Hydraulic Elevators
For low-rise elevators, hydraulic equipment may be used to supply the lift. Two basic designs are available: one where the […]
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.
For low-rise elevators, hydraulic equipment may be used to supply the lift. Two basic designs are available: one where the […]
Effective use of horizontally hinged swinging doors is made in such applications as craneway entrances to buildings. Widths exceeding 100 ft
The Commercial Building Telecommunications Cabling Standard, ANSI/TIA/EIA- 568-A, defines categories for 100- unshielded, twisted-pair cables. The Category 3 designation applies to cables
A hot-water heating system consists of a heater or furnace, radiators, piping systems, and circulator. A gravity system without circulating pumps
A hinge is a device permitting one part to turn on another. In builders hardware, the two parts are metal plates
Laminated thermosetting products consist of fibrous sheet materials combined witha thermosetting resin, usually phenol formaldehyde or melamine formaldehyde. The commonly used
Most manufacturers of air-conditioning equipment allow space in the air-handling compartment for the installation of a humidification unit and a heating
These differ from heat losses only by the direction of the heat flow. Thus, the methods discussed in Art. 13.7 for
Methods and principles for calculation of heat losses are presented in Art 13.3. These methods provide a rational procedure for