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Showing 1 to 20 of 64 for “"Slenderness"”.
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The effect of slenderness ratio upon axial and eccentric buckling in sandwich panels
Thesis (B.S.)--Massachusetts Institute of Technology, Dept. of Building Engineering and Construction, 1948.
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Simultaneous effect of slenderness, spatially varying excitation and support flexibility on dynamics of rocking bridges
… interpretations of the result. The effect of slenderness on bridge responses with a rigid support was considered first. The result revealed complex girder-pier-footing interactions. Building upon these results, the subsequent experiments were performed on the bridge-soil system under …
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On the Effective Stiffness of Slender Concrete Masonry Walls
… at a low axial load eccentricity, even though slenderness effects are expected to contribute to out-of-plane failure. A potential alternative design procedure template is presented, whereby a wall is first categorized based on its expected failure mode and only then designed either as a wall …
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The instability of slender reinforced concrete columns. A buckling study of very slender reinforced concrete columns between the slenderness ratios of 30 and 79 Including essential creep investigations, and leading to design recommendations.
… reinforcements with lateral ties were cast. Slenderness rates, L A, were varied from 30 to 79. Special factors were obtained to relate the actual modulus of elasticity of concrete in columns at buckling failure to a knowledge of the initial modulus of elasticity of concrete in control …
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Experimental Evaluation and Analytical Modeling of Shear Bond in Composite Slabs
… model that relates the shear bond stress to slab slenderness, which can be used to estimate the shear interaction property for slabs with any slenderness, was developed. Finally, a finite element study was conducted to develop a simple modeling method that is suitable for analyzing composite slabs …
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Estabilidade local de painéis cilíndricos enrijecidos
… The effects due to stiffeners spacing and slenderness as well as modal interaction and inicial geometric imperfections are investigated. It is shown that the use of slender stiffeners as suggested by the orthotropic theory, can lead to interaction between local and overall modes resulting …
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FOOTING FIXITY OF BRIDGE PIER WITH END-BEARING PILE FOUNDATION
… The K value is used to check if the effect of slenderness needs to be considered for the column design. Moreover, the rotation of structural members is a major factor in determining the deflection of structures. The magnitude of structure deflection due to the rotation and elastic deformation …
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Influence of Diaphragm Flexibility on the Out -of -Plane Dynamic Response of Unreinforced Masonry Walls
… despite the intensity of the base motion and the slenderness of the wall. This was due to the formation of a hinge at the base of each wall; the hinge allowed each wall to remain stable while rocking and supporting substantial gravity loads. Experimental results are compared with those simulated …
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Modeling of Transient Response of an Elastic Beam With Flexible Supports and Variable-Location Impact
… parameters. Two beam specimens with difference slenderness were designed and examined under point contact/impact. A half-sine pulse excitation was applied through a mechanical shaker, and the deflection was captured by a high speed camera. Numerous test cases were conducted that varied pulse …
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An investigation of wood box columns to determine formulas for their design
… design. Constructional variables such as column slenderness; plank thickness, fastening, and arrangement; and the use of spacers for individual plank stiffening were studied as to their effects on column strength. The analysis shows that those formulas currently used for the design of other …
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Evaluation of Steel H-Piles with Localized Corrosion and Rehabilitation Using Friction-Type Bolted Steel Plates
… investigate the effects of parameters including slenderness of the corroded flange and web, slenderness of the pile, location and extent of the corroded region, and the magnitude of residual stresses. The results indicated that flange thickness reduction is a critical factor influencing the …
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Predicting Compression Failure of Fiber-reinforced Polymer Laminates during Fire
… applied stress with a non-dimensionalized slenderness ratio. This relationship relates the applied stress, slenderness ratio, and temperature of the laminate at failure and can be used to determine failure in design of FRP laminate structures. The intermediate-scale tests were also used to …
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Behaviour of elliptical tube columns filled with self-compacting concrete
… elliptical steel tube columns having large slenderness ratios were dominated by global buckling. Moreover, the composite columns possessed higher critical axial compressive capacities compared with their hollow section companions due to the composite interaction. However, due to the large …
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Structural behaviour of precast lightweight foamed concrete sandwich panel (PLFP) with shear truss connectors
… the effects of geometrical imperfection, slenderness ratio, thickness, and shear connectors toward its structural behaviour. From the results, it was found that when the rate of geometrical imperfection and slenderness ratio of PLFP panel increased, the ultimate load of PLFP panel …
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Axial compressive behaviour of FRP-confined high-strength concrete
… orientation, specimen end condition, specimen slenderness, concrete shrinkage, strain measurement method, FRP overlap and lateral prestress were investigated. The test specimens were manufactured with aramid FRP (AFRP), carbon FRP (CFRP) or high-modulus CFRP (HMCFRP) and their unconfined …
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Lateral buckling of steel I-section bridge girders braced by U-frames
… parameters in the BS5400 expression for beam slenderness seem inappropriate for lateral buckling of an I-section girder under U-frame restraint. These are the radius of gyration of the whole girder section and the ratio of overall depth of a girder to mean flange thickness. Instead, radius of …
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Seismic Behavior of concrete filled steel Tubular Built-up columns
… members with larger load eccentricity ratio and slenderness ratio, such as stadium, industrial buildings, bridge pier and pillar, and electrical transmission tower. However, the research is mainly focused on static performance, seldom research has been reported on the dynamic behavior of CFST …
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Behavior of concrete-filled pvc tube columns under axial load
… while it increase as the thickness of tube and slenderness ratio increased. The increase of the slenderness ratio led to decrease the ultimate strengths and the axial strain of CF-PVCT columns. A simulation using finite element software ANSYS v14.5 was conducted to validate the experimental …
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Dynamic Stability of Adobe Walls (Overturning, Shaking Table, Cracking, Rocking Model, Soil)
… variables: (1) type of ground motion, (2) slenderness (thickness/height ratio), (3) wall thickness. The specimen dimensions were in metres: 0.2 x 1.2 x 1.0, 0.2 x 1.2 x 1.4, 0.2 x 1.2 x 2.0, 0.4 x 1.2 x 2.0, 0.4 x 1.2 x 2.80. Five specimens were tested with a soft-soil ground motion (La …
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Viscous fluid sheets
… variations along the film. Exploiting the slenderness of the film, we assume that the transverse fluid velocity is small compared to the longitudinal one and perform a perturbation expansion to obtain the leading order equations when the center-surface that defines the coordinate system is …
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