PDF vdoc.pub_statics-and-strength-o X + File C:/Users/baude/Downloads/Important%20Files/EGR%20254/vdoc.pub_statics-and-strength-of-materials.pdf C Google M Gmail Electronics, Cars, Fa... Pandora One - Liste... My TurboTaxⓇ - G... PROBLEMS 15.25 A cantilevered beam is 5 m long and consists of a W200 x 100 steel member. If a 90 kN concentrated load is applied at a point 1.5 m from the beam's free end, use superposition techniques to find (a) deflection of the free end caused by the beam's own weight, and (b) de- flection of the free end caused by the concentrated load. 15.26 When the attic above a ceiling is used for storage, nominal 2 × 8 simply supported ceiling joists spaced 24-in. apart are each assumed to carry a uniformly dis- tributed load of 80 lb/ft. If the ceiling is plastered, maximum deflection of the joists is limited to 1/360th EasyBib: Free Biblio... of their length to prevent cracking of the plastered sur- face. Using superposition, find the maximum allow- able span for Southern pine joists based on this deflection requirement. GE News Homebanking 15.27 One nominal 2 x 6 wooden member 10 ft long acts as a simply supported beam and carries a distributed load of 80 lb/ft along its entire length. Maximum deflection of the beam must be limited to 1/240 of its span. Select the lowest grade of MSR or MEL lumber that is suitable for this loading. a. b. If the beam is modified to consist of two 2 × 6s placed side by side, does your choice of grade from part (a) change? Type here to search 15.28 A nominal 2 x 8 wooden beam 12 ft long carries a 900-lb concentrated load placed 4 ft from the right- hand support. If the maximum deflection of this beam must not exceed 1/240 of its span, specify the lowest grade of MSR or MEL lumber that may be used. 15.29 A simply supported 89 X 356 wooden I-joist (see Table A.13 of the Appendix) is 6.5 m long and carries a uniformly distributed load of 2.0 kN/m along its en- tire length. If the modulus of elasticity for the wood in this joist is 14.0 GPa, find the deflection at the joist's midpoint. 15.30 The seating in a bus station consists of two vertical posts (A-B and C-D) bolted to the floor and a chair rail (B-C) supporting three thermoplastic seats as shown. For easy removal to clean or repair this seat assembly, the rail is pinned to its posts at B and C. All supporting members are 2-in.-square steel tubes with a 1/8-in. wall thickness. If each of the three seats is oc- cupied by a 200-lb person, find (a) the compressive stress in post A-B and C-D, (b) the maximum bend- & Deflection of Beams Due to Bending 377 In Probs. 15.39 through 15.44, use Table A.14 of the Appen- dix and the method of superposition to determine the de- flection at the middle of the simply supported beam shown in the figure. Assume that El is constant and neglect the weight of the beam. 15.39 Use the figure for Prob. 15.13. 15.40 Use the figure for Prob. 15.14. 15.41 Use the figure for Prob. 15.15. 15.42 Use the figure for Prob. 15.16. 15.43 Use the figure for Prob. 15.17. 15.44 Use the figure for Prob. 15.18. 15.7 BEAM DEFLECTIONS USING COMPUTER SOFTWARE A glance at the superposition formulas in Table A.14 of the A W CAD ? milConnect TAP O 43°F 7:14 PM 4/2/2024 + C PDF vdoc.pub_statics-and-strength-o X Google Gmail + File C:/Users/baude/Downloads/Important%20Files/EGR%20254/vdoc.pub_statics-and-strength-of-materials.pdf Electronics, Cars, Fa... My TurboTax®-G... EasyBib: Free Biblio... G= News Homebanking milConnect TAP Type here to search Pandora One - Liste... wwwwwways puno prowa supporting members are 2-in.-square steel tubes with a 1/8-in. wall thickness. If each of the three seats is oc- cupied by a 200-lb person, find (a) the compressive stress in post A-B and C-D, (b) the maximum bend- ing stress in chair rail B-C, and (c) the deflection of rail B-C at its midpoint. 200 lb 200 lb 200 lb 14 in. 22 in. 22 in. 14 in. 200 1/8 in. 2 in. 2 in. USING COMPUTER SOFTWARE A glance at the superposition formulas in Table A.14 of the Appendix should convince you that, except for relatively simple beam loadings, it can be a formidable task either to compute the deflection at a specific point or to locate the point of maximum deflection on a beam. One powerful tool that can help with these calculations is a type of computer program known as a spreadsheet. Such prepackaged software is available for all types of personal computers, and most versions sold under various brand names differ only slightly in their program commands and operations. As it appears on a computer screen, a spreadsheet has two important elements: an array of boxes (called cells) arranged in rows and columns such as those found in the business ledgers used by accountants and bookkeepers, and some type of editing bar (usually a separate line or box located at the top of the computer screen) by which the entries on a spreadsheet may be specified or defined. As shown in the abbreviated spreadsheet of Fig. 15.22, columns are com- monly lettered from left to right, while rows are numbered O + PROB. 15.30 In Probs. 15.31 through 15.38, use Table A.14 of the Appen- dix and the method of superposition to determine (a) the maximum deflection, and (b) the slope at the free end of the cantilever beam shown in the figure. Assume that EI is con- stant and neglect the weight of the beam. 15.31 Use the figure for Prob. 15.1. 15.32 Use the figure for Prob. 15.2. 15.33 Use the figure for Prob. 15.3. 15.34 Use the figure for Prob. 15.4. 15.35 Use the figure for Prob. 15.5. 15.36 Use the figure for Prob. 15.6. 15.37 Use the figure for Prob. 15.7. 15.38 Use the figure for Prob. 15.8. Editing Bar B C D 1 2 3 4 Cell C2 ! Cell D4 5 Cell A5 FIGURE 15.22. The screen displayed for a typical spread- sheet contains two important elements: an editing bar and cells, or boxes, arranged in lettered columns and numbered rows. As indicated by the three entries on the partial spread- sheet shown here, the location, or address, of any cell can be designated using its column letter and row number. A W CAD ? 43°F 7:15 PM 4/2/2024 C PDF vdoc.pub_statics-and-strength-o X Google Gmail + File C:/Users/baude/Downloads/Important%20Files/EGR%20254/vdoc.pub_statics-and-strength-of-materials.pdf Electronics, Cars, Fa... Pandora One - Liste... My TurboTax® - G... maximum deflection of the joists is limited to 1/360th EasyBib: Free Biblio... from part (a) change? GE News Homebanking milConnect TAP Type here to search 15.28 A nominal 2 x 8 wooden beam 12 ft long carries a 900-lb concentrated load placed 4 ft from the right- hand support. If the maximum deflection of this beam must not exceed 1/240 of its span, specify the lowest grade of MSR or MEL lumber that may be used. 15.29 A simply supported 89 X 356 wooden I-joist (see Table A.13 of the Appendix) is 6.5 m long and carries a uniformly distributed load of 2.0 kN/m along its en- tire length. If the modulus of elasticity for the wood in this joist is 14.0 GPa, find the deflection at the joist's midpoint. 15.30 The seating in a bus station consists of two vertical posts (A-B and C-D) bolted to the floor and a chair rail (B-C) supporting three thermoplastic seats as shown. For easy removal to clean or repair this seat assembly, the rail is pinned to its posts at B and C. All supporting members are 2-in.-square steel tubes with a 1/8-in. wall thickness. If each of the three seats is oc- cupied by a 200-lb person, find (a) the compressive stress in post A-B and C-D, (b) the maximum bend- ing stress in chair rail B-C, and (c) the deflection of rail B-C at its midpoint. Bo 200 lb 200 lb 200 lb 14 in. 22 in. 22 in. 14 in.→ °C Deflection of Beams Due to Bending 377 In Probs. 15.39 through 15.44, use Table A.14 of the Appen- dix and the method of superposition to determine the de- flection at the middle of the simply supported beam shown in the figure. Assume that EI is constant and neglect the weight of the beam. 15.39 Use the figure for Prob. 15.13. 15.40 Use the figure for Prob. 15.14. 15.41 Use the figure for Prob. 15.15. 15.42 Use the figure for Prob. 15.16. 15.43 Use the figure for Prob. 15.17. 15.44 Use the figure for Prob. 15.18. 15.7 BEAM DEFLECTIONS USING COMPUTER SOFTWARE A glance at the superposition formulas in Table A.14 of the Appendix should convince you that, except for relatively simple beam loadings, it can be a formidable task either to compute the deflection at a specific point or to locate the point of maximum deflection on a beam. One powerful tool that can help with these calculations is a type of computer program known as a spreadsheet. Such prepackaged software is available for all types of personal computers, and most versions sold under various brand names differ only slightly in their program commands and operations. As it appears on a computer screen, a spreadsheet has two important elements: an array of boxes (called cells) arranged in rows and columns such as those found in the business ledgers used by accountants and bookkeepers, and & A W CAD ? O + 43°F 7:15 PM 4/2/2024 C PDF vdoc.pub_statics-and-strength-o X Google Gmail + File C:/Users/baude/Downloads/Important%20Files/EGR%20254/vdoc.pub_statics-and-strength-of-materials.pdf Electronics, Cars, Fa... Pandora One - Liste... My TurboTaxⓇ - G... EasyBib: Free Biblio... G= News Homebanking milConnect - TAP 83 0.61438 83.25 0.61445 83.5 0.61450 83.75 0.61454 84 0.61457 84.25 0.61459 84.5 0.61460 84.75 85 0.61460 0.61459 Type here to search PROBLEMS In Probs. 15.45, through 15.47, use a spreadsheet to locate the point of maximum deflection for: 15.45 The same beam and load as Example 15.17 but with a concentrated load of 800 lb added at the beam's mid- point. 15.46 The same beam and load as Example 15.17 but with an additional uniformly distributed load of 80 lb/ft along the entire beam length. 15.47 The same loading as Prob. 15.18 for a W6 X 9 steel member. (Neglect the beam's own weight.) 15.8 STATICALLY INDETERMINATE BEAMS BY THE SUPERPOSITION METHOD Statically indeterminate beams, beams for which there are more reactions than can be determined by the equations of equilibrium, can be solved by the superposition method. The following examples will illustrate the method. Deflection of Beams Due to Bending 383 Example 15.18 Determine the reactions for the statically indeterminate beam shown in Fig. 15.29(a). A W CAD ? 43°F O 7:16 PM 4/2/2024 +/n INSTRUCTIONS Need to do problems 15.26, 36, 40, 44 & 46 in chapter 15. Book is attached all the question are in book Homework format is also attached

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PDF vdoc.pub_statics-and-strength-o X + File C:/Users/baude/Downloads/Important%20Files/EGR%20254/vdoc.pub_statics-and-strength-of-materials.pdf C Google M Gmail Electronics, Cars, Fa... Pandora One - Liste... My TurboTaxⓇ - G... PROBLEMS 15.25 A cantilevered beam is 5 m long and consists of a W200 x 100 steel member.