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Showing 1 to 20 of 52 for “"mid-span"”.
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Morton Effect Induced Instability in Mid-Span Rotorâ Hydrodynamic Bearing Systems
… on the Morton Effect induced instability in mid-span rotor systems is presented. First, the mechanism study is conducted. The simplified rotor models with isotropic linear bearing supports are adopted for the derivation of analytical expressions. The threshold speeds of instability in simple …
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Experimental Evaluation of Composite Action of Steel Box Truss Towers in Flexure
… of two 20 foot tower segments spliced at mid span. Point loads were applied six feet from mid span in both directions. Load was applied as increments of mid span deflection until failure. The study included a literature review, construction, instrumentation, and testing of the specimens, …
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Behaviour of continuous concrete slabs reinforced with FRP bars. Experimental and computational investigations on the use of basalt and carbon fibre reinforced polymer bars in continuous concrete slabs.
… mm in depth. The simply supported slabs had a span of 2000 mm, whereas the continuous slabs had two equal spans, each of 2000 mm. Different combinations of under and over FRP (BFRP/CFRP) reinforcement at the top and bottom layers of slabs were investigated. The continuously supported BFRP and …
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Stall inception in high stage loading low pressure ratio transonic fans
… surface separation behind the shock around the mid-span of the mis-staggered blade passage has been found to trigger stall. The baseline fan geometry has a mid-loaded radial work distribution, so a combination of high work loading and high incidence made the suction surface boundary layer behind …
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Performance of Steel Fiber-Reinforced Concrete Beams Under Shock Tube Induced Blast Loading
… overall blast capacity, maximum and residual mid-span displacement, secondary fragmentation and damage control. Static results confirm the beneficial effect of fibers on improving the shear and flexural capacity of beams. Dynamic results show that use of steel fibers at a sufficient content …
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Fe Modeling In Support Of Vibration Based Damage Detection In Bridges
… an experimental representation of a three-span concrete bridge structure located at the entrance to the main campus of The University of Mississippi in Oxford. Equivalent beam and 3D finite element models are created of an experimental setup incorporating levels of damage simulated using …
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Serviceability Design of Long-Span Timber Beams Considering Semi-Rigid Beam-Column Connections
… adoption of engineered timber systems in long-span construction has intensified the need for accurate prediction and control of mid-span deflections at the serviceability limit state (SLS). Conventional timber design practice typically assumes idealised pinned supports in deflection …
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Lateral load distribution for steel beams supporting an FRP panel.
… ft-3.5 ft-2.5 ft. Stain gauges were mounted at mid-span of each beam to monitor the amount of load each beam was taking under a certain load. Linear variable distribution transformers (LVDT) were mounted at mid-span of each beam to measure deflection. Loads were placed at the center of the …
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Tip clearance and angle of attack effects upon the unsteady response of a vibrating flat plate in crossflow
… of tip clearance and angle of attack upon the mid-span unsteady pressure response of a vibrating flat plate was investigated experimentally. Unsteady pressure measurements were taken for a variety of incidence angles, vibration frequencies and tip clearances over a Mach number range of 0.2 to …
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Behaviour of continuous concrete T-beams reinforced with hybrid FRP/Steel bars
… The ratio of GFRP to steel reinforcement at both mid-span and middle-support sections was the main parameter investigated. The results showed that adding steel reinforcement to GFRP reinforced concrete T-beams improves the axial stiffness, ductility and serviceability in terms of crack width and …
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Bending behavior of concrete T-beams reinforced with glass fiber-reinforced polymer (GFRP) bars
… along the width of compressive flange at mid-span. Based on the test results and theoretical evaluations, design equations to predict bending behavior, deflection, effective flange width and crack-widths are developed.
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The vibration performance of vehicular bridges in the Maltese Islands
… traffic and wind. Testing was carried out at the mid-span of each bridge at three time intervals namely 07.00 - 8.30, 12.00 -13.30 and 17.00 -18.30. This procedure was carried out on both lanes of each bridge and performed over seven highway bridges in Malta. Results were then compared to the …
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The numerical modelling of composite floors exposed to fire
… have also been carried out for calculated mid-span deflections by this method and the published test results. The results show excellent correlation between the tests and the new method. A parametric study has carried out on floors with different boundary conditions when subjected to …
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Some Features of Tip Gap Flow Fields of a Linear Compressor Cascade
… pressure results on the lower end-wall and mid-span of the blade show huge pressure drop on the lower end-wall from the pressure side to the suction side of the blade and from mid-span to the lower end wall. The end-wall skin friction velocity is calculated from near-wall LDA data and …
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Reynolds stress measurements downstream of a turbine cascade
… settings. Traverses with a single hot-wire at mid-span near the blade row exit show very high levels of turbulence locally in the blade wake near the trailing edge which quickly lessen in magnitude downstream. The rotatable X-wire was used to obtain the Reynolds stresses on a measurement plane …
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Repair of Impact-Damaged Prestressed Bridge Girders Using Strand Splices and Fiber-Reinforced Polymer
… from overheight vehicles occurs around the mid-span and flexural strength dominated region of bridge girders. The cracking and failure moments for each test were evaluated and compared to predictions of the girder's behavior using AASHTO calculations, a moment-curvature diagram, and …
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Comparative Analysis of Serrated Trailing Edge Designs on Idealized Aircraft Engine Fan Blades for Noise Reduction
… were performed from the lower endwall to the mid-span of the blade. These showed that the mean streamwise velocity, turbulence kinetic energy and turbulence kinetic energy production in the tip leakage region were nearly the same for all four serrated blades as well as the baseline. The …
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Lateral-Torsional Buckling Instability Caused by Individuals Walking on Wood Composite I-Joists
… position displaced away from the wood I-joist mid-span, d) the critical load reduced as the initial lateral displacement of the wood I-joist increased and e) the wood I-joist mid-span was the critical point in the dynamic lateral-torsional buckling instability.
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Design of Floor Joists Manufactured via Large Scale Additive Manufacturing
… and test were in good agreement and the mid-span deflection was found to be well within accepted building standards. Key Words: 3D Printing, Floor Joists, Truss, Recycled Plastic
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Investigation of composite façade mullions
… extrusions with glass fibre reinforced polyamide acting as a thermal break joining the external and internal extrusions together. This research is focused on the behaviour of this type of thermal break composite façade mullions under quasi-static loadings. Literature survey was carried out. …
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