General Concepts 13 min read
Load Distribution To Bents And Shear Walls
Buildings must be designed to resist horizontal forces as well as vertical loads. In tall buildings, the lateral forces must…
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General Concepts 1 min read
Reiher-Meister Scale For SteadyState Vibrations
The scale discussed below and those in Art. 5.21 and 5.23 useful in assessing human perception to vibration levels. They…
General Concepts 2 min read
Wiss And Parmelee Rating Factor For Transient Vibrations
Wiss and Parmelee also conducted research to refine the findings of Lenzen’s research. In particular, they attempted to quantify, in…
General Concepts 2 min read
Floor Vibrations
Excessive vibration can be characterized as too large for sensitive equipment or too large for occupant comfort. Determining these permissible…
General Concepts 6 min read
Air-Stabilized Structures
A true membrane is able to withstand tension but is completely unable to resist bending. Although it is highly efficient…
General Concepts 5 min read
Stresses In Arches
An arch is a curved beam, the radius of curvature of which is very large relative to the depth of…
General Concepts 2 min read
Continuous Beams And Frames
Fixed-end beams, continuous beams, continuous trusses, and rigid frames are statically indeterminate. The equations of equilibrium are not sufficient for…
General Concepts 6 min read
Roof Trusses
A truss is a coplanar system of structural members joined together at their ends to form a stable framework. If…
General Concepts 3 min read
Graphic-Statics Fundamentals
A force may be represented by a straight line of fixed length. The length of line to a given scale…
General Concepts 8 min read
Buckling Of Columns
Columns are compression members whose cross-sectional dimensions are relatively small compared with their length in the direction of the compressive…
