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2006 Residential Code of Ohio John J. Hester, P.E., CBO SWOBOA President Understanding Section R602.10 Wall Bracing.

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Presentation on theme: "2006 Residential Code of Ohio John J. Hester, P.E., CBO SWOBOA President Understanding Section R602.10 Wall Bracing."— Presentation transcript:

1 2006 Residential Code of Ohio John J. Hester, P.E., CBO SWOBOA President Understanding Section R Wall Bracing

2 Seminar Goals… the forces are we designing to resist. For participants to leave this seminar with a general understanding of… the four wall bracing design approaches in the code. various wall bracing related definitions. the calculations involved in braced wall panel construction. more bracing stuff...

3 2006 RCO: Chapter 2 Definitions… BRACED WALL PANEL: A section of a braced wall line constructed in accordance with Section R for wood framing or Section R603.7 or R for cold-formed steel framing, which extends the full height of the wall.

4 2006 RCO: Chapter 2

5 BRACED WALL LINE: A series of braced wall panels in a single story constructed in accordance with Section R for wood framing or Section R603.7 or R for cold-formed steel framing to resist racking from seismic and wind forces. Definitions… 2006 RCO: Chapter 2

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7 DESIGN COLLECTOR: A structural member used to transmit tension/compression forces from the end of a braced wall line to the first braced wall panel. Definitions… (not in Chapter 2) 2006 RCO: Chapter 2 A design collector is only required when the first braced wall panel is located more than 12 ft. from the end of a braced wall line.

8 2006 RCO: Chapter 2

9 SHEAR WALL: A general term for walls that are designed and constructed to resist racking from seismic and wind by use of masonry, concrete, cold-formed steel or wood framing in accordance with Chapter 6 of this code and the associated limitations in Section R301.2 of this code. Definitions… 2006 RCO: Chapter 2

10 Seminar Goals… For participants to leave this seminar with a general understanding of… various wall bracing related definitions.

11 Applicability depends upon a jurisdictions location. Southwestern Ohio is in Design Category B. Building Planning… Section R Seismic provisions. Section R Wind limitations. The prescriptive requirements of this code apply to regions where the basic wind speed is less than 110 mph. Exempt from all seismic provision! 2006 RCO: Chapter 3

12 Seminar Goals… the forces are we designing to resist. For participants to leave this seminar with a general understanding of… various wall bracing related definitions.

13 Section R Wall bracing. There are four wall bracing design approaches: 1.Braced wall panel construction method, Section R Continuous structural panel sheathing method, Section R Alternate braced wall panel method, Section R Design of structural elements, Section R RCO: Chapter 6

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15 Seminar Goals… the forces are we designing to resist. For participants to leave this seminar with a general understanding of… the four wall bracing design approaches in the code. various wall bracing related definitions.

16 A Closer Look… RCO Section R

17 Section R Braced Wall Lines 2006 RCO: Chapter 6 1.Braced wall lines shall consist of braced wall panels. 2.Braced wall panels shall begin within 12.5 of each end. 3.Braced wall panels shall be in line with each other. Exception: Offsets out-of-plane of up to 4 are permitted provided that the total out-to- out offset dimension in any braced wall line does not exceed 8. 4.Design collectors are required when the braced wall panel begins more than 12 from either end of the braced wall line.

18 2006 RCO: Chapter 6

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20 Wall Construction… Section R Spacing. The building code requires all exterior walls to be laterally supported at intervals not exceeding 35'. This is accomplished by the use of braced wall lines RCO: Chapter 6

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26 Wall Construction… Section R Spacing. The designer has an option to increase the spacing of braced wall lines from 35' to 50' by utilizing the exception listed in Section R The exception stipulates a two-fold criteria: 1.The wall bracing provided equals or exceeds the amount of bracing required by Table R multiplied by a factor equal to the braced wall spacing divided by 35', and 2.The length-to-width ratio for the floor/wall diaphragm does not exceed 3: RCO: Chapter 6

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28 A Closer Look… Calculations from Section R

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48 A Closer Look… Table R …

49 A Closer Look… Section R …

50 Wall Construction… Section R Connections Braced wall panels shall be connected at their base by one of the following methods: 1.When paralleling the floor joists braced wall panels shall be placed over a joist and be nailed per the fastening schedule… 3-16d nails at 16oc. 2.When perpendicular to the floor joists braced wall panels shall occur over solid blocking placed between the floor joists and be nailed per the fastening schedule… 3-16d nails at 16oc RCO: Chapter 6

51 Seminar Goals… the forces are we designing to resist. For participants to leave this seminar with a general understanding of… the four wall bracing design approaches in the code. various wall bracing related definitions. the calculations involved in braced wall panel construction.

52 Continuous Structural Panel Sheathing Section R A Closer Look…

53 Figure R … 2006 RCO: Chapter 6

54 Figure R … 2006 RCO: Chapter 6

55 Figure R … 2006 RCO: Chapter 6

56 Alternate Braced Wall Panels Section R A Closer Look…

57 Figure R … 2006 RCO: Chapter 6

58 Design of Structural Elements Section R A Closer Look…

59 Section R … 2006 RCO: Chapter 6

60 Seminar Goals… the forces are we designing to resist. For participants to leave this seminar with a general understanding of… the four wall bracing design approaches in the code. various wall bracing related definitions. the calculations involved in braced wall panel construction. more bracing stuff…

61 Thank You! 2006 Residential Code of Ohio


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