Definitions Bitewing radiograph: Parallel technique where the film shows the upper and lower teeth in occlusion. Blurred image: Decreased detail on a film due to patient‚ film‚ or x-ray source movement. Collimator cutoff: Not centering the x-ray beam on the film‚ causing
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There are 4 major types of bridges. We have a separate page for each type of bridge. Please go to one of the following pages. Beam - The beam type is the simplest type of bridge. The beam bridge could be anything as simple as a plank of wood to a complex structure. It is made of two or more supports which hold up a beam. Arch - In the arch type of bridge‚ weight is carried outward along two paths‚ curving toward the ground. Suspension/Cable-stayed - The deck (trafficway) of a suspension bridge
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which can be thought of as a very thin‚ deep beam. Some noteworthy examples of buildings that have the Diagrid incorporated are The Swiss Re building in London known as The Gherkin‚ The Hearst Tower in New York‚ The CCTV Headquarters in Beijing‚ The West tower in Guangzhou‚ The Capital Gate in Abu Dhabi. The Diagrid systems are the evolution of braced tube structures‚ since the perimeter configuration still holds for preserving the maximum bending resistance and rigidity‚ while‚ with respect to
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shearing force (SF) at any section of a beam represents the tendency for the portion of the beam on one side of the section to slide or shear laterally relative to the other portion. The diagram shows a beam carrying loads . It is simply supported at two points where the reactions are Assume that the beam is divided into two parts by a section XX The resultant of the loads and reaction acting on the left of AA is F vertically upwards and since the whole beam is in equilibrium‚ the resultant force
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8 4. Analysis 9 4.1 Guidelines for error analysis 9 5. Conclusions & Recommendations 9 6. References 10 ABSTRACT The aim of doing this experiment is to compare the transverse bending deflection of the tie bar and the theoretical values that obtain from the simplified formula and the exact formula when the eccentricity of the load is 75m‚ 55mm and 35mm. The experimental values of the deflection of the tie are obtained by reading
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reinforced concrete beam shown in Figure 1 carries an imposed live load of 12kN/m2 and a dead load of 12 kN/m2 as shown in the diagram. Given‚ fcu = 30 N/mm2‚ fy = 460 N/mm2‚ fy‚ links = 250 N/mm2. The beam is exposed to a mild condition. a) Determine whether the beam is singly or doubly reinforced beam. b) Determine the main reinforcement for the beam using a design chart. c) Determine the shear reinforcement for the beam. d) Check whether the deflection of the beam is acceptable.
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6. Deflection of a simply supported beam To find the slope and deflection of a simply supported beam with point load at the center and to prove the results mathematically 7. Deflection of a cantilever beam To verify the slope and deflection of a cantilever beam experimentally and theoretically. 8. Deflection of a overhanging beam To find the central deflection of overhanging arm beam and confirm the results theoretically 9. Shear
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3.4 Thermal Effect Shear strain In general‚ increase in temperature causes the atoms to vibrate more and makes average atomic spacing greater. Macroscopically‚ this will lead to dimension increase in solid: T + T +V T – T – V In an isotropic material‚ temperature change only introduces variation of direct (normal) strain. In other words‚ thermal deformation does not cause shear strain. where T0 is a reference temperature and = coefficient of thermal expansion (C)-1 Hooke’s
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Higher National Certificate Mechanical Principles Assignment Two Carl Jones Table of Contents Question 1a) 5 Q1bi) 6 Q1bii) 7 Q1biii) 10 Q1ci) 11 Q1cii) 12 Question 2a) 13 Question 3a) 15 Question 3b) 15 Question 3c) 18 Question 4a) 19 Question 4bi) 19 Question 4bii) 20 Question 4ci) 21 Question 4cii) 21 Graph 21 Question 4ciii) 22 Question 4civ) 22 Question 4d) 23 Question 1a) Hoop Stress (circumferential stress) is simply the stress due to radial pressure. The circumferential
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Contents Series Preface Preface Acronyms‚ Abbreviations and Symbols About the Author 1 Introduction Electromagnetic Radiation Infrared Absorptions Normal Modes of Vibration Complicating Factors 1.4.1 Overtone and Combination Bands 1.4.2 Fermi Resonance 1.4.3 Coupling 1.4.4 Vibration–Rotation Bands References 2 Experimental Methods 2.1 Introduction 2.2 Dispersive Infrared Spectrometers 2.3 Fourier-Transform Infrared Spectrometers 2.3.1 Michelson Interferometers 2.3.2 Sources and Detectors 2.3.3
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