Single-tube beam capable of releasing temperature stress and suitable for transformer substation continuous rigid frame

Abstract

The invention discloses a single-tube beam capable of releasing temperature stress and suitable for a transformer substation continuous rigid frame. The single-tube beam capable of releasing temperature stress and suitable for the transformer substation continuous rigid frame solves the problem that due to accumulation of stress on a single-tube beam in the length direction, an end supporting foundation cracks. The single-tube beam capable of releasing temperature stress and suitable for the transformer substation continuous rigid frame comprises a single tube (2), an extending single tube (2) and a connecting tube (3), the left end of the connecting tube (3) is connected into a right end tube of the extending single tube (1) in a sleeved mode, the right end of the connecting tube (3) is movably connected into a left end tube of the single tube (2) in a sleeved mode, an lubrication grease layer (11) is arranged between the outer side wall at the right end of the connecting tube (3) and the tube inner side wall at the left end of the single tube (2), single-end bolts (8) are arranged between an extending single tube flange (6) and a single tube flange (7) in a penetrating mode, compression springs are arranged at the two ends of the single-end bolt (8) respectively, and a spacing seam (15) is formed between the side surface of a left end port of the extending single tube (1) and the side surface of a left end port of the single tube (2). The single-tube beam capable of releasing temperature stress and suitable for the transformer substation continuous rigid frame is particularly suitable when the continuous rigid frame needs to be lengthened during expanding of a transformer station.

Description

technical field [0001] The invention relates to a single-pipe beam, in particular to a continuous rigid frame single-pipe beam of a substation. Background technique [0002] At present, in the high-strength steel pipe beam-column structure of substations, the single-pipe beam and the frame column are usually connected by a fixed structure to form a continuous rigid frame. End braces are arranged at the outer end of the continuous rigid frame. The pillar foundation is fixedly connected by anchor bolts. Generally, the length of the continuous rigid frame for outgoing lines of 220kV substation is less than or close to 100 meters. When the substation is expanded, the continuous rigid frame needs to be lengthened. The extended single-tube beam and the original single-tube beam are fixedly connected together by flanges, and a new end support foundation and end support columns are set at the outer end of the extended single-tube beam. The length of the continuous rigid frame exce...

AI Technical Summary

Problems solved by technology

[0003] The invention provides a substation continuous rigid frame single-tube beam that can release temperature stress, and solves the technology that the accumulation of stress in the length direction of the single-tube beam causes the unstability of pulling out on the end support foundation

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