Problems 511
Ans. 0 Dql^3
24 EI12
^3
2 tan
2
;y
l
2
D5ql^4
384 EI384
5^4
sec
2 1 ^2
8
IM
l
2
Dql^2
88
^2
sec
2 113.18.The uniform beamABis subjected to axial compressive forcePand exter-
nal momentM 0 at the supportA(Fig. P13.18). Calculate the slope at the support
Aand reactions of supportsAandB. Estimate effect of axial load for different
parametersk,
PDkPcr;PcrD2 EI
.0:7l /^2:P A BM 0lFig. P13.18
Ans.Q 0 DM 0
l.cos1/
sincos,MBDM 0sin
sincos:13.19.The uniform beamAB is subjected to axial compressive forceP and
transversal forceFat the middle point of the beam. Calculate slope at he sup-
portA, and linear displacement and bending moment at the point of forceF.
A Bl/ 2Pl/ 2FFig. P13.19
Ans. 0 DFl^2
16 EI8
^2
sec
2 1
;y
l
2
DFl^3
48 EI24
^3
tan
2
2
IM
l
2
DFl
42
tan
2;Dlr
P
EI