Arch Flashcards
1
Q
A
Triangular Arch
2
Q
A
Reverse o Gee Arch
3
Q
A
Ogee Arch
4
Q
A
Lancet Arch
5
Q
A
Rampant Round Arch
6
Q
A
inflexed arch
7
Q
A
Equilateral Pointed Arch
8
Q
A
Segmental Arch
(less than the semi circle, remember “Parts of the circle, which are arc, segment and sector”
9
Q
A
Parabolic Arch
10
Q
A
11
Q
A
Three Centered arch
12
Q
A
horse shoe arch
13
Q
A
Tudor Arch
14
Q
A
Elliptical Arch
15
Q
A
Shouldered Flat Arch
16
Q
A
Tre Foiled Arch
17
Q
A curved structure for spanning and opening, designed to support a vertical load primarily by axial compression.
A
Arch
18
Q
An arch constructed of individual stone or brick voussoirs.
A
Masonry Arch
19
Q
Any of the wedge-shaped units in a masonry arch or vault, having side cuts converging at one of the arch centers.
A
Voussoir
20
Q
The wedge-shaped, often embellished voissor at the crown of an arch, serving to lock the other voussoirs in place.
A
Keystone
(Crown means top or highest level, remember crown in Pipe sections - Invert and Crown)
21
Q
The exterior curve, surface or boundary of the visible face of an arch.
A
Extrados or Back
22
Q
A decorative molding or band on the face of an arch following the curve of the intrados.
A
Archivolt
23
Q
The inner curve or surface of an arch forming the concave underside.
A
Intrados
24
Q
The height of an arch from the spring line to the highest point of the intrados (sometimes at the bottom of the Keystone).
A
Rise
25
The point at which an arch, vault or dome rises from its support.
Spring or Springing
26
The first voussoir resting on the impost of an arch.
Springer
27
The highest part or point of a convex construction, such as an arch, vault or roadway.
Crown
28
Either side of an arch curving down from the crown to the impost.
Haunch
29
The uppermost part of an abutment, often in the form of a block, capital or molding from which an arch springs.
Impost
30
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
31
Any of several concentric rings of masonry forming an arch, especially when each projects beyond the one below.
Order
32
A crosspiece connecting the ribs in a centering.
Lag or Bolster
33
An archway having sides or jambs not at right angles with the face of its abutments.
Skew Arch
| (tabingi yung isang dulo ng arch)
34
Skew
hindi parallel hindi din right angle, in short "Tabingi"
35
A temporary framework for supporting a masonry arch or vault during construction until the work can support itself.
Centering
36
A board used as centering for a flat arch, slightly crowned to allow for settling of the arch.
Camber Piece or Camber Slip
37
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
38
The median line of an arched structure.
Arch Axis
39
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.
Line of Thrust
40
Coincide
magtugma, mag sang ayon sa isat isa
41
An arch shaped to develop only axial compression under a given loading. This shape may be found by inverting the funicular shape for a cable carrying a similar loading pattern. As with any funicular structure, a funucular arch is subject to bending if the loading pattern changes.
## Footnote
* An inverted catenary is the funicular shape for an arch carrying a vertical load uniformly distributed along the length of the arch axis.*
* The parabola is the funicular shape for an arch carrying a vertical load uniformly distributed over its horizontal projection.*
Funicular Arch
42
The outward force or pressure exerted by one part of a structure against another.
Thrust
43
The thrust of an arched structure on its abutments, proportional to the total load and span, and inversely proportional to the rise.
Drift
44
An arch structure of timber, steel or reinforced concrete, constructed as a rigid body capable of carrying bending stresses.
Rigid Arch
45
A fixed frame structure having an arched form.
Fixed Arch
46
A two-hinged frame structure having an arched form.
Two Hinged arch
47
A three-hinged frame structure having an arched form.
Three-hinged arch
48
The part of a structure receiving and supporting the thrust of an arch, vault or strut.
Abutment
49
An iron or steel rod serving as a structural tie, specially one keeping the lower ends of an arch or frame from spreading.
Tie Rod
50
An arch having a horizontal intrados with voussors radiating from a center below, often building with a slight camber to allow for settling.
Flat Arch or jack arch
51
A flat arch having voussoirs inclined to the **same angle** on each side of the center.
French arch
52
A primitive form of arch consisting of **two stones laid diagonally** to support each other over an opening.
Triangular Arch
53
A false arch constructed by corbelling 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
54
An arch having a continuously curved intrados especially a **semicircular one.**
Round arch
55
An arch having a semicircular intrados.
Roman Arch
56
An arch having one impost higher than the other.
Rampant arch
57
An arch resting on imposts trated as downward continuation of the archivolt.
Stilted Arch
58
A round arch resting on two large corbels with curved faces.
Bell Arch
59
An arch having an intrados that widens above the springing before narrowing to a rounded crown.
Moorish arch or Horseshoe Arch
60
An arch having a cusped intrados with three round or pointed foils.
Trefoil Arch
61
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
62
An arch struck from one or more centers below the springing line.
Segmental Arch
63
A stone or course of masonry having a sloping face against which the end of a segmental arch rests.
Skewback
64
An arch having a pointed crown.
Pointed Arch
65
A pointed arch having two centers and radii equal to the span.
Equilateral arch
66
A pointed arch especially one having two centers and equal radii
Gothic Arch
67
A pointed arch having two centers and raii greater than the span.
Lancet Arch
68
A pointed arch having two centers and raii less than the span.
Drop Arch
69
A four-centered arch having an inner pair of curves with a radius much greater than that of the outer pair.
Tudor Arch
70
An arch having a rise of less than half the span.
Surbased Arch
71
A pointed arch, each haunch of which is a double curve with the **concave side uppermost.**
Ogee Arch
