diff options
Diffstat (limited to '3772/CH10')
-rw-r--r-- | 3772/CH10/EX10.1/Ex10_1.sce | 34 | ||||
-rw-r--r-- | 3772/CH10/EX10.2/Ex10_2.sce | 57 | ||||
-rw-r--r-- | 3772/CH10/EX10.3/Ex10_3.sce | 65 | ||||
-rw-r--r-- | 3772/CH10/EX10.4/Ex10_4.sce | 42 | ||||
-rw-r--r-- | 3772/CH10/EX10.5/Ex10_5.sce | 62 | ||||
-rw-r--r-- | 3772/CH10/EX10.6/Ex10_6.sce | 51 | ||||
-rw-r--r-- | 3772/CH10/EX10.7/Ex10_7.sce | 53 | ||||
-rw-r--r-- | 3772/CH10/EX10.8/Ex10_8.sce | 53 |
8 files changed, 417 insertions, 0 deletions
diff --git a/3772/CH10/EX10.1/Ex10_1.sce b/3772/CH10/EX10.1/Ex10_1.sce new file mode 100644 index 000000000..1cc6b9416 --- /dev/null +++ b/3772/CH10/EX10.1/Ex10_1.sce @@ -0,0 +1,34 @@ +// Problem no 10.1,Page No.249 + +clc;clear; +close; + +//Consider Equilibrium of joint A +//As there are no Load applied at A members AC and AB have nothing to Balance +//So they are null members +F_AB=0 +F_AC=0 + +//Consider Equilibrium of joint B + +//Applying the summation of horizontal forces we get +F_DB=4*(cos(45*%pi*180**-1))**-1 + +//Applying the summation of vertical forces we get +F_BC=F_DB*sin(45*%pi*180**-1) + +//Consider Equilibrium of joint B + +//Applying the summation of vertical forces we get +F_CE=4*(sin(45*%pi*180**-1))**-1 + +//Applying the summation of horizontal forces we get +F_DC=F_CE*cos(45*%pi*180**-1) + +//Result +printf("The Forces in Each members are as follows:F_AB = %.f kN",F_AB) +printf("\n :F_AC = %.f kN",F_AC) +printf("\n :F_DB %.2f",F_DB);printf(" KN(compression)") +printf("\n :F_BC %.2f",F_BC);printf(" KN(Tension)") +printf("\n :F_CE %.2f",F_CE);printf(" KN(Tension)") +printf("\n :F_DC %.2f",F_DC);printf(" KN (compression)" ) diff --git a/3772/CH10/EX10.2/Ex10_2.sce b/3772/CH10/EX10.2/Ex10_2.sce new file mode 100644 index 000000000..91d6396ba --- /dev/null +++ b/3772/CH10/EX10.2/Ex10_2.sce @@ -0,0 +1,57 @@ +// Problem no 10.2,Page No.250 + +clc;clear; +close; + +//Taking moment at Pt A we get +R_B=100*8*4**-1 + +//Applying the summation of vertical forces we get +R_AV=-R_B + +//Applying the summation of horizontal forces we get +R_H=100 + +//joint B + +//Applying the summation of vertical forces we get +F_CB=R_B + +//Applying the summation of horizontal forces we get +F_AB=0 //As there is no force to balance in horizontal direction + +//joint A + +//Applying the summation of horizontal forces we get +F_AC=R_H*(cos(45*%pi*180**-1))**-1 + +//Applying the summation of vertical forces we get +F_AD=200-F_AC*sin(45*%pi*180**-1) + +//joint C + +//Applying the summation of vertical forces we get +F_EC=200-F_AC*cos(45*%pi*180**-1) + +//Applying the summation of horizontal forces we get +F_DC=F_AC*cos(45*%pi*180**-1) + +//joint D + +//Applying the summation of horizontal forces we get +F_DE=F_DC*(cos(45*%pi*180**-1))**-1 + +//DF and EF are null members at this joint as each member individually has nothing to balance +F_DF=0 +F_EF=0 + +//Result +printf("The Forces in Each members are as follows:F_AB = %.1f kN",F_AB) +printf("\n :F_CB = %.1f kN (compressive)",F_CB) +printf("\n :F_AC %.2f",F_AC);printf(" KN(Tensile)") +printf("\n :F_AD=%.1f kN (Tensile)",F_AD) +printf("\n :F_EC=%.1f kN N(Compressive)",F_EC) +printf("\n :F_DC=%.1f kN N(Compressive)",F_DC) +printf("\n :F_DE %.2f",F_DE);printf(" KN(Tensile)") +printf("\n :F_DF = %.f kN",F_DF) +printf("\n :F_EF = %.f kN",F_EF) diff --git a/3772/CH10/EX10.3/Ex10_3.sce b/3772/CH10/EX10.3/Ex10_3.sce new file mode 100644 index 000000000..23777b820 --- /dev/null +++ b/3772/CH10/EX10.3/Ex10_3.sce @@ -0,0 +1,65 @@ +// Problem no 10.3,Page No.252 + +clc;clear; +close; + +//taking moment at pt A we get +R_D=(90*6+120*3)*9**-1 //Reaction at Pt D + +//Joint D + +//Applying the summation of vertical forces we get +F_GD=100*(sin(60*%pi*180**-1))**-1 + +//Applying the summation of horizontal forces we get +F_DC=F_GD*cos(60*%pi*180**-1) + +//Joint G + +//Applying the summation of vertical forces we get +F_GC=F_GD + +//Applying the summation of horizontal forces we get +F_FG=F_GD*cos(60*%pi*180**-1)+F_GC*cos(60*%pi*180**-1) + +//joint C + +//Applying the summation of vertical forces we get +F_FC=(115.5*sin(60*%pi*180**-1)-90)*(sin(60*%pi*180**-1))**-1 + +//Applying the summation of horizontal forces we get +F_CB=F_DC+F_GC*cos(60*%pi*180**-1)+F_FC*cos(60*%pi*180**-1) + +//joint F + +//Applying the summation of vertical forces we get +F_FB=F_FC + +//Applying the summation of horizontal forces we get +F_EF=F_FG+F_FC*cos(60*%pi*180**-1)+F_FB*cos(60*%pi*180**-1) + +//Joint B + +//Applying the summation of vertical forces we get +F_EB=(120-F_FB*sin(60*%pi*180**-1))*(sin(60*%pi*180**-1))**-1 + +//Applying the summation of horizontal forces we get +F_BA=F_CB+F_FB*cos(60*%pi*180**-1)-F_EB*cos(60*%pi*180**-1) + +//Joint E + +//Applying the summation of vertical forces we get +F_AE=F_EB + +//Result +printf("Forces in Each members are as follows:F_GD %.1f kN (compression)",F_GD) +printf("\n :F_DC %.2f",F_DC);printf(" KN(Tension)" ) +printf("\n :F_GC %.1f kN (Tension)",F_GC) +printf("\n :F_FG %.1f kN (Compression)",F_FG) +printf("\n :F_FC %.1f kN(compression)",F_FC) +printf("\n :F_CB %.2f",F_CB);printf(" KN(Tension)") +printf("\n :F_FB %.1f kN(compression)",F_FB) +printf("\n :F_EF %.2f",F_EF);printf(" KN(compression)") +printf("\n :F_EB %.2f",F_EB);printf(" KN(Tension)") +printf("\n :F_BA %.2f",F_BA);printf(" KN(Tension)") +printf("\n :F_AE %.2f",F_AE);printf(" KN(compression)") diff --git a/3772/CH10/EX10.4/Ex10_4.sce b/3772/CH10/EX10.4/Ex10_4.sce new file mode 100644 index 000000000..a07330b75 --- /dev/null +++ b/3772/CH10/EX10.4/Ex10_4.sce @@ -0,0 +1,42 @@ +// Problem no 10.4,Page No.253 + +clc;clear; +close; + +//JOint D + +//Applying the summation of vertical forces we get +F_1=6*sin(30*%pi*180**-1)**-1 + +//Applying the summation of horizontal forces we get +F_5=F_1*cos(30*%pi*180**-1) + +//Joint C + +//Resolving forces perpendicular to plane +F_6=10*cos(30*%pi*180**-1) + +//Resolving forces parallel to plane +F_2=F_1+10*cos(60*%pi*180**-1) + +//Joint E + +//Applying the summation of vertical forces we get +F_7=(8+F_6*sin(60*%pi*180**-1))*(sin(60*%pi*180**-1))**-1 +F_4=F_5+F_6*cos(60*%pi*180**-1)+F_7*cos(60*180**-1*%pi) + +//Resolving forces perpendicular to plane +F_3=F_7*sin(60*%pi*180**-1) + +//Resolving forces parallel to plane +F_8=F_2+F_7*cos(30*%pi*180**-1) + +//Result +printf("Forces in Each members are as follows:F_1 %.2f",F_1);printf(" KN(Tension)") +printf("\n :F_5 %.2f",F_5);printf(" KN(compression)") +printf("\n :F_6 %.2f",F_6);printf(" KN(compression)") +printf("\n :F_2 %.2f",F_2);printf(" KN(Tension)") +printf("\n :F_7 %.2f",F_7);printf(" KN(Tension)") +printf("\n :F_4 %.2f",F_4);printf(" KN(compression)") +printf("\n :F_3 %.2f",F_3);printf(" KN(compression)") +printf("\n :F_8 %.2f",F_8);printf(" KN(Tension)") diff --git a/3772/CH10/EX10.5/Ex10_5.sce b/3772/CH10/EX10.5/Ex10_5.sce new file mode 100644 index 000000000..af85fdd5a --- /dev/null +++ b/3772/CH10/EX10.5/Ex10_5.sce @@ -0,0 +1,62 @@ +// Problem no 10.5,Page No.256 + +clc;clear; +close; + +BC=6 //m + +//Calculations + +AB=2*BC*(3**0.5)**-1 + +//Taking moment about B we get +R_A=-(-2000*3-1000*6)*(12*(3**0.5)**-1)**-1 //reaction at the roller support A + +//The resultant of all the three Loads is 4000 N acting at right angle to BC at D + +//Resolving it vertically we have +V=4000*sin(60*%pi*180**-1) + +//Resolving it horizontal we have +H=4000*cos(60*%pi*180**-1) + +//Applying the summation of vertical forces we get +R_B_v=V-R_A + +//Applying the summation of horizontal forces we get +R_B_h=H +R_B=((R_B_v)**2+(R_B_h)**2)**0.5 + +tan_theta=R_B_v*R_B_h**-1 + +//Joint B + +//Applying the summation of vertical forces we get +F_BD=1000*(3**0.5)*2 + +//Applying the summation of horizontal forces we get +F_BE=R_B_h+F_BD*cos(30*%pi*180**-1) + +//Joint D +F_DE=2000 //N +F_CD=F_BD + +//Consider equilibrium of truss to the Left of section 2-2 +F_CE=R_A*AB*(sin(30*%pi*180**-1)*6)**-1 + +//Joint A + +//Applying the summation of vertical forces we get +F_AC=R_A*(sin(60*%pi*180**-1))**-1 + +//Applying the summation of horizontal forces we get +F_AE=F_AC*cos(60*%pi*180**-1) + +//Result +printf("Forces in Each members are as follows:F_BD %.2f",F_BD);printf(" KN(compression)") +printf("\n :F_BE %.2f",F_BE);printf(" KN(Tension)") +printf("\n :F_DE %.2f",F_DE);printf(" KN(compression)") +printf("\n :F_CD %.2f",F_CD);printf(" KN(compression)") +printf("\n :F_CE %.2f",F_CE);printf(" KN(Tension)") +printf("\n :F_AC %.2f",F_AC);printf(" KN(compression)") +printf("\n :F_AE %.2f",F_AE);printf(" KN(Tension)") diff --git a/3772/CH10/EX10.6/Ex10_6.sce b/3772/CH10/EX10.6/Ex10_6.sce new file mode 100644 index 000000000..c86506905 --- /dev/null +++ b/3772/CH10/EX10.6/Ex10_6.sce @@ -0,0 +1,51 @@ +// Problem no 10.6,Page No.258 + +clc;clear; +close; + +//Calculations + +//Taking moment of the Forces about the hinge A +P=1000*2**0.5*1.2*(0.9)**-1 + +//Let R_AH be the Horizontal component of the reaction at A +R_AH=P-1000*2**0.5 +R_A=((R_AH)**2+(1000*2**0.5)**2)**0.5 + +//Resolving the forces vertically we get +R_AV=1000*2**0.5 //vertical component of the reaction at A + +//joint A + +//Resolving vertically we get +F_BA=1000*2**0.5*(sin(30*%pi*180**-1))**-1 + +//Resolving horizontally we get +F_AD=2000*2**0.5*3**0.5*2**-1-1000*2**0.5*3**-1 //N + +//Joint C + +BD=1.2*sin(30*%pi*180**-1) +BE=0.6*sin(30*%pi*180**-1) +ED=0.6*cos(30*%pi*180**-1) +CE=0.9-0.52 + +theta=atan(BE*CE**-1)*(180*%pi**-1) + +F_CB=P*(sin(38.29*%pi*180**-1))**-1 + +//Resolving vertically +F_CD=F_CB*cos(theta*%pi*180**-1) + +//Joint D + +//Resolving horizontally +F_DB=(F_AD-1000*2**0.5)*(cos(60*%pi*180**-1))**-1 + +//Result +printf("The Pull in chain is %.2f",P);printf(" N") +printf("\n Force in the each members are as follows:F_BA %.2f",F_BA);printf(" KN(compressive)") +printf("\n :F_AD %.2f",F_AD);printf(" KN(Tensile)") +printf("\n :F_CB %.2f",F_CB);printf(" KN(compression)") +printf("\n :F_CD %.2f",F_CD);printf(" KN(Tensile)") +printf("\n :F_DB %.2f",F_DB);printf(" KN(compressive)") diff --git a/3772/CH10/EX10.7/Ex10_7.sce b/3772/CH10/EX10.7/Ex10_7.sce new file mode 100644 index 000000000..7c909293b --- /dev/null +++ b/3772/CH10/EX10.7/Ex10_7.sce @@ -0,0 +1,53 @@ +// Problem no 10.7,Page No.261 +clc; +clear; +close; + + +//Calculations + +theta=atan(1*2**-1)*(180*%pi**-1) //Radian + +//Taking moment about A +R_EH=10*8*4**-1 + +//Horizontal component of reaction at A +R_AH=20 //KN + +//Applying the summation of horizontal forces we get +F_AB=20*cos(theta*%pi*180**-1)**-1 + +//Applying the summation of vertical forces we get +R_AV=10*5**0.5*sin(theta*%pi*180**-1) + +//Vertical Reaction at E +R_EV=0 + +//Joint C + +//Applying the summation of vertical forces we get +F_DC=10*sin(theta*%pi*180**-1)**-1 + +//Applying the summation of horizontal forces we get +F_CB=F_DC*cos(theta*%pi*180**-1) + +//Joint D + +//Applying the summation of vertical forces we get +F_DB=F_DC*sin(theta*%pi*180**-1) + +//Applying the summation of horizontal forces we get +F_DE=F_DC*cos(theta*%pi*180**-1) + +//Joint E + +//Applying the summation of vertical forces we get +F_EB=R_EV*sin(theta*%pi*180**-1) + +//Result +printf("Forces in Each members are as follows:F_AB %.2f",F_AB);printf(" KN(Tensile)") +printf("\n :F_DC %.2f",F_DC);printf(" KN(compression)") +printf("\n :F_CB %.2f",F_CB);printf(" KN(Tensile)") +printf("\n :F_DB %.2f",F_DB);printf(" KN(Tensile)") +printf("\n :F_DE %.2f",F_DE);printf(" KN(compression)") +printf("\n :F_EB %.2f",F_EB);printf(" KN") diff --git a/3772/CH10/EX10.8/Ex10_8.sce b/3772/CH10/EX10.8/Ex10_8.sce new file mode 100644 index 000000000..9c7f6088a --- /dev/null +++ b/3772/CH10/EX10.8/Ex10_8.sce @@ -0,0 +1,53 @@ +// Problem no 10.8,Page No.262 + +clc;clear; +close; + +F_c=20 //KN //Force at C +F_d=5 //KN //Force at D +F_e=15 //KN //Force at E +F_f=10 //KN //Force at F +L_CD=3.6 //m //Length of CD +L_DE=3.6 //m //Length of DE +L_EF=4.8 //m //Length of EF +L_AD=3.6;L_BE=3.6 //m //Length of AD & BE + +//Calculations + +//Let R_A and R_B be the reactions at pts at A and B + +//Taking moment at A +R_B=-(-F_f*(L_DE+L_EF)+F_c*L_CD-F_e*L_DE)*(L_DE)**-1 +R_A=50-R_B + +//Considering section 1-1 through members AB,DB,DE and taking F.B.D of left side of section 1-1 + +//Taking moment at B +sigma_1=(F_d*L_DE+F_c*(L_CD+L_DE)-R_A*L_DE)*L_AD**-1 //Force i member DE + +//Taking moment @ D +sigma_3=(F_c*L_CD)*L_AD**-1 //KN //force in member AB + + +//Consider triangle DBE +theta=atan(L_BE*L_DE**-1)*(180*%pi**-1) + +//Taking moment @ A +sigma_2=(-sigma_1*L_AD+F_c*L_CD)*(L_AD*cos(theta*%pi*180**-1))**-1 //Force in member F_DE + +//Now considering section 2-2 passing through members AB,AD,CD and taking left hand F.B.D + +//Taking moment @C +sigma_5=(R_A*L_CD-sigma_3*L_AD)*L_CD**-1 //Force in member AD + +//Taking moment @A=0 +sigma_4=F_c*L_CD*L_AD**-1 //Force in member CD + + +//Result +printf("Force in member CD is %.2f",sigma_4);printf(" KN(Compressive)") +printf("\n Force in member AD is %.2f",sigma_5);printf(" KN(Tensile)") +printf("\n Force in member BD is %.2f",sigma_2);printf(" KN(Compression)") +printf("\n Force in member AB is %.2f",sigma_1);printf(" KN(Tension)") + +// Answer is wrong in the textbook. |