A Self-Learning Manual - Institution of Engineers Mauritius

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A Self-Learning Manual Mastering Different Fields of Civil Engineering Works (VC-Q&A Method) Vincent T. H. CHU there is no major difference in bond compared with uncoated bars. 16. What is the purpose of skin reinforcement for deep beams? In BS8110, it states that secondary reinforcement should be provided for beams exceeding 750mm deep at a distance measured 2/3 depth from the tension face. Experimental works revealed that at or close to mid-depth of deep beams, the maximum width of cracks arising from flexure may be about two to three times larger than the width of the same crack at the level of surface where the crack originally forms. The presence of crack is undesirable from aesthetic point of view. Moreover, it poses potential corrosion problems to reinforcement of deep beams. To safeguard against these crack formation, skin reinforcement is designed on the sides of deep beams to limit the formation of flexural crack widths. Though the principal function of skin reinforcement is to control crack width, it may be employed for providing bending resistance of the section. 116
A Self-Learning Manual Mastering Different Fields of Civil Engineering Works (VC-Q&A Method) Vincent T. H. CHU 4. Module Three: Drainage and Sewage Works Objectives Element Description Objective No. Drains Design of Drains Match soffit DD1 Spigot pointing downstream direction DD2 Embankment/Trench condition DD3 Element of Drains Shape ED1 Bedding ED2 Trench ED3 Concrete surround ED4 Drain Type Flexible pipes DT1 Precast concrete pipes DT2 Box Culverts, Manholes and Catchpits Box Culvert Geotextile filter BC1 Joints BC2 Single-cell/Multiple-cell BC3 Inlet and Outlet BC4 Manholes Components M1 Manhole covers M2 Spacing M3 Channels Channels Joints C1 Freeboard C2 Access ramp C3 Stoplog C4 Outlet C5 Dams C6 Stilling basin C7 Flap valves C8 Penstock C9 Riprap Channel Construction method RC1 Sewers Sewers Precast concrete S1 Vitrified clay pipe S2 Sewer Manholes S3 Design of sewers Sediment deposition DS1 Pipe deflection DS2 117
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A Self-Learning Manual - Institution of Engineers Mauritius

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