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FEMA P 2006 2018

FEMA P 2006 2018

$61.75

P-2006 Example Application Guide for ASCE/SEI 41-13 Seismic Evaluation and Retrofit of Existing Buildings with Additional Commentary for ASCE/SEI 41-17

Published By Publication Date Number of Pages
FEMA 2018 940
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PDF Catalog

PDF Pages PDF Title
1 FEMA P-2006
3 Titlepage
5 Preface
7 Table of Contents
17 List of Figures
31 List of Tables
41 Location of ASCE 41-13 Provisions
43 Chapter 1: Introduction
1.1 Purpose
1.2 Target Audience
1.3 Background
45 1.4 Basic Principles of ASCE 41-13
47 1.5 Scope of the Example Application Guide
1.5.1 Organization of Guide
48 1.5.2 What is Not Covered in the Guide
51 1.6 How to Use this Guide
53 Chapter 2: Guidance on Use of ASCE 41-13
2.1 ASCE 41-13 Overview
55 2.2 Comparison of ASCE 41-13 and ASCE 7-10 Design Principles
2.2.1 New Building Seismic Design Principles
57 2.2.2 ASCE 41-13 Seismic Evaluation and Retrofit Design Principles
60 2.2.3 ASCE 7-10 and ASCE 41-13 Design Examples
2.2.3.1 Overview
2.2.3.2 ASCE 7-10 Example
61 2.2.3.3 ASCE 41-13 Example
62 2.2.3.4 Summary and Comparison
63 2.3 When Should ASCE 41-13 be Used?
66 2.4 What is New in ASCE 41-17?
2.4.1 Chapter 1 General Requirements
2.4.2 Chapter 2 Performance Objectives and Seismic Hazards
68 2.4.2.1 Basic Performance Objective for Existing Buildings
2.4.2.2 Hazards Reduced Nonstructural Performance Level
2.4.3 Chapter 3 Evaluation and Retrofit Requirements
69 2.4.4 Chapter 4 Tier 1 Screening
2.4.5 Chapter 5 Tier 2 Deficiency-Based Evaluation and Retrofit
2.4.6 Chapter 6 Tier 3 Systematic Evaluation and Retrofit
70 2.4.7 Chapter 7 Analysis Procedures and Acceptance Criteria
2.4.7.1 Force-Controlled Action in Linear Analysis
71 2.4.7.2 Nonlinear Analysis
2.4.8 Chapter 8 Foundations and Geologic Site Hazards
2.4.9 Chapter 9 Steel and Iron
72 2.4.10 Chapter 10 Concrete
73 2.4.11 Chapter 11 Masonry
74 2.4.12 Chapter 12 Wood Light Frame
2.4.13 Chapter 13 Architectural, Mechanical, and Electrical Components
2.4.14 Chapter 14 Seismic Isolation and Chapter 15 Design Requirements for Structures with Supplemental Energy Dissipation
75 2.4.15 Chapter 16 System-Specific Performance Procedures
2.5 Tips for Using ASCE 41-13
77 Chapter 3: Performance Objectives and Seismic Hazards
3.1 Overview
3.2 Performance Objectives and Target Building Performance Levels (ASCE 41-13 § 2.2 and § 2.3)
3.2.1 Introduction
78 3.2.2 Basic Performance Objective for Existing Buildings (BPOE) (ASCE 41-13 § 2.2.1)
79 3.2.3 Enhanced Performance Objective (ASCE 41-13 § 2.2.2)
3.2.4 Limited Performance Objective (ASCE 41-13 § 2.2.3)
80 3.2.5 Target Building Performance Levels (ASCE 41-13 § 2.3)
81 3.3 Seismic Hazard (ASCE 41-13 § 2.4)
3.3.1 Example of the General Procedure for Hazard Caused by Ground Shaking (ASCE 41-13 § 2.4.1)
82 BSE-2E: 5%/50-Year Spectral Response Acceleration (ASCE 41 § 2.4.1.3), Capped at BSE-2N
83 BSE-1E: 20%/50-Year Spectral Response Acceleration (ASCE 41 § 2.4.1.4), Capped at BSE-1N
85 3.3.2 Seismic Design Spectra Web Tools
86 3.3.3 Comparison of BSE-1E, BSE-2E, and ASCE 7-10 Design Levels
89 3.3.4 Site-Specific Procedure for Hazards Caused by Ground Shaking (ASCE 41-13 § 2.4.2)
90 3.3.4.1 Ground Motion Scaling
91 3.3.4.2 Maximum Motions from a Single Event
3.3.4.3 Minimum Number of Records
3.3.4.4 Near-Fault Building Sites
92 3.4 Levels of Seismicity
94 3.5 Data Collection Requirements
97 Chapter 4: Analysis Procedures and Acceptance Criteria
4.1 Overview
4.2 Selection of Analysis Procedure (ASCE 41-13 § 7.3)
4.2.1 Tier 1 Screening
98 4.2.2 Tier 2 Deficiency-Based Evaluation and Retrofit
4.2.3 Tier 3 Systematic Evaluation and Retrofit
4.2.3.1 Tier 3 Linear Procedures
99 4.2.3.2 Tier 3 Nonlinear Procedures
100 4.2.4 Examples
4.2.4.1 Tier 2 Deficiency-Based Evaluation and Retrofit Example
103 4.2.4.2 Tier 3 Systematic Evaluation and Retrofit Example
104 4.3 Determination of Forces and Target Displacements (ASCE 41-13 § 7.4)
4.3.1 Introduction
4.3.2 Example of Pseudo Seismic Force Calculations for Linear Static Procedure (ASCE 41-13 § 7.4.1)
105 4.3.2.1 Seismic Design Parameters and Performance Level
4.3.2.2 Alternate Method for Determining Pseudo Seismic Forces
108 4.3.3 Scaling Pseudo Seismic Forces for Linear Dynamic Procedure (ASCE 41-13 § 7.4.2)
4.3.4 Determination of Target Displacement
111 4.4 Primary vs. Secondary Elements (ASCE 41-13 § 7.2.3.3 and ASCE 41-13 § 7.5.1.1)
115 4.5 Force-Controlled and Deformation-Controlled Actions (ASCE 41-13 § 7.5.1.2)
120 4.5.1 J-Factor (ASCE 41-13 § 7.5.2.1.2)
122 4.6 Overturning—Wood Shear Wall Example (ASCE 41-13 § 7.2.8)
4.6.1 Overview
124 4.6.1.1 Application of ASCE 41-13 Methodology to Wood-Framed Shear Walls
125 4.6.2 Spectral Response Acceleration Parameters
4.6.3 Pseudo Seismic Force on the Wall and Seismic Force at Each Level
127 Pseudo Seismic Force to Each Level
128 Evaluate Shear Wall Strength at Each Level
130 4.6.4 Evaluation of Overturning and Strap at the Second Floor
4.6.4.1 Overturning Resisted by the Stabilizing Effects of Gravity Loads Alone at the Second Floor
132 4.6.4.2 Strap Providing Overturning Resistance
133 4.6.4.3 Nails in Strap
135 4.6.4.4 Strap
137 4.6.5 Overturning and Hold-Down at the First Floor
138 4.6.5.1 Overturning Resisted by the Stabilizing Effects of Gravity Loads Alone at the First Floor
139 4.6.5.2 Hold-Down Providing Overturning Resistance
4.6.5.3 Bolts in Hold-Down
141 4.6.5.4 Force-Controlled Components of the Hold-Down
4.6.5.5 Lower-Bound Strength of Hold-Down Body
143 4.6.5.6 Lower-Bound Strength of Net Section on the Hold-Down Post
144 4.6.5.7 Lower-Bound Strength of Tear-Out of Bolt Group
145 4.6.5.8 Force-Controlled Components Not Being Evaluated in Hold-Down Example
4.6.5.9 Demand on Force-Controlled Components of the Hold-Down
147 4.6.5.10 Acceptance Criteria Summary of the Hold-Down Components
148 4.6.6 Hold-Down Anchor-to-Footing Connection
4.6.7 Overturning at the Foundation-Soil Interface
152 4.7 Out-of-Plane Strength of Walls (ASCE 41-13 § 7.2.11.2)
4.7.1 Overview
154 4.7.2 Determine the Spectral Response Acceleration Parameters
4.7.3 Calculate the Out-of-Plane Wall Force per Unit Area, Fp
155 4.7.4 Acceptance Criteria for the Out-of-Plane Masonry Wall Design
156 4.7.5 Calculate the Out-of-Plane Masonry Wall Capacity
160 4.7.6 Check the Masonry Parapet for Out-of-Plane Seismic Forces
163 4.8 Nonstructural Components (ASCE 41-13 Chapter 13)
4.8.1 Introduction
4.8.2 Evaluation and Retrofit Procedures
164 4.8.3 Problem Statement
166 4.8.4 Determine Performance Objective and Level of Seismicity
167 4.8.5 Tier 1 and 2 Evaluation and Tier 2 Deficiency-Based Retrofit
168 4.8.6 Tier 3 Systematic Evaluation and Retrofit
176 4.8.7 Comparison of ASCE 7, ASCE 41-13, and ASCE 41-17 Seismic Design Criteria for Internally Isolated Mechanical Unit Anchorage
179 Chapter 5: Foundations
5.1 Overview
180 5.2 Foundation Design Considerations
181 5.3 ASCE 41-13 Foundation Provisions
183 5.4 ASCE 41-13 Approach to Foundation Evaluation
185 5.5 Soil and Foundation Information and Condition Assessment
189 5.6 Expected Foundation Capacities and Load-Deformation Characteristics (ASCE 41-13 § 8.4)
5.6.1 Geotechnical Information
5.6.2 Derivation of Strength Capacities
190 5.6.2.1 Spread Footing Expected Capacity Example
5.6.2.2 Deep Foundation Expected Capacity Example
5.6.2.3 Expected Capacity from Gravity Load Example
192 5.6.3 Bounding of Soil Load-Deformation Characteristics
5.6.4 Derivation of Expected Foundation Stiffness
193 5.6.4.1 Expected Foundation Stiffness Example
195 5.6.5 Bearing Pressure Distribution
5.6.6 Force-Controlled vs. Deformation-Controlled Actions
197 5.7 Shallow Foundation Evaluation and Retrofit
5.7.1 Overview
200 5.7.2 Foundation Modeling Approaches
201 5.7.2.1 Method 1
203 5.7.2.2 Method 2
204 5.7.2.3 Method 3
205 5.7.3 Governing Jurisdiction Discussion
207 5.7.4 Method 1 Example
208 5.7.4.1 Method 1 Fixed Base Example
210 5.7.4.2 Method 1 Flexible Base Example
215 5.7.5 Method 2 Example
222 5.7.6 Method 3 Example
223 5.7.6.1 Method 3 Nonlinear Analysis
226 5.7.6.2 Method 3 Linear Analysis
5.8 Shallow Foundation Lateral Load
227 5.8.1 Shallow Foundation Lateral Load Example
228 5.9 Deep Foundation Evaluation and Retrofit
231 5.10 Kinematic Interaction and Radiation Damping Soil-Structure Interaction Effects
5.10.1 Example of Kinematic Interaction Effects for 3-Story Building over Basement
234 5.10.2 Discussion of Foundation Damping
5.11 Liquefaction Evaluation and Mitigation
237 Chapter 6: Tier 1 Screening and Tier 2 Deficiency-Based Evaluation and Retrofit
6.1 Overview
6.2 Tier 1 Screening (ASCE 41-13 Chapter 4)
238 6.3 Tier 2 Deficiency-Based Evaluation and Retrofit (ASCE 41-13 Chapter 4)
240 6.4 Example Building Tilt-up Concrete (PC1)
6.4.1 Overview
242 6.4.2 Building Geometry and Loads
6.4.2.1 Building Geometry
244 6.4.2.2 Building Information and Loads
245 6.4.3 Performance Objective
246 6.5 Tier 1 Screening of Example Building
247 6.5.1 Pseudo Seismic Force
248 6.5.2 Tier 1 Checklists
260 6.5.3 Tier 1 Screening Summary
261 6.6 Tier 2 Evaluation and Retrofit of Example Building
262 6.6.1 Data Collection and Material Properties
264 6.6.2 Wall-Roof Anchorage for East-West Direction Seismic Loads
6.6.2.1 Calculate Out-of-Plane Wall Anchorage Force, Fp
266 6.6.2.2 Sub-Purlin Anchorage to Wall Panel
272 6.6.2.3 Subpurlin and Subpurlin Fasteners
276 6.6.3 Subdiaphragm Analysis in East-West Direction Seismic Loads
283 6.6.3.1 Evaluate Subdiaphragm Chord
287 6.6.3.2 Evaluate Glulam Beam Continuous Cross-Tie
296 6.6.4 Pseudo Seismic Force on Roof Diaphragm
299 6.6.5 Collector Analysis at Gridline B
301 6.6.5.1 Evaluate Glulam Beam for Collector Loads
307 6.6.5.2 Evaluate Collector Connection at Concrete Wall at Gridlines B/2
6.6.5.3 Evaluate Bolts Connecting HSS to Glulam Beam
309 6.6.5.4 Evaluate HSS Member
312 6.6.5.5 Evaluate Rods Connecting HSS Members
313 6.6.5.6 Evaluate HSS End Plates
314 6.6.5.7 Evaluate Adhesive Anchors Connecting HSS to Concrete Wall
327 6.6.5.8 Additional Considerations for Evaluating Adhesive Anchors Connecting HSS to Concrete Wall
332 6.6.6 Summary of Tier 2 Retrofit
335 Chapter 7: Wood Tuck-Under (W1a)
7.1 Overview
337 7.1.1 Performance Objective
7.2 General Building Description
7.2.1 Destructive Evaluation
342 7.2.2 Dead Loads and Seismic Weight
344 7.3 Site Seismicity
7.3.1 Design Spectra
345 7.3.2 Level of Seismicity
7.4 Tier 1 Analysis (ASCE 41-13 § 4.5)
347 7.5 Tier 3 Evaluation of the Existing Structure
7.5.1 Analysis Procedure
348 7.5.2 Acceptance Criteria
349 7.5.3 Building Model
351 7.5.4 Shear Walls
354 7.5.5 Model Properties
364 7.5.6 Loading
368 7.5.7 Torsion
369 7.5.8 Tier 3 Analysis Results – Existing Structure
383 7.6 Schematic Retrofit
385 7.7 Tier 3 Retrofit
7.7.1 Retrofit Design Elements
7.7.1.1 Top (Third) Story
387 7.7.1.2 Second Story
7.7.1.3 Bottom Story
7.7.2 Tier 3 Analysis Results
399 7.7.3 Force-Controlled Elements
7.7.3.1 Glued-Laminated Beam
401 7.7.3.2 Diaphragms
404 7.7.4 Moment Frame
7.7.5 Verification of the LSP
411 Chapter 8: Steel Moment Frame (S1)
8.1 Overview
412 8.1.1 Pre-Northridge Moment Connections
413 8.2 Building Description
414 8.2.1 Building Use and Risk Category
415 8.2.2 Structural System
8.2.2.1 Roof Framing
8.2.2.2 Typical Floor Framing
8.2.2.3 Vertical Load-Bearing Elements
8.2.2.4 Seismic Force-Resisting System (SFRS)
416 8.2.2.5 Exterior Walls/Cladding
417 8.2.2.6 Foundations
8.2.2.7 Material Properties
418 8.2.3 Field Verification and Condition Assessment
8.2.4 Structural Performance Objective
419 8.2.5 Spectral Response Acceleration Parameters
420 8.2.6 Level of Seismicity
8.2.7 Dead Loads and Seismic Weight
423 8.3 Tier 1 Evaluation
8.3.1 Seismic Hazard (ASCE 41-13 § 2.4)
424 8.3.2 Pseudo Seismic Force (ASCE 41-13 § 4.5.2)
8.3.3 Story Shear Forces (ASCE 41-13 § 4.5.2.2)
425 8.3.4 Soft Story Check (ASCE 41-13 § A2.2.3)
427 8.3.5 Torsion Check (ASCE 41-13 § A2.2.7)
428 8.3.6 Drift Quick Check (ASCE 41-13 § A3.1.3.1)
430 8.3.7 Axial Stress Due to Overturning Quick Check (ASCE 41-13 § A3.1.3.2)
431 8.3.8 Moment Frame Flexural Stress Quick Check (ASCE 41-13 § A3.1.3.3)
432 8.3.9 Panel Zone Check (ASCE 41-13 § A3.1.3.5)
435 8.3.10 Strong Column/Weak Beam Check (ASCE 41-13 § A3.1.3.7)
438 8.3.11 Compact Members Check (ASCE 41-13 § A3.1.3.8)
440 8.4 Tier 2 Evaluation
441 8.4.1 Linear Static Procedure (LSP)
442 8.4.1.1 Modeling Considerations
444 8.4.1.2 Summary of Linear Static Procedure (LSP) Forces
446 8.4.1.3 Moment Frame Connections
452 8.4.1.4 Moment Frame Beams
454 8.4.1.5 Moment Frame Columns
461 8.4.1.6 Panel Zone Evaluation
462 8.4.1.7 Frame Column Bases
8.4.1.8 LSP Results Summary
463 8.4.1.9 Applicability of Linear Procedures (LSP and LDP)
8.4.2 Linear Dynamic Procedure (LDP)
464 8.4.2.1 Comparison of LDP and LSP Forces
8.4.2.2 Moment Frame Connections
465 8.4.2.3 Moment Frame Columns
8.4.2.4 LDP Results
466 8.5 Tier 3 Evaluation
8.5.1 Nonlinear Static Procedure (NSP)
467 8.5.1.1 Connection Hinge Modeling Parameters and Acceptance Criteria
474 8.5.1.2 Column Modeling Parameters and Acceptance Criteria
477 8.5.1.3 Panel Zone Hinge Modeling Parameters and Acceptance Criteria
479 8.5.1.4 Pushover Curve and Target Displacement
483 8.5.1.5 Applicability of the NSP Procedure
486 8.5.1.6 Deformation Compatibility of Gravity Framing
493 8.5.2 Retrofit (ASCE 41-13 § C9.1)
495 Chapter 9: Steel Braced Frame (S2)
9.1 Overview
496 9.2 Building Description
498 9.3 Dead Loads and Seismic Weights
499 9.4 Seismic Design Parameters
500 9.5 Deficiencies Identified from Tier 1 Screening (ASCE 41-13 § 4.5)
9.5.1 Column Axial Stress
502 9.5.2 Brace Axial Stress
504 9.5.3 Other Deficiencies
505 9.6 Data Collection Requirements (ASCE 41-13 § 6.2, § 9.2, § 10.2)
9.6.1 Available Documentation
9.6.2 Required Testing
506 9.6.3 Required Condition Assessment
507 9.7 Tier 3 Evaluation using Linear Static Procedure (LSP)
508 9.7.1 Summary of Linear Static Procedure (LSP) Forces (ASCE 41-13 § 7.4.1)
9.7.1.1 East-West (X) Direction
509 9.7.1.2 North-South (Y) Direction
510 9.7.2 Brace Compression Capacity (ASCE 41-13 § 9.5.2.3.2)
511 9.7.2.1 First Story Brace, North-South (Y) Direction
514 9.7.2.2 Brace Compression Summary, North-South (Y) Direction
9.7.3 Brace Tension Capacity (ASCE 41-13 § 9.5.2.3.2)
515 9.7.3.1 First Story Brace, North-South (Y) Direction
9.7.3.2 Brace Tension Summary, North-South (Y) Direction
516 9.7.4 Beam Flexural Capacity (ASCE 41-13 § 9.5.2.4.2)
9.7.4.1 Second Floor Beam, North-South (Y) Direction
518 9.7.4.2 Beam Flexure Summary, North-South (Y) Direction
9.7.5 Beam Compression Capacity (ASCE 41-13 § 9.5)
9.7.5.1 Second Floor Beam, North-South (Y) Direction
521 9.7.5.2 Beam Compression Summary, North-South (Y) Direction
9.7.6 Beam PM-Interaction Acceptance Criteria (ASCE 41-13 § 9.5.2.4.2)
9.7.6.1 Second Floor Beam, North-South (Y) Direction
523 9.7.6.2 Beam PM-Interaction Summary, North-South (Y) Direction
9.7.7 Brace Connection Demands (ASCE 41-13 § 9.5.2.4.1)
524 9.7.7.1 First Story Braces, North-South (Y) Direction
525 9.7.7.2 Brace Connection Demand Summary, North-South (Y) Direction
526 9.7.8 Brace-to-Gusset Weld Capacity (ASCE 41-13 § 9.5.2.4.1)
9.7.8.1 First Story Braces, North-South (Y) Direction
528 9.7.8.2 Brace Weld Summary, North-South (Y) Direction
9.7.9 Brace Tensile Rupture Capacity (ASCE 41-13 § 9.5.2.4.1)
529 9.7.9.1 First Story Braces, North-South (Y) Direction
530 9.7.9.2 Brace Tensile Rupture Summary, North-South (Y) Direction
9.7.10 Gusset Plate Block Shear Capacity (ASCE 41-13 § 9.5.2.4.1)
9.7.10.1 First Story Braces, North-South (Y) Direction
531 9.7.10.2 Gusset Plate Block Shear Summary, North-South (Y) Direction
9.7.11 Whitmore Section Tensile Yielding Capacity (ASCE 41-13 § 9.5.2.4.1)
532 9.7.11.1 First Story Brace-to-Beam Connection, North-South (Y) Direction
533 9.7.11.2 Whitmore Section Tension Summary, North-South (Y) Direction
9.7.12 Whitmore Section Compression Buckling Capacity (ASCE 41-13 § 9.5.2.4.1)
534 9.7.12.1 First Story Brace-to-Beam Connection, North-South (Y) Direction
535 9.7.12.2 Whitmore Section Compression Summary, North-South (Y) Direction
9.7.13 Top Gusset Plate Connection Capacity (ASCE 41-13 § 9.5.2.4.1)
9.7.13.1 First Story Gusset-to-Beam Connection, North-South (Y) Direction
540 9.7.13.2 Top Gusset Plate Summary, North-South (Y) Direction
9.7.14 Beam Web Local Yielding and Crippling Capacity at Top Gusset Plate (ASCE 41-13 § 9.5.2.4.1)
9.7.14.1 First Story Gusset-to-Beam Connection, North-South (Y) Direction
542 9.7.14.2 Beam Web Summary at Top Gusset Plate, North-South (Y) Direction
9.7.15 Bottom Gusset Plate Connection Capacity (ASCE 41-13 § 9.5.2.4.1)
9.7.15.1 Second Story Gusset-to-Beam/Column Connection, North-South (Y) Direction
546 9.7.15.2 Bottom Gusset Plate Connection Summary, North-South (Y) Direction
9.7.16 Beam Web Local Yielding and Crippling Capacity at Bottom Gusset Plate (ASCE 41-13 § 9.5.2.4.1)
9.7.16.1 Second Story Gusset-to-Beam Connection, North-South (Y) Direction
548 9.7.16.2 Beam Web Summary at Bottom Gusset Plate, North-South (Y) Direction
9.7.17 Column Web Local Yielding and Crippling Capacity at Bottom Gusset Plate (ASCE 41-13 § 9.5.2.4.1)
9.7.17.1 Second Story Gusset-to-Column Connection, North-South (Y) Direction
549 9.7.17.2 Column Web Summary at Bottom Gusset Plate, North-South (Y) Direction
550 9.7.18 Column Compression Capacity (ASCE 41-13 § 9.4.2.4.2)
9.7.18.1 First Story Column, North-South (Y) Direction
553 9.7.18.1 Column Compression Summary, North-South (Y) Direction
554 9.7.19 Column Tension Capacity (ASCE 41-13 § 9.4.2.4.2)
9.7.19.1 First Story Column, North-South (Y) Direction
555 9.7.19.2 Column Tension Summary, North-South (Y) Direction
9.7.20 Column Splice Tension Capacity (ASCE 41-13 § 9.5.2.4.1)
9.7.20.1 Column Splice at Second Story, North-South (Y) Direction
560 9.7.21 Foundation Capacity and Acceptance Criteria
561 9.7.21.1 Typical North-South (Y) Direction Frame
564 9.7.22 Confirm Applicability of Linear Procedure
565 9.8 Tier 3 Evaluation using Nonlinear Static Procedure (NSP)
9.8.1 General
566 9.8.2 Brace Modeling and Acceptance Criteria (ASCE 41-13 § 9.5.2.2.2 and § 9.5.2.4.3)
9.8.2.1 Second Story Brace
573 9.8.3 Beam Modeling and Acceptance Criteria (ASCE 41-13 § 9.4.3.2.2)
9.8.3.1 Second Story Beams
577 9.8.4 Column Modeling and Acceptance Criteria
9.8.4.1 Second Story Columns
581 9.8.5 Gravity Beam Connection Modeling and Acceptance Criteria
586 9.8.6 Foundation Modeling and Acceptance Criteria (ASCE 41-13 Chapter 8)
590 9.8.7 Pushover Curve and Target Displacement (Flexible-Base Model)
593 9.8.8 Pushover Curve and Target Displacement (Fixed-Base Model)
597 Chapter 10: Concrete Shear Wall (C2) with Linear Static Procedure
10.1 Overview
598 10.2 Introduction
10.2.1 Building Description
601 10.2.2 Tier 1 Screening and Mitigation Strategy
602 10.2.3 Seismic Design Parameters and Performance Objective (ASCE 41-13 § 2.2 and § 2.4.1)
603 10.2.4 Level of Seismicity (ASCE 41-13 § 2.5)
604 10.3 Data Collection Requirements (ASCE 41-13 § 6.2 and § 10.2)
605 10.4 Linear Static Procedure
10.4.1 Preliminary Pseudo Forces (ASCE 41-13 § 7.4.1.3.1)
607 10.4.2 Preliminary Story Forces (ASCE 41-13 § 7.4.1.3.2)
10.4.3 Preliminary Wall Demand (ASCE 41-13 § 7.4.1.3 and ASCE 41-13 § 10.7)
609 10.4.4 Preliminary Element DCRs (ASCE 41-13 § 7.3.1 and ASCE 41-13 § 10.7)
10.4.4.1 Wall 1 at Level 2, W1F2
612 10.4.4.2 Wall A at Level 2 (WAF2)
614 10.4.4.3 Wall D at Level 2 (WDF2)
615 10.4.4.4 Wall G at Level 2 (WGF2)
616 10.4.4.5 Gridline D Columns at Basement Supporting Discontinuous Shear Wall
618 10.4.4.6 Summary of Preliminary Element DCRs
10.4.5 Confirm Applicability of Linear Procedure (ASCE 41-13 § 7.3.1)
620 10.4.6 Pseudo Seismic Force Calculations (ASCE 41-13 § 7.4.1 and ASCE 41-13 § 10.7)
10.4.6.1 Transverse Direction
621 10.4.6.2 Longitudinal Direction
10.4.7 Final Pseudo Seismic Forces (ASCE 41-13 § 7.4.1.3)
10.4.7.1 Transverse Direction
622 10.4.7.2 Longitudinal Direction
10.4.8 Final Wall Demands
624 10.5 Evaluation and Retrofit of Shear Walls (ASCE 41-13 § 7.5.1 and ASCE 41-13 § 10.7)
10.5.1 Element m-Factors and Final Element Acceptance Ratios for Shear Walls (ASCE 41-13 § 7.5.1 and § 10.7)
625 10.5.1.1 Wall 1 at Level 2, W1F2
10.5.1.2 Wall A at Level 1, WAF2
627 10.5.1.3 Wall D at Level 2, WDF2
10.5.1.4 Wall G at Level 2, WGF2
628 10.5.1.5 Summary Element m-factors
629 10.5.2 Acceptance of Columns and Foundation Supporting Discontinuous Shear Wall Gridline D (ASCE 41-13 § 7.5.2.1 and § 10.7.1.2)
10.5.2.1 Gridline D Columns at Basement Supporting Discontinuous Shear Wall
632 10.5.2.2 Foundations at Gridline D Columns
634 10.5.2.3 Overturning/Tension Check at Foundation Gridline D
635 10.5.3 Summary for BSE-2E CP Performance (ASCE 41-13 § 7.5.2 and § 10.7)
636 10.5.4 Summary for BSE-1E LS Performance (ASCE 41-13 § 7.5.2 and ASCE 41-13 § 10.7)
637 10.6 Rigid Diaphragm Check (ASCE 41-13 § 7.2.9)
10.6.1 Slab Connection to Concrete Wall D at Level 1
639 10.6.2 Diaphragm Collector Design
10.6.2.1 Demand on Collectors
640 10.6.2.2 Seismic Force on Collector
641 10.6.2.3 Check Axial Load with spColumn®:
10.6.3 Check Overall Level 1 Diaphragm
642 10.6.3.1 Flexural Demand on the Level 1 Diaphragm
644 10.6.3.2 Seismic Mitigation
10.7 FRP Design of Existing Concrete Shear Walls at Gridlines 1 and 4
647 10.8 FRP Design of Columns Supporting Discontinuous Shear Wall Gridline D
651 10.9 Check Non-Contributory Concrete Frames (ASCE 41-13 § 7.5.1.1 and § 10.4)
10.9.1 Story Drifts
652 10.9.2 Column Loads
653 10.9.3 Moment and Shear Demands on Secondary Columns
654 10.9.4 Shear- or Flexure-Controlled Existing Columns
656 10.9.5 Column Deformation-Compatibility Moment
657 Chapter 11: Concrete Shear Wall (C2) with Nonlinear Static Procedure
11.1 Overview
659 11.2 Three-Dimensional Nonlinear Modeling Approach
661 11.2.1 Modeling Approach for Structural Components
667 11.2.2 Additional Information Required for NSP
11.2.2.1 Nonlinear Constitutive Stress-Strain Relations of Concrete and Reinforcing Steel
672 11.2.2.2 In-Plane Shear Stress-Strain Relations for Reinforced Concrete Shear Walls
673 11.2.2.3 Classification of Diaphragms
11.2.2.4 Modal Properties
675 11.3 Nonlinear Static (Pushover) Analysis
677 11.3.1 Preliminary Analysis for Idealized Force-Displacement Curve (ASCE 41-13 § 7.4.3.2.4)
679 11.3.2 Coefficients for Calculating Target Displacement
11.3.2.1 Calculation of C0
680 11.3.2.2 Calculation of μstrength
681 11.3.2.3 Confirm Applicability of Nonlinear Static Procedure (ASCE 41-13 § 7.3.2.1 and § 7.4.3.3.2)
684 11.3.2.4 Calculation of C1
11.3.2.5 Calculation of C2
11.3.3 Preliminary Target Displacement (ASCE 41-13 § 7.4.3.3)
685 11.3.4 Actual and Accidental Torsional Effects (ASCE 41-13 § 7.2.3.2)
686 11.3.5 Final Target Displacement (ASCE 41-13 § 7.4.3.3.2)
688 11.4 Performance Evaluation of Reinforced Concrete Shear Walls
11.4.1 Deformation-Controlled and Force-Controlled Actions for Reinforced Concrete Shear Walls (ASCE 41-13 § 10.7.2.3)
689 11.4.2 Acceptance Criteria for Shear and Flexural Responses (ASCE 41-13 § 10.7.2.4.2)
692 11.4.3 LSP and NSP for Evaluating Shear Walls
693 11.5 Performance Evaluation of Reinforced Concrete Columns (ASCE 41-13 § 10.4.2)
11.5.1 Axial Response
694 11.5.2 Shear Response
697 11.5.3 Flexural Response
701 11.6 Three-Dimensional Explicit Modeling of Foundation Components (ASCE 41-13 § 8.4.2)
702 11.6.1 Modeling Foundation Flexibility
706 11.6.2 Modeling Foundation Capacity
708 11.7 Kinematic Interaction and Radiation Damping Soil-Structure Interaction Effects (ASCE 41-13 § 8.5)
11.7.1 Base Slab Averaging
709 11.7.2 Embedment
710 11.7.3 Target Displacement Considering Kinematic Interaction Effects
711 11.7.4 Foundation Damping Soil-Structure Interaction Effects
719 11.7.5 Shear Wall Performance Evaluated Using Flexible-Base Building Model Considering Soil-Structure Interaction Effects
721 Chapter 12: Unreinforced Masonry Bearing Wall (URM) with Special Procedure
12.1 Overview
723 12.2 Building Description
726 12.3 Dead Loads and Seismic Weight
728 12.4 Live Loads
729 12.5 Spectral Response Acceleration Parameters
12.6 Tier 1 Screening (ASCE 41-13 § 4.3 – § 4.5)
733 12.7 Special Procedure Evaluation and Retrofit Overview (ASCE 41-13 § 15.2)
734 12.8 Condition of Materials (ASCE 41-13 § 15.2.2.1)
735 12.9 In-Place Shear Testing (ASCE 41-13 § 15.2.2.2)
740 12.10 Masonry Strength (ASCE 41-13 § 15.2.2.3)
742 12.11 Diaphragm Evaluation (ASCE 41-13 § 15.2.3.2)
753 12.12 In-Plane Demand on Shear Walls (ASCE 41-13 § 15.2.3.3.1)
757 12.13 In-Plane Capacity of Shear Walls (ASCE 41-13 § 15.2.3.3.2 and § 15.2.3.3.3) of a Wall with Sufficient Capacity
759 12.13.1 Second Story Side Walls
761 12.13.2 First Story Side Walls
762 12.14 In-Plane Capacity of Shear Walls (ASCE 41-13 § 15.2.3.3.2 and § 15.2.3.3.3) of a Wall without Sufficient Capacity
764 12.15 Retrofit of a Wall with Insufficient Capacity Using Shotcrete
767 12.15.1 Method #1
769 12.15.2 Methods #2 and #3
772 12.15.3 Shotcrete Wall Design
777 12.16 Out-of-Plane URM Wall Checks and Strengthening (ASCE 41-13 § 15.2.3.4)
781 12.16.1 Brace Design
785 12.16.2 Parapet Evaluation
786 12.16.3 Brace Top and Bottom Connection Design
789 12.17 Wall Tension Anchorage Retrofit Design
797 12.18 Wall Shear Transfer Retrofit Design
801 12.19 Summary of Special Procedure Retrofit Measures
802 12.20 Additional Areas of Revision in ASCE 41-17
803 Chapter 13: Unreinforced Masonry Bearing Wall (URM) with Tier 3 Procedure
13.1 Overview
804 13.2 Introduction to Tier 3 Evaluation and Retrofit
805 13.3 Condition of Materials (ASCE 41-13 § 11.2.2)
808 13.4 In-Place Shear Testing (ASCE 41-13 § 11.2.3)
13.5 Expected Masonry Strength for Bed-Joint Sliding (ASCE 41-13 § 11.2.3.6)
811 13.6 In-plane Capacity (ASCE 41-13 § 11.3.2.2) and Demand (ASCE 41-13 § 7.4.1) of Shear Walls with Linear Static Procedure
812 13.6.1 Procedure Using m-Factors in ASCE 41-13 Table 11-3
13.6.1.1 Determination of Capacity
817 13.6.1.2 Determination of Demand
822 13.6.2 Procedure without Considering the Alternative Pier Height Effect and Wall Flanges
13.6.2.1 Determination of Capacity
829 13.6.2.2 Determination of Demand
832 13.6.2.3 Determination of Acceptance Ratio
835 13.6.3 Procedure Considering the Alternative Pier Height Effect and Ignoring the Effect of Wall Flanges
837 13.6.3.1 Determination of Capacity
841 13.6.3.2 Determination of Demand
844 13.6.4 Procedure Considering the Alternative Pier Height Effect and Wall Flanges
13.6.4.1 Determination of Capacity
848 13.6.4.2 Determination of Demand
852 13.6.5 Comparison of 13.6.2, 13.6.3, 13.6.4 and the Special Procedure
853 13.6.6 LSP Limitations per ASCE 41-13 § 7.3.1.1
856 13.7 Evaluation of Existing Floor and Roof Diaphragms
859 13.7.1 In-Plane Shear Demand on Wood Diaphragms
861 13.7.2 In-Plane Shear Capacity of Wood Diaphragms
862 13.7.3 Acceptance of In-Plane Shear of Wood Diaphragms
864 13.7.4 Retrofit of Wood Diaphragms
865 13.8 Evaluation of Unreinforced Masonry Walls Subject to Out-of-Plane Actions (ASCE 41-13 §11.3.3)
875 Appendix A: Other Resources
877 Appendix B: Changes from ASCE 41-06 to ASCE 41-13
B.1 Chapter 1 General Requirements
B.2 Chapter 2 Performance Objectives and Seismic Hazards
879 B.3 Chapter 3 Evaluation and Retrofit Requirements
B.4 Chapter 4 Tier 1 Screening
B.5 Chapter 5 Tier 2 Deficiency-Based Evaluation and Retrofit
880 B.6 Chapter 6 Systematic Evaluation and Retrofit
B.7 Chapter 7 Analysis Procedures and Acceptance Criteria
881 B.8 Chapter 8 Foundations and Geologic Site Hazards
B.9 Chapter 9-12 Material Specific Chapters
883 References
895 Glossary
917 Symbols
935 Project Participants
940 Catalog No. 1879-1

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