NFPA 13-2022 amd8-2023

VIP免费

那山那人那狗 2024-12-29 49 558.8KB 13 页 8星币

侵权投诉

Tentative Interim Amendment

NFPA® 13

Standard for the Installation of Sprinkler Systems

2022 Edition

Reference: Various in Chapters 3, 4, and 18

TIA 22-8

(SC 23-11-4/ TIA Log #1747)

Pursuant to Section 5 of the NFPA Regulations Governing the Development of NFPA Standards, the National Fire

Protection Association has issued the following Tentative Interim Amendment to NFPA 13, Standard for the Installation of

Sprinkler Systems, 2022 edition. The TIA was processed by the Technical Committee on Hanging and Bracing of Water-

Based Fire Protection Systems, and the Correlating on Automatic Sprinkler Systems and was issued by the Standards

Council on November 30, 2023, with an effective date of December 20, 2023.

1. Revise definitions 3.3.104 and 3.3.198 to read as follows:

3.3.104 Horizontal Force, Fpw. The horizontal force due to seismic load acting on a brace sprinkler system at working

stress levels. (AUT-HBS)

3.3.198 Short Period Design Spectral Response Acceleration Parameter at Short Periods, SsDS. The maximum

considered earthquake ground motion for 0.2-second spectral response acceleration (5 percent of critical damping), site

Class B for a specific site at short periods for the site of the building or structure being designed to satisfy the seismic

requirements of ASCE/SEI 7, Minimum Design Loads and Associated Criteria for Buildings and Other Structures, based

on ASCE/SEI 7 Chapter 22 seismic ground motion maps and Chapter 11 seismic design criteria, or directly from the

ASCE/SEI 7 Hazard Tool, or by using the site-specific ground motion procedures of ASCE/SEI 7 Chapter 21. (AUT-

HBS)

2. Revise 4.2 to read as follows:

4.2* Owner’s Certificate. The owner(s) of a building or structure where the fire sprinkler system is going to be installed

or their authorized agent shall provide the sprinkler system installer with the following information prior to the layout and

detailing of the fire sprinkler system [see Figure A.28.1(b)]:

(1) Intended use of the building, including the materials within the building and the maximum height of any storage

(2) A preliminary plan of the building or structure along with the design concepts necessary to perform the layout and

detail for the fire sprinkler system

(3) *Water supply information as identified in 5.2.2

(4) *Any special knowledge of the water supply, including known environmental conditions that might be responsible

for corrosion, including microbiologically influenced corrosion (MIC)

(5) Whether seismic protection is required and the applicable short period response parameter design spectral response

acceleration at short periods, SDS

(6) …

3. Revise Owner’s Certificate (Figure A.28.1(b)) on page 2 to read as follows:

Provide short-period spectral response parameter design spectral response acceleration at short periods,

SDS:

4. Revise various paragraphs/tables in Chapter 18 and associated Annex material to read as follows:

18.1.2 Alternative methods of providing earthquake protection of sprinkler systems based on a seismic analysis certified

by a registered professional engineer such that system performance will be at least equal to that of the building structure

required by ASCE/SEI 7, Minimum Design Loads and Associated Criteria for Buildings and Other Structures, for

components required to function for life-safety purposes after an earthquake under expected seismic forces shall be

permitted.

18.5.5.2 The spacing between lateral sway braces shall be in accordance with either Table 18.5.5.2(a) through Table

18.5.5.2(n) or 18.5.5.3, based on the piping material of the sprinkler system.

Table 18.5.5.2(a) Maximum Load (Fpw) in Zone of Influence (lb), (Fy = 30 ksi) Schedule 10

Steel Pipe

Diameter of Pipe (in.) Being Braced

Lateral Sway Brace Spacing (ft)

≤20

>20 & ≤25

>25 & ≤30

>30 & ≤35

>35 & ≤40

4445

3839

11⁄4

107

7071

5051

11⁄2

146147

117

8283

6970

236237

189190

155156

133

111

21⁄2

388389

311

255

218219

183

585586

468469

384

329330

275276

⁄

777

621622

509510

436437

365366

991

792793

649650

556557

466467

17051706

13641365

1118

958959

802803

6 and larger*

2448

1959

1605

13751376

1152

Note: ASTM A106 Grade B or ASTM A53 Grade B has an Fy = 35 ksi. An Fy = 30 ksi was used as a

conservative value to account for differences in material properties as well as other operational stresses.

*Larger load values for larger diameter pipe can be used when justified by engineering analysis.

Table 18.5.5.2(b) Maximum Load (Fpw) in Zone of Influence (kgN), (Fy = 207 N/mm2) Schedule

10 Steel Pipe

Diameter of Pipe (mm) Being Braced

Lateral Sway Brace Spacing (m)

≤6.1

>6.1 & ≤7.6

>7.6 & ≤9.1

>9.1 & ≤11

31302

240

200

173

15142

49476

39383

32316

27267

23227

66654

53520

44427

37369

31311

1071054

86845

70694

60592

50494

1761730

1411383

1161134

99974

83814

2652607

2122086

1741708

1491468

1251228

3523456

2822767

2312269

1981944

1661628

100

4504408

3593527

2942891

2522478

2112077

125

7737589

6196072

5074973

4354266

3643572

150 and larger*

111010889

8898714

7287139

6246121

5235124

Note: ASTM A106 Grade B or ASTM A53 Grade B has an Fy = 241 N/mm2. An Fy = 207 N/mm2 was used

also as a conservative value to account for differences in material properties as well as other operational

stresses.

*Larger load values for larger diameter pipe can be used when justified by engineering analysis.

Table 18.5.5.2(c) Maximum Load (Fpw) in Zone of Influence (lb), (Fy= 30 ksi) Schedule 40 Steel

Pipe

文档加载中……请稍候！
如果长时间未打开，您也可以点击刷新试试。

下载文档到电脑，查找使用更方便

亲，本站95%以上的标准规范都面向会员免费，办理VIP会员下载更省钱，平均每篇不到2元

立即下载 VIP免费下载

摘要：

NFPA 13-2022 amd8-2023 是美国国家消防协会发布的自动喷水灭火系统安装标准的最新修订版本，旨在进一步优化商业与住宅建筑中喷淋系统的设计、安装和验收要求。该修订版（amd8）引入针对特殊火灾风险、管道材料更新以及系统水力计算方法的更严格规定，同时澄清了与喷头布置、供水可靠性及现有系统改造相关的关键条款。作为全球消防工程领域的重要参考文件，NFPA 13-2022 amd8-2023 为工程师、承包商和监管机构提供了统一的技术依据，有助于提升建筑内财产与人员的安全防护水平，并确保

展开>> 收起<<

NFPA 13-2022 amd8-2023.pdf

共13页,预览4页

还剩页未读，继续阅读

声明：本文档系会员上传，若文档所含内容侵犯了您的版权或隐私，请立即通知，我们立即给予侵权申诉删除！

NFPA 13-2022 amd8-2023

相关推荐

开通VIP享超值会员特权

相关内容

热门标签

举报选择: