Cable Structure

Question 1

A structural system utilizing the cable principal means of support

Answer 1

Cable structure

Question 2

A flexible structural member, such as wire rope or metal chain, having high tensile strength but offering no resistance to compression or bending

Answer 2

Cable

Question 3

The shape assumed by a freely deforming cable in direct response to the magnitude and location of external forces. A cable always its shape so that it in pure tension under the action of an applied load.

Answer 3

Funicular shape

Question 4

The shape assumed by a freely deforming cable in direct response to a set of concentrated loads

Answer 4

Funicular polygon

Question 5

The shape assumed by a freely deforming cable in direct response to a uniformly distributed load.

Answer 5

Funicular curve

Question 6

The curve assumed by a perfectly flexible, uniform cable suspended freely from 2 points not in the same vertical line. For a load that uniformly distributed in a horizontal projection, the curve approaches that of a parabola

Answer 6

Catenary

Question 7

A lens-shaped structure having the outward thrusts of an arch balanced by the inward pulls of a cable, resulting in no net lateral forces at the supports

Answer 7

Lenticular Structure

Question 8

The vertical distance from the supports to

the lowest point of a cable structure

Answer 8

Sag

Question 9

A structure shaped to carry or support a given loading by either axial tension or compression. For any given loading condition, there is only one general funicular shape. If the loading pattern changes, bending is induced in the structure.

Answer 9

Funicular structure

Question 10

A structure of cables suspended and prestressed between compression members to directly support applied loads

Answer 10

Suspension structure

Question 11

A bridge having a deck suspended from cables raised on towers and securely anchored to abutments at the ends.

Answer 11

Suspension bridge

Question 12

A suspension structure utilizing a parallel series of cables to support surface-forming beams or plates. A single-curvature structure is susceptible to flutter induced by the aerodynamic effects of wind. This liability can be reduced by increasing the deadload on the structure or anchoring the primary cables to the ground with transverse guy cables.

Answer 12

Single-curvature structure

Question 13

A suspension structure composed of different and often reverse curvatures. Each set of cables has a different natural period of vibration, thus forming a self-dampening system that is more resistant to flutter

Answer 13

Double-curvature structure

Question 14

A cable for absorbing the horizontal component of thrust in a suspension or cable-stayed structure and transferring the force to a ground foundation

Answer 14

Guy cable

Question 15

A vertical or inclined compression member in a suspension or cable-stayed structure, supporting the sum of the vertical force components in the primary and guy cables, inclining the mast enables it to pick up some of the horizontal cable thrust and reduces the force in the guy cables

Answer 15

Mast

Question 16

A suspension structure having upper and lower sets of cables of different curvatures, pretensioned by ties or compression struts to make the system more rigid and resistant to flutter

Answer 16

Double-cable structure

Question 17

One of the pretensioned cables directly supporting the load on a suspension structure

Answer 17

Primary cable

Question 18

One of the pretensioned cables used for stabilizing a suspension structure against flutter, usually having a curvature opposite to that of the primary cables

Answer 18

Secondary cable

Question 19

A cable for anchoring a set of secondary cables in a suspension structure

Answer 19

Boundary cable

Question 20

A structure having vertical or inclined masts from which cables extend to support horizontally spanning members arranged in a parallel or radial pattern

Answer 20

Cable-stayed structure