Fabrication of a double-wall vacuum vessel model of H type steel beam for ITER

Based on the experiments of joint with exterior diaphragms between concrete-filled square steel tubular column and H-type steel beam under cyclic loading, with appropriate material stress-strain relations and failure criteria, the mechanical properties of this type of joint were researched by using ANSYS,finite element analyses were conducted under cyclic loading, the hysteretic and framework curves of this type joint between test and theoretical were researched. The study results showed that all specimens have good ductility and energy dissipation capacity. The story angle drift ductility ratios areμ=3.07~3.66,the elastic and elastic-plastic story angle drift are Φy=0.0041~0.0047 and Φu=0.0124~0.0172,and the equivalent viscous damping coefficients are he=0.26~0.35,which meet the needs of the current code for seismic design of building.

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Stress analysis of a double-wall vacuum vessel for ITER

[Proceedings] The 14th IEEE/NPSS Symposium Fusion Engineering ◽

10.1109/fusion.1991.218781 ◽

2002 ◽

Cited By ~ 1

Author(s):

D.L. Conner ◽

D.E. Williamson ◽

B.E. Nelson

Keyword(s):

Stress Analysis ◽

Vacuum Vessel ◽

Double Wall

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Technique for Construction of the Cap Beam of the Door-Shape Piers of an Overpass Transversal to the Contact Wire of an Existing Railway

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.178-181.1596 ◽

2012 ◽

Vol 178-181 ◽

pp. 1596-1600

Author(s):

Xin Min Xie

Keyword(s):

Intellectual Property ◽

Construction Method ◽

The State ◽

Railway Track ◽

Normal Operation ◽

Steel Beams ◽

Steel Beam ◽

Contact Wire ◽

Type Steel ◽

Electric Railway

In the construction of an overpass transversal to an existing electric railway, when the overpass pier is door-shaped, and, when the clearance height from the bottom of the door-shaped pier cap beam to the contact wire electrified body is too small to use steel beam or I-beam for holding the formwork and meet the safety need prescribed by the Ministry of Railways, an innovative construction method was employed, in which D-type steel beams, originally used for railway track reinforcement, was lifted to get across the contact wire and the catenary from above with a gap more than 33.8cm, resting on the top surface of temporary buttress, and letting stocky horizontal beams hold the formwork of cap beam, so as not to affect the normal operation of the existing electric railway. This innovative technique has been granted patent for invention by the State Intellectual Property Office.

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