scholarly journals STUDS EFFECT ON BEHAVIOR OF LATERAL BUCKLING OF COMPOSITE STEEL BEAM

2012 ◽  
Vol 77 (681) ◽  
pp. 1773-1779
Author(s):  
Tetsu USAMI ◽  
Hirofumi KANEKO ◽  
Kenji YAMAZAKI
Keyword(s):  
Steel Beam ◽  
Lateral Buckling ◽  
Composite Steel

Shrinkage tests of two full-scale composite trusses

1992 ◽  
Vol 19 (2) ◽  
pp. 296-309 ◽  
Author(s):  
D. J. Laurie Kennedy ◽  
Anita Brattland
Keyword(s):  
Concrete Beams ◽  
Concrete Slab ◽  
Shrinkage Strain ◽  
Steel Beam ◽  
Restrained Shrinkage ◽  
Test Results ◽  
Linear Strain ◽  
Shrinkage Behaviour ◽  
Composite Section ◽  
Composite Steel

The shrinkage behaviour of two composite trusses with a span of 11.5 m was studied. Shrinkage measurements to determine the effects of slab shrinkage on truss deflections and member strains were recorded over periods of 65 and 85 days. A method is developed to compute shrinkage deflections, based on equilibrium of the shrinkage-induced forces at midspan, which gives excellent agreement with the test results. This method assumes a linear strain distribution through the depth and is based on the free shrinkage strain of the concrete and the average stress–strain characteristics of the concrete in tension under restrained shrinkage conditions as it drys, creeps, and eventually may crack as it is gradually loaded from the green state. The method is extended to composite steel-beam concrete-slab members. It is equivalent to Branson's "composite section method" provided that the correct values for the shrinkage strain and the effective modulus of elasticity of the concrete in tension are used in the latter. Key words: behaviour, composite steel–concrete beams, trusses, shrinkage deflections.

The Overall Optimization of Djoué Composite Steel-Concrete Bridge in the Congo (Brazzaville) National Road One Phase- II Project

2012 ◽  
Vol 256-259 ◽  
pp. 1520-1527
Author(s):  
Rui Hui Jia ◽  
Yun Wei Chen ◽  
Yuan Qing Wang ◽  
Liang Zong ◽  
Jun Li ◽  
...  
Keyword(s):  
Phase Ii ◽  
Optimization Design ◽  
Steel Beam ◽  
Concrete Bridge ◽  
Follow Up Study ◽  
Bridge Type ◽  
Congo Brazzaville ◽  
National Road ◽  
Composite Steel

In order to learn more about the composite steel-concrete bridge which the Djoué bridge of Congo (Brazzaville) National Road One Phase- II Project has selected, promote the design technologies of bridges and better understand and improve the relevant standards, The overall optimization design analysis of Djoué Bridge aiming at saving steel and improving bearing capacity is necessary. The Doctor Bridge was used in optimization of bridge type, concrete thickness and height of steel beam and they have been selected. It can provide technical references for the construction of the Djoué Bridge, the follow-up study of the composite steel-concrete bridge and the specification improvement.

Prestressed Composite Steel Beam Design

1973 ◽  
Vol 99 (3) ◽  
pp. 301-319
Author(s):  
Subhash C. Anand ◽  
Ahmed Talesstchi
Keyword(s):  
Steel Beam ◽  
Beam Design ◽  
Composite Steel

EXPERIMENTAL STUDY ON H-SHAPED STEEL BEAM WITH CONTINUOUS BRACING SUBJECTED TO END MOMENT

2017 ◽  
Vol 4 (1) ◽  
Author(s):  
Masae Kido ◽  
Mao Liu ◽  
Kazuaki Hoki ◽  
Yoichi Onomiya ◽  
Keigo Tsuda
Keyword(s):  
Test Specimen ◽  
Steel Plate ◽  
Rotation Angle ◽  
Local Buckling ◽  
Maximum Load ◽  
Steel Beam ◽  
Lateral Torsional Buckling ◽  
Lateral Buckling ◽  
Vertical Stiffener ◽  
Lateral Bracing

As for H-shaped beams, concrete floor slab and purlins can be considered as bracing if they have enough stiffness and strength. There are many studies about bracing against lateral torsional buckling. However, the effect of lateral bracing cannot be properly considered in the practical design currently. The purpose of this study is to show the effect of the lateral bracing and vertical stiffener experimentally. The test on the lateral buckling of H-shaped steel beam with a steel plate which is a continuous bracing is carried out. Parameters are the position of bracing and presence or absence of vertical stiffener. The steel plate is welded on the compressive flange or the tensile flange. The vertical stiffener may be considered as the bracing for lateral buckling however the effects of them are not clear. The vertical stiffener is set at the position where the lateral deformation is assumed largest. The lateral buckling and local buckling occurs in the test specimens without bracing and with continuous bracing on the tensile flange. The maximum strength of the test specimen with a vertical stiffener is 5% smaller than that of the test specimen without a vertical stiffener. However, the strength degradation of the test specimen with a vertical stiffener is smaller and the load is 90 % more than the maximum load when the rotation angle is 0.07 rad.

scholarly journals DEFORMATION PERFORMANCE OF COMPOSITE STEEL BEAM

2011 ◽  
Vol 76 (668) ◽  
pp. 1847-1854
Author(s):  
Tetsu USAMI ◽  
Hirofumi Kaneko ◽  
Kenji YAMAZAKI ◽  
Nobuo NAKAYAMA ◽  
Takeshi KATAYAMA
Keyword(s):  
Steel Beam ◽  
Composite Steel

Erratum: Inelastic lateral buckling of steel beam–columns

1987 ◽  
Vol 14 (5) ◽  
pp. 718-718
Author(s):  
P. E. Cuk ◽  
M. A. Bradford ◽  
N. S. Trahair
Keyword(s):  
Steel Beam ◽  
Lateral Buckling ◽  
Beam Columns

Inelastic lateral buckling of steel beam–columns

1986 ◽  
Vol 13 (6) ◽  
pp. 693-699 ◽  
Author(s):  
P. E. Cuk ◽  
M. A. Bradford ◽  
N. S. Trahair
Keyword(s):  
Structural Engineering ◽  
Design Method ◽  
Elastic Beam ◽  
Steel Beam ◽  
Lateral Buckling ◽  
Inelastic Buckling ◽  
Beam Columns ◽  
Moment Gradient ◽  
Key Words Beams ◽  
Good Agreement

A series of investigations of the inelastic lateral buckling behaviour of steel beam–columns is described. These originate from many previous studies of the elastic lateral buckling of beams. It was found that present methods of predicting the effects of moment gradient in elastic beam–columns are unnecessarily conservative, and it was concluded that many practical continuous beam–columns will have significant warping restraints.Fourteen inelastic lateral buckling tests were carried out on 9 continuous steel beam–columns. The results of these tests were compared with predictions made by a new and improved finite element computer method of analyzing inelastic buckling, and very good agreement was found. The analytical method was then used to develop a simple approximation for predicting the inelastic buckling of isolated beam–columns with unequal end moments, and a design method was proposed. Key words: beams, buckling, columns, flexure, residual stresses, steel, structural design, structural engineering, torsion.

Sign in / Sign up

Export Citation Format

Share Document