دانلود عمران و معماری
کتاب معماری - Elements of Urban Stormwater Design
H. Rooney Malcom, P.E.
North Carolina State University
These notes are intended as the basis for teaching the elements of urban stormwater design to
engineering students and practicing professionals. Students and readers are assumed to have a
basic understanding of hydraulics and hydrology. As there is considerable local and regional
variation in accepted practices, particularly in the determination of system design loadings, it will
be necessary for designers to modify the methodology from time to time and place to place. The
ideas presented have been distilled over some years by the author and a good many colleagues and
students to become comfortable tools to use in routine component selection and preliminary design
of more complex systems.
The fundamental process of engineering design is one in which the engineer selects one or
more mathematical models to represent a physical system, manipulates the system components to
acheive some desired response under loadings of interest, and specifies the system to be
constructed in the field. The process is dominated by judgments to be made by designer and
reviewer. Is the model valid and appropriate? Are the assumptions inherent in the model justified
in the case at hand? Are the design loads prudent? Have the worst cases been identifed? Has the
system been defined with adequate precision? Can the results be verified? Will the system
perform as expected? This manual, together with the course that it supports, explores these issues
in the common elements of stormwater management systems.
The manual and lectures have evolved since 1975 from an early set of notes prepared for a
workshop series by the author with Vemon New. Since then, the author has taught more than fifty
short courses nationwide: from 1979 through 1983 with Bruce Bradford using extensions of the
1975 notes and from 1984 through 1987 in the APWA Urban Drainage Workshops. These were
enriching experiences in that they brought together designers and reviewers from many semngs to
consider the issues of nutsy-boltsy design of storm drainage systems. The author fully enjoys
these opportunities to interact with practicing professionals.