ASME TR A17.1.8.4 2020
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ASME TR A17.1-8.4-2020: Guide for Elevator Seismic Design
| Published By | Publication Date | Number of Pages |
| ASME | 2020 | 77 |
In conjunction with the publication of ASME A17.1-2013/CSA B44-13, this first edition of the Guide for Elevator Seismic Design is being released. The guide was prepared by the ASME A17.1/CSA B44 Earthquake Safety Committee. This guide is intended as an aid to the user to better understand the history behind the development of the latest building and elevator safety codes, the rationale behind the latest section 8.4 revisions, and the proper application of the section 8.4 requirements in conjunction with a jurisdiction’s adopted building code. The guide achieves this by detailing A17.1 harmonization efforts with all building codes and summarizes the harmonization impact on elevator design via force comparisons based on component, component mounting location, and building geographical location, and provides an IBC quick reference for seismic requirements and equivalent zone force levels
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 4 | CONTENTS |
| 6 | FOREWORD |
| 7 | ASME A17 COMMITTEE ROSTER |
| 8 | ASME TR A17.1-8.4–2020 SUMMARY OF CHANGES |
| 10 | Part 1 Modification of ASME A17.1-2010/CSA B44-10, Section 8.4, Elevator Safety Requirements for Seismic Risk Zone 2 or Greater 1-1 SCOPE 1-2 INTRODUCTION |
| 11 | 1-3 ELEVATOR DESIGN IMPACT WITH IBC/NBCC Figures Figure 1-2-1 Seismic Zone Map |
| 12 | 1-3.1 Horizontal Seismic Force Levels |
| 13 | Figure 1-3.1.2-1 Building Base Designation and Associated Variables |
| 14 | 1-4 USING IBC/ASCE 7 FOR ELEVATOR SEISMIC DESIGN (QUICK REFERENCE) 1-5 SUMMARY |
| 15 | 1-6 EXPLANATION OF TERMS |
| 16 | Tables Table 1-3.1.3-1 Geographic Impact Comparison: IBC/NBCC Versus ASME A17.1/CSA B44 Seismic Zone 3 (Guide Rail) |
| 22 | Table 1-3.1.3-2 Impact of IBC/NBCC Forces on Elevator Components in U.S. and Canada (Comparison of IBC/NBCC Forces to ASME A17.1/CSA B44 Seismic Zone 3) |
| 23 | Table 1-4-1 IBC/ASCE 7 Seismic Parameters Correlation to ASME A17.1/CSA B44 Zones |
| 24 | Part 2 Derivations 2-1 FIGURES 8.4.8.2-1 THROUGH 8.4.8.2-7 |
| 25 | 2-2 REQUIREMENT 8.4.8.9 2-3 REQUIREMENT 8.4.12 |
| 26 | Figure 2-2-1 Sample Counterweight Force Diagram |
| 28 | 2-4 REQUIREMENT 8.4.12.2.1(a) (ZONE > 3) 2-4.1 General |
| 29 | Figure 2-4.1-1 Rail Force Free Body Diagrams for ASME A17.1/CSA B44 |
| 30 | 2-4.2 Derivation of Free Body Shears 2-4.3 Boundary Conditions |
| 31 | 2-4.4 Integration Constants in Terms of W 2-4.5 Solve for Deflection Equations |
| 32 | 2-4.6 Derivation of Required Moment of Inertia 2-5 REQUIREMENT 8.4.12.2.1 (IBC/NBCC JURISDICTIONS) 2-5.1 General |
| 33 | Figure 2-5.1-1 Rail Force Free Body Diagrams for IBC/NBCC |
| 34 | 2-5.2 Derivation of Free Body Shears 2-5.3 Boundary Conditions |
| 35 | 2-5.4 Integration Constants in Terms of Fp 2-5.5 Deflection Equations in Terms of Fp |
| 36 | 2-5.6 Derivation of Required Moment of Inertia 2-6 REQUIREMENT 8.4.14.1.1(b) |
| 37 | 2-7 REQUIREMENT 8.4.14.1.2, LOAD COMBINATIONS |
| 38 | Part 3 Sample Calculations 3-1 SAMPLE CALCULATION(S) 1: DETERMINING PROPER SEISMIC REQUIREMENTS AND FORCES 3-1.1 Sample Calculation 1a 3-1.2 Sample Calculation 1b |
| 39 | 3-1.3 Sample Calculation 1c |
| 40 | 3-1.4 Sample Calculation 1d 3-1.5 Sample Calculation 1e |
| 41 | 3-1.6 Sample Calculation 1f Figure 3-1.5.1-1 SBC 1994, Figure 1607.1.5B, Contour Map of Effective Peak Velocity-Related Acceleration Coefficient, Av |
| 42 | 3-1.7 Sample Calculation 1g 3-2 SAMPLE CALCULATION(S) 2: CONTROLLER ANCHORAGE (SI UNITS) 3-2.1 Sample Calculation 2a (SI Units — IBC) |
| 43 | 3-2.2 Sample Calculation 2b (SI Units — NBCC) 3-3 SAMPLE CALCULATION(S) 3: GUIDE RAIL BRACKET SPACING (SI UNITS) |
| 44 | 3-3.1 Sample Calculation 3a (SI Units — IBC) |
| 47 | Figure 3-3.1.4-1 ASME A17.1/CSA B44, Figure 8.4.8.2-4, 22.5 kg/m (15 lb/ft) Guide-Rail Bracket Spacing (Marked for Sample Calculation 3a) |
| 48 | Figure 3-3.1.5-1 ASME A17.1/CSA B44, Figure 2.23.4.1-1 (Marked for Sample Calculations 3a and 3b) |
| 49 | 3-3.2 Sample Calculation 3b (SI Units — NBCC) |
| 52 | Figure 3-3.2.4-1 ASME A17.1/CSA B44, Figure 8.4.8.2-4, 22.5 kg/m (15 lb/ft) Guide-Rail Bracket Spacing (Marked for Sample Calculation 3b) |
| 53 | 3-4 SAMPLE CALCULATION(S) 4: GUIDE RAIL BRACKET STRENGTH AND DESIGN (SI UNITS) 3-4.1 Sample Calculation 4a (SI Units — IBC) |
| 54 | 3-4.2 Sample Calculation 4b (SI Units — NBCC) |
| 55 | 3-5 SAMPLE CALCULATION(S) 2: CONTROLLER ANCHORAGE (IMPERIAL UNITS) 3-5.1 Sample Calculation 2a (Imperial Units — IBC) |
| 56 | 3-5.2 Sample Calculation 2b (Imperial Units — NBCC) |
| 57 | 3-6 SAMPLE CALCULATION(S) 3: GUIDE RAIL BRACKET SPACING (IMPERIAL UNITS) 3-6.1 Sample Calculation 3a (Imperial Units — IBC) |
| 60 | Figure 3-6.1.4-1 ASME A17.1/CSA B44, Figure 8.4.8.2-4, 22.5 kg/m (15 lb/ft) Guide-Rail Bracket Spacing (Marked for Sample Calculation 3a) |
| 61 | 3-6.2 Sample Calculation 3b (Imperial Units — NBCC) |
| 62 | Figure 3-6.1.5-1 ASME A17.1/CSA B44, Figure 2.23.4.1-1 [Marked for Sample Calculations 3a and 3b (Imperial Units)] |
| 65 | Figure 3-6.2.4-1 ASME A17.1/CSA B44, Figure 8.4.8.2-4, 22.5 kg/m (15 lb/ft) Guide-Rail Bracket Spacing (Marked for Sample Calculation 3b) |
| 66 | 3-7 SAMPLE CALCULATION(S) 4: GUIDE RAIL BRACKET STRENGTH AND DESIGN (IMPERIAL UNITS) |
| 67 | 3-7.1 Sample Calculation 4a (Imperial Units — IBC) |
| 68 | 3-7.2 Sample Calculation 4b (Imperial Units — NBCC) |
| 70 | Table I-1 ASME A17.1/CSA B44, Table 8.4.12.2.2, Maximum Allowable Deflection MANDATORY APPENDIX I SAMPLE CALCULATION FIGURES |
| 71 | Figure I-1 Case 1, Load Eq. 8.4.14.1.2(b): Seismic Loading (Fv in the UP Direction) Figure I-2 Case 2, Load Eq. 8.4.14.1.2(b): Seismic Loading (Fv in the DOWN Direction) Figure I-3 Case 3, Load Eq. 8.4.14.1.2(a): Seismic Loading (Fv in the UP Direction) Figure I-4 Case 4, Load Eq. 8.4.14.1.2(a): Seismic Loading (Fv in the DOWN Direction) |
| 72 | Figure I-5 Pictorial View of Fp Forces Figure I-6 Elevator Guide Rail Force Orientations Figure I-7 ASME A17.1/CSA B44, Figure 8.4.8.9, Guide Rail Axes |
| 73 | Figure I-8 Seismic Rail Loading Force for Counterweight |
| 74 | Figure I-9 Rail Bracket Free Body and Bending Moment Diagram |
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