15. CORRECTION DUB TO TENSION. A heavy 30-m tape having across-sectional area of 0.05 cm² þas been standardized at atencion of 6) kg.If E=2.10 X 10º kg/cm?calculatethe elongation of the tape for ån increase in tension from 5.5kg to 20 kg.16. CORRECTION DUE TO TENSION. A steel tape is 30.0-m longunder a pull of 6.0 kg when supported throughout. It has across-sectional area of 0.035 cm² and is applied fullysupported with a 12-kg pull to measure a line whose re-corded length is 308.32 m. Determine the correct length ofthe line if E=2.1 X 106 kg/cm².17. CORRECTION DUE TO TENSION. A 30-m steel tape weighing1.75 kg is of standard length under a pull of 4.55 kg,supported for full length. This tape was used in measuringa line (found to be 1371.50 m) on smooth leyel ground undera steady pul11 of 8 kg. Assuming E=2.05 x 106 kg/cm²and thatthe unit we ight of steel is 7.9 Xx 10-3 kg/cm , determinethe following: cross-sectional area of the tape, correctionfor increase in tension for the whole length measured, andthe correct length of the measured line.18. CORRECTION DUE TO SAG. A 30-m steel tape weighs 1.5 kgis supported at its end points and at the 5 and 15-andmeter marks. If a pull of 8 kg is applied, determine thecorrection due to sag between supports and for one tapelength.19. CORRECTION DUE TO SAG. A 30-m steel tape weighing 0.04kg/mis constantly supported only at its end points, andused to measure a line with a steady pull of 8.5 kg. If themeasured 1ength of the line is 24 65.18 m, determine thecorrect length of the line.20. NORMAL TENSION. Determine the normal tension requiredto make a tape exactly 30.0 m between its ends when used inan unsupported mode, if the tape has a cross-sectional areaof 0.045 cm² and weighs 0.90 kg. Assume that the tape isexactly 30.0 m when supported throughout its length under astandard pull of 6.0 kg, and its modulus of elasticity is2.10 x 106 kg/cm².21. NORMAL TENSION. A 30-m steel tape supported at its endsweighs 0.03 kg/m and is of standard length under a pull of6.5 kg. If the elastic modulus of stee1 is 2.0 x 10 kg/cm?and its weight density is 7.9 X 10~³ kg/cm³, determine thetension at which the effect of sag will be eliminated bythe, elongation of the tape đue to increased tension.

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Answered: 15. CORRECTION DUE TO TENSION. A heavy…

15. CORRECTION DUE TO TENSION. A heavy 30-m tape having a cross-sectional area of 0.05 cm² þas been standardized at a of 6) kg. If E=2.10 X 10® kg/cm² tencion calculate the

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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