Shopping Cart

No products in the cart.

ICC IBC SEAOC WDM 2018

$51.46

Wind Design Manual Based on the 2018 IBC and ASCE/SEI 7-16 Examples for Wind Forces on Buildings and Solar Photovoltaic Systems

Published By Publication Date Number of Pages
ICC 2018 355
Guaranteed Safe Checkout
Category:

If you have any questions, feel free to reach out to our online customer service team by clicking on the bottom right corner. We’re here to assist you 24/7.
Email:[email protected]

The Wind Design Manual provides examples on wind force design that illustrate the practical requirements of provisions in ASCE/SEI 7-16: Minimum Design Loads and Associated Criteria for Buildings and Other Structures. Practicing structural engineers, trained designers, building department engineers, other plan review agencies, professors and students, can all learn from these examples of code-compliant designs engineered to achieve good performance under wind loading. Developed by the Wind Design Manual Task Group of the Structural Engineers Association of California (SEAOC), the publication draws on the expertise of invited authors from various parts of the United States. The Wind Design Manual is intended for nationwide use, with example problems that apply to a variety of geographic areas. All are presented in a format similar to the SEAOC Structural/Seismic Design Manuals. A wide range of topics is covered General topics (4 examples) Specific topics (2 examples) Buildings (3 examples) Solar Photovoltaic systems (7 examples)

PDF Catalog

PDF Pages PDF Title
1 WIND DESIGN MANUAL BASED ON THE 2018 IBC® AND ASCE/SEI 7-16
2 WIND DESIGN MANUAL BASED ON THE 2018 IBC® AND ASCE/SEI 7-16 EXAMPLES FOR WIND FORCES ON BUILDINGS AND SOLAR PHOTOVOLTAIC SYSTEMS TITLE PAGE
3 COPYRIGHT
6 TABLE OF CONTENTS
8 PREFACE TO THE WIND DESIGN MANUAL
10 ACKNOWLEDGEMENTS
14 HOW TO USE THIS DOCUMENT
16 REFERENCES
18 DESIGN EXAMPLE 1 ENCLOSURE CLASSIFICATION
OVERVIEW
IMAGE: AIR MATTRESS
19 OUTLINE
DEFINITIONS
TABLE 26.13-1
20 1. ENCLOSURE CLASSIFICATIONS
ASCE TABLE 26.13-1 MAIN WIND FORCE RESISTING SYSTEM AND COMPONENTS AND CLADDING (ALL HEIGHTS): INTERNAL PRESSURE COEFFICIENT, (GCpi), FOR ENCLOSED, PARTIALLY ENCLOSED, PARTIALLY OPEN, AND OPEN BUILDINGS (WALLS AND ROOF)
21 1.1 DEFINITIONS OF OPENINGS
1.2 PROBLEM STATEMENT
2. DESIGN EXAMPLE PROBLEM 1A
IMAGE: AGRICULTURAL BUILDING
22 2.1 DETERMINATION
STEP 1 IDENTIFY THE OPENINGS
STEP 2 CHECK OPEN BUILDING REQUIREMENTS
STEP 3 CHECK PARTIALLY ENCLOSED BUILDING REQUIREMENTS
23 STEP 4 CHECK ENCLOSED BUILDING REQUIREMENTS
STEP 5 CHECK PARTIALLY OPEN BUILDING REQUIREMENTS
2.2 SUMMARY
24 3. DESIGN EXAMPLE PROBLEM 1B
IMAGE: AGRICULTURAL BUILDING
3.1 DETERMINATION OF ENCLOSURE
STEP 1 IDENTIFY THE OPENINGS
STEP 2 CHECK OPEN BUILDING REQUIREMENTS
25 STEP 3 CHECK PARTIALLY ENCLOSED BUILDING REQUIREMENTS
3.2 SUMMARY
4. ADDITIONAL INFORMATION
28 DESIGN EXAMPLE 2 TOPOGRAPHIC EFFECTS
OVERVIEW
OUTLINE
PROBLEM 2A-ESCARPMENT-SAN FRANCISCO HELMET ROCK
29 FIGURE 2-1 EXAMPLE SITE NEAR HELMENT ROCK, SAN FRANCISCO
FIGURE 2-2 GOOGLE EARTH TOPOGRAPHIC SECTION WITH NOTATIONS ADDED
30 FIGURE 2-3 IDEALIZATION OF 2D ESCARPMENT ACCORDING TO FIGURE 26.8-1
DETERMINATION OF TOPOGRAPHIC EFFECT BY SECTION 26.8
31 FIGURE 2-4 PROVIDES Kzt FOR z BETWEEN 0 AND 200 FEET ELEVATION AT THIS SITE
PROBLEM 2B-EFFECT OF STRUCTURE LOCATION RELATIVE TO HILL FEATURE FOR Kzt
32 FIGURE 2-5 VARIATION OF Kzt WITH STRUCTURE LOCATION
PROBLEM 2C- 3D AXISYMMETRIC HILL-AMITY, OREGON
33 FIGURE 2-6 EXAMPLE SITE NEAR AMITY, OREGON
FIGURE 2-7 TOPOGRAPHIC SECTION PROVIDED BY GOOGLE EARTH WITH NOTATIONS ADDED
34 FIGURE 2-8 IDEALIZATION OF 2D AXISYMMETRIC HILL ACCORDING TO FIGURE 26.8-1
DETERMINATION OF TOPOGRAPHIC EFFECT BY SECTION 26.8
35 FIGURE 2-9 EXAMPLE 2B Kzt FOR SITE LOCATED AT PEAK OF 3D AXISYSMMETRIC HILL
36 PROBLEM 2D-DIRECTION-SPECIFIC TOPOGRAPHIC SPEED UP
FIGURE 2-10 DIRECTION-SPECIFIC EXPOSURE AND TOPOGRAPHIC EFFECTS
37 FIGURE 2-11 HILL GEOMETRY AT 45-DEGREE AZIMUTH SECTIONS
38 TABLE 2-1 HILL GEOMETRY PARAMETERS
TABLE 2-2 SUMMARY OF THE CRITICAL WIND EFFECT DIRECTIONS BY DESIGN PROCEDURE
39 FIGURE 2-12 PROBLEM 2D AZIMUTH PLOT OF Kzt, Kz, and Kzt, Kz AT ELEVATION 33 FEET
SUMMARY
ADDITIONAL INFORMATION
40 DESIGN EXAMPLE 3A EXPOSURE CATEGORY/SURGACE ROUGHNESS CATEGORY
OVERVIEW
FIGURE 3A-1, ASCE 7 FIGURE C26.7-8 DETERMINATION OF WIND LOADS FROM DIFFERENT DIRECTIONS
OUTLINE
41 1. EXPOSURE AND SURFACE ROUGHNESS CATEGORIES
1.1 WIND DIRECTION AND SECTORS
FIGURE 3A-2 SITE IN TRACY, CA
42 1.2 SURFACE ROUGHNESS CATEGORY
FIGURE 3A-3 ASCE 7 TABLE C26.7-1
43 FIGURE 3A-4 ASCE 7 FIGURE C26.7-2
44 FIGURE C26.7-3 EXPOSURE B WITH UPWIND OPEN PATCHES SECTOR ANALYSIS
45 FIGURE C26.7-4 MINIMUM AREA OF INDIVIDUAL OPEN PATCHES AFFECTING QUALIFICATION OF EXPOSURE B
46 2. DESIGN EXAMPLE 3A-EXPOSURE CATEGORY/SURFACE ROUGHNESS CATEGORY
SECTOR 1
CATEGORY C
CATEGORY B
SECTOR 2
CATEGORY C
47 FIGURE 3A-7 SECTOR 1 AND 2
48 SECTOR 3
CATEGORY C
SECTOR 4
CATEORY B
49 FIGURE 3A-8 SECTORS 3 AND 4
SECTOR 5
CATEORY B
50 SECTOR 6
CATEGORY B
51 FIGURE 3A-9 SECTORS 5 AND 6
52 FIGURE 3A-10 OPEN PATCH DISTANCE
53 FIGURE 3A-11 OPEN PATCH DISTANCE
54 SECTOR 7
CATEGORY B
SECTOR 8
CATEGORY B
55 FIGURE 3A-12 SECTORS 7 AND 8
56 3. EXPOSURE REQUIREMENTS
TABLE 3A-1 EXPOSURE REQUIREMENTS
58 DESIGN EXAMPLE 3B DETERMINATION OF AN INTERMEDIATE EXPOSURE AT A TRANSITION ZONE
OVERVIEW
OUTLINE
PROBLEM STATEMENT
DETERMINE THE FOLLOWING
59 1. SITE TOPOGRAPHIC INFORMATION
FIGURE 3B-1 SECTOR 8 AERIAL IMAGERY
2. CALCULATION OF INTERMEDIATE VELOCITY PRESSURE COEFFICIENT
2.1 DETERMINE ROUGHNESS LENGTHS AND HEIGHTS
60 FIGURE 3B-2 SECTOR 8 ROUGHNESS CHANGES
2.2 CALCULATE (α) AND zg AT STATION 1
EQUATION C26.10-3
EQUATION C26.10-4
2.3 CALCULATE THE VELOCITY PRESSURE COEFFICIENTS AT STATION 1
EQUATION C26.10-1
61 2.4 CALCULATE THE DISTANCE x0
EQUATION C26.10-8
2.5 CALCULATE THE FUNCTION FΔK(x)
EQUATION C26.10-7
2.6 CALCULATE THE CELOCITY PRESSURE COEFFICIENT INCREMENT ΔK
EQUATION C26.10-6
2.7 CALCULATE THE ADJUSTED Kz VALUE AT STATION 2
EQUATION C26.10-5
2.8 CALCULATE (α) AND zg AT STATION 2
62 2.9 CALCULATE THE VELOCITY PRESSURE COEFFICIENTS AT STATION 2
2.10 CALCULATE THE DISTANCE x0
EQUATION C26.10-8
2.11 CALCULATE THE FUNCTION FΔK(x)
EQUATION C26.10-7
63 2.12 CALCULATE THE VELOCITY PRESSURE COEFFICIENT INCREMENT ΔK
12.13 CALCULATE THE ADJUSTED Kz VALUE AT STATION 3
3. SUMMARY
4. ADDITIONAL INFORMATION AND COMMENTARY
5. ITEM NOT ADDRESSED IN THIS EXAMPLE
64 DESIGN EXAMPLE 4 GUST FACTOR
OVERVIEW
OUTLINE
1. GUST EFFECT VARIABLES
65 2. APPROXIMATE NATURAL FREQUENCY
FIGURE 4-1 BUILDING PROPERTIES
EQUATION 26.11-1
66 EQUATION 26.11-2
EQUATION 26.11-3
EQUATION 26.11-4
FIGURE 4-2 ASCE 7 FIGURE C26.11-1 APPROXIMATE NATURAL FREQUENCY
67 EQUATION C26-11.9
EQUATION C26-11.10
FIGURE 4-3 COMPARISON OF SEISMIC VERSUS WIND
68 3. FLEXIBLE BUILDING GUST FACTOR Gf
FIGURE 4-4 PLAN OF EXAMPLE BUILDING
69 STEP 1 AERODYNAMIC HEIGHT, z
TABLE 26.11-1
STEP 2 TURBULENCE INTENSITY, Iz
EQUATION 26.11-7
STEP 3 INTEGRAL LENGTH SCALE OF TURBULENCE, Lz
EQUATION 26.11-9
70 STEP 4 MEAN HOURLY WIND SPEED, V z
EQUATION 26.11-16
STEP 5 GUST RESPONSE PEAK FACTOR, gR
71 STEP 6 BACKGROUND RESPONSE, Q
EQUATION 26.11-8
STEP 7 REDUCED FREQUENCY, N1
EQUATION 26.11-14
STEP 8 SIZE EFFECT FACTORS, R h , RB, AND RL
72 TABLE 4-1 TURBULENCE COHERENCE FACTORS AND SIZE EFFECT FACTORS
STEP 9 RESONANT RESPONSE FACTOR, R
EQUATION 26.11-13
EQUATION 26.11-12
73 STEP 10 FLEXIBLE STRUCTURE GUST FACTOR, G
EQUATION 26.11-10
4. RIGID BUILDING GUST FACTOR
STEP 1 AERODYNAMIC HEIGHT, z
74 STEP 2 TURBULENCE INTENSITY, Iz
EQUATION 26.11-7
STEP 3 INTEGRAL LENGTH SCALE OF TURBULENCE, Lz
EQUATION 26.11-9
STEP 4 BACKGROUND RESPONSE, Q
EQUATION 26.11-8
75 STEP 5 RIGID RESPONSE GUST EFFECT FACTOR, G
EQUATION 26.11-6
5. CONCLUDING THOUGHTS
76 6. ITEMS NOT ADDRESSED IN THIS EXAMPLE
REFERENCES
78 DESIGN EXAMPLE 5 TORNADO STORM SHELTER
OVERVIEW
79 OUTLINE
1. SHELTER GEOMETRY AND IBC LOAD CRITERIA
1.1 SHELTER GEOMETRY
80 FIGURE 5-1 STORM SHELTER ROOF PLAN
81 FIGURE 5-2 HOST BUILDING ROOF PLAN ABOVE STORM SHELTER
1.2 IBC LOAD CRITERIA
1.2.1 ROOF DEAD LOAD
82 TABLE 5-1 ROOF DEAD LOADS
1.2.2 ROOF LIVE LOAD
2. ICC 500 STORM SHELTER LOAD CRITERIA
2.1 RAIN LOADS
2.2 SHELTER ROOF LIVE LOADS
83 2.3 WIND LOADS
TABLE 5-2 DESIGN VALUES
84 TABLE 5-3 MWFRS WIND LOADS
85 TABLE 5-4A C&C WALL WIND LOADS
86 TABLE 5-4B C&C ROOF WIND LOADS
87 2.4 CONNECTIONS TO THE HOST BUILDING
2.5 DEBRIS HAZARDS
2.5.1 WIND-BORNE DEBRIS MISSILE IMPACT
TABLE 5-5 WIND-BORNE MISSILE SPEED
88 2.5.2 FALLING DEBRIS/COLLAPSE LIVE LOAD
TABLE 5-6 COLLAPSE LOAD
89 3. ROOF DESIGN
3.1 COMPOSITE DECK DESIGN
TABLE 5-7 DESIGN LOADS FOR COMPOSITE DECK DESIGN
EQUATION 16-8
EQUATION 16-10
EQUATION 16-12
EQUATION 16-13
EQUATION 16-15
EQUATION 16-1
EQUATION 16-3
EQUATION 16-14
EQUATION 16-16
90 3.2 CONNECTION BETWEEN SLAB AND JOISTS
91 ACI 318 EQUATION 17.4.2.1A
FIGURE 5-3 BREAKOUT CONE FOR HEADED STUD CONNECTION TO STEEL JOIST
92 3.3 JOIST DESIGN
TABLE 5-8 JOIST LOADS
EQUATION 16-8
EQUATION 16-10
EQUATION 16-12
EQUATION 16-13
EQUATION 16-15
93 4. WALL DESIGN
4.1 EXTERIOR WALL DESIGN
FIGURE 5-4 EXTERIOR WALL DESIGN CASES
94 4.1.1 BEARING WALL CASE
TABLE 5-9 DOWNWARD DESIGN LOADS
95 FIGURE 5-5 BEARING WALL CASE (A) LOADING (NORTH-SOUTH WALLS)
96 4.1.2 SHEAR WALL CASE
FIGURE 5-6 WIND PRESSURES FOR WIND IN TWO ORTHOGONAL DIRECTIONS
FIGURE 5-7 WIND PRESSURES FOR WIND 45 DEGREES TO TWO ORTHOGONAL DIRECTIONS
97 TABLE 5-10 MWFRS LOADS
FIGURE 5-8 WIND PRESSURES FOR WIND IN EAST-WEST DIRECTION
99 FIGURE 5-9 SHEAR WALL CASE LOADING (NORTH-SOUTH WALLS)
4.1.3 EXTERIOR WALL DESIGN
100 4.2 INTERIOR WALL DESIGN
5. FOUNDATION DESIGN
5.1 UPLIFT CHECK
101 5.2 CONTINUOUS FOOTING DESIGN
6. CONNECTION DESIGN
102 FIGURE 5-10 TOP OF WALL CONNECTION DETAILS
103 FIGURE 5-11 BOTTOM OF WALL CONNECTION DETAILS
104 7. ITEMS NOT ADDRESSED IN THIS EXAMPLE
106 DESIGN EXAMPLE 6 HIGH WINDS EXAMPLE
OVERVIEW
FIGURE 6-1 BUILDING PLAN AND ELEVATION
OUTLINE
107 1. DETERMINE WIND LOAD DESIGN PROCEDURE
2. CHAPTER 27-PART 1: ENCLOSED, PARTIALLY ENCLOSED, AND OPEN BUILDINGS OF ALL HEIGHTS
108 FIGURE 6-2 ASCE 7 TABLE 27.2-1
STEP 1 DETERMINE RISK CATEGORY OF BUILDING
109 STEP 2 DETERMINE THE BASIC WIND SPEED, V, FOR THE APPLICABLE RISK CATEGORY
FIGURE 6-3 ASCE/SEI HAZARD TOOL RESULTS
110 STEP 3 DETERMINE WIND LOAD PARAMETERS
111 STEP 4 DETERMINE VELOCITY PRESSURE EXPOSURE COEFFICIENT
112 FIGURE 6-4 ASCE 7 TABLE 26.10-1
113 STEP 5 DETEMINE VELOCITY PRESSURE qz
EQUATION 26.10-1
114 STEP 6 DETERMINE EXTERNAL PRESSURE COEFFICIENT
FIGURE 6-5 ASCE 7 FIGURE 27.3-1
115 FIGURE 6-5 (CONTINUED) ASCE 7 FIGURE 27.3-1
116 STEP 7 CALCULATE WIND PRESSURE, p, ON EACH BUILDING SURFACE
EQUATION 27.3-1
118 FIGURE 6-6 EAST – WEST DIRECTION MWFRS BUILDING PRESSURES
120 FIGURE 6-7 NORTH-SOUTH DIRECTION MWFRS BUILDING PRESSURES
3. DETERMINE WIND LOAD DESIGN PROCEDURE-COMPONENTS AND CLADDING (C&C)
121 4. CHAPTER 30- PART 1 LOW-RISE BUILDINGS
FIGURE 6-8 ASCE 7 TABLE 30.3-1
122 STEP 6 DETERMINE EXTERNAL PRESSURE COEFFICIENT
123 FIGURE 6-9 ASCE 7 FIGURE 30.3-1
124 FIGURE 6-10 ASCE 7 FIGURE 30.3-2A
125 EQUATION 30.3-1
126 FIGURE 6-11 ASCE 7 FIGURE C30-1
FIGURE 6-12 BUILDING CONFIGURATION
128 DESIGN EXAMPLE 7A WIND FORCES ON A SIMPLE DIAPHRAGM BUILDING-PART 2 METHOD
OVERVIEW
129 OUTLINE
1. BUILDING AND SITE INFORMATION
1.1 BUILDING INFORMATION
130 FIGURE 7A-1 TYPICAL FLOOR PLAN
131 FIGURE 7A-2A BUILDING ELEVATION (HIP ROOF BUILDING)
FIGURE 7A-2B BUILDING ELEVATION (FLAT ROOF BUILDING)
1.2 SITE INFORMATION
2. DETERMINE APPLICABILITY OF SIMPLIFIED METHOD
133 3. WIND LOAD PARAMETERS SPECIFIED IN CHAPTER 26
134 4. DETERMINE SIMPLIFIED DESIGN WIND PRESSURES
TABLE 7A-1 HIP ROOF ps30 PRESSURES
135 TABLE 7A-2 FLAT ROOF ps30 PRESSURES
136 5. DETERMINE ADJUSTMENT FACTOR FOR BUILDING HEIGHT AND EXPOSURE
TABLE 7A-3 HIP ROOF ADJUSTMENT FACTORS
6. DETERMINE ADJUSTED SIMPLIFIED DESIGN WIND PRESSURES
EQUATION 28.5-1
TABLE 7A-4 ADJUSTED HIP ROOF DESIGN PRESSURES, CASE A
137 FIGURE 7A-6A WIND PRESSURE DISTRIBUTION (HIP ROOF BUILDING), CASE A
138 TABLE 7A-5 HIP ROOF WIND BASE SHEAR, CASE A
TABLE 7A-6 ADJUSTED HIP ROOF DESIGN PRESSURES, CASE B
139 FIGURE 7A-6B WIND PRESSURE DISTRIBUTION (HIP ROOF BUILDING) CASE B
TABLE 7A-7 HIP ROOF WIND BASE SHEAR, CASE B
140 TABLE 7A-8 HIP ROOF MINIMUM WIND BASE SHEAR, CASE A
TABLE 7A-9 HIP ROOF MINIMUM WIND BASE SHEAR CASE B
141 TABLE 7A-10 ADJUSTED FLAT ROOF DESIGN PRESSURES
FIGURE 7A-6C WIND PRESSURE DISTRIBUTION (FLAT ROOF BUILDING) CASE A
142 TABLE 7A-11 FLAT ROOF WIND BASE SHEAR CASE A
FIGURE 7A-6D WIND PRESSURE DISTRIBUTION (FLAT-ROOF BUILDING) CASE B
143 TABLE 7A-12 FLAT ROOF WIND BASE SHEAR CASE B
7. DISTRIBUTION OF HORIZONTAL WIND LOADS ALONG HEIGHT
144 TABLE 7A-13 HIP ROOF DIAPHRAGM REACTIONS, CASE A
TABLE 7A-14 HIP ROOF DIAPHRAGM REACTIONS CASE B
145 TABLE 7A-15 FLAT ROOF DIAPHRAGM REACTIONS CASE A
TABLE 7A-16 FLAT ROOF DIAPHRAGM REACTIONS CASE B
146 8. VERTICAL DISTRIBUTION OF WIND UPLIFT FORCES
TABLE 7A-17 HIP ROOF GROSS UPLIFT FORCES CASE A
TABLE 7A-18 HIP ROOF GROSS UPLIFT FORCES CASE B
147 TABLE 7A-19 FLAT ROOF GROSS UPLIFT FORCES CASE A
TABLE 7A-20 FLAT ROOF GROSS UPLIFT FORCES CASE B
9. ITEMS NOT ADDRESSED IN THIS EXAMPLE
148 DESIGN EXAMPLE 7B WIND FORCES ON A SIMPLE DIAPHRAGM BUILDING-PART 1 METHOD
OVERVIEW
OUTLINE
149 1. BUILDING AND SITE INFORMATION
1.1 BUILDING INFORMATION
FIGURE 7B-1 TYPICAL FLOOR PLAN
150 FIGURE 7B-2 BUILDING ELEVATION (HIP-ROOF BUILDING)
1.2 SITE INFORMATION
2. WIND LOAD PARAMETERS SPECIFIED IN CHAPTER 26
151 3. DETERMINE VELOCITY PRESSURE EXPOSURE COEFFICIENT
4. DETERMINE VELOCITY PRESSURE
152 EQUATION 26.10-1
TABLE 7B-1 VELOCITY PRESSURE
5. DETERMINE EXTERNAL PRESSURE COEFFICIENT
153 TABLE 7B-2 HIP ROOF PRESSURE COEFFICIENTS, CASE A
FIGURE 7B-3A WIND PRESSURE DISTRIBUTION (HIP ROOF BUILDING) CASE A
154 TABLE 7B-3 HIP ROOF PRESSURE COEFFICIENTS CASE B
FIGURE 7B-3B WIND PRESSURE DISTRIBUTION (HIP ROOF BUILDING) CASE B
155 FIGURE 7B-3C WIND PRESSURE DISTRIBUTION (HIP ROOF BUILDING) CASE B
156 6. CALCULATE WIND PRESSURE
EQUATION 28.3-1
TABLE 7B-4 HIP ROOF DESIGN WIND PRESSURES, p
157 TABLE 7B-5 HIP ROOF WIND BASE SHEAR CASE A
158 TABLE 7B-6 HIP ROOF BASE WIND SHEAR, CASE B
TABLE 7B-7 HIP ROOF MINIMUM WIND BASE SHEAR CASE A
159 TABLE 7B-8 HIP ROOF MINIMUM WIND BASE SHEAR CASE B
7. DISTRIBUTION OF HORIZONTAL WIND LOADS ALONG HEIGHT
160 TABLE 7B-9 HIP ROOF DIAPHRAGM REACTIONS CASE A
161 TABLE 7B-10 HIP ROOF DIAPHRAGM REACTIONS CASE B
8. VERTICAL DISTRIBUTION OF WIND UPLIFT FORCES
162 TABLE 7B-11 HIP ROOF GROSS UPLIFT FORCES, CASE A
TABLE 7B-12 HIP ROOF GROSS UPLIFT FORCES, CASE B
163 9. DISCUSSION ON COMPARISON OF PART 1 AND PART 2 METHODS
TABLE 7B-13 HIP ROOF WIND LOAD COMPARISON
10. ITEMS NOT ADDRESSED IN THIS EXAMPLE
164 DESIGN EXAMPLE 8A WIND FORCES ON A THREE STORY L-SHAPED BUILDING
OVERVIEW
165 OUTLINE
1. BUILDING LOCATION, USE, AND GEOMETRY
1.1 GIVEN INFORMATION
166 FIGURE 8A-1 TYPICAL FLOOR FRAMING PLAN
167 FIGURE 8A-2 ROOF FRAMING PLAN
168 FIGURE 8A-3 TYPICAL BUILDING SECTION AT EXTERIOR WALL
169 2. CALCULATION OF VELOCITY PRESSURES
2.1 DETERMINATION OF RISK CATEGORY
2.2 DETERMINATION OF BASIC WIND SPEED
2.3 DETERMINATION OF WIND DIRECTIONALITY FACTOR
170 2.4 DETERMINATION OF EXPOSURE CATEGORY
2.5 DETERMINATION OF GROUND ELEVATION FACTOR
2.6 DETERMINATION OF GROUND ELEVATION FACTOR
171 2.7 DETERMINATION OF GUST EFFECT FACTOR
2.8 DETERMINATION OF ENCLOSURE CLASSIFICATION AND INTERNAL PRESSURE COEFFICIENT
172 2.9 DETERMINATION OF MEAN ROOF HEIGHT AND VELOCITY PRESSURE EXPOSURE COEFFICIENT
2.10 DETERMINATION OF VELOCITY PRESSURE
173 3. DETERMINATION OF EXTERNAL PRESSURE COEFFICIENTS
3.1 DETERMINATION OF WALL PRESSURE COEFFICIENTS
TABLE 8A-1 WALL PRESSURE COEFFICIENTS
174 3.2 DETERMINATION OF ROOF PRESSURE COEFFICIENTS
TABLE 8A-2 ROOF PRESSURE COEFFICIENTS
3.3 DETERMINATION OF PARAPET PRESSURE COEFFICIENTS
TABLE 8A-3 PARAPET PRESSURE COEFFICIENTS
175 4. APPLICATION OF WIND PRESSURES
4.1 DETERMINATION OF DESIGN WIND PRESSURES
TABLE 8A-4 SUMMARY OF WIND PRESSURES
176 TABLE 8A-4 SUMMARY OF WIND PRESSURES (continued)
177 5. VERTICAL DISTRIBUTION OF WIND LOADS TO DIAPHRAGMS
5.1 VERTICAL DISTRIBUTION OF WIND LOADS TO DIAPHRAGMS
TABLE 8A-5 WIND FORCES AT EACH DIAPHRAGM LEVEL
178 6. HORIZONTAL DISTRIBUTION OF WIND LOADS TO BRACED FRAMES
6.1 FLEXIBLE VS RIGID DIAPHRAGMS
6.2 DETERMINATION OF CENTER OF MASS AND CENTER OF RIGIDITY
6.3 HORIZONTAL DISTRIBUTION OF WIND LOADS TO BRACED FRAMES
179 7. DESIGN WIND LOAD CASES
7.1 DESIGN WIND LOAD CASE 1
180 7.2 DESIGN WIND LOAD CASE 2
TABLE 8A-6 LOAD CASE 2
181 7.3 DESIGN WIND LOAD CASES 3 AND 4
8. ITEMS NOT ADDRESSED IN THIS EXAMPLE
182 DESIGN EXAMPLE 8B COMPONENTS AND CLADDING WIND FORCES ON A THREE-STORY, L-SHAPED BUILDING
OVERVIEW
OUTLINE
183 1. BUILDING LOCATION, USE, AND GEOMETRY
1.1 GIVEN INFORMATION
184 FIGURE 8B-1 TYPICAL FLOOR FRAMING PLAN
185 FIGURE 8B-2 ROOF FRAMING PLAN
186 FIGURE 8B-3 TYPICAL BUILDING SECTION AN EXTERIOR WALL
187 2. CALCULATION OF VELOCITY PRESSURES
2.1 DETERMINATION OF RISK CATEGORY
2.2 DETERMINATION OF BASIC WIND SPEED
2.3 DETERMINATION OF WIND DIRECTIONALITY FACTOR
188 2.4 DETERMINATION OF EXPOSURE CATEGORY
2.5 DETERMINATION OF TOPOGRAPHIC FACTOR
2.6 DETERMINATION OF GROUND ELEVATION FACTOR
189 2.7 DETERMINATION OF GUST EFFECT FACTOR
2.8 DETERMINATION OF MEAN ROOF HEIGHT AND VELOCITY PRESSURE EXPOSURE COEFFICIENT
190 2.9 DETERMINATION OF VELOCITY PRESSURE
3. DETERMINATION OF EXTERNAL PRESSURE COEFFICIENTS
3.1 DETERMINATION OF EFFECTIVE WIND AREAS
TABLE 8B-1 EFFECTIVE WIND AREAS OF BUILDING ELEMENTS
191 3.2 DETERMINATION OF END ZONE WIDTHS
3.3 DETERMINATION OF WALL PRESSURE COEFFICIENTS
TABLE 8B-2 WALL PRESSURE COEFFICIENTS
192 3.4 DETERMINATION OF ROOF PRESSURE COEFFICIENTS
TABLE 8B-3 ROOF PRESSURE COEFFICIENTS
3.5 DETERMINATION OF PARAPET PRESSURE COEFFICIENTS
TABLE 8B-4 PARAPET PRESSURE COEFFICIENTS
193 4. APPLICATION OF WIND PRESSURES
EQUATION 30.3-1
4.1 DETERMINATION OF DESIGN WIND PRESSURE FOR A TYPICAL EXTERIOR STUD
TABLE 8B-5 C&C WIND PRESSURES FOR A TYPICAL EXTERIOR STUD
4.2 DETERMINATION OF DESIGN WIND PRESSURE FOR A THIRD-FLOOR STUD WITH A PARAPET
TABLE 8B-6 C&C WIND PRESSURES FOR A THIRD-FLOOR STUD WITH PARAPET
194 4.3 DETERMINATION OF DESIGN WIND PRESSURE FOR A TYPICAL ROOF FRAMING MEMBER
TABLE 8B-7 C&C WIND PRESSURES FOR A TYPICAL ROOF FRAMING MEMBER
4.4 DETERMINATION OF DESIGN WIND PRESSURE FOR WALL CLADDING
TABLE 8B-8 C&C WIND PRESSURES FOR WALL CLADDING
4.5 DETERMINATION OF DESIGN WIND PRESSURE FOR ROOF CLADDING
TABLE 8B-9 C&C WIND PRESSURES FOR ROOF CLADDING
195 4.6 DETERMINATION OF DESIGN WIND PRESSURE FOR A WINDOW UNIT
TABLE 8B-10 C&C WIND PRESSURES FOR A WINDOW UNIT
4.7 USE OF C&C WIND PRESSURES FOR STRUCTURAL DESIGN
5. ITEMS NOT ADDRESSED IN THIS EXAMPLE
196 DESIGN EXAMPLE 9 DESIGN WIND FORCES FOR A 14-STORY OFFICE BUILDING
OVERVIEW
OUTLINE
1. PROBLEM STATEMENT
1.1 USE THE WIND LOADS PROVISIONS TO DETERMINE
197 FIGURE 9-1 EXAMPLE BUILDING PLAN, ELEVATION, AND DIMENSIONS
2. SOLUTION
2.1 MWFRS
198 FIGURE 9-2 STEPS TO DETERMINE MWFRS WIND LOADS FOR ENCLOSED, PARTIALLY ENCLOSED, AND OPEN BUILDINGS OF ALL HEIGHTS, TABLE 27.2-1
199 EQUATION 26.10-1
200 FIGURE 9-3 VELOCITY PRESSURE EXPOSURE COEFFICIENTS, Kh, AND Kz, TABLE 26.10-1
2.2 EVALUATION OF GUST EFFECT FACTOR, G OR Gf
201 EQUATION 26.11-2
TABLE 9-1 BUILDING AND ENVIRONMENTAL ATTRIBUTES
TABLE 9-2 TERRAIN EXPOSURE CONSTANTS FOR FLEXIBLE BUILDING CALCULATIONS-EXPOSURE B ( TABLE 26.11-1 )
202 TABLE 9-3 CALCULATED PARAMETERS FOR FLEXIBLE BUILDING CALCULATIONS
2.3 EVALUATION OF DESIGN WIND PRESSURE
EQUATION 27.3-1
203 TABLE 9-4 WALL PRESSURE COEFFICIENTS, Cp (FIGURE 27.3-1)
204 TABLE 9-5 CALCULATION OF STORY NET PRESSURES
205 FIGURE 9-4 STORY NET PRESSURES
2.4 COMPONENT AND CLADDING PRESSURES
EQUATION 30.5-1
206 FIGURE 9-5 WIND PRESSURE ZONES (ASCE FIGURE 30.5-1)
TABLE 9-6 CALCULATION OF DESIGN WIND PRESSURE FOR COMPONENTS AND CLADDING
207 3. DISCUSSION
3.1 FLEXIBLE STRUCTURE
3.2 IMPACT OF PODIUM
3.3 WIND TUNNEL TEST
3.4 EFFECTIVE AREA FOR DESIGN OF COMPONENTS AND CLADDING
208 DESIGN EXAMPLE 10 ROOFTOP SOLAR PANELS FOR BUILDINGS OF ALL HEIGHTS WITH FLAT ROOFS OR GABLE OR HIP ROOFS WITH SLOPES LESS THAN 7 DEGREES-SMALL COMMERCIAL BUILDING
OVERVIEW
209 OUTLINE
210 1. BUILDING GEOMETRY AND LOADS
1.1 GIVEN INFORMATION
211 FIGURE 10-1 ELEVATION VIEW
FIGURE 10-2 PLAN VIEW
212 2. WIND DESIGN
FIGURE 10-3 ARAY TOP VIEW
213 2.1 CODE DESIGN APPLICABILITY
TABLE 10-1 CODE DESIGN APPLICABILITY
214 2.2 VELOCITY PRESSURE
TABLE 26.9-1
215 EQUATION 26.10-1
2.3 DETERMINING EFFECTIVE AND NORMALIZED WIND AREAS
217 2.4 PARAPET HEIGHT FACTOR
2.5 PANEL CHORD FACTOR
2.6 EXPOSURE FACTOR
219 FIGURE 10-4 ARRAY TOP VIEW WITH DEFINED AREAS
FIGURE 10-5 ARRAY TOP VIEW WITH DEFINED AREAS
221 2.7 NOMINAL NET PRESSURE COEFFICIENT
TABLE 10-2 (GCrn)nom EQUATIONS
222 TABLE 10-3 (GCrn)nom CALCULATION
2.8 NET PRESSURE COEFFICIENT
EQUATION 29.4-6
223 TABLE 10-4 NET EXPOSURE COEFFICIENT (GCrn) CALCULATION
2.9 DESIGN WIND PRESSURE
EQUATION 29.4-5
2.9.1 SOLAR PANEL DESIGN
224 TABLE 10-5 SOLAR PANEL DESIGN WIND LOAD CALCULATION
2.9.2 SOLAR PANEL TO TRAY CONNECTION DESIGN
TABLE 10-6 SOLAR PANEL TO TRAY CONNECTION DESIGN WIND LOAD CALCULATION
225 2.9.3 TRAY TO ROOF DESIGN
FIGURE 10-6 ARRAY TOP VIEW WITH DEFINED SHARING AREAS
226 TABLE 10-7 BALLAST DESIGN WIND LOAD CALCULATION
227 TABLE 10-8 SOLAR PANEL DESIGN POINT LOAD CALCULATION
228 2.10 ROOF DESIGN
2.10.1 BALLASTED ARRAYS
2.10.2 ATTACHED ARRAYS
229 3. ITEMS NOT ADDRESSED IN THIS DESIGN EXAMPLE
4. REFERENCES
230 DESIGN EXAMPLE 11 ROOFTOP SOLAR PANELS OF ALL HEIGHTS WITH FLAT OR GABLE OR HIP ROOFS WITH SLOPES LESS THAN 7 DEGREES-LARGE COMMERCIAL BUILDING
OVERVIEW
OUTLINE
1. BUILDING GEOMETRY AND LOADS
1.1 GIVEN INFORMATION
231 FIGURE 11-1 ELEVATION VIEW
232 FIGURE 11-2 PLAN VIEW
2. WIND DESIGN
233 FIGURE 11-3 ARRAY TOP VIEW
234 2.1 CODE DESIGN APPLICABILITY
TABLE 11-1 CODE DESIGN APPLICABILITY
235 2.2 VELOCITY PRESSURE
TABLE 26.9-1
236 EQUATION 26.10-1
2.3 DETERMINING EFFECTIVE AND NORMALIZED WIND AREAS
237 2.4 PARAPET HEIGHT FACTOR
238 2.5 PANEL CHORD FACTOR
2.6 EXPOSURE FACTOR
239 FIGURE 11-4 ARRAY TOP VIEW WITH DEFINED AREAS
240 FIGURE 11-5A ARRAY 1S TOP VIEW WITH DEFINED AREAS
242 FIGURE 11-5B ARRAY 1C TOP VIEW WITH DEFINED AREAS
243 FIGURE 11-5C ARRAY TOP VIEW WITH DEFINED AREAS
244 2.7 NOMINAL NET PRESSURE COEFFICIENT
245 TABLE 11-2 (GCrn)nom EQUATIONS
TABLE 11-3 (GCrn)nom CALCULATION
2.8 NET PRESSURE COEFFICIENT
EQUATION 29.4-6
246 TABLE 11-4 NET EXPOSURE COEFFICIENT (GCrn) CALCULATION
2.9 DESIGN WIND PRESSURE
EQUATION 29.4-5
2.9.1 SOLAR PANEL DESIGN
TABLE 11-5 SOLAR PANEL DESIGN WIND LOAD CALCULATION
247 3. ITEMS NOT ADDRESSED IN THIS DESIGN EXAMPLE
4. REFERENCES
248 DESIGN EXAMPLE 12 ROOFTOP SOLAR PANELS PARALLEL TO THE ROOF SURFACE ON BUILDINGS OF ALL HEIGHTS AND ROOF SLOPES – SINGLE FAMILY RESIDENCE
OVERVIEW
249 OUTLINE
1. BUILDING GEOMETRY AND LOADS
1.1 GIVEN INFORMATION
250 FIGURE 12-1 ELEVATION VIEW
FIGURE 12-2 PLAN VIEW
251 2. WIND DESIGN
FIGURE 12-3 ARRAY TOP VIEW
252 2.1 CODE DESIGN APPLICABILITY
TABLE 12-1 CODE DESIGN APPLICABILITY
253 2.2 VELOCITY PRESSURE
TABLE 26.9-1
254 EQUATION 26.10-1
2.3 DETERMINING EFFECTIVE WIND AREAS
255 FIGURE 12-4 ARRAY FRAMING VIEW
256 TABLE 12-2 EFFECTIVE AREA (A) FOR RAIL TO ROOF CONNECTION
2.4 EXTERNAL PRESSURE COEFFICIENT
257 FIGURE 30.3-2C
258 TABLE 12-3 GCp CALCULATION
2.5 EXPOSURE FACTOR
259 FIGURE 12-5 ARRAY TOP VIEW WITH DEFINED AREAS
260 FIGURE 12-6 ARRAY FRAMING VIEW WITH DEFINED GCp FACTORS ON PANELS
261 2.6 SOLAR ARRAY PRESSURE EQUALIZATION FACTOR
262 TABLE 12-4 PRESSURE EQUALIZATION FACTOR
263 2.7 DESIGN WIND PRESSURE
EQUATION 29.4-7
FIGURE 12-7 SOLAR ARRAY DEPICTION SHOWING PANEL TO RAIL CONNECTION
2.7.1 SOLAR PANEL DESIGN
264 TABLE 12-5 SOLAR PANEL DESIGN WIND LOAD CALCULATION
2.7.2 SOLAR PANEL TO RAIL CONNECTION DESIGN
265 TABLE 12-6 SOLAR PANEL TO RAIL CONNECTION DESIGN WIND LOAD CALCULATION
2.7.3 RAIL DESIGN
266 TABLE 12-7 RAIL DESIGN WIND LOAD CALCULATION
267 2.7.4 RAIL TO ROOF CONNECTION DESIGN
FIGURE 12-8 ARRAY FRAMING VIEW
268 FIGURE 12-9 SOLAR ARRAY DEPICTION SHOWING RAIL TO ROOF CONNECTIONS
TABLE 12-8 RAIL TO ROOF CONNECTION DESIGN WIND LOAD CALCULATION
269 2.8 ROOF DESIGN
3. ITEMS NOT ADDRESSED IN THIS DESIGN EXAMPLE
270 4. REFERENCES
272 DESIGN EXAMPLE 13 ROOFTOP SOLAR PANELS PARALLEL TO ROOF SURFACE ON BUILDINGS OF ALL HEIGHTS AND ROOF SLOPES SPORTS COMPLEX
OVERVIEW
OUTLINE
1. BUILDING GEOMETRY AND LOADS
1.1 GIVEN INFORMATION
273 FIGURE 13-1 ELEVATION VIEW
274 FIGURE 13-2 PLAN VIEW
2. WIND DESIGN
275 FIGURE 13-3 ARRAY TOP VIEW
276 2.1 CODE DESIGN APPLICABILITY
TABLE 13-1 CODE DESIGN APPLICABILITY
277 2.2 VELOCITY PRESSURE
TABLE 26.9-1
278 EQUATION 26.10-1
2.3 DETERMINING EFFECTIVE WIND AREAS
2.4 EXTERNAL PRESSURE COEFFICIENT
279 FIGURE 30.3-2C
TABLE 13-2 GCp CALCULATION
280 2.5 EXPOSURE FACTOR
281 FIGURE 13-4 ARRAY TOP VIEW
282 FIGURE 13-5A ARRAY 1W TOP VIEW
283 FIGURE 13-5B ARRAY 1E TOP VIEW
285 FIGURE 13-5C ARRAY 2W TOP VIEW
286 FIGURE 13-5D ARRAY 2E TOP VIEW
287 FIGURE 13-5E ARRAY 3C TOP VIEW
289 2.6 SOLAR ARRAY PRESSURE EQUALIZATION FACTOR
TABLE 13-3 PRESSURE EQUALIZATION FACTOR
2.7 DESIGN WIND PRESSURE
EQUATION 29.4-7
2.7.1 SOLAR PANEL DESIGN
290 TABLE 13-4 SOLAR PANEL DESIGN WIND LOAD CALCULATION
2.8 DISCUSSION
291 3. ITEMS NOT ADDRESSED IN THIS DESIGN EXAMPLE
4. REFERENCES
292 DESIGN EXAMPLE 14 SEISMIC DESIGN OF A LOW-PROFILE UNATTACHED SOLAR PV SYSTEM ON A LOW SLOPE ROOF
OVERVIEW
OUTLINE
1. SOLAR ARRAY GEOMETRY AND LOADS
1.1 GIVEN INFORMATION
293 FIGURE 14-1 ARRAY
294 2. SEISMIC DESIGN
2.1 EVALUATE SEISMIC REQUIREMENTS FOR PERMITTING UNATTACHED SOLAR ARRAYS ON THE ROOF
2.2 EVALUATE WHETHER THE ARRAY IS ADEQUATELY LOW-PROFILE
2.3 DETERMINE THE DESIGN SEISMIC DISPLACEMENT δmpv OF THE ARRAY
EQUATION 13.6-1
295 2.4 DETERMINE THE MINIMUM SEPARATION BETWEEN ADJACENT ARRAYS
2.5 DETERMINE THE MINIMUM SEPARATION BETWEEN THE ARRAY AND A FIXED OBJECT ON THE ROOF
2.6 DETERMINE THE AMOUNT OF DIFFERENTIAL MOVEMENT THAT MUST BE ACCOMMODATED BY ALL ELECTRICAL CABLES THAT LEAD FROM ONE ARRAY TO ANOTHER ARRAY, OR FROM AN ARRAY TO A FIXED POINT ON THE ROOF
2.7 DETERMINE THE MINIMUM SEPARATION BETWEEN THE ARRAY AND THER ROOF EDGE
296 2.8 DETERMINE THE REQUIRED SEISMIC INTERCONNECTION STRENGTH WITHIN THE ARRAY
297 2.9 DETERMINE THE REQUIRED STRENGTH OF MEMBERS WITHIN THE ARRAY TO TRANSMIT SEISMIC FORCES TO EACH SUPPORT
EQUATION 13.3-1
298 3. DISCUSSION
4. REFERENCES
300 DESIGN EXAMPLE 15 CONSIDERATION OF GRAVITY LOADS ON EXISTING ROOFS SUPPORTING SOLAR PV ARRAYS
OVERVIEW
OUTLINE
301 FIGURE 15-1 HISTOGRAM OF TYPICAL SOLAR PV AND SOLAR THERMAL PANEL WEIGHTS
1. DESIGN CONSIDERATIONS
1.1 ROOF LIVE LOADS
302 FIGURE 15-2 ROOF LIVE LOAD CAN BE OMITTED WHERE THE CLEAR DISTANCE FROM TOP OF ROOF TO UNDERSIDE OF PANELS IS NO MORE THAN 24 INCHES
1.2 ROOF LIVE LOAD OFFSET
303 1.3 CONCENTRATED LOADS
FIGURE 15-3 IN WOOD FRAMED ROOFS, ROOF SHEATHING INTERCONNECTS RAFTERS SO THAT A CONCENTRATED LOAD ON ONE RAFTER TENDS TO BE SHARED WITH ADJACENT RAFTERS
1.4 CONCRETE SLAB AND STEEL FRAMED ROOFS
304 1.5 WOOD FRAMED ROOFS
1.5.1 TIMBER TRUSSES
1.6 CHANGES SINCE ORIGINAL DESIGN AND CONSTRUCTION
305 1.7 NOMENCLATURE
2. EXAMPLE: EXISTING WOOD FRAMED ROOFS
2.1 GIVEN INFORMATION
2.1.1 LOCATION
306 2.1.2 SOLAR PV LOAD CASES
307 FIGURE 15-4 THREE KINDS OF PV ARRAYS AND ASSOCIATED LOAD CASES
308 FIGURE 15-5 COMMERCIAL BUILDING A ROOF FRAMING, SUPPORTING PV-1 TYPE OF ARRAY AND LOADING
309 2.1.3 WIND VELOCITY PRESSURE
2.1.4 WIND DOWN LOAD ON ORIGINAL BUILDING, AND UNCOVERED AREAS BETWEEN PV PANELS
2.2 WIND DOWN LOAD ON JOISTS FOR THE PV-1 LOAD CASE
310 2.3 WIND DOWN LOAD ON JOISTS FOR THE PV-2 LOAD CASE
313 FIGURE 15-6 FLAT ROOF WIND ZONES FOR AREAS (A) COVERED BY SOLAR PANEL AND (B) NOT COVERED BY SOLAR PANELS
314 2.4 WIND DOWN LOAD ON JOISTS FOR THE PV-3 LOAD CASE
2.5 WIND UPLIFT ON ROOF JOISTS
315 2.5.1 WIND UPLIFT ON MOUNTS
317 2.6 SNOW LOADS
3. GENERALIZATION OF LOADING
318 FIGURE 15-7 MOMENTS ON JOISTS RESULTING FROM CONCENTRATED LOAD FROM PV PANEL MOUNTS
3.1 COMPARISON OF GENERALIZED LOADS
319 TABLE 15-1 LOAD COMBINATIONS
320 3.2 CONCENTRATED LOAD SHARING FACTOR
321 FIGURE 15-8 CONCENTRATED LOAD SHARING FACTOR AS A FUNCTION OF THE SHEATHING/RAFTER RELATIVE STIFFNESS RATIO
TABLE 15-2 SHEATHING/RAFTER RELATIVE STIFFNESS RATIOS FOR CALCULATING
322 TABLE 15-3 SMEARED UNIFORM LOAD
323 3.3 COMPARING LOAD CASES
324 TABLE 15-4 EQUIVALENT UNIFORM JOIST LOADS, BOTH CORRECTED AND UNCORRECTED FOR LOAD DURATION, FOR COMMERCIAL BUILDINGS A AND B
325 3.4 DEMAND-CAPACITY RATIOS (DCRS)
326 TABLE 15-5 COMMERCIAL BUILDING A SHOWING LOAD CASES AND RESULTING STRESSES Fb AND DEMAND CAPACITY RATIOS DCR
327 TABLE 15-6 COMMERCIAL BUILDING B SHOWING LOAD CASES AND RESULTING STRESSES, fb AND DEMAND CAPACITY RATIOS, DCR
328 4. EVALUATION TRIGGERS
4.1 GRAVITY TRIGGER-ROOF JOISTS
4.2 GRAVITY TRIGGERS-GIRDERS AND COLUMNS
329 4.3 FOUNDATIONS
4.4 SEISMIC TRIGGERS
5. SUMMARY OF ROOF JOIST GRAVITY EVALUATION
330 5.1 SHEAR
5.2 CONNECTIONS
5.3 DEFLECTIONS
5.4 PONDING
5.5 DISCUSSION OF TABLES 15-5 AND 15-6
5.5.1 JOIST DEPTH
331 FIGURE 15-9 A STAGGERED MOUNT LAYOUT CREATES A QUASI-UNIFORM LOAD ON THE ROOF JOISTS
332 5.5.2 CONCENTRATED LOADS
5.5.3 DCRS GREATER THAN ONE
6. CONCLUSIONS
333 7. REFERENCES
336 DESIGN EXAMPLE 16 CARPORT SOLAR PV SYSTEMS
OVERVIEW
OUTLINE
337 FIGURE 16-1 FRAMING PLAN
338 FIGURE 16-2 ELEVATION
339 1. BUILDING GEOMETRY AND LOADS
1.1 GIVEN INFORMATION
TABLE 4-1
TABLE 26.10-1
340 1.2 ROOF LIVE LOADS
1.3 SEISMIC DESIGN FORCES
341 TABLE 12.2-1.G-2
EQUATION 12.8-1
1.4 WIND DESIGN FORCES (MWFRS)
342 TABLE 16-1 MWFRS NET PRESSURE COEFFICIENTS FOR CLEAR WIND FLOW
TABLE 16-2 MWFRS NET DESIGN PRESSURES FOR CLEAR WIND FLOW
343 FIGURE 16-3 SUMMARIZES THE NET DESIGN PRESSURES DISTRIBUTION ON THE CROSS BEAM
FIGURE 16-3 MWFRS WIND LOADING DIAGRAM
344 1.5 COMBINATIONS OF LOADS (MWFRS)
1.6 DESIGN REQUIREMENTS FOR MWFRS
345 FIGURE 16-4 APPLIED FORCE DIAGRAM
TABLE 16-3 JOINT LOADS
346 1.7 WIND DESIGN FORCES (C&C)
EQUATION 30.7-1
EQUATION 26.10-1
FIGURE 16-5 SUMMARY OF C&C ZONES
347 TABLE 16-4 C&C NET PRESSURE COEFFICIENTS FOR CLEAR WIND FLOW
TABLE 16-5 C&C NET DESIGN PRESSURES FOR CLEAR WIND FLOW
349 1.8 COMBINATIONS OF LOADS (C&C)
TABLE 16-6 DISTRIBUTED LOADS (y-axis/z-axis) plf
350 FIGURE 16-6 LOAD, SHEAR, AND BENDING MOMENT DIAGRAMS FOR D+0.6W
351 2. ADDITIONAL CONSIDERATIONS
2.1 FOUNDATIONS
2.2 WIND LOADS ACTING ON BEAMS, COLUMNS, AND PURLINS
2.3 SNOW LOADING
FIGURE 16-7 UNBALANCED SNOW LOADING DIAGRAM
352 FIGURE 16-8 PARTIAL SNOW-LOADING DIAGRAM
2.4 CARPORTS WITH A TILT LESS THAN 5 DEGREES
353 2.5 WIND LOADING ON TRANSVERSE FRAMES
354 ICC EVALUATION SERVICE
355 HELPFUL RESOURCES FOR YOUR IBC®
ICC IBC SEAOC WDM 2018
$51.46