Question

College of Technology Department of Construction Management Strength of Construction Materials CNST 3355 Fall 2019 HW #3 due on September 12, 2019 Problem 1 Determine the reaction forces at the support A and B for the beam shown. Neglect the weight of the beam. 20k 154 lok 3/ET. 2.B Problem 2 Determine the reaction forces at the support A and B for the beam shown. Neglect the weight of the beam. 15k lok zok XBO AA

Answer 1

Beltem 2 Problem 1 2' 3' 36" 3' 3'6" 3' 3 Klft I ok com za razn* 3:51*3*3.5*31 tko RA+ Re = 20+15+10 + 3x5 ift---12-10 lin. 1 ft UDL RATRR = 60k EMB =D ) Clockwise tve And Glockwise -re + Rpx 16 - 3*5*(+ 3) - 20x9.5 - 15x6.5 -1043 - 0 RAX 16 = 3x5X(15-5) + 20x9-5+15X6.5 +10x3 RA = 34.375 k RB = 60-34-375 RB = 25,625K)

Problem 10- 61 A 31 fart 3.5 POK 3.504 10.61 TOF 10x2 20K-ft Tanco = 1 9= 45° 158945 isk V=O) 15 10:45 Sa+Mg = 10-6 1 -10t09 10-61 Rat Rs = 40.61 K 10.61 (22=0 Hat 10-10-61 = 0 THA=0.61k (3M = 0 - RB* 17 +(20x 14 +20 +0x7-10-61x 3) = 0 moment R$ = 23.637 | RB² 23-64k] R - 6- 67