FEMA P55 Coastal Construction Manual, Fourth Edition - Mad Cad

8 DETERMINING SITE-SPECIFIC LOADS Volume II
Worksheet 2. Flood Load Computation Non-Tsunamic Zone V and Coastal A Zone (Open Foundation)
Flood Load Computation Worksheet: Non-Tsunami Zones V and Coastal A Zone (Open Foundation)
OWNER’S NAME: ______________________________ PREPARED BY: ______________________
ADDRESS: ___________________________________ DATE: _____________________________
PROPERTY LOCATION: ______________________________________________________________
Constants
Variables
w = specific weight of water = 62.4 lb/ft3 for fresh water and 64.0 lb/ft 3 for saltwater
= mass density of fluid = 1.94 slugs/ft 3 for fresh water and 1.99 slugs/ft 3 for saltwater
g = gravitational constant = 32.2 ft/sec 2
d s = design stillwater flood depth (ft) =
V = velocity (fps) =
C db = breaking wave drag coefficient =
a, D = pile diameter (ft) =
H b = breaking wave height (ft) =
C p = dynamic pressure coefficient =
C s = slam coefficient =
C d = drag coefficient for piles =
w = width of element hit by water (ft) =
h = vertical distance (ft) wave crest extends above bottom of member =
W = debris object weight (lb) =
C D = depth coefficient =
C B = blockage coefficient =
C Str = building structure coefficient =
L = horizontal length alongside building exposed to waves (ft) =
Summary of Loads
F brkp =
F s =
F dyn =
F i =
S max =
S TOT =
Equation 8.5 Breaking Wave Load on Vertical Piles
8-46 COASTAL CONSTRUCTION MANUAL