IDENTIFICATION

Question 1

the force equilibrium equation is sufficient to fin the support reactions

Answer 1

STATICALLY DETERMINATE STRUCTURE

Question 2

is to develop a simple model of the structure which is statically determinate to solve a statically determinate problem

Answer 2

APPROXIMATE ANALYSIS

Question 3

is an approximate analysis used for analysing building frames subjected to lateral loadings

Answer 3

PORTAL METHOD

Question 4

zero moment location for mechanically loaded structures

Answer 4

POINT OF INFLECTION

Question 5

equal in magnitude but opposite in direction to the algebraic sum (resultant) of the components in the direction parallel to the axis of the beam of all external loads and support reactions acting on either side of the section being considered

Answer 5

INTERNAL AXIAL FORCE

Question 6

equal in magnitude but opposite in direction to the algebraic sum (resultant) of the components in the direction perpendicular to the axis of the beam of all external loads and support reactions acting on either side of the section being considered

Answer 6

INTERNAL SHEAR FORCE

Question 7

equal in magnitude but opposite in direction to the algebraic sum of the moments about (the centroid of the cross section of the beam) the section of all external loads and support reactions acting on either side of the section being considered

Answer 7

INTERNAL BENDING MOMENT

Question 8

a positive bending moment bends a beam concave upward, and a negative bending moment bends a beam concave downward

Answer 8

TRUE

Question 9

subjected to a live or moving load, the variation of the shear and bending moment in the member

Answer 9

INFLUENCE LINE

Question 10

represents the variation of either the reaction, shear, moment, or deflection at a specific point in a member as a concentrated force moves over the member

Answer 10

INFLUENCE LINE

Question 11

PROCEDURES OF ANALYSIS IN INFLUENCE LINES

Answer 11

1. DETERMINE THE UNIT LOAD AT X LOCATION
2. SOLVE FOR REACTIONS/SHEAR/MOMENT
3. DETERMINE THE INFLUENCE LINE EQUATIONS
4. TABULATE DATA
5. PLOT THE GRAPH

Question 12

F acting on the beam, the value of the function can be found by multiplying the ordinate of the influence line at position x by magnitude F

Answer 12

CONCENTRATED FORCE

Question 13

Each dx segment of this load creates a concentrated force of dF = w dx

The effect of all concentrated force is determined by integrating over the entire length of the beam

Answer 13

UNIFORM LOAD

Question 14

the influence line for a function (reaction, shear, or moment) is to the same scale as the deflected shape of the beam when the beam is acted upon by the function

Answer 14

MULLER-BRESLAU PRINCIPLE