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51 Cards in this Set
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- 3rd side (hint)
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A curved structure for spanning an opening, designed to support a vertical load primarily by axial compression. |
Arch |
a. arch b. dome c. vault d. bow |
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An arch constructed of individual stone or voussoirs. |
Masonry Arch |
a. corbel arch b. triangular arch c. masonry arch d. rigid arch |
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Any wedge-shaped units in a masonry arch or vault, having side cuts converging at one of the arch centers. |
Voussoir |
a. springer b. voussoir c. spring d. springing |
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A wedge-shaped, often embellished voussoir at the crown of an arch, serving to lock the other voussoirs in place. |
Keystone |
a. capstone b. keystone c. crown d. topstone |
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The exterior curve, surface, or boundary of the visible face of an arch. |
Extrados of Back |
a. front b. back c. intrados d. extrados |
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A decorative molding or band on the face of an arch following the curve of the intrados. |
Archivolt |
a. architrave b. vault c. voussoir d. archivolt |
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The inner curve or surfacing of an arch forming the concave underside. |
Intrados |
a. front b. back c. intrados d. extrados |
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The height of an arch from the spring line to the highest point of the intrados. |
Rise |
a. riser b. run c. tread d. rise |
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The first voussoir resting on the impost of an arch. |
Springer |
a. springer b. voussoir c. spring d. springing |
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The point at which an arch, vault, or dome rises from its support. |
Spring or Springing |
a. springer b. voussoir c. spring d. springing |
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The highest part or point of a convex construction, such as an arch, vault, or roadway. |
Crown |
a. capstone b. crown c. haunch d. impost |
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Either side of an arch curving down from the crown to the impost. |
Haunch |
a. spandril b. haunch c. impost d. crown |
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The uppermost part of an abutment, often in the form of a block, capital, or molding, from which an arch springs. |
Impost |
a. spandril b. haunch c. impost d. crown |
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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. |
Spandrel or Spandril |
a. spandril b. haunch c. impost d. crown |
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Any several concentric rings of masonry forming an arch, especially when each projects beyond the one below. |
Order |
a. order b. bolster c. camber slip d. skew arch |
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A crosspiece connecting the ribs in a centering. |
Lag or Bolster |
a. order b. bolster c. lag d. camber piece |
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A temporary framework for supporting a masonry arch or vault during construction until the work can support itself. |
Centering |
a. aligning b. formwork c. centering d. concretework |
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An archway having sides or jambs not at right angles with the face of its abutments. |
Skew Arch |
a. masonry arch b. funicular arch c. rigid arch d. skew arch |
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A board used as centering for a flat arch, slightly crowned to allow for settling of the arch. |
Camber Piece or Camber Slip |
a. formwork b. centering c. camber piece d. campbell |
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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. |
Arch Action |
a. arch action b. arch axis c. arch thrust d. arch load |
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The median line of an arched structure. |
Arch Axis |
a. arch action b. arch axis c. arch thrust d. arch load |
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The set of resultants of thrust and weight each part of an arch imposes on the next lower one. |
Line of Thrust |
a. thrust b. line of thrust c. drift d. arch drift |
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An arch shaped to develop only axial compression under a given loading. |
Funicular Arch |
a. fixed arch b. masonry arch c. funicular arch d. rigid arch |
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The outward force or pressure exerted by one part of a structure against another. |
Thrust |
a. thrust b. line of thrust c. drift d. arch drift |
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The thrust of an arched structure on its abutments, proportional to the total load and span, and inversely proportional to the rise. |
Drift |
a. thrust b. line of thrust c. drift d. arch drift |
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An arched structure of timber, steel, or reinforced concrete, constructed as rigid body capable of carrying bending stresses. |
Rigid Arch |
a. fixed arch b. masonry arch c. funicular arch d. rigid arch |
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A fixed frame structure having an arched form. |
Fixed Arch |
a. fixed arch
b. masonry arch c. funicular arch d. rigid arch |
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The part of a structure receiving and supporting the thrust of an arch, vault, or strut. |
Abutment |
a. abutment b. buttress c. base d. plinth |
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An iron or steel rod serving as a structural tie, especially one keeping the lower ends of an arch or frame from spreading. |
Tie Rod |
a. stirrup b. ties c. tie rod d. bolts |
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An arch having a horizontal intrados with voussoirs radiating from a center below, often built with a slight camber to allow settling. |
Flat arch or Jack Arch |
a. rigid arch b. french arch c. flat arch d. jack arch |
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A flat arch having voussoirs inclined to the same angle on each side of the center. |
French Arch |
a. rigid arch b. french arch c. flat arch d. jack arch |
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A primitive form of arch consisting of two stones laid diagonally to support each other over an opening. |
Triangular Arch |
a. stepped arch b. corbel arch c. diagonal arch d. triangular arch |
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A flase 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 smoothed, but no arch action is effected. |
Corbel Arch |
a. stepped arch b. corbel arch c. diagonal arch d. triangular arch |
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An arch having one impost higher than the other |
Rampant Arch |
a. impost arch b. stilted arch c. rampant arch d. bell arch |
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An arch resting on imposts treated as downward continuations of the archivolt. |
Stilted Arch |
a. impost arch b. stilted arch c. rampant arch d. bell arch |
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A round arch resting on two large corbels with curved faces. |
Bell Arch |
a. impost arch b. stilted arch c. rampant arch d. bell arch |
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An arch having an intrados that widens above the springing before narrowing to a rounded crown. |
Horseshoe Arch or Moorish Arch |
a. u arch b. Moorish arch c. bell arch d. horseshoe arch |
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An arch having a cusped intrados with three round or pointed foils. |
Trefoil Arch |
a. intrados arch b. cusped arch c. trecusped arch d. trefoil arch |
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An arch having a continuously curved intrados, especially a semicircular one. |
Round Arch |
a. Roman arch b. round arch c. circular arch d. Greek arch |
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An arch having a semicricular intrados. |
Roman Arch |
a. Roman arch b. round arch c. circular arch d. Greek arch |
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An arch struck from one or more centers below the springing line. |
Segmental Arch |
a. short arch b. bell arch c. segmental arch d. basket-handle arch |
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A stone or course of masonry having a sloping face against which the end of a segmental arch rests. |
Skewback |
a. cornerstone b. masonry skew c. corkskew d. skewback |
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A three-centered arch having a crown with a radius much greater than that of the outer pair of curves. |
Basket-Handle Arch or Anse de Panier |
a. tudor arch b. basket arch c. equilateral arch d. Anse de Panier |
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An arch having a pointed crown. |
Pointed Arch |
a. ogee arch b. equilateral arch c. pointed arch d. lancet arch e. Gothic arch |
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A pointed arch having two centers and radii equal to the span. |
Equilateral Arch |
a. ogee arch b. equilateral arch c. pointed arch d. lancet arch e. Gothic arch |
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A pointed arch, especialy one having two centers and equal radii. |
Gothic Arch |
a. ogee arch
b. equilateral arch c. pointed arch d. lancet arch e. Gothic arch |
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A pointed arch having two centers and radii greater then the span. |
Lancet Arch |
a. ogee arch
b. equilateral arch c. pointed arch d. lancet arch e. Gothic arch |
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A pointed arch having two centers and radii less than the span. |
Drop Arch |
a. equilateral arch b. Gothic arch c. Tudor arch d. drop arch e. surbased arch |
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A four-centered arch having an inner pair of curves with a radius much greater than that of the outer pair. |
Tudor Arch |
a. equilateral arch b. Gothic arch c. Tudor arch d. drop arch e. surbased arch |
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An arch having a rise of less than half the span. |
Surbased Arch |
a. equilateral arch
b. Gothic arch c. Tudor arch d. drop arch e. surbased arch |
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A pointed arch, each haunch of which is a double curve with the concave side uppermost. |
Ogee Arch |
a. ogee arch
b. equilateral arch c. pointed arch d. lancet arch e. Gothic arch |
