concrete slab supported on a rectangular grid of beams. Such a grid of beams reduces the span of the slab and thus permits the designer to reduce the slab thickness. The distribution of floor loads on floor beams is based on the geometric configuration of the beams forming the grid. 1 3 Tributary area of columns A1‚ B2 and C1 shown shaded 2 Girders on all four sides Theoretical Tributary Areas 3 Theoretical Tributary Beam Areas 4 Theoretical Tributary Beam Areas
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8 Introduction: The deflections of a beam are an engineering concern as they can create an unstable structure if they are large. People don’t want to work in a building in which the floor beams deflect an excessive amount‚ even though it may be in no danger of failing. Consequently‚ limits are often placed upon the allowable deflections of a beam‚ as well as upon the stresses. When loads are applied to a beam their originally straight axes become curved. Displacements
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Transverse Vibration of Beam Lab Report Introduction This experiment aimed to study the forced damped transverse vibration of a beam and verify Dunkerley’s empirical formula. According to Dunkerley’s empirical formula‚ 1f2=1fb2+1fω2 where f referring to the natural frequency of heavy beam with central load fb referring to the natural frequency of heavy beam only fω referring to the natural frequency of light beam with central load M By using the results of light damping‚ Dunkerley’s
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torque (magnitude and direction) on the beam in Figure 2 about (a) an axis through O perpendicular to the page and (b) an axis through C perpendicular to the page. + 30 Nm‚ +36 Nm Figure 1 Figure 2 4. A 500-N uniform rectangular sign 4.00 m wide and 3.00 m high is suspended from a horizontal‚ 6.00-m-long‚ uniform‚ 100-N rod as indicated in Figure 3. The left end of the rod is supported by a hinge‚ and the right end is supported by a thin cable making a 30.0° angle
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PARTS OF CEILING Introduction A ’coupled’ roof is a conventional roof that is constructed on-site. It uses ceiling joists‚ hanging beams‚ strutting beams‚ struts‚ underpurlins‚ collar ties‚ rafters and ridgeboards. Ceiling joists -The ceiling joists have a double function: --they provide the structure onto which the ceiling is fixed --they are the member that connects or ties the lower ends of rafter couples (pairs). Therefore‚ they prevent the rafters spreading and causing the roof to
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Experiment AM1.4--Bending moments in a simply supported beam Student name JunJie Liu Student ID 1512042 Experiment Date 24 Nov 2014 Lab group Mech 7 Introduction In this lab report we show the basic methods of measuring bending moment at the “cut” assuming only simply supported beam with point loads (showed in figure 1) and illustrate the relationship among bending moment and distance between
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MECHANICAL ENGINEERING Beam Reactions OBJECT 1. To determine both the theoretical and actual support reactions of a simple vertically loaded beam‚ showing that the loadings on the supports are directly proportional to the distances of the loads from the supports; thus illustrating the principle of the moments of forces. 2. To determine the beam support reactions for a horizontal beam carrying vertical loads at positions across the span. APPARATUS Two support stands‚ beam of uniform round bar
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moment for a beam under various loads. Introduction and Background Theory Definition of a Beam Members that are slender and support loadings that are applied perpendicular to their longitudinal axis are called beams. Beams are important structural and mechanical elements in engineering. Beams are in general‚ long straight bars having a constant cross-sectional area‚ often classified as to how they are supported. For example‚ a simply supported beam is pinned at one end and roller-supported at the other
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are provided for applying loading to the beams. One set of dial gauges to 0.01 mm resolution‚ complete with mounting brackets are employed for the measurement of the beam deflection. A theory and experiment Work Sheet is provided for students to follow the appropriate procedure of operation and computation. Experimental Capabilities 1. To investigate the relationship between load‚ span width‚ height (depth) and deflection of a simply supported beam. 2. To ascertain the Coefficient of Elasticity
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simple basic components and members of a building viz.‚ Slabs‚ Beams‚ Columns and Footings. In order to design them‚ it is important to first obtain the plan of the particular building that is‚ positioning of the particular rooms (Drawing room‚ bed room‚ kitchen toilet etc.) such that they serve their respective purpose and also suiting to the requirement and comfort of the inhabitants. Thereby depending on the suitability; plan layout of beams and the position of columns are fixed. Thereafter‚ the loads
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