Weathering resistant steel structure and high-strength bolt anti-sliding connecting method based on press-in particles

Abstract

The invention discloses a weathering resistant steel structure and high-strength bolt anti-sliding connecting method based on press-in particles.Steel connecting plates, the press-in particles and high-strength bolts are included in the method.The method comprises the steps that by using the perpendicular loads of anti-sliding surfaces, the particles are pressed in the peripheries of bolt holes in advance to generate stable pits; then, the bolts are fastened to tightly clamp the particles and the pits, the anti-sliding surfaces are prevented from sliding, and thus the anti-sliding coefficient of contact surfaces is increased.The weathering resistant steel structure and high-strength bolt anti-sliding connecting method based on the press-in particles achieves the technical purposes that the anti-sliding coefficient of the contact surfaces is increased in fold; meanwhile, protection films of the weathering resistant steel contact surfaces are not damaged, corrosion resistance at joints is ensured, and the service life of the weathering resistant steel is ensured.Thus, the overall anti-sliding performance in connection is optimized.

Description

technical field [0001] The invention belongs to the field of civil engineering, and in particular relates to an anti-slip connection method for high-strength bolts of a weather-resistant steel structure based on pressed particles. Background technique [0002] As a stable and reliable connection method, high-strength bolt connection is widely used in building structures. While ensuring the good structural performance of steel structures, it provides great convenience for construction and installation, highlighting the high degree of industrialization and easy assembly of steel structures. Outstanding advantages are one of the key foundations for the wide application of ordinary steel structures. Among them, the anti-slip performance of the contact surface directly determines the pressure-bearing performance of the connection. The existing ordinary steel structure high-strength bolt connection friction surface treatment technology can significantly increase the anti-slip coe...

AI Technical Summary

Problems solved by technology

[0003] However, for weathering steel, there is a dense passivation film on its surface, and the processes that are effective for ordinary steel surface treatment, such as sandblasting, pickling, etc., are not effective for this passivation film.

If local treatment is carried out by mechanical means such as wire drawing, its protective film will be easily damaged, and its weather resistance and other characteristics cannot be taken into account, thereby reducing the service life

[0004] In addition, the existing high-strength bolt connection friction surface treatment technology cannot meet the greater demand for joint anti-slip, and there is still a large room for improvement in the anti-slip coefficient

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