Design Of Steel Structures

lacing ✘ battening ✘ tie plates ✘ perforated cover plates ✔

1.33 d ✘ 1.25 d ✘ 1.5 d ✘ 1.75 d ✔

d/4 ✘ d/3 ✘ d/2 ✘ 2d/3 ✔

black bolt ✘ ordinary unfinished bolt ✘ turned and fitted bolt ✘ high strength bolt ✔

5 mm ✘ 6 mm ✘ 8 mm ✘ 10 mm ✔

lacing ✘ battening ✘ tie plates ✘ perforated cover plates ✔

1.33 d ✘ 1.25 d ✘ 1.5 d ✘ 1.75 d ✔

d/4 ✘ d/3 ✘ d/2 ✘ 2d/3 ✔

lap joint ✘ butt joint with single cover plate ✘ butt joint with double cover plates ✘ none of the above ✔

mean probable design life of structures ✘ basic wind speed ✘ both (a) and (b) ✘ none of the above ✔