{"id":459725,"date":"2024-10-20T10:05:38","date_gmt":"2024-10-20T10:05:38","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/icc-standard-400-2022-1stptg\/"},"modified":"2024-10-26T18:38:50","modified_gmt":"2024-10-26T18:38:50","slug":"icc-standard-400-2022-1stptg","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/icc\/icc-standard-400-2022-1stptg\/","title":{"rendered":"ICC Standard 400 2022 1stptg"},"content":{"rendered":"
This standard provides the minimum design requirements for new log structures, including structural, thermal envelope and fire-resistance provisions. Notable changes from the 2017 edition include: New tabulated reference provides the weight per square foot of wall surface area of log-walls at 21-percent design moisture content by average width and specific gravity. Additional factors noted to adjust moisture content and\/or nominal size\/ shape to average width. Section 302.2.4 Notching and boring: Now provides multiple paths (e.g., prescriptive, calculated) for acceptance of notching and boring of beams. Two new illustrations replace Figure 302.2.4. Section 302.3 Mechanical connections and fasteners: Updated prescriptive path compliance for ANSI\/AWC specification in the National Design Specification (NDS), alternative evaluation path for proprietary (nonconforming) fasteners, and specified analysis for wood dowels. New tabulated reference providing the bearing capacity (lb\/in) of wall-logs, which is useful for calculating the continuous load path. Updated US Climate Zone map to reflect updates in the 2021 IECC. Improved criteria for settling devices to ensure structural integrity. Section 305 Thermal envelope: Updated to clarify the relationship to infiltration (Section 306) and the relationship to the 2021 IECC Commercial and Residential provisions. Table 305.3.1.1: Updated to<\/p>\n
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1<\/td>\n | ICC 400-2022 STANDARD ON THE DESIGN AND CONSTRUCTION OF LOG STRUCTURES <\/td>\n<\/tr>\n | ||||||
2<\/td>\n | COPYRIGHT <\/td>\n<\/tr>\n | ||||||
5<\/td>\n | FOREWORD <\/td>\n<\/tr>\n | ||||||
9<\/td>\n | TABLE OF CONTENTS <\/td>\n<\/tr>\n | ||||||
11<\/td>\n | CHAPTER 1: ADMINISTRATIVE PROVISIONS SECTION 101 ADMINISTRATIVE PROVISIONS SECTION 102 APPLICABILITY SECTION 103 PROVISIONS FOR COMPLIANCE SECTION 104 COMPLIANCE ALTERNATIVES SECTION 105 CONVENTIONS SECTION 106 INSPECTIONS SECTION 107 FOUNDATIONS SECTION 108 DESIGN LOADS <\/td>\n<\/tr>\n | ||||||
12<\/td>\n | SECTION 109 REFERENCED DOCUMENTS <\/td>\n<\/tr>\n | ||||||
13<\/td>\n | CHAPTER 2: DEFINITIONS SECTION 201 GENERAL SECTION 202 DEFINED TERMS <\/td>\n<\/tr>\n | ||||||
14<\/td>\n | SECTION 203 SYMBOLS <\/td>\n<\/tr>\n | ||||||
17<\/td>\n | CHAPTER 3: GENERAL REQUIREMENTS SECTION 301 GENERAL SECTION 302 MATERIALS TABLE 302.2.2.1.1 MOISTURE CONTENT OF SELECTED WOOD SPECIES AT FIBER SATURATION <\/td>\n<\/tr>\n | ||||||
18<\/td>\n | TABLE 302.2.1.2 LIST OF SPECIES COMBINATIONS <\/td>\n<\/tr>\n | ||||||
19<\/td>\n | TABLE 302.2.1.2\u2014continued LIST OF SPECIES COMBINATIONS <\/td>\n<\/tr>\n | ||||||
20<\/td>\n | TABLE 302.2.1.2\u2014continued LIST OF SPECIES COMBINATIONS <\/td>\n<\/tr>\n | ||||||
21<\/td>\n | TABLE 302.2.1.2\u2014continued LIST OF SPECIES COMBINATIONS <\/td>\n<\/tr>\n | ||||||
22<\/td>\n | TABLE 302.2.1.2\u2014continued LIST OF SPECIES COMBINATIONS <\/td>\n<\/tr>\n | ||||||
23<\/td>\n | TABLE 302.2.1.2\u2014continued LIST OF SPECIES COMBINATIONS <\/td>\n<\/tr>\n | ||||||
24<\/td>\n | TABLE 302.2.1.2\u2014continued LIST OF SPECIES COMBINATIONS FIGURE 302.2.2.2.1 CLIMATE ZONE MAP <\/td>\n<\/tr>\n | ||||||
25<\/td>\n | TABLE 302.2.3.2(1) BASE DESIGN VALUES FOR SAWN ROUND AND UNSAWN ROUND TIMBER BEAMS <\/td>\n<\/tr>\n | ||||||
26<\/td>\n | TABLE 302.2.3.2(1)\u2014continued BASE DESIGN VALUES FOR SAWN ROUND AND UNSAWN ROUND TIMBER BEAMS <\/td>\n<\/tr>\n | ||||||
27<\/td>\n | TABLE 302.2.3.2(1)\u2014continued BASE DESIGN VALUES FOR SAWN ROUND AND UNSAWN ROUND TIMBER BEAMS <\/td>\n<\/tr>\n | ||||||
28<\/td>\n | TABLE 302.2.3.2(1)\u2014continued BASE DESIGN VALUES FOR SAWN ROUND AND UNSAWN ROUND TIMBER BEAMS <\/td>\n<\/tr>\n | ||||||
29<\/td>\n | TABLE 302.2.3.2(1)\u2014continued BASE DESIGN VALUES FOR SAWN ROUND AND UNSAWN ROUND TIMBER BEAMS <\/td>\n<\/tr>\n | ||||||
30<\/td>\n | TABLE 302.2.3.2(1)\u2014continued BASE DESIGN VALUES FOR SAWN ROUND AND UNSAWN ROUND TIMBER BEAMS <\/td>\n<\/tr>\n | ||||||
31<\/td>\n | TABLE 302.2.3.2(1)\u2014continued BASE DESIGN VALUES FOR SAWN ROUND AND UNSAWN ROUND TIMBER BEAMS <\/td>\n<\/tr>\n | ||||||
32<\/td>\n | TABLE 302.2.3.2(1)\u2014continued BASE DESIGN VALUES FOR SAWN ROUND AND UNSAWN ROUND TIMBER BEAMS <\/td>\n<\/tr>\n | ||||||
33<\/td>\n | TABLE 302.2.3.2(1)\u2014continued BASE DESIGN VALUES FOR SAWN ROUND AND UNSAWN ROUND TIMBER BEAMS <\/td>\n<\/tr>\n | ||||||
34<\/td>\n | TABLE 302.2.3.2(1)\u2014continued BASE DESIGN VALUES FOR SAWN ROUND AND UNSAWN ROUND TIMBER BEAMS <\/td>\n<\/tr>\n | ||||||
35<\/td>\n | TABLE 302.2.3.2(1)\u2014continued BASE DESIGN VALUES FOR SAWN ROUND AND UNSAWN ROUND TIMBER BEAMS <\/td>\n<\/tr>\n | ||||||
36<\/td>\n | TABLE 302.2.3.2(2) BASE DESIGN VALUES FOR WALL-LOGS <\/td>\n<\/tr>\n | ||||||
37<\/td>\n | TABLE 302.2.3.2(2)\u2014continued BASE DESIGN VALUES FOR WALL-LOGS <\/td>\n<\/tr>\n | ||||||
38<\/td>\n | TABLE 302.2.3.2(2)\u2014continued BASE DESIGN VALUES FOR WALL-LOGS <\/td>\n<\/tr>\n | ||||||
39<\/td>\n | TABLE 302.2.3.2(2)\u2014continued BASE DESIGN VALUES FOR WALL-LOGS <\/td>\n<\/tr>\n | ||||||
40<\/td>\n | TABLE 302.2.3.2(2)\u2014continued BASE DESIGN VALUES FOR WALL-LOGS <\/td>\n<\/tr>\n | ||||||
41<\/td>\n | TABLE 302.2.3.2(2)\u2014continued BASE DESIGN VALUES FOR WALL-LOGS <\/td>\n<\/tr>\n | ||||||
42<\/td>\n | TABLE 302.2.3.2(2)\u2014continued BASE DESIGN VALUES FOR WALL-LOGS <\/td>\n<\/tr>\n | ||||||
43<\/td>\n | TABLE 302.2.3.2(2)\u2014continued BASE DESIGN VALUES FOR WALL-LOGS <\/td>\n<\/tr>\n | ||||||
44<\/td>\n | TABLE 302.2.3.2(2)\u2014continued BASE DESIGN VALUES FOR WALL-LOGS <\/td>\n<\/tr>\n | ||||||
45<\/td>\n | TABLE 302.2.3.2(2)\u2014continued BASE DESIGN VALUES FOR WALL-LOGS <\/td>\n<\/tr>\n | ||||||
46<\/td>\n | TABLE 302.2.3.2(2)\u2014continued BASE DESIGN VALUES FOR WALL-LOGS <\/td>\n<\/tr>\n | ||||||
47<\/td>\n | TABLE 302.2.3.2(2)\u2014continued BASE DESIGN VALUES FOR WALL-LOGS <\/td>\n<\/tr>\n | ||||||
48<\/td>\n | TABLE 302.2.3.2(2)\u2014continued BASE DESIGN VALUES FOR WALL-LOGS <\/td>\n<\/tr>\n | ||||||
49<\/td>\n | TABLE 302.2.3.2(2)\u2014continued BASE DESIGN VALUES FOR WALL-LOGS <\/td>\n<\/tr>\n | ||||||
50<\/td>\n | TABLE 302.2.3.2(2)\u2014continued BASE DESIGN VALUES FOR WALL-LOGS <\/td>\n<\/tr>\n | ||||||
51<\/td>\n | TABLE 302.2.3.2(3) APPLICABILITY OF ADJUSTMENT FACTORS FOR WALL-LOGS AND SRTBs <\/td>\n<\/tr>\n | ||||||
52<\/td>\n | TABLE 302.2.3.4 SECTION PROPERTIES OF SAWN AND UNSAWN ROUND TIMBER BEAMS <\/td>\n<\/tr>\n | ||||||
53<\/td>\n | TABLE 302.2.3.5.1 ADJUSTMENT FACTORS FOR WALL-LOGS <\/td>\n<\/tr>\n | ||||||
54<\/td>\n | TABLE 302.2.3.10 WEIGHT OF LOG WALLS <\/td>\n<\/tr>\n | ||||||
55<\/td>\n | TABLE 302.2.3.10\u2014continued WEIGHT OF LOG WALLS <\/td>\n<\/tr>\n | ||||||
56<\/td>\n | FIGURE 302.2.4(1) NOTCHES AND BORED HOLES IN SINGLE-SPAN BEAMS FIGURE 302.2.4(2) NOTCHES AND HOLES IN MULTIPLE-SPAN BEAMS <\/td>\n<\/tr>\n | ||||||
58<\/td>\n | SECTION 303 FIRE-RESISTANCE RATINGS OF LOGS AND LOG ASSEMBLIES SECTION 304 PROVISIONS FOR SETTLING IN LOG STRUCTURES <\/td>\n<\/tr>\n | ||||||
60<\/td>\n | TABLE 304.2.2.1.3 SHRINKAGE COEFFICIENTS <\/td>\n<\/tr>\n | ||||||
61<\/td>\n | TABLE 304.2.2.2.2.2 PRESCRIBED SETTLING ALLOWANCE FOR NONHORIZONTAL BEARING SURFACES <\/td>\n<\/tr>\n | ||||||
62<\/td>\n | TABLE 304.2.2.2.2.1 BEARING CAPACITY (lb\/in) OF WALL-LOGS <\/td>\n<\/tr>\n | ||||||
63<\/td>\n | TABLE 304.2.2.2.2.1\u2014continued BEARING CAPACITY (lb\/in) OF WALL-LOGS <\/td>\n<\/tr>\n | ||||||
64<\/td>\n | TABLE 304.2.2.3.3 PRESCRIBED SETTLING ALLOWANCE DUE TO SHRINKAGE <\/td>\n<\/tr>\n | ||||||
65<\/td>\n | SECTION 305 THERMAL ENVELOPE <\/td>\n<\/tr>\n | ||||||
67<\/td>\n | TABLE 305.3.1.1 U-FACTOR OF LOG WALL (UW) BY LOG THICKNESS (WL) AND SPECIFIC GRAVITY (Gu) <\/td>\n<\/tr>\n | ||||||
68<\/td>\n | TABLE 305.3.1.1\u2014continued U-FACTOR OF LOG WALL (UW) BY LOG THICKNESS (WL) AND SPECIFIC GRAVITY (Gu) <\/td>\n<\/tr>\n | ||||||
69<\/td>\n | TABLE 305.3.1.2 INSULATION AND FENESTRATION REQUIREMENTS BY COMPONENTa <\/td>\n<\/tr>\n | ||||||
70<\/td>\n | TABLE 305.4.3.2 HEAT CAPACITY OF SOLID WOOD SECTION 306 INFILTRATION <\/td>\n<\/tr>\n | ||||||
73<\/td>\n | CHAPTER 4: STRUCTURAL PROVISIONS SECTION 401 GENERAL SECTION 402 PRESCRIPTIVE PROVISIONS SECTION 403 ENGINEERED PROVISIONS <\/td>\n<\/tr>\n | ||||||
74<\/td>\n | TABLE 403.1 MAXIMUM DIAPHRAGM ASPECT RATIOS (HORIZONTAL OR SLOPED DIAPHRAGMS) SECTION 404 CONNECTIONS <\/td>\n<\/tr>\n | ||||||
75<\/td>\n | SECTION 405 FLOOR SYSTEMS <\/td>\n<\/tr>\n | ||||||
76<\/td>\n | SECTION 406 LOG WALLS SECTION 407 ROOF SYSTEMS <\/td>\n<\/tr>\n | ||||||
77<\/td>\n | CHAPTER 5: REFERENCED STANDARDS ASTM AWC <\/td>\n<\/tr>\n | ||||||
78<\/td>\n | ICC UL <\/td>\n<\/tr>\n | ||||||
79<\/td>\n | APPENDIX A US CLIMATE ZONES BY COUNTY TABLE A101.1 (IECC R301.1) CLIMATE ZONES, MOISTURE REGIMES, AND WARM-HUMID DESIGNATIONS BY STATE, COUNTY AND TERRITORYa <\/td>\n<\/tr>\n | ||||||
80<\/td>\n | TABLE A101.1 (IECC R301.1)\u2014continued CLIMATE ZONES, MOISTURE REGIMES, AND WARM-HUMID DESIGNATIONS BY STATE, COUNTY AND TERRITORYa <\/td>\n<\/tr>\n | ||||||
81<\/td>\n | TABLE A101.1 (IECC R301.1)\u2014continued CLIMATE ZONES, MOISTURE REGIMES, AND WARM-HUMID DESIGNATIONS BY STATE, COUNTY AND TERRITORYa <\/td>\n<\/tr>\n | ||||||
82<\/td>\n | TABLE A101.1 (IECC R301.1)\u2014continued CLIMATE ZONES, MOISTURE REGIMES, AND WARM-HUMID DESIGNATIONS BY STATE, COUNTY AND TERRITORYa <\/td>\n<\/tr>\n | ||||||
83<\/td>\n | TABLE A101.1 (IECC R301.1)\u2014continued CLIMATE ZONES, MOISTURE REGIMES, AND WARM-HUMID DESIGNATIONS BY STATE, COUNTY AND TERRITORYa <\/td>\n<\/tr>\n | ||||||
84<\/td>\n | TABLE A101.1 (IECC R301.1)\u2014continued CLIMATE ZONES, MOISTURE REGIMES, AND WARM-HUMID DESIGNATIONS BY STATE, COUNTY AND TERRITORYa <\/td>\n<\/tr>\n | ||||||
85<\/td>\n | TABLE A101.1 (IECC R301.1)\u2014continued CLIMATE ZONES, MOISTURE REGIMES, AND WARM-HUMID DESIGNATIONS BY STATE, COUNTY AND TERRITORYa <\/td>\n<\/tr>\n | ||||||
86<\/td>\n | TABLE A101.1 (IECC R301.1)\u2014continued CLIMATE ZONES, MOISTURE REGIMES, AND WARM-HUMID DESIGNATIONS BY STATE, COUNTY AND TERRITORYa <\/td>\n<\/tr>\n | ||||||
87<\/td>\n | TABLE A101.1 (IECC R301.1)\u2014continued CLIMATE ZONES, MOISTURE REGIMES, AND WARM-HUMID DESIGNATIONS BY STATE, COUNTY AND TERRITORYa <\/td>\n<\/tr>\n | ||||||
88<\/td>\n | TABLE A101.1 (IECC R301.1)\u2014continued CLIMATE ZONES, MOISTURE REGIMES, AND WARM-HUMID DESIGNATIONS BY STATE, COUNTY AND TERRITORYa <\/td>\n<\/tr>\n | ||||||
89<\/td>\n | TABLE A101.1 (IECC R301.1)\u2014continued CLIMATE ZONES, MOISTURE REGIMES, AND WARM-HUMID DESIGNATIONS BY STATE, COUNTY AND TERRITORYa <\/td>\n<\/tr>\n | ||||||
90<\/td>\n | TABLE A101.1 (IECC R301.1)\u2014continued CLIMATE ZONES, MOISTURE REGIMES, AND WARM-HUMID DESIGNATIONS BY STATE, COUNTY AND TERRITORYa <\/td>\n<\/tr>\n | ||||||
91<\/td>\n | TABLE A101.1 (IECC R301.1)\u2014continued CLIMATE ZONES, MOISTURE REGIMES, AND WARM-HUMID DESIGNATIONS BY STATE, COUNTY AND TERRITORYa <\/td>\n<\/tr>\n | ||||||
92<\/td>\n | TABLE A101.1 (IECC R301.1)\u2014continued CLIMATE ZONES, MOISTURE REGIMES, AND WARM-HUMID DESIGNATIONS BY STATE, COUNTY AND TERRITORYa <\/td>\n<\/tr>\n | ||||||
93<\/td>\n | TABLE A101.1 (IECC R301.1)\u2014continued CLIMATE ZONES, MOISTURE REGIMES, AND WARM-HUMID DESIGNATIONS BY STATE, COUNTY AND TERRITORYa <\/td>\n<\/tr>\n | ||||||
94<\/td>\n | TABLE A101.1 (IECC R301.1)\u2014continued CLIMATE ZONES, MOISTURE REGIMES, AND WARM-HUMID DESIGNATIONS BY STATE, COUNTY AND TERRITORYa <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" ICC 400-2022: Standard on the Design and Construction of Log Structures<\/b><\/p>\n |