RU68533U1 - PILED TORQUE HOLLOW ROLLED-WELDED - Google Patents

Abstract

The utility model relates to the field of building metal structures and can be used in the structures of retaining walls of engineering structures for various purposes, including port and hydraulic structures, supports, bridges and foundation railings of buildings and structures. The task to which the creation of a utility model is directed is to create a design of a trough sheet pile rolling-welded base on the basis of trough type sheet pile piles using a lock that provides connection of the sheet pile walls, the design of which can significantly reduce the metal consumption of the sheet piling circuit and reduce time costs for construction and reduce energy consumption. The problem is solved by the fact that the trough sheet pile rolling-welded pile has a rolled sheet insert placed in a cut made along the vertical axis of symmetry of the tongue profile and connected to two halves obtained by a longitudinal weld along the cutting line, while the sheet insert is made from rolled welded steel with a limited carbon equivalent, which should not exceed 0.45%.

Description

The invention relates to the field of building metal structures and can be used in the structures of retaining walls of engineering structures for various purposes, including port and hydraulic structures, supports, bridges and foundation railings of buildings and structures.

Known used in construction is the tongue-and-groove welded tongue-and-groove profile, which is a tongue-and-groove welded tongue-and-groove profile (SHTS) with a lock providing connection of the tongue and groove wall elements developed by the Scientific Research Institute of Transport Construction (TsNIIIS OJSC) technical specifications TU 0925-003-01393674-95 as amended No. 3, Moscow, 2005

The disadvantage of this type of profile is the limited range of assortment, the limited possibility of use due to the significant cross-sectional area and, as a result, significant transportation costs when delivering the product to the construction site. In addition, the use of pipes as the main element of the profile significantly increases the cost of the product.

The technical solution closest in technical essence and the achieved result is a trough-type sheet pile, manufactured by the hot-rolled method, which is a L5-UM sheet pile profile with a lock structure that provides connection of sheet pile walls manufactured by Nizhniy Tagil Metallurgical Plant, technical specifications TU 14-102 -8-2003, entered into force on January 15, 2003.

The disadvantage of this pile design is the limited range of assortment produced by metallurgical enterprises,

which makes it impossible to effectively design sheet pile walls to the specified project parameters, in addition, the limited width of the sheet pile sheet significantly increases the metal content of the sheet pile circuit, increases the construction time and energy consumption.

The task to which the creation of a utility model is directed is to create a design of a trough sheet pile rolling-welded base on the basis of trough type sheet pile piles using a lock that provides connection of the sheet pile walls, the design of which can significantly reduce the metal consumption of the sheet piling circuit and reduce time costs for construction and reduce energy consumption.

The problem is solved by the fact that the trough sheet pile rolling-welded pile has a rolled sheet insert placed in a cut made along the vertical axis of symmetry of the tongue profile and connected to two halves obtained by a longitudinal weld along the cutting line, while the sheet insert is made from rolled welded steel with a limited carbon equivalent, which should not exceed 0.45%.

A distinctive feature of the proposed design is a more efficient use of steel. At the moment of resistance, trough sheet piles of rolled-welded piles have a 1.25-fold more rational distribution of metal in the wall section than hot-rolled piles, on the basis of which they are made. The possibility of using various rolling profiles in the design, the width and thickness of the sheet inserts allows the selection of the effective section with the specified strength parameters.

In addition, the compact design allows the efficient use of vehicles to deliver the product to the place of their application, does not require new types of equipment and machinery during installation and installation, and allows the use of traditional technologies. Besides,

the wide range of assortment of the proposed piles during the design work for the construction allows for the design of sheet piles with specified parameters, and the developed width of the pile due to the sheet insert reduces the number of cycles for inserting into the lock and dipping sheet piles (energy savings of 1.8 ÷ 3.2 times, reduction of construction time by 2.6 ÷ 3.8 times).

The invention is illustrated in the drawing, where Fig. 1 shows a pile trough sheet pile rolling-welded.

The roll-welded trough sheet pile contains an insert 1, on the side walls of which two halves of a tongue-and-groove profile 2, embroidered along the vertical axis of symmetry, are welded.

An example of a specific implementation is presented on page 4.

An example of a specific implementation:

The pile is made by welding on both sides to an insert from a strip 500 mm wide and 20, 22 and 25 mm thick previously rolled along the longitudinal axis of the rolled pile of the trough profile “Larsen-5” from 16KhG steel with an insert of a strip from 17G1S steel and a total length of pile 24 m. The symbol of the trough sheet pile rolling-welded piles: KShPS 3170 / "Larsen 5" -16HG / 17G1S-24.0.

The parameters of KShPS piles made on the basis of rolling piles of the trough profile “Larsen-5” are presented in table 1

Table 1 Profile Sizes, mm Single profile 1 linear meter of wall h ₀ b _p t ₁ Area cm ² Weight 1 m, kg Specific steel consumption per 1 m ^{2 of} wall, kg Inertia moment J ₀ , cm ⁴ Resistance moment W ₀ , cm ³ The efficiency indicator of the use of steel E _w at the moment of resistance cm ³ / kg Larsen 5 (basic) 172 425 21 127.40 100.00 253.3 48830 2840 12.1 KShPS 3020 / Larsen 5 insert (20 × 500) 172 920 twenty 227.40 180.29 196.0 52095 3020 15.4 KShPS 3170 / "Larsen 5" insert (22 × 500) 172 920 22 237.40 188.22 205.0 54573 3170 15,5 KShPS 3380 / "Larsen 5" insert (25 × 500) 172 920 25 252.40 200.12 218.0 58169 3380 15,5

In terms of the efficiency of using steel E _w at the moment of resistance, trough sheet piles of rolled-welded piles of about 1.25 have a more rational metal distribution in the wall section than the hot-rolled Larsen-5 piles based on which they are made.

Claims (2)

1. The pile trough sheet pile is welded, which is a trough sheet pile profile rolling profile with a lock providing connection of the sheet pile wall elements, characterized in that the sheet pile has a sheet metal insert placed in a cut made along the vertical axis of symmetry of the sheet pile profile and connected with two halves obtained along the cut line by a longitudinal weld. 2. Piled sheet pile sheet welded according to claim 1, characterized in that the sheet insert is made of rolled welded steel with a limited carbon equivalent, which should not exceed 0.45%.