A few years ago, at the beginning of the work on this book about SMA, I did not suppose it would take on such imposing proportions. Meanwhile, over the course of work on the publication, it turned out that the quantity of accessible materials on SMA was really spectacular, and the range of SMA-related subjects […]
Derivation of Water-Quality Constraints
In a WLA problem, one of the most essential requirements is the assurance of a minimum concentration of dissolved oxygen (DO) throughout the river system in an attempt to maintain desired levels of aquatic biota. The constraint relating the response of DO to the additional of in-stream waste generally is defined by the Streeter-Phelps equation […]
Denmark
The Danish design system deals with seasonal variations by adjusting the expected bearing capacity (E-modulus) of each pavement layer. In the design software MMOPP (Mathematical Model of Pavement Performance) (Ullidtz, 1993) the user can choose an advanced design procedure, where the performance of the road is simulated over (for example) 40 years. The program is […]
About the Author
Jay Shafer is leading a movement that is changing the way America views housing. His revolutionary approach to house design has stirred international dialogue. In his, The Small House Book (self-published, 2000), Shafer explains why smaller dwellings make good sense and how superior design can be achieved with less space. He has continued to share […]
FREESPANNING-STAIR BALUSTRADE
STAIRS Handrails Handrails provide stability and security for the young, the old, the blind, and the infirm. In addition, handrails are a safety feature for anyone who uses a stairway—one of the most likely and dangerous places for people to trip and fall. In terms of safety, the most important design feature of a […]
John Banta
My introduction to the downside of indoor air quality occurred along with my introduction to fatherhood in 1980. Like many first-time parents, my wife and I wanted to welcome our newborn by decorating the nursery. We painted and carpeted the room in anticipation of our new arrival. The room smelled of chemicals and I noticed […]
Additional Tests of Asphalt Mixture Characteristics
The previous deliberations on FPC use a basic level applied to the standard EN 13108-21 regarding tests of the mixture composition. Meanwhile methods of testing other properties of an asphalt mixture are discussed in Annex D (and are very informative). Collected results should be declared and used to support the procedure of extended validation of […]
. A STAIR LANDING
NEWEL POST Surface Anchored 2 Alternatives The advantage of the skirt over the housed stringer (see 217B) is the ease of construction. A disadvantage is the potential for minor opening of butt joints at the ends of treads and risers due to minor movement of the structure. A more involved hybrid strategy that limits this […]
Author Testimonials
Paula Baker-Laporte If someone had told me in the early years of my career that I would be writing a technical “how to” book about healthy homes, I would have looked at them with total incredulity! I would have explained that, as an architect, my main concerns were with the creation of beautiful and interactive […]
Technology for eternity
How many achievements called “eternal” survive the civilization, or even the regime, under which they were created? Perhaps not many, but certain of the hydraulic works of Antiquity have survived their origins. The canal connecting the Nile River and the Red Sea — built by the Pharaoh Necho, finished by the Persian Darius, perfected by […]