BTECH CHERRY FILE (STRUCTURAL) PART 3

MAGNITUDE

the measure of the energy released by an earthquake (measured by instrument)

MODULUS OF ELASTICITY

is the constant which, within the proportional limit, express ratio between the unit stress

to the unit strain. It is the measure of the relative abilities of the different materials of

construction to resist deformation under stress within proportional limit

MODULUS OF RESILIENCE

is a measure of the capacity of the material to absorb energy without danger of being

permanently deformed

MOMENT OF RESITANCE

is the internal resisting moment of a beam. It is opposite in sense to the bending

moment but of the same magnitude

MORTAR

is a mixture, composed of one part of Portland cement and one part of clean sand, used

as a filter

MULLION

is a vertical member between two portions of window sash usually designed to resist

wind load and not vertical load. It is different from muntin, which is smaller member

which separates the panels of glass within the whole sash.

NON- BEARING WALL

is wall that carries no load other than its own weight

ORTHOGONAL EFFECT

the effect on the structure due to extreme lateral (earthquake) motions acting in

directions other than parallel to the direction to the direction of resistance under

consideration

PARTY WALL

is a wall used or adopted for joint service between two buildings

PLASTER CEMENT FINISH

a mixture of Portland cement, with water and sand applied to surfaces such as walls

ceilings in a plastic state, later it sets to form a hard surface

POINTING

in masonry, the final treatment of joints by the troweling of mortar or putty like filler into

joints

PORTAL METHOD

method of analyzing indeterminate modular building frames by assuming hinges at the

center of beam spans and column heights or the interior column carries twice as much

shear as the exterior column

PORTLAND CEMENT

is the product obtained by finely pulverizing clinker produced by calcining to incipient

fusion an intimate and properly proportioned mixture of argillaceous and calcareous

materials with no additions subsequent to calcinations except water and calcined or

uncalcined gypsum

PROPORTIONAL LIMIT

is the highest unit stress for which the deformation of a body is proportional to the

stress. Beyond this point, permanent deformation occurs

REDUNDANT MEMBER

is any framed structure or truss, is one which maybe omitted in the structure without

affect in the possibility of analyzing the frame or truss by ordinary static method of

computations such as the counter diagonal truss

RIP-RAP

consist of rough stones of various placed compactly or irregularly to prevent scour by

water and protect material which maybe washed out by the water

SAGROD

structural member in the steel truss framing that counteracts forces in compression

because of high probability of the purlins to deflect and bend down during purlin

installation.

SAND DRAIN

it is provided to help in the compaction of natural soil which provide channels through

which water can escape much more rapidly then through the clay itself. The weight of

the drain itself helps in the compaction.

SHEAR WALL

a wall designed to resist lateral forces parallel to the plane of a wall

SOFFIT

is the concave surface of an arch

SPANDREL BEAM

is a beam from column to column, carrying an exterior wall in a skeleton building

STIFFNESS RATIO

in moment distribution method- (as used in analysis of indeterminate structures) is the

ratio of moment of inertia of the cross section of its length

STRESS

is the cohesive force in a body, which resists the tendency of an external force to

change the shape of the body

STRAIN OR DEFORMATION

is the change in the shape of any material when subjected to the action force

TIE BAR

a deformed bar, embedded in a concrete construction at a joint and designed to hold a

butting edges together, not designed for direct load transfer