CN210135441U

CN210135441U - H-shaped steel with uniform stress distribution

Info

Publication number: CN210135441U
Application number: CN201920724214.1U
Authority: CN
Inventors: 焦宪洲
Original assignee: Jiangsu Yangtian Dragon Metal Structure Manufacturing Co Ltd
Current assignee: Jiangsu Yangtian Dragon Metal Structure Manufacturing Co Ltd
Priority date: 2019-05-21
Filing date: 2019-05-21
Publication date: 2020-03-10
Anticipated expiration: 2029-05-21

Abstract

The utility model relates to a H shaped steel technical field just discloses an even H shaped steel of stress distribution, including the H shaped steel main part, the H shaped steel main part divide into abdomen lumbar plate and two pterygoid laminas, one side fixed connection relative with two pterygoid laminas respectively is on the top and the bottom of abdomen lumbar plate. The utility model discloses a, the triangular supports piece by abdomen waist board both sides consolidates the support to the structure of abdomen waist board and two pterygoid laminas, improve the stable bearing performance of H shaped steel main part, the strengthening rib that utilizes between the triangular supports piece limits the deformation of abdomen waist board and two pterygoid laminas, avoid causing the influence to the bearing performance and the self intensity of H shaped steel main part, constitute the stiffening rib through the triangular supports piece cross fixed plate to the faying face of abdomen waist board and two pterygoid laminas, further improve H shaped steel main part stability can, it takes place deformation to reduce external force to receive H shaped steel main part, reduce the influence to the result of use of H shaped steel main part.

Description

H-shaped steel with uniform stress distribution

Technical Field

The utility model relates to a H shaped steel technical field specifically is an even H shaped steel of stress distribution.

Background

The H-shaped steel is an economic section efficient section with more optimized section area distribution and more reasonable strength-to-weight ratio, and is named because the section is the same as the English letter H. Because all parts of the H-shaped steel are arranged at right angles, the H-shaped steel has the advantages of strong bending resistance, simple construction, cost saving, light structure weight and the like in all directions and is widely applied.

However, when the H-shaped steel on the current market is used, due to the fact that the single H-shaped section is low in torsion resistance and bearing capacity and large in torsion deformation, the H-shaped steel cannot achieve the expected using effect, the bearing performance and the strength of the H-shaped steel are affected, and therefore the H-shaped steel with uniform stress distribution is provided to solve the problems.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides an even H shaped steel of stress distribution possesses advantages such as stability height, when having solved H shaped steel on the existing market and using, because the antitorque bearing capacity of single H shape section is lower, torsional deformation is too big, can lead to H shaped steel can't reach anticipated result of use, influences the bearing performance of H shaped steel and the problem of self intensity.

(II) technical scheme

In order to realize the purpose of high stability, the utility model provides a following technical scheme: the utility model provides an even H shaped steel of stress distribution, includes H shaped steel main part, H shaped steel main part divide into abdomen waist board and two pterygoid lamina, the top and the bottom of abdomen waist board respectively with two pterygoid lamina relative one side fixed connection, the triangular supports piece that the equal fixedly connected with equidistance in top and the bottom of abdomen waist board both sides was arranged, the triangular supports piece is close to one side and the pterygoid lamina fixed connection of pterygoid lamina, corresponding two around alternate on the triangular supports piece be provided with rather than fixed connection's strengthening rib, homonymy four fixedly connected with cross fixed plate between the triangular supports piece.

Preferably, the wing plates are provided with a first cavity and a second cavity which are communicated from front to back, the first cavity is located between the two second cavities, the left side and the right side of the two second cavities are provided with two third cavities, and the cross section of the third cavity on the outer side is smaller than that of the third cavity on the inner side.

Preferably, the cross-sectional shape of the first cavity is a triangle, the cross-sectional shape of the second cavity is a rectangle, and the cross-sectional shape of the third cavity is a trapezoid.

Preferably, the left side and the right side of one side opposite to the two wing plates form a one-hundred-five-degree included angle with the abdomen and waist plate.

Preferably, the reinforcing rib is a twisted steel cable of prestressed twisted steel wires.

Preferably, the corners of the inner sides of the first cavity, the second cavity and the third cavity are all rounded.

(III) advantageous effects

Compared with the prior art, the utility model provides an even H shaped steel of stress distribution possesses following beneficial effect:

1. this even H shaped steel of stress distribution, constitute H shaped steel main part through web waist board and two pterygoid laminas, the triangular supports piece by web waist board both sides is consolidated the support to the structure of web waist board and two pterygoid laminas, improve the stable bearing performance of H shaped steel main part, utilize strengthening rib between the triangular supports piece to restrict the deformation of web waist board and two pterygoid laminas, avoid causing the influence to the bearing performance and the self intensity of H shaped steel main part, constitute the stiffening rib through the triangular supports piece cross fixed plate to the faying face of web waist board and two pterygoid laminas, further improve H shaped steel main part stability, it takes place deformation to reduce the H shaped steel main part to receive external force, reduce the influence to the result of use of H shaped steel main.

2. The H-shaped steel with uniform stress distribution improves the use performance of the wing plate through the first cavity, the second cavity and the third cavity on the wing plate, and the wing plate has larger load limit compared with the common H-shaped steel and increases the use effect of the H-shaped steel main body because the bending-resistant section coefficient Wt with the same sectional area is larger than that of the wing plate.

3. This even H shaped steel of stress distribution because the cross sectional shape of first cavity is triangle-shaped, and the cross sectional shape of second cavity is the rectangle, thereby the cross sectional shape of third cavity carries out reasonable distribution for trapezoidal cross-section to the pterygoid lamina for the inside stress distribution of H shaped steel main part is more even, avoids appearing because the crack that the stress inequality leads to.

4. This stress distribution's even H shaped steel, through the contained angle that pterygoid lamina relative one side and waist-abdomen board presented, heighten pterygoid lamina and waist-abdomen board structural stability, increase H shaped steel main part bearing capacity.

5. This even H shaped steel of stress distribution, prestressing force steel strand's key feature is that intensity is high and relaxation performance is good, it is straight more when expanding in addition, be fit for prestressed concrete or similar usage, have fine tensile strength, can restrict the deformation of abdomen waist board and two pterygoid laminas, through the strengthening rib with the even distribution of stress transmission of certain part in the H shaped steel main part to the H shaped steel main part simultaneously, when increasing H shaped steel main part life, strengthen the self intensity of H shaped steel main part.

6. This stress distribution's H shaped steel avoids the back of first cavity, second cavity and third cavity obvious edges and corners to appear, and less atress appears cracked possibility.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a left side view structure diagram of the present invention.

In the figure: 1. an H-shaped steel main body; 2. a belly-waist plate; 3. a wing plate; 4. a triangular support block; 5. reinforcing ribs; 6. a cross-shaped fixing plate; 7. a first cavity; 8. a second cavity; 9. a third cavity.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, the H-shaped steel comprises an H-shaped steel body 1, the H-shaped steel body 1 is divided into a waist-and-abdomen plate 2 and two wing plates 3, the top end and the bottom end of the waist-and-abdomen plate 2 are fixedly connected with one side of the two wing plates 3 respectively, the top and the bottom of the left and right sides of the waist-and-abdomen plate 2 are fixedly connected with triangular support blocks 4 arranged at equal intervals, one side of the triangular support block 4 close to the wing plates 3 is fixedly connected with the wing plates 3, reinforcing ribs 5 fixedly connected with the two triangular support blocks 4 are arranged on the two corresponding front and back triangular support blocks 4 in an inserting manner, a cross fixing plate 6 is fixedly connected between the four adjacent triangular support blocks 4 at the same side, the waist-and-shaped steel body 1 is formed by the waist-and two wing plates 3, the structures of the waist-and-abdomen plate 2 and the two wing plates 3 are reinforced and supported by the triangular support blocks 4 at the two, avoid causing the influence to the bearing capacity and the self intensity of H shaped steel main part 1, constitute the stiffening rib to the faying face of web waist board 2 and two pterygoid laminas 3 through 4 cross fixed plates 6 of triangular support piece, further improve H shaped steel main part 1 stability can, reduce H shaped steel main part 1 and receive external force to take place deformation, reduce the influence to the result of use of H shaped steel main part 1.

Further, two pterygoid lamina 3 have been seted up first cavity 7 and the second cavity 8 that link up by preceding to the back, two first cavities 7 are located between two second cavities 8, two third cavities 9 have all been seted up to two second cavities 8's the left and right sides, the third cavity 9 cross-section in the outside is less than the third cavity 9 cross-section in the inboard, through first cavity 7 on the pterygoid lamina 3, second cavity 8 improves pterygoid lamina 3's performance with third cavity 9, because the value of the bending resistance section coefficient Wt of same sectional area is hollow than solid big, make pterygoid lamina 3 have bigger load limit for ordinary H shaped steel, increase H shaped steel main part 1's result of use.

Further, the cross-sectional shape of first cavity 7 is triangle-shaped, the cross-sectional shape of second cavity 8 is the rectangle, the cross-sectional shape of third cavity 9 is trapezoidal, because the cross-sectional shape of first cavity 7 is triangle-shaped, the cross-sectional shape of second cavity 8 is the rectangle, thereby the cross-sectional shape of third cavity 9 carries out reasonable distribution for trapezoidal cross-section to pterygoid lamina 3 for the inside stress distribution of H shaped steel main part 1 is more even, avoids because the crack that the stress inequality leads to appears.

Furthermore, be one hundred and zero five degrees contained angles between the left and right sides of the relative one side of two pterygoid lamina 3 and abdomen waist board 2, through the contained angle that the relative one side of pterygoid lamina 3 and abdomen waist board 2 appear, increase the stability of pterygoid lamina 3 and abdomen waist board 2 structure, increase H shaped steel main part 1 bearing capacity.

Further, strengthening rib 5 is prestressing force stranded steel wire's transposition steel cable, prestressing force stranded steel wire's key feature is that intensity is high and relaxation performance is good, it is straight relatively when launching in addition, be fit for prestressed concrete or similar usage, have fine tensile strength, can restrict abdomen waist board 2 and two pterygoid lamina 3's deformation, simultaneously through strengthening rib 5 with H shaped steel main part 1 go up the even distribution of stress transmission of certain part to H shaped steel main part 1, when increasing H shaped steel main part 1 life, strengthen H shaped steel main part 1's self intensity.

Furthermore, the corners at the inner sides of the first cavity 7, the second cavity 8 and the third cavity 9 are all rounded, so that the possibility of fracture caused by less stress due to obvious corners at the back parts of the first cavity 7, the second cavity 8 and the third cavity 9 is avoided.

The working principle is as follows: the H-shaped steel main body 1 is formed by the belly-waist plate 2 and the two wing plates 3, the structures of the belly-waist plate 2 and the two wing plates 3 are reinforced and supported by the triangular supporting blocks 4 at the two sides of the belly-waist plate 2, the stable bearing performance of the H-shaped steel main body 1 is improved, and the prestressed steel strand is straight and upright when unfolded, is suitable for prestressed concrete or similar purposes and has good tensile strength, so that the deformation of the belly-waist plate 2 and the two wing plates 3 is limited by the reinforcing ribs 5 between the triangular supporting blocks 4, the influence on the bearing performance and the self strength of the H-shaped steel main body 1 is avoided, reinforcing ribs are formed on the junction surfaces of the belly-waist plate 2 and the two wing plates 3 by the cross-shaped supporting block 4 and the cross-shaped fixing plate 6 between the triangular supporting blocks 4, the stability of the H-shaped steel main body 1 is further improved, and, the influence on the use effect of the H-shaped steel main body 1 is reduced, the use performance of the wing plate 3 is improved through the first cavity 7, the second cavity 8 and the third cavity 9 on the wing plate 3, and the bending-resistant section coefficient Wt with the same sectional area is larger than that of the wing plate 3 which is solid, so that the wing plate 3 has larger load limit compared with the common H-shaped steel, and the use effect of the H-shaped steel main body 1 is improved.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an even H shaped steel of stress distribution, includes H shaped steel main part (1), its characterized in that: h shaped steel main part (1) divide into abdomen board (2) and two pterygoid lamina (3), the top and the bottom of abdomen board (2) respectively with two pterygoid lamina (3) relative one side fixed connection, the top of abdomen board (2) the left and right sides and the equal fixedly connected with in bottom triangular support piece (4) that the equidistance was arranged, one side and pterygoid lamina (3) fixed connection that triangular support piece (4) are close to pterygoid lamina (3), corresponding two around alternate on triangular support piece (4) and be provided with strengthening rib (5) rather than fixed connection, the homonymy is adjacent four fixedly connected with cross fixed plate (6) between triangular support piece (4).

2. The H-beam of claim 1 having a uniform stress distribution, wherein: two pterygoid lamina (3) are by preceding first cavity (7) and the second cavity (8) of seting up link up to the back, two first cavity (7) are located between two second cavities (8), two third cavity (9) have all been seted up to the left and right sides of second cavity (8), and the outside third cavity (9) cross-section is less than inboard third cavity (9) cross-section.

3. The H-beam of claim 2 having a uniform stress distribution, wherein: the cross section of the first cavity (7) is triangular, the cross section of the second cavity (8) is rectangular, and the cross section of the third cavity (9) is trapezoidal.

4. The H-beam of claim 1 having a uniform stress distribution, wherein: the left side and the right side of one side, opposite to the two wing plates (3), and the abdomen and waist plate (2) form a one-hundred-five degree included angle.

5. The H-beam of claim 1 having a uniform stress distribution, wherein: the reinforcing ribs (5) are stranded steel cables of prestress stranded steel wires.

6. The H-beam of claim 2 having a uniform stress distribution, wherein: the edges and corners at the inner sides of the first cavity (7), the second cavity (8) and the third cavity (9) are all subjected to fillet treatment.