{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

44_Mechanics Homework Mechanics of Materials Solution

# 44_Mechanics Homework Mechanics of Materials Solution -...

This preview shows page 1. Sign up to view the full content.

This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: PROBLEM 1.57 *1.57 A 40-kg platform is attached to the end B of a 50-kg wooden beam AB, which is supported as shown by a pin at A and by a slender steel rod BC with a lZ-kN ultimate load. (a) Using the Load and Resistance Factor Design method with a resistance factor 05 = 0.90 and load factors ya = 1.25 and n = 1.6, determine the largest load which can be safely placed on the platform. (12) What is the corresponding conventional factor of safety for rod BC ’1 SOLUTION 922m = o (“5311? - 2.4 w: -I.2 M For elem? ﬂaming w, = woman r 392.4 N w: -.- (503mm) : I-l-‘la..S'N ‘PD = (§X3aa.4) +(§)(4‘l0.\$3 - Loczz x lo‘ N For Ptue. .poao’l'nﬂ 'W: = mg W; = 0 PL = €- mg 43mm wkllalﬁ m = % g5- Design cantata-Con papa +' 71-13:. = (PP, F1 ._.. Q13“ - Y. E: _ {9.901(I2wlo‘) - (l.2\$')(l.0628rlod) YL " LG = 5.?20xw‘ N A‘Wowwhﬁe foul W)" i 5';——~3--—:ll° '-'-‘ 3G2 k3 Con vew‘i't'ovl a.) 'Facli‘ov- sat-F94», P e PH R = l.0628 wzo‘ 4- 5.920210” = ensue" N ES, 3 ﬁ— : Wm HO: = . P (383x103 I 7'8 ...
View Full Document

{[ snackBarMessage ]}