Device and method for eliminating welding stress of steel pipe ring beam by mechanical vibration

A technology of mechanical vibration and welding stress, which is applied in the field of steel structure welding, can solve the problem that the vibration wave energy of the vibration pickup cannot be transmitted, the clamping and positioning of the vibration pickup and the structural parts are difficult, and the reliability of the contact between the vibration pickup and the structural parts is difficult. Guarantee etc.

Active Publication Date: 2011-11-16
BAOSTEEL CONSTR
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Problems solved by technology

For non-box structural parts, especially for the treatment of large-scale steel pipe ring beams to eliminate welding stress after welding, there is no precedent for using vibration method to eliminate welding stress of large steel pipe ring beams. Due to the structure and shape of large steel pipe ring beams Due to the particularity of the vibration pickup and structural parts,

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  • Device and method for eliminating welding stress of steel pipe ring beam by mechanical vibration
  • Device and method for eliminating welding stress of steel pipe ring beam by mechanical vibration
  • Device and method for eliminating welding stress of steel pipe ring beam by mechanical vibration

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Embodiment Construction

[0025] Project overview: The main steel structure of the curtain wall of the Shanghai Center, the main component of the main steel structure is a steel pipe ring beam structure, and its main parameters are 60m in chord length and 5.8m in arch height. The pipe shaft sliding telescopic node and the steel pipe ring beam tie rod hanging lug plate are welded. The process of the inner ring steel pipe ring beam and the outer ring steel pipe ring beam is: Butt jointing of sliding expansion joints, welding, installation of welding tie rods and lug plates, and overall elimination of welding stress on the steel pipe ring beam 7 after welding.

[0026] refer to figure 1 , figure 2 , image 3 The device of the present invention comprises an upper pipe seat 1, a lower pipe seat 2, a steel pipe ring beam rest seat 3, a vibration pickup 4, a frequency control box 5 and a rubber foot 6, and the upper pipe seat 1 and the lower pipe seat 2 are all There is a semi-circular pipe collar 11, the...

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Abstract

The invention discloses a device and method for eliminating the welding stress of a steel pipe ring beam by mechanical vibration. The contact reliability problem of a vibration pickup and a structure member is solved by using a steel pipe ring beam vibration supporting seat and a vibration method, and a crystal tissue of a steel pipe ring beam welding joint is changed through the process of effectively transmitting the vibration wave energy of the vibration pickup to the structure member, thereby obtaining the purpose of weakening and eliminating the welding tress of the steel pipe ring beam structure member.

Description

technical field [0001] The invention relates to the aging of welding stress in the technical field of steel structure welding, in particular to a device and method for eliminating welding stress of a steel pipe ring beam by mechanical vibration. Background technique [0002] Relieving welding stress of steel structure parts is an indispensable link in the production process of steel structures, especially for large steel structures. At present, there are many commonly used methods to eliminate welding stress: manual hammering method; natural aging method; overall high temperature tempering treatment; local high temperature tempering treatment; ultrasonic vibration stress relief method and vibration aging stress relief method. Due to the high labor intensity and low efficiency of the manual hammering method; the natural aging method takes too long and takes up a large space; the high temperature tempering treatment requires large tempering equipment; and the vibration...

Claims

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Application Information

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IPC IPC(8): C21D10/00C21D9/08
Inventor 曹亚伟
Owner BAOSTEEL CONSTR
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