ARCHI A

Question 1

Any of the wedge-shaped units in a masonry arch or vault, having side cuts converging at one of the arch centers.

Answer 1

VOUSSOIR

Question 2

An arched structure of timber, steel, or reinforced concrete, constructed as a rigid body capable of carrying bending stresses.

Answer 2

RIGID ARCH

Question 3

A four-centered arch having an inner pair of curves with a radius much greater than that of the outer pair.

Answer 3

TUDOR ARCH

Question 4

The point at which an arch, vault, or dome rises from its support

Answer 4

SPRING

Question 5

The manner in which an arch transforms the vertical forces of a supported load into inclined components and transmits them to abutments on either side of the archway.

Answer 5

ARCH ACTION

Question 6

The first voussoir resting on the impost of an arch.

Answer 6

SPRINGER

Question 7

An arch having a continuously curves intrados., esp. semicircular one.

Answer 7

ROUND ARCH

Question 8

A temporary framework for supporting a masonry arch or vault during construction until the work can support itself.

Answer 8

CENTERING

Question 9

The uppermost part of an abutment, often in the form of a block, capital, or molding, from which an arch springs

Answer 9

IMPOST

Question 10

The exterior curve, surface or boundary of the visible face of an arch, also called the back.

Answer 10

EXTRADOS

Question 11

The height of an arch from the spring line to the highest point of the intrados

Answer 11

RISE

Question 12

An arch constructed of individual stone or brick voussoirs.

Answer 12

MASONRY ARCH

Question 13

A primitive form of arch consisting of two stoned laid diagonally to support each other over an opening

Answer 13

TRIANGULAR ARCH

Question 14

A false arch constructed by corbeling courses from each side of an opening until they meet at a midpoint where a capstone is laid to complete the work. The stepped reveals may be the smoothed, but no arch action is effected

Answer 14

CORBEL ARCH

Question 15

A pointer arch, esp. one having two centers and equal radii

Answer 15

GOTHIC ARCH

Question 16

A pointed arch having two centers and radii equal to the span

Answer 16

EQUILATERAL ARCH

Question 17

A stone or course of masonry having a sloping face against which the end of a segmental arch rests

Answer 17

SKEWBACK

Question 18

An arch struck from one or more centers below the springing line.

Answer 18

SEGMENTAL ARCH

Question 19

An arch having a semicircular intrados

Answer 19

ROMAN ARCH

Question 20

A flat arch having a voussoirs inclined to the same angle on each side of the center

Answer 20

FRENCH ARCH

Question 21

An arch having a pointed crown

Answer 21

POINTED ARCH

Question 22

An arch having a horizontal intrados with voussoirs radiating from a center below, often built with a slight camber to allow for settling

Answer 22

FLAT ARCH

Question 23

The median line of an arched structure.

Answer 23

ARCH AXIS

Question 24

The set of resultants of thrust and weight each part of an arch imposes on the next lower one. For bending to be eliminated throughout an arch, the line of thrust must coincide with the arch axis

Answer 24

LINE OF THRUST

Question 25

The thrust of an arched structure on its abutments, proportional to the total load and span, and inversely proportional to the rise.

Answer 25

DRIFT

Question 26

The outward force or pressure exerted by one part of a structure against another

Answer 26

THRUST

Question 27

An iron or steel rod serving as a structural tie, esp. one keeping the lower ends of an arch or frame from spreading

Answer 27

TIE ROD

Question 28

The part of a structure receiving and supporting the thrust of an arch, vault, or strut.

Answer 28

ABUTMENT

Question 29

A three-hinged frame structure having an arched form

Answer 29

THREE-HINGED ARCH

Question 30

A two hinged frame structure having an arched form

Answer 30

TWO-HINGED ARCH

Question 31

A fixed frame structure having an arched form

Answer 31

FIXED ARCH

Question 32

funicular shape for an arch carrying a vertical load uniformly distributed over its horizontal projection

Answer 32

PARABOLA

Question 33

funicular shape for an arch carrying a vertical load uniformly distributed along the length of the arch axis

Answer 33

INVERTED CATENART

Question 34

An arch shaped to develop only axial compression under a given loading.

Answer 34

FUNICULAR ARCH

Question 35

The wedge-shaped, often embellished voussoir at the crown of an arch, serving to lock the other voussoirs in place

Answer 35

KEYSTONE

Question 36

A decorative molding or brand on the face of an arch following the curve of the intrados

Answer 36

ARCHIVOLT

Question 37

The inner curve or surface of an arch forming the concave underside

Answer 37

INTRADOS

Question 38

The triangular-shaped, sometimes ornamented area between the extrados of two adjoining arches, or between the left or right extrados of an arch and the rectangular framework surrounding it

Answer 38

SPRANDEL

Question 39

A crosspiece connecting the ribs in a centering.

Answer 39

LAG

Question 40

A board used as centering for a flat arch, slightly crowned to allow for settling of the arch.

Answer 40

CAMBER PIECE

Question 41

Any of several concentric rings of masonry forming an arch, esp. when each projects beyond the one below

Answer 41

ORDER

Question 42

An archway having sides or jambs not at right angles with the face of its abutments

Answer 42

SKEW ARCH

Question 43

Either side of an arch curving down from the crown to the impost.

Answer 43

HAUNCH

Question 44

The highest part of the point of convex construction such as an arch, vault, or roadway

Answer 44

CROWN

Question 45

A curved structure for spanning an opening, designed to support a vertical load primarily by axial compression.

Answer 45

ARCH