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Ultrasonic impact treatment device after welding of outer weld seam of U-rib of orthotropic deck slab

The technology of an orthotropic bridge and a post-processing device is applied in the field of ultrasonic impact processing device after U-rib external weld welding of an orthotropic bridge deck, which can solve the problems of easy fatigue performance and high residual stress, and avoid asymmetry. Influence, wide range of applications, effect of improving fatigue performance

Pending Publication Date: 2020-04-17
HARBIN INST OF TECH AT WEIHAI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention is aimed at the problem that the residual stress of the welding seam area at the joint between the top plate of the orthotropic bridge deck and the U rib is relatively high, which is prone to fatigue performance, and provides a post-weld ultrasonic wave for the outer weld of the U rib of the orthotropic bridge deck. The impact treatment device reduces the residual stress in the weld area, improves the tissue mechanism of the weld position, and improves the fatigue performance

Method used

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  • Ultrasonic impact treatment device after welding of outer weld seam of U-rib of orthotropic deck slab
  • Ultrasonic impact treatment device after welding of outer weld seam of U-rib of orthotropic deck slab
  • Ultrasonic impact treatment device after welding of outer weld seam of U-rib of orthotropic deck slab

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Embodiment Construction

[0032] Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0033] like figure 1 As shown, the orthotropic bridge deck 5 is provided with a plurality of units, and each unit is provided with a top plate 51, and U ribs 52 are welded on the top plate 51, and the top plates between the units are spliced ​​together, and the present invention is placed between the units of seams. The present invention is provided with working platform 6, is provided with two relative working groups on working platform 6, and each working group is provided with supporting mechanism 2, and fixing mechanism 3 is fixed on supporting mechanism 2, and ultrasonic impact device 4 is placed on the working On the fixing mechanism 3. The present invention is also provided with at least two sets of parallel driving mechanisms 1. The driving mechanism 1 works to drive the working group on the working platform 6 to move linearly along th...

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Abstract

The invention relates to an ultrasonic impact treatment device, and particularly relates to the ultrasonic impact treatment device after welding of an outer weld seam of a U-rib of an orthotropic deckslab. The ultrasonic impact treatment device solves the problem that the residual stress of a weld seam area at the joint of the top plate of the orthotropic deck slab and the U rib is high, and thefatigue performance is easy to generate. The ultrasonic impact treatment device is provided with a working platform, a working group is arranged on the working platform, a supporting mechanism is arranged on the working group, a fixing mechanism is fixed on the supporting mechanism, a driving mechanism is further arranged on the working group, and the driving mechanism is fixed on the working platform. The ultrasonic impact treatment device can be used for ultrasonic impact treatment of the weld seam area at the joint of the top plate of the orthotropic deck slab and the U rib.

Description

technical field [0001] The invention relates to an ultrasonic impact treatment device, in particular to an ultrasonic impact treatment device after welding of U-rib outer weld seams of an orthotropic bridge deck. Background technique [0002] The orthotropic bridge deck is welded by longitudinal stiffeners, transverse diaphragms and bridge deck roofs. It has the advantages of light weight and high strength, lightweight structure, high bearing strength, beautiful appearance, and rapid and convenient construction. It is widely used in large-scale construction in China. Span steel box girder orthotropic bridge deck structures. [0003] Due to the complex vertical and horizontal connections of different components of the orthotropic deck deck, long welds, and serious residual stress problems, the research results show that the orthotropic deck deck structures in service show fatigue cracks in different forms and at different positions. According to statistical analysis, the fat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21D10/00
CPCC21D10/00
Inventor 王苹杨海波钱宏亮
Owner HARBIN INST OF TECH AT WEIHAI