the first through holes 21 in the X or Y direction is preferably an integer multiple of the second through holes 111.

When the H-shaped steel beams 1 are assembled, a plurality of H-shaped steel beams 1 are placed according to preset positions, then a pattern steel plate 2 is paved above, normally one pattern steel plate 2 is connected with a plurality of H-shaped steel beams 1 at the same time, one surface of the pattern steel plate 2 with a counter bore 211 faces upwards, so that a first through hole 21 and a second through hole 111 of the pattern steel plate 2 are aligned, the pattern steel plate 2 and the H-shaped steel beams 1 are fixed by using a fastening bolt 3 through the first through hole 21 and the second through hole 111, and the specific fixing can be realized in the following two modes;

mode one: the second through hole 111 is a threaded hole, and the fastening bolt 3 is directly connected with the second through hole 111 in a threaded manner to achieve fixation.

Mode two: the nut 4 is welded at the position below the wing plate 12 corresponding to the second through hole 111, the fastening bolt 3 passes through the first through hole 21 and the second through hole 111 and then is connected with the nut 4, and at the moment, the fastening bolt 3 passes through the second through hole 111 and then is connected with the nut 4 through threads to realize fixation.

When the screw is detached, the fastening bolt 3 is unscrewed and taken out, and the whole process is not needed to be cut.

In this embodiment, a first positioning hole 311 is formed on a side surface of the head 31 of the fastening bolt 3, a second positioning hole 22 is formed on a side surface of the patterned steel plate 2 corresponding to the counter bore 211, and positioning pins 5 are inserted into the first positioning hole 311 and the second positioning hole 22.

As shown in fig. 3, the two ends of the positioning pin 5 respectively penetrate into the first positioning hole 311 and the second positioning hole 22, after the fastening bolt 3 penetrates into the first through hole 21 and the second through hole 111, the positioning pin 5 can prevent the fastening bolt 3 from rotating relative to the patterned steel plate 2, and when the positioning pin 5 needs to be removed, the positioning pin 5 is taken out.

The preferred locating pin 5 of this embodiment is a steel wire, and the steel wire can be bent by pliers or other tools, and then is smoothly placed into the counter bore 211, and then is stretched to make its two ends extend into the first locating hole 311 and the second locating hole 22, and is forced to bend again when taken out, so that the operation is convenient, and the cost is low.

As shown in fig. 3, the first positioning hole 311 and/or the second positioning hole 22 are provided with a plurality of positioning holes, so that one or more of the first positioning holes 311 and the second positioning hole 22 are substantially aligned, and the fastening bolt 3 is conveniently locked by penetrating the positioning pin 5.

As shown in fig. 1, the wing plate 12 includes an upper wing plate 12 and a lower wing plate 12, and the upper wing plate 12 and the lower wing plate 12 each have a second through hole 111 thereon.

The second through holes 111 are provided at a plurality of positions so that the posture of the H-shaped steel beam 1 can be adjusted without being required, and the H-shaped steel beam 1 is smoothly butted with the patterned steel plate 2.

The above description is only a preferred embodiment of the present utility model, and the protection scope of the present utility model is not limited to the above examples, and all technical solutions belonging to the concept of the present utility model belong to the protection scope of the present utility model. It should be noted that modifications and adaptations to the present utility model may occur to one skilled in the art without departing from the principles of the present utility model and are intended to be within the scope of the present utility model.

Claims (7)

1. The utility model provides a hot rolling H shaped steel combination beam bridge, includes H shaped steel girder and decorative pattern steel sheet, and H shaped steel girder includes web and pterygoid lamina, its characterized in that: the novel steel plate is characterized in that a first through hole is formed in the pattern steel plate, a second through hole is formed in the wing plate, fastening bolts penetrate through the first through hole and the second through hole, counter bores are formed in the upper surface of the pattern steel plate, corresponding to the first through hole, and the heads of the fastening bolts are located in the counter bores.

2. The hot rolled H-section steel composite girder bridge according to claim 1, wherein: the second through hole is a threaded hole.

3. The hot rolled H-section steel composite girder bridge according to claim 1, wherein: and nuts are welded at the positions below the wing plates corresponding to the second through holes, and the fastening bolts penetrate through the first through holes and the second through holes and are connected with the nuts.

4. A hot rolled H-section steel composite girder bridge as claimed in claim 2 or 3, wherein: the side of fastening bolt's head is provided with first locating hole, the side of decorative pattern steel sheet corresponding counter bore is provided with the second locating hole, wear to be equipped with the locating pin in first locating hole and the second locating hole.

5. The hot rolled H-section steel composite girder bridge according to claim 4, wherein: the locating pin is a steel wire.

6. The hot rolled H-section steel composite girder bridge according to claim 5, wherein: the first positioning holes and/or the second positioning holes are provided with a plurality of positioning holes.

7. The hot rolled H-section steel composite girder bridge according to claim 6, wherein: the wing plate comprises an upper wing plate and a lower wing plate, and second through holes are formed in the upper wing plate and the lower wing plate.