CN113529564A

CN113529564A - High-toughness twisted steel for bridge building

Info

Publication number: CN113529564A
Application number: CN202110871741.7A
Authority: CN
Inventors: 胡文元
Original assignee: Jiangsu Hongtai Steel Co ltd
Current assignee: Jiangsu Hongtai Steel Co ltd
Priority date: 2021-07-30
Filing date: 2021-07-30
Publication date: 2021-10-22

Abstract

The invention discloses a high-toughness twisted steel bar for bridge construction, which comprises a main body, wherein fixed ends are arranged at the left end and the right end of the main body, a plurality of forward threads are arranged on the outer wall of the left end of the main body, a plurality of reverse threads are arranged on the outer wall of the right end of the main body, and thread teeth are arranged among the reverse threads, the forward threads and the fixed ends.

Description

High-toughness twisted steel for bridge building

Technical Field

The invention relates to a high-toughness threaded steel bar for bridge construction.

Background

The deformed bar is a so-called hot rolled ribbed bar, the deformed bar is a ribbed bar, also called ribbed bar, usually has 2 longitudinal ribs and transverse ribs distributed uniformly along the length direction, the appearance of the transverse ribs is spiral, herringbone and crescent-moon shape 3, the nominal diameter of the ribbed bar is equal to the nominal diameter of smooth steel bar with equal cross section, the nominal diameter of the bar is 8-50 mm, the ribbed bar bears the tensile stress in the concrete, the ribbed bar has larger bonding ability with the concrete due to the rib, thus can bear the external force better, the ribbed bar is widely used in various building structures, especially large, heavy, light thin wall and high-rise building structures, the deformed bar for prestressed concrete (also called finish rolling deformed bar) is a large diameter bar rolled with external thread on the whole bar, The high-strength high-dimensional-precision straight reinforcing steel bars and finish-rolled twisted reinforcing steel bars are widely applied to continuous beams and large frame structures in large-scale hydraulic engineering, industrial and civil buildings, highway, railway large-midspan bridges, nuclear power stations, ground anchors and other projects, and have the advantages of simple and convenient connection and anchoring, strong adhesion, safe and reliable stretching anchoring, convenient construction and the like, and the reinforcing steel bars are saved, and the area and the weight of components are reduced.

On the technical condition basis of the existing twisted steel, the application range and the structure of the steel bar still have a lot of deficiencies, the supporting strength of the twisted steel used by most bridges and the internal bonding strength of the steel bar are still insufficient, and the bearing strength of the bridges is limited to a certain extent.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides a high-toughness threaded steel bar for bridge construction.

The utility model provides a high tenacity twisted steel for bridge building, includes the main part, the left and right both ends of main part all be equipped with the stiff end, all be equipped with a plurality of forward screw on the outer wall of the left end of main part, all be equipped with a plurality of reverse screw on the outer wall of the right-hand member of main part, all be equipped with the thread tooth between reverse screw, forward screw and the stiff end.

As a further improvement, the fixed end consists of a main fixed block and a plurality of auxiliary fixed blocks.

As a further improvement, the four corners of the main fixed block are provided with auxiliary fixed blocks.

As a further improvement, clamping teeth are arranged between the adjacent auxiliary fixing blocks.

As a further improvement, the tops of the auxiliary fixing blocks are provided with convex blocks.

As a further improvement, the main body is in a quadrangular plum blossom shape.

Has the advantages that:

this device can effectual improvement twisted steel's stress intensity, adopt four corners quincunx type structural design, moreover, the steam generator is simple in structure, the modern design, the internal strength of twisted steel has been strengthened greatly, stress intensity has been promoted, this helicitic texture has increased twisted steel's friction surface simultaneously, make fixed effect better, application range and convenience that can effectual improvement twisted steel, simultaneously four corners quincunx type design makes the reinforcing bar more stable in the use, prevent to take place to slide, therefore, the clothes hanger is strong in practicability.

Drawings

Fig. 1 is a schematic view of the overall structure of a high-toughness reinforcing bar for bridge construction;

FIG. 2 is a schematic view of the general structure of the fixing end;

1. the main body 2, the reverse thread 3, the forward thread 4, the fixing end 5, the thread tooth 6, the latch 7 and the convex block.

Detailed Description

For the purpose of enhancing the understanding of the present invention, the present invention will be further described in detail with reference to the following examples and the accompanying drawings, which are only used for explaining the present invention and are not to be construed as limiting the scope of the present invention.

As shown in fig. 1-2, a high-toughness twisted steel for bridge construction includes a main body 1, a reverse thread 2, a forward thread 3, a fixing end 4, a thread tooth 5, a latch 6, and a protrusion 7.

The utility model provides a high tenacity twisted steel for bridge building, includes main part 1, the left and right both ends of main part 1 all be equipped with stiff end 4, all be equipped with a plurality of forward screw thread 3 on the outer wall of the left end of main part 1, all be equipped with a plurality of reverse screw thread 2 on the outer wall of the right-hand member of main part 1, all be equipped with thread tooth 5 between reverse screw thread 2, forward screw thread 3 and the stiff end 4, stiff end 4 comprises main fixed block, the vice fixed block of a plurality of, the four corners department of main fixed block all be equipped with vice fixed block, all be equipped with latch 6 between the adjacent vice fixed block, the top of vice fixed block all is equipped with lug 7, the shape of main part 1 is the quincunx in four corners.

During the use, adopt four corners quincunx's structural design, moreover, the steam generator is simple in structure, the modern design, twisted steel's internal strength has been strengthened greatly, the stress intensity has been promoted, this helicitic texture has increased twisted steel's friction surface simultaneously, make fixed effect better, application range and convenience that can effectual improvement twisted steel, simultaneously four corners quincunx's design makes the reinforcing bar more stable in the use, can effectively strengthen the bonding strength of reinforcing bar and concrete through the forward screw thread that sets up and reverse screw thread, promote the application range of reinforcing bar, therefore, the clothes hanger is strong in practicability.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. The utility model provides a high tenacity twisted steel for bridge building, its characterized in that, includes the main part, the left and right both ends of main part all be equipped with the stiff end, all be equipped with a plurality of forward screw thread on the outer wall of the left end of main part, all be equipped with a plurality of reverse screw thread on the outer wall of the right-hand member of main part, all be equipped with the thread tooth between reverse screw thread, forward screw thread and the stiff end.

2. A high-toughness threaded reinforcing steel bar for bridge construction according to claim 1, wherein said fixed end is composed of a main fixed block and a plurality of auxiliary fixed blocks.

3. The high-toughness threaded steel bar for bridge construction according to claim 2, wherein auxiliary fixing blocks are provided at four corners of each main fixing block.

4. The high-toughness threaded steel bar for bridge construction according to claim 3, wherein latches are provided between adjacent auxiliary fixing blocks.

5. The high-toughness threaded steel bar for bridge construction according to claim 2, wherein the top of each secondary fixing block is provided with a projection.

6. A high tenacity twisted steel for bridge construction as claimed in claim 1, wherein said body has a cross-sectional shape of a quadrangular plum blossom.