Floor Vibrations
Excessive vibration can be characterized as too large for sensitive equipment or too large for occupant comfort. Determining these permissible levels […]
Sociological changes, new technology in industry and commerce, new building codes, other new laws and regulations, inflationary economies of nations, and advances in building technology place an ever-increasing burden on building designers
and constructors. They need more and more knowledge and skill to cope with the demands placed on them.
The public continually demands more complex buildings than in the past. They must serve more purposes, last longer, and require less maintenance and repair. As in the past, they must look attractive. Yet, both building construction and operating
costs must be kept within acceptable limits or new construction will cease.
To meet this challenge successfully, continual improvements in building design and construction must be made. Building designers and constructors should be alert to these advances and learn how to apply them skillfully.
One advance of note to building design is the adaptation of operations research, or systems design, developed around the middle of the twentieth century and originally
applied with noteworthy results to design of machines and electronic equipment.
In the past, design of a new building was mainly an imitation of the design of an existing building. Innovations were often developed fortuitously and by intuition and were rare occurrences. In contrast, systems design encourages innovation.
It is a precise procedure that guides creativity toward the best decisions. As a result, it can play a significant role in meeting the challenges posed by increasing building complexity and costs. The basic principles of systems design are presented
in this section.
Excessive vibration can be characterized as too large for sensitive equipment or too large for occupant comfort. Determining these permissible levels […]
Flexural design strength should be based on factored loads and the assumptions of the ACI 318 Building Code, as explained in
Flexural-Strength Design of Prestressed Concrete Read Post »
Selection of a suitable and economical floor system for a steel-frame building involves many considerations: load-carrying capacity, durability, fire resistance, dead weight,
Fly ash meeting the requirements of ASTM C618, Specification for Fly Ash and Raw or Calcined Natural Pozzolan for Use
Most standard fire tests on structural-steel members and assemblies have been conducted at one of two places the National Institute of
A flat slab is a two-way slab generally of uniform thickness, but it may be thickened or otherwise strengthened in the
Steel members, such as spandrel beams and columns, on the exterior of a building may sometimes be left exposed or may
Nonprestressed beams should be designed for flexure as explained in Arts. 9.44 to 9.46. If beam capacity is inadequate with tension
From the basic principles given in preceding articles, systematic procedures have been developed for determining the behavior of a structure from