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Consider the following statements for the design of a laced column: 1) In a bolted construction, the minimum width of the lacing bar shall be three times the nominal diameter of the end bolt. 2) The thickness of the flat of a single lacing system shall be not less than one-fortieth of its effective length 3) The angle of inclination of the lacing bar should be less than 40° with the axis of the built-up column 4) The lacing shall be designed for a transverse shear of 2.5% of the axial load on the column Which of the above statements are correct?
Two plates are joined by double strap butt joints with rivets arrangement as shown in the figure. Width of the plate is 300mm and diameter of rivets 30mm. The thickness of the plates can be taken as 20mm. Allowable stress in tension, shear and compression are 80 N/mm²,60 N/mm² and 160N/mm². If width of plate=80mm and diameter of rivets 10mm, then pitch will be?
Connie has a number of gold bars, all of different weights. She gives the 24 lightest bars, which weigh 45% of the total weight, to Brennan. She gives the 13 heaviest bars, which weigh 26% of the total weight, to Maya. She gives the rest of the bars to Blair. How many bars did Blair receive?
For a laced column, the minimum width of the lacing bars when using 20 mm nominal diameter rivets is
The width carriageway required will depend on the intensity and volume of traffic anticipated to use the bridge. a. Except on minor village roads all bridges must provide for at least two-lane width b. The minimum width of the carriageway is 4.25 m for a one-lane bridge c. The minimum width of the carriageway is 3.75 m for a one-lane bridge d. The minimum width of the carriageway is 7.5 m for a two-lane bridge Which of the following statement(s) given above is/are incorrect.
Two plates are joined by double strap butt joints with rivets arrangement as shown in the figure. Width of the plate is 300mm and diameter of rivets 30mm. The thickness of the plates can be taken as 20mm. Allowable stress in tension, shear and compression are 80 N/mm²,60 N/mm² and 160N/mm². Calculate the tensile strength of rivets along B-B.
Two plates are joined by double strap butt joints with rivets arrangement as shown in the figure. Width of the plate is 300mm and diameter of rivets 30mm. The thickness of the plates can be taken as 20mm. Allowable stress in tension, shear and compression are 80 N/mm²,60 N/mm² and 160N/mm². Calculate the tensile strength of rivets along C-C.
Two plates are joined by double strap butt joints with rivets arrangement as shown in the figure. Width of the plate is 300mm and diameter of rivets 30mm. The thickness of the plates can be taken as 20mm. Allowable stress in tension, shear and compression are 80 N/mm²,60 N/mm² and 160N/mm². Calculate the pitch of the rivets.
If number of rivets subjected to single shear per pitch length is 2 and those subjected to double shear per pitch length are 3, then find the shear resistance of rivets is diameter of rivets is 20mm and permissible shear 60N/mm².
Compressive strength in lacing bars in single lacing system is equal to