ДСТУ CEN/TR 17231:2022 Еврокод 1. Воздействие на конструкции. Транспортные погрузки на мосты. Взаимодействие пути и моста (CEN/TR 17231:2018, IDT)



ДСТУ CEN/TR 17231:2022
(CEN/TR 17231:2018, IDT)

Єврокод 1. Вплив на конструкції. Транспортні навантаження на мости.
Взаємодія колії та мосту

 
   
 
 
     
Не є офіційним виданням.
Офіційне видання розповсюджує національний орган стандартизації
(ДП «УкрНДНЦ» http://uas.gov.ua)

Contents

European foreword

Introduction

1 Scope

2 Normative references

3 Terms and definitions

4 Symbols and abbreviations

5 Description of the Technical Issue

5.1 General

5.2 Axial effects

5.3 Vertical effects

5.4 Limits to the need for detailed calculations

5.5 Calculation of multiple loading conditions

5.6 Effect of bridge deformations

5.7 Effects on track construction and maintenance activities

6 History and background

6.1 Existing codes and standards

6.2 Differences between national rules

7 Case studies

7.1 Scheldt River Bridge (Belgium)

7.2 Dedicated high speed lines in France and Spain

7.3 Olifants River Bridge (South Africa)

7.4 Bridges on Denver RTD (USA)

7.5 Historic bridges in central Europe

7.6 Semi-integral bridges on German high speed lines

8 Design considerations for track

8.1 Representation of axial behaviour of track

8.2 Understanding of ballast behaviour

8.3 Description/ limitations of available track devices for mitigation of effects

8.4 Description/ limitations of bridge design for mitigation of effects

8.5 Effects of track curvature and switches and crossings

9 Design criteria

9.1 General

9.2 Displacement limits

9.3 Differentiation between ultimate- and service-loading

9.4 Safety factors

9.5 Differences between ballasted and ballastless tracks

9.6 Calculations for configurations with rail expansion devices

10 Calculation methods

10.1 Methods in EN 1991-2:2003

10.2 Load configurations

10.3 Sensitivity analysis

10.4 Numerical comparisons of calculation methods

11 Information and process management

12 GUIDANCE - Current best practice

12.1 Bridge design principles

12.2 Track design principles

13 Recommendations for future standards development

14 Recommendations for future research and development

14.1 General

14.2 Improved input data for existing calculation methods

14.3 Extension of existing models to include other track configurations

14.4 Collecting data for better verification of analytical models

14.5 Providing a basis for developing new, more rigorous, models

Annex A (informative) Calculation of rail break gap

Annex В (informative) Algebraic studies of longitudinal track characteristics

Annex C (informative) Examples of Track-Bridge Interaction calculations

Annex D (informative) Alternative method for determining the combined response of a structure and track to variable actions

Annex E (informative) Proposed revision of EN 1991-2:2003, 6.5.4

Bibliography