Dynamic Analysis of Elastic-Plastic Frames

1964 ◽  
Vol 90 (2) ◽  
pp. 315-346 ◽  
Author(s):  
Arthur C. Heidebrecht ◽  
Seng-Lip Lee ◽  
John F. Flemming
Keyword(s):  
Dynamic Analysis ◽  
Elastic Plastic ◽  
Elastic Plastic Frames

Erratum for “Dynamic Analysis of Elastic-Plastic Frames”

1961 ◽  
Vol 87 (5) ◽  
pp. 109-109
Author(s):  
Arthur C. Heidebrecht ◽  
Seng-Lip Lee ◽  
John F. Flemming
Keyword(s):  
Dynamic Analysis ◽  
Elastic Plastic ◽  
Elastic Plastic Frames

Dynamic analysis of an offshore structure on an elastic-plastic foundation-soil system

1986 ◽  
Vol 2 (2) ◽  
pp. 101-123
Author(s):  
J.G.A. Munro ◽  
C.J. Cudworth ◽  
A.A. Rodger
Keyword(s):  
Dynamic Analysis ◽  
Offshore Structure ◽  
Foundation Soil ◽  
Soil System ◽  
Elastic Plastic

Closure to “Behavior of Elastic-Plastic Frames”

1969 ◽  
Vol 95 (11) ◽  
pp. 2513-2515
Author(s):  
Alfred Korn ◽  
Theodore V. Galambos
Keyword(s):  
Elastic Plastic ◽  
Elastic Plastic Frames

Deformation Analysis of Elastic-Plastic Frames

1972 ◽  
Vol 98 (10) ◽  
pp. 2247-2267
Author(s):  
Donald E. Grierson
Keyword(s):  
Deformation Analysis ◽  
Elastic Plastic ◽  
Elastic Plastic Frames

scholarly journals PLASTIC DEFORMATIONS OF STEEL FRAME: STATICS AND DYNAMICS

2010 ◽  
Vol 2 (3) ◽  
pp. 101-105 ◽  
Author(s):  
Vytautas Kargaudas ◽  
Nerijus Adamukaitis
Keyword(s):  
Dynamic Analysis ◽  
Cross Section ◽  
Axial Force ◽  
Bending Moment ◽  
Transverse Force ◽  
Steel Frame ◽  
Plastic State ◽  
Strain Diagram ◽  
Plastic Deformations ◽  
Elastic Plastic

When all deformations of a column are elastic, transverse deflections of the column depend on transverse force and axial displacements depend on axial force only. These classical dependences are unsuitable for elastic-plastic deformations. Plastic deformations develop in columns when steel frame is influenced by extreme action. When a steel column is in the elastic-plastic state, the distribution of elastic and plastic deformations in the cross-section depends on both the bending moment and compressing force. The ideal elastic-plastic material is assumed in this investigation (Prandtl stress – strain diagram). If the shape of the column section is double tee, flange width is neglected with respect to web height, but the area of the flange cross-section is assumed a constant. Single-sided or double-sided yield depends on the moment and force, and therefore curvature and the axial strain of the column can be calculated when yielding dependences are determined. Transverse and axial displacements of the highest point of the column are deduced by integration and depend on two arguments: bending force and axial force. These dependences are essentially non-linear, so linear approximations can be assessed for some vicinity of axial force and bending moment values. When axial force is a constant and transverse force increases, both axial and transverse displacements tend to increase. If transverse force is a constant and axial force increases, both displacements increases but dependence lines remain different and depend on cross-section shape parameter equal to the ratio of the flange area and the area of the whole cross-section. A distinguished feature of plastic deformations is dependence on the history of loading a frame of which can be selected in an arbitrary way by an investigator if a quasi-static solution is under examination. The loading of a frame and inertia forces have to be deduced if dynamic analysis is studied. Not only the ultimate result but also the way of approaching a plastic piston – plastic hinge is important. The bended and compressed column is the structure when inelastic dynamic analysis is really important.

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