Special Forms
Special formwork may be required for uncommon structures, such as folded plates, shells, arches, and posttensioned-in-place designs, or for special methods […]
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.
Special formwork may be required for uncommon structures, such as folded plates, shells, arches, and posttensioned-in-place designs, or for special methods […]
Federal specifications are written to establish minimum standards for purposes of competitive bidding and to ensure that government agencies will receive
Special fasteners, such as tubular rivets, blind rivets (capable of being driven from one side only), special bolts used for blind
Enhancing the functions performed by the power and lighting systems, the special systems in a building serve the life safety, communication,
Footings supporting columns are usually made considerably larger than the columns to keep pressure and settlement within reasonable limits. Generally, each
These are metal devices used with bolts or lag screws for producing joints with fewer fasteners without reduction in strength. Several
Space limitations preclude more than a brief listing of some of the special analyses required for various special types of reinforced
Sound is a vibration in an elastic medium. It is a simple form of mechanical energy, and can be described by
Sound travels via elastic media. Hard, rigid, dense materials make excellent transmission paths, because they can accept much energy readily. Sound