RU43939U1 - STRUCTURE STRENGTHENING FOR THE TERMINAL PIPELINE TRANSITION WITH CONSOLE SUPPORTS, INCREASED SPAN - Google Patents

Abstract

To the description of the utility model "The device for strengthening the elevated pipeline passage with cantilevered supports, increased span." The proposed utility model relates to the construction of pipelines. The objective of the utility model is to reduce bending stresses in the working pipeline, increase the length of the span to be blocked, while reducing the complexity of the work and ensuring their safety. To increase the overlapping span, the support structure consists of two trusses: the lower and upper. The lower truss, which looks like a right-angled triangle with a strut, is reinforced by another upper truss, and the upper truss, which looks like a right-angled triangle without a brace, forms a cantilever structure and rests on the lower one, the guy line of which is fixed to the pile and simultaneously on the anchor plate. The working pipeline rests on the cross members of two parallel trusses. The entire support is installed outside the prism of the collapse of the soil.

Description

The device is intended for the construction of pipelines and can be used to strengthen pipelines in places of transitions through natural or artificial obstacles, as well as to increase the length of the span to be blocked.

There is a known construction of reinforcing a beam transition scheme, including a pipeline with welding to the pipes of additional elements of rolled metal in the upper part of the pipes, held in the design position using pile supports [1].

The disadvantage of this design is the impossibility of its installation in places where coastal collapse is possible.

Another technical method is a pipeline crossing, reinforced with an additional lash located above the working pipeline, which relies on the same supports as the working pipeline [2]. The working pipeline is suspended to an additional whip.

The purpose of the utility model is to increase the length of the span to be covered, while reducing the complexity of the work and ensuring the safety of their implementation.

This goal is achieved by the fact that in the strengthened transition outside the prism of the collapse of the soil, a support is installed in the form of a triangular truss, having the form of a rectangular triangle with a strut, which is reinforced by another upper truss. The upper truss, which looks like a right-angled triangle without a strut, forms a cantilever structure and rests on the lower truss, the guy line of which is fixed on the pile and at the same time on the anchor plate. The simultaneous fastening on the pile and the guy anchor plate performs a combined function: holding the upper truss and the entire structure. The working pipeline rests on the cross members of two parallel trusses.

The whole set of structural elements described above forms a new device, which allows to increase the span to be covered and to increase its operational qualities. And also provides a reduction in the complexity of work and ensuring the safety of their implementation. And guying performs a combined function, thereby reducing material consumption.

In Fig.1 presents a General diagram of an elevated pipeline crossing with reinforcing elements, Fig.2 - transition plan.

The proposed reinforcement device consists of rack 1, descending struts 2n and 2b, ascending struts 3b and 3n, beams 4, anchor 5, piles 6, crossbars 7. The supporting part of the structure is located on the banks of the obstacle beyond the collapse prism. The device is located on both sides of the river. The device is supported by a reinforced working pipeline 8. The device is installed behind the collapse prism 9.

The proposed device operates as follows. The force from the impact of the working pipeline 8 is transmitted through the cross-beams 7 to the lower truss, pile 6 and anchor 5.

The positive effect of the proposed design:

1. An increase in the overlapping span while maintaining the carrying capacity of the pipeline.

2. The installation location on the banks of the river, behind the prism of the collapse, while there is no installation work in the riverbed, thereby reducing the complexity of the work and ensuring the safety of their implementation.

Information sources.

1. I.P. Petrov, V.V. Spiridonov. Overhead installation of pipelines. M: Nedra, 1973 (Fig. 5.20 p. 100)

2. Guidance on the selection of rational design solutions for elevated crossings of trunk pipelines. P 477-82. M, 1984 (Fig. 192 p. 28)

Claims (1)

A device for strengthening an overhead pipeline passage with cantilever supports, an increased span, including supporting and supporting elements of the working pipeline, characterized in that the fundamental elements are located on the banks of the obstacle outside the prism of the collapse of the shores, and in the reinforced transition outside the prism of the collapse of the ground, a support is installed in the form a triangular truss, which is reinforced by another upper truss, and the upper truss, having the form of a right-angled triangle without strut, forms nsolnuyu design and is supported on the bottom, which brace is fixed to the pile and simultaneously on the anchor plate, and the working line based on the cross of two parallel truss.