ДСТУ EN 13381-9:2022 Методы испытаний на огнестойкость конструкционных элементов. Часть 9. Системы противопожарной защиты стальных балок с отверстиями в перегородке (EN 13381-9:2015, IDT)

ДСТУ EN 13381-9:2022
(EN 13381-9:2015, IDT)

Методи випробувань на вогнестійкість конструкційних елементів. Частина 9. Системи протипожежного захисту сталевих балок із отворами в перегородці

 
     
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Contents

Foreword

Introduction

1 Scope

2 Normative references

3 Terms and definitions, symbols and units

3.1 Terms and definitions

3.2 Symbols and units

4 Test equipment

4.1 General

4.2 Furnace

4.3 Test conditions

5 Test specimens

5.1 General

5.2 Precautions against erroneous results

5.3 Construction of steel test specimens

5.3.1 Cellular beam test sections

5.3.2 Application of the fire protection material to the test sections

5.4 Composition of test specimen component materials

5.4.1 Steel sections

5.4.2 Fire protection materials

5.4.3 Fire protection thickness requirements for sprayed materials

5.4.4 Selection of test specimens

6 Installation of the test specimens

6.1 Fixing

6.2 Installation pattern

6.3 Furnace Load

6.4 Conditioning of the test specimens

7 Application of instrumentation

7.1 General

7.2 Instrumentation for measurement of furnace temperature

7.2.1 General

7.2.2 Furnace temperature in the region of test specimens

7.3 Instrumentation for measurement and determination of steel temperatures

7.3.1 General

7.3.2 Location of thermocouples attached to the Beams

7.3.3 Location of web reference thermocouples

7.4 Instrumentation for measurement of pressure

8 Test procedure

8.1 General

8.2 Furnace temperature and pressure

8.3 Temperature of steelwork

8.4 Observations

8.5 Termination of test

9 Test results

9.1 Acceptability of test results

9.2 Test report and presentation of test results

10 Assessment

10.1 General

10.2 Determination of mean web post and web reference temperatures

10.3 Determination of web post lines

10.4 Additional thermal modification factors

10.5 Determination of limiting temperature

10.6 Determination of EMTA

11 Report of the assessment

12 Limits of the applicability of the results of the assessment

Annex A (informative) Determination of Product Thickness on Beams with Web Openings

A.1 Purpose

A.2 Background

A.3 Overview of structural geometry

A.4 Interaction with EN 13381-4 and EN 13381-8

A.5 Steel temperature distribution

A.6 Structural analysis of the beam design

A.7 Determination of fire protection thickness

A.7.1 Product specific analysis on the basis of a specified critical temperature

A.7.2 Iterative protection thickness analysis

A.7.3 Iterative steel temperature analysis

A.8 Structural models

Annex B (informative) The logic for determining the web post average temperature

Bibliography