An ultimate strength formula for the steel skin was developed to account for the post-local-buckling strength reserve. The strength of the filled-in concrete strength was proposed to account for the strength ratio of steel skin to filled-in concrete instead of 0.85 Fc or 1.0 Fc for the ...
It is well known that the ultimate compressive strength of concrete filled tubular stub-column is higher than that of the simplified evaluating value because of the confinement effect of infilled concrete. In this paper, It is compared the experimental results of other researchers with estimated one...
Concrete stress distribution in ultimate strength design An ultimate strength design theory of broad applicability is developed, based on an equivalent rectangular stress distribution in the concrete compression zone and in general accord with the Appendix to the 1956 ACI Building Code. The th... AH...
This study conducts an experimental investigation and formulates a finite element model and design equation to determine the ultimate strength of concrete-filled double-skin tubular (CFDST) short columns. These columns are equipped with intermittent welded plate stiffeners, and the welding is performed ...
concrete beams. Since then, the method has been used by several researchers (e.g. see [40], [41], [42]) to obtain simple formulae for the shear strength of beams and to comprehend the role of the geometric and mechanical parameters in the resisting truss mechanism of members subjected ...
Ultimate Strength and Design of Reinforced Concrete Beams in Torsion and Bending Since about ten years experimental and theoretical research into the behavior of reinforced and prestressed concrete beams subjected to torsion and combined torsion-bending-shear has been intensified world wide (see e. g....
Analysis of the results shows that the calculated flexural strength can be increased by 50% compared to that of unconfined columns defined by the code. 展开 关键词: reinforced concrete(RC)circular columns flexural capacity of normal section fiber-reinforced polymer (FRP confinement ...
Ultimate strengthConcrete-filled tubular flange girders (CFTFGs) are a composite member which replaces the flat-plate flange of the conventional I-girder with a concrete-filled tubular one. As a single axisymmetric girder, the bending, torsion, and warping geometric equations of curved CFTFGs, as...
In this paper, it has been definitely shown that the superposed strength is the sum of position vectors on those points of contact as interaction curves of the steel and the concrete have tangent lines which are parallel to each other. And, the superposed strength formula has been theoretically...
It was also determined that, increasing the concrete compressive strength and the FRP modulus of elasticity increases the beam ultimate flexural capacity significantly; however, the repaired beams are less ductile than the pre-repaired ... MT El-Mihilmy 被引量: 0发表: 1998年 加载更多来源...