No. 27490 (Amendment): R156-56-704. Statewide Amendments to the IBC

DAR File No.: 27490
Filed: 10/14/2004, 12:34
Received by: NL

 

RULE ANALYSIS

Purpose of the rule or reason for the change:

The Division is filing an amendment to the section to implement the semiannual proposed changes to building codes that have been approved by the Uniform Building Code Commission after review by the appropriate subcommittees. This amendment is being proposed separately because there may be further adjustments needed depending on comments at the public hearing. (DAR NOTE: Another proposed amendment to Rule R156-56 is found under DAR No. 27489 in this issue.)

 

Summary of the rule or change:

This proposed change adds an amendment to Section 1621.1 (Subsection R156-56-704(47)) and adds a new Section 1621.1.4. The proposed amendments modify a fire sprinkler requirement that is overly restrictive and costly to be more appropriate. The remaining subsections are renumbered.

 

State statutory or constitutional authorization for this rule:

Subsections 58-1-106(1)(a), 58-1-202(1)(a), 58-56-4(2), and 58-56-6(2)(a); and Section 58-56-1

 

Anticipated cost or savings to:

the state budget:

The Division has determined that there should be no direct effect on the state budget as a result of this proposed amendment.

 

local governments:

The Division has determined that there should be no direct effect on a local government budget as a result of this proposed amendment.

 

other persons:

Overall the proposed amendment does not appear to substantially change costs of construction. The proposed amendment will allow minor savings to building owners, residential homeowners, and fire sprinkler contractors. It is impossible to estimate total aggregate impact because it would depend on the specific project, but cost differences are expected to be minor.

 

Compliance costs for affected persons:

Overall the proposed amendment does not appear to substantially change costs of construction. The proposed amendment will allow minor savings to building owners, residential homeowners, and fire sprinkler contractors. It is impossible to estimate total possible savings for each person because it would depend on the specific project, but cost differences are expected to be minor.

 

Comments by the department head on the fiscal impact the rule may have on businesses:

The proposed amendment adopts the requirement for a one-inch space around fire sprinklers, which is less restrictive than the requirement in the International Building Code. It is not year clear what effect this modification will have, but it is anticipated that there will be a slight cost savings to home and building owners and contractors. The proposed rule change will allow for installation of less expensive sprinkler heads without compromising safety since the one-inch heads will be used only with breakaway ceilings; two-inch heads will continue to be required in rigid ceilings constructed, for example, with metal materials. Klarice A. Bachman, Executive Director

 

The full text of this rule may be inspected, during regular business hours, at the Division of Administrative Rules, or at:

Commerce
Occupational and Professional Licensing
HEBER M WELLS BLDG
160 E 300 S
SALT LAKE CITY UT 84111-2316

 

Direct questions regarding this rule to:

Dan S. Jones at the above address, by phone at 801-530-6720, by FAX at 801-530-6511, or by Internet E-mail at [e-mail]

 

Interested persons may present their views on this rule by submitting written comments to the address above no later than 5:00 p.m. on:

12/01/2004

 

Interested persons may attend a public hearing regarding this rule:

11/15/2004 at 9:00 AM, State Office Building, Room 4112 (fourth floor), Salt Lake City, UT

 

This rule may become effective on:

12/02/2004

 

Authorized by:

J. Craig Jackson, Director

 

 

RULE TEXT

R156. Commerce, Occupational and Professional Licensing.

R156-56. Utah Uniform Building Standard Act Rules.

R156-56-704. Statewide Amendments to the IBC.

The following are adopted as amendments to the IBC to be applicable statewide:

 

. . . . . . .

 

(46) Section 1618.1 is deleted and replaced with the following:

1618.1 Dynamic analysis procedures. The following dynamic analysis procedures are permitted to be used in lieu of the equivalent lateral force procedure of Section 1617.4:

1. Modal Response Spectral Analysis.

2. Linear Time-history Analysis.

3. Nonlinear Time-history Analysis.

The dynamic analysis procedures listed above shall be performed in accordance with the requirements of Section 9.5.6, 9.5.7, and 9.5.8 respectively, of ASCE 7. Roof snow loads to be included in the seismic dead load (W) may be adjusted as outlined in Section 1616.4.1, Item 4, as amended.

(47) Section 1621.1 is deleted and replaced with the following:

1621.1 Component design. Architectural, mechanical, electrical and nonstructural systems, components and elements permanently attached to structures, including supporting structures and attachments (hereinafter referred to as "components"), and nonbuilding structures that are supported by other structures, shall meet with requirements of Section 9.6 of ASCE 7 except as modified in Sections 1621.1.1, 1621.1.2, 1621.1.3, and 1621.1.4, excluding Section 9.6.3.11.2, of ASCE 7, as amended in this section.

(48) A new Section 1621.1.4 is added as follows:

1621.1.4 ASCE 7, Section 9.6.2.6.2.2 paragraph (e) is modified to read as follows:

(e) Penetrations shall have a sleeve or adapter through the ceiling tile to allow for free movement of at least 1 inch (25 mm) in all horizontal directions.

Exceptions:

1. Where rigid braces are used to limit lateral deflections.

2. At fire sprinkler heads in frangible surfaces per NFPA 13.

([47]49) Section 1805.2.1 is deleted and replaced with the following:

Sections 1805.2.1 Frost protection. Except where otherwise protected from frost, foundation walls, piers and other permanent supports of buildings and structures shall be protected from frost by one or more of the following methods:

(1) Extending below the frost line of the locality;

(2) Constructed in accordance with ASCE-32; or

(3) Erected on solid rock.

Exception: Freestanding buildings meeting all of the following conditions shall not be required to be protected:

1. Classified in Importance Category I(see Table 1604.5), or Occupancy Group U (see Section 312);

2. Area of 1,000 square feet (93m²) or less;

3. Eave height of 10 feet (3048 mm) or less; and

4. Constructed of light-wood-framed construction.

Footings shall not bear on frozen soil unless such frozen condition is of a permanent character.

([48]50) Section 1805.5 is deleted and replaced with the following:

1805.5 Foundation walls. Concrete and masonry foundation walls shall be designed in accordance with Chapter 19 or 21. Foundation walls that are laterally supported at the top and bottom and within the parameters of Tables 1805.5(1) through 1805.5(4) are permitted to be designed and constructed in accordance with Sections 1805.5.1 through 1805.5.5. Concrete foundation walls may also be constructed in accordance with Section 1805.5.8.

([49]51) A new section 1805.5.8 is added as follows:

1805.5.8 Empirical foundation design. Group R, Division 3 Occupancies three stories or less in height, and Group U Occupancies, which are constructed in accordance with Section 2308, or with other methods employing repetitive wood-frame construction or repetitive cold-formed steel structural member construction, shall be permitted to have concrete foundations constructed in accordance with Table 1805.5(5).

([50]52) Table 1805.5(5) is added as follows:

Table 1805.5(5), entitled "Empirical Foundation Walls, dated September 1, 2002, published by the Department of Commerce, Division of Occupational and Professional Licensing is hereby adopted and incorporated by reference. Table 1805.5(5) identifies foundation requirements for empirical walls.

([51]53) A new section 2306.1.4 is added as follows:

2306.1.4 Load duration factors. The allowable stress increase of 1.15 for snow load, shown in Table 2.3.2, Frequently Used Load Duration Factors, C_d, of the National Design Specifications, shall not be utilized at elevations above 5,000 feet (1524 M).

([52]54) Section 2308.6 is deleted and replaced with the following:

2308.6 Foundation plates or sills. Foundations and footings shall be as specified in Chapter 18. Foundation plates or sills resting on concrete or masonry foundations shall comply with Section 2304.3.1 and shall be bolted or anchored by one of the following:

1. Foundation plates or sill shall be bolted or anchored to the foundation with not less than 1/2 inch (12.7 mm) diameter steel bolts or approved anchors. Bolts shall be embedded at least 7 inches (178 mm) into concrete or masonry, and spaced not more than 6 feet (1829 mm) apart. There shall be a minimum of two bolts or anchor straps per piece with one bolt or anchor strap located not more than 12 inches (305 mm) or less than 4 inches (102 mm) from each end of each piece.

2. Foundation plates or sills shall be bolted or anchored to the foundation with not less than 1/2 inch (12.7 mm) diameter steel bolts or approved anchors. Bolts shall be embedded at least 7 inches (178 mm) into concrete or masonry, and spaced not more than 32 inches (816 mm) apart. There shall be a minimum of two bolts or anchor straps per piece located not less than 4 inches (102 mm) from each end of each piece.

A properly sized nut and washer shall be tightened on each bolt to the plate.

([53]55) In Section 2902.1, the title for Table 2902.1 is deleted and replaced with the following and footnote f is added as follows: Table 2902.1, Minimum Number of Plumbing Facilities^{a, f}.

FOOTNOTE: f. When provided, in public toilet facilities there shall be an equal number of diaper changing facilities in male toilet rooms and female toilet rooms.

([54]56) A new section 2902.1.1 is added as follows:

2902.1.1 Unisex toilets and bath fixtures. Fixtures located within unisex toilet and bathing rooms complying with section 2902 are permitted to be included in determining the minimum number of fixtures for assembly and mercantile occupancies.

([55]57) Section 3006.5 Shunt Trip, the following exception is added:

Exception: Hydraulic elevators and roped hydraulic elevators with a rise of 50 feet or less.

([56]58) A new section 3403.5 is added as follows:

3403.5 Parapets and other appendages. Building constructed prior to 1975 with parapet walls, cornices, spires, towers, tanks, signs, statuary and other appendages shall have such appendages evaluated by a licensed engineer to determine resistance to design loads specified in this code when said building is undergoing reroofing, or alteration of or repair to said feature.

EXCEPTION: Group R-3 an U occupancies.

Original Plans and/or structural calculations may be utilized to demonstrate that the parapet or appendages are structurally adequate. When found to be deficient because of design or deteriorated condition, the engineer shall prepare specific recommendations to anchor, brace, reinforce or remove the deficient feature.

The maximum height of an unreinforced masonry parapet above the level of the diaphragm tension anchors or above the parapet braces shall not exceed one and one-half times the thickness of the parapet wall. The parapet height may be a maximum of two and one-half times its thickness in other than Seismic Design Categories D, E, or F. If the required parapet height exceeds this maximum height, a bracing system designed using the coefficients specified in ASCE 7-02 Table 9.6.2.2 shall support the top of the parapet. When positive diaphragm connections are absent, tension roof anchors shall be added. Approved alternative methods of equivalent strength will be considered when accompanied by engineer sealed drawings, details and calculations.

([57]59) The exception in 3409.1 is deleted and replaced with the following:

Exception: Type B dwelling or sleeping units required by section 1107 are not required to be provided in existing buildings and facilities, except when an existing occupancy is changed to R-2.

([58]60) In Section 3409.3, number 7 is added as follows:

7. When a change of occupancy in a building or portion of a building results in multiple dwelling or sleeping units as determined in section 1107.6.2, not less than 20 percent of the dwelling or sleeping units shall be Type B dwelling or sleeping units. These dwelling or sleeping units may be located on any floor of the building provided with an accessible route. Two percent, but not less than one, of the dwelling or sleeping units shall be Type A dwelling units.

([59]61) The following referenced standard is added under NFPA in chapter 35:

 

TABLE

                                              Referenced in code

Number               Title                    Section number

720-99       Recommended Practice for the     907.2.10.1, 907.2.10.5

             Installation of Household Carbon

             Monoxide (CO) Warning Equipment

 

([60]62) In Chapter 35, Referenced Standards, the following NFPA referenced standards are deleted and replaced with the current versions as follows:

 

TABLE

DELETED         REPLACED BY

13 - 99         13 - 02      Installation of Sprinkler Systems

13D - 99        13D - 02     Installation of Sprinkler Systems in

                             One- and Two-family Dwellings and

                             Manufactured Homes

13R - 99        13R - 02     Installation of Sprinkler Systems in

                             Residential Occupancies Up to and

                             Including Four Stories in Height

72 - 99         72 - 02      National Fire Alarm Code

101 - 00        101 - 03     Life Safety Code

 

 

KEY: contractors, building codes, building inspection, licensing

[August 17, ]2004

Notice of Continuation May 16, 2002

58-1-106(1)(a)

58-1-202(1)(a)

58-56-1

58-56-4(2)

58-56-6(2)(a)