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EUROCODES Innovation and Sustainability with Glass

Structural Design of Glass Components and Joints 1

Glass as a structural material in construction

-

towards a Eurocode on Structural Glass

Markus Feldmann Prof. Dr.-Ing.

RWTH Aachen University

Construction standards

A driver for innovation and industry

Riga, 3 June 2015

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EUROCODES Innovation and Sustainability with Glass

Structural Design of Glass Components and Joints 2

Structural Glass

Line supported

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EUROCODES Innovation and Sustainability with Glass

Structural Design of Glass Components and Joints 3

Structural Glass

Bent glass

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EUROCODES Innovation and Sustainability with Glass

Structural Design of Glass Components and Joints 4

Structural Glass

Point fixated

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EUROCODES Innovation and Sustainability with Glass

Structural Design of Glass Components and Joints 5

Structural Glass

Adhesive bonded Overhead glazing

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EUROCODES Innovation and Sustainability with Glass

Structural Design of Glass Components and Joints 6

Structural Glass

Primary Structural Elements

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EUROCODES Innovation and Sustainability with Glass

Structural Design of Glass Components and Joints 7

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1851 1960

Crystal Palace Railway Station (1980) Crystal Palace Paxton

Milestones of Glass production and Glass architecture

annealed

glass

Laminated

glass

1930

fully

toughened

glass

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EUROCODES Innovation and Sustainability with Glass

Structural Design of Glass Components and Joints 8

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1995 2004

Main Station Facade in Berlin Exhibition Hall Leipzig

Heat strengthened glass

Milestones of Glass production and Glass architecture

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EUROCODES Innovation and Sustainability with Glass

Structural Design of Glass Components and Joints 9

Design of Structural Glass

• Structural Glass – more and more frequently used in construction

• Structural Glass needs safety verification

• But Today, design of Structural Glass and its safety verification

are performed according to National Codes and „habits“

• National Design Codes are different in EU member states in

terms of safety and mechanical approach

• Differences of the National Design Codes represent hinderance

of free market trade

• Need for a European Design Code on Structural Glass

Conclusions for the European construction industry

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EUROCODES Innovation and Sustainability with Glass

Structural Design of Glass Components and Joints 10

The Structural Eurocodes family

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EUROCODES Innovation and Sustainability with Glass

Structural Design of Glass Components and Joints 11

Product Specifications

CEN/TC 129

Product Standards

Testing Standards

ETAG´s

ETA´s

EOTA

CEN/TC 250

SCs, EGs, HGs,WGs

CEN/TC250-WG3

CEN/TC129

CEN/TC135

CEN/TC 250

Structural design rules Execution rules

Delivery conditions of prefabricated structural glass components

CEN/TC250-WG3

Three pillars principle

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EUROCODES Innovation and Sustainability with Glass

Structural Design of Glass Components and Joints 12

CEN TC 250/WG3

Scientific and Policy Report

(“SaP – Report”)

EN = EUROCODE

CEN TS (previously known as

ENV but with explanations)

Trial use / Commenting

(2 years)

CEN TC 250 response to Mandate M/515

Subject to agreement of

CEN TC 250

CEN TC 250 decision

converting CEN TS into EN

Response to Specific Mandate M/515

Accomplished !

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EUROCODES Innovation and Sustainability with Glass

Structural Design of Glass Components and Joints 13

SaP-Report published at JRC Ispra

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EUROCODES Innovation and Sustainability with Glass

Structural Design of Glass Components and Joints 14

Response to Specific Mandate M/515

CEN

TC 250/WG3

WG3.Task1 SaP-Report

WG3.T2.1 General Rules and

Materials

WG3.T2.2 Design for plates, its

supports and fixations

WG3.T2.3 Design of primary

members, beams, columns and

special joints

WG 3.Task 3

Conversion of CEN-TS

into EN “EUROCODE”

WG3.Task 2

CEN Technical

Specification

(CEN-TS)

State of the art and science

Same structure planned as CEN-TS

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EUROCODES Innovation and Sustainability with Glass

Structural Design of Glass Components and Joints 15

CEN TS / Eurocode

Part 1: Basis of design of glass structures, materials and products

Part 2: Design of Secondary structural elements

Part 3: Special design of Primary structural elements

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EUROCODES Innovation and Sustainability with Glass

Structural Design of Glass Components and Joints 16

Float HSG TTG

strength

Prestressing

Number of breakage pieces

Redundancy capacity if used as laminated glass

Products

CEN TS / Eurocode: Part 1

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EUROCODES Innovation and Sustainability with Glass

Structural Design of Glass Components and Joints 17

Products: Glass (Strength)

CEN TS / Eurocode: Part 1

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EUROCODES Innovation and Sustainability with Glass

Structural Design of Glass Components and Joints 18

Products: Quality of tempering

CEN TS / Eurocode: Part 1

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EUROCODES Innovation and Sustainability with Glass

Structural Design of Glass Components and Joints 19

Products: Interlayers (stiffness)

CEN TS / Eurocode: Part 1

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EUROCODES Innovation and Sustainability with Glass

Structural Design of Glass Components and Joints 20

Requirements: Durability

CEN TS / Eurocode: Part 1

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EUROCODES Innovation and Sustainability with Glass

Structural Design of Glass Components and Joints 21

Products: TTG

CEN TS / Eurocode: Part 1

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EUROCODES Innovation and Sustainability with Glass

Structural Design of Glass Components and Joints 22

Design: Redundancy

CEN TS / Eurocode: Part 2

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EUROCODES Innovation and Sustainability with Glass

Structural Design of Glass Components and Joints 23

Design: Redundancy and failure

consequence

CEN TS / Eurocode: Part 2

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EUROCODES Innovation and Sustainability with Glass

Structural Design of Glass Components and Joints 24

Glass walls: impact

Vertikalschnitt

Fallh

öh

e

hPendelkörper:

Druck = 4,0 bar

m = 50 kg

Ansicht Auftreffstellen

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2

1

2

3

Scheibenmitte A (1000/1000)

Rand (1000/300)

Ecke (300/300)

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4

(x/y) Randabstände des Pendelschwerpunktes

bezogen auf die linke untere Scheibenecke

3 Scheibenmitte B (1000/630)

CEN TS / Eurocode: Part 2

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EUROCODES Innovation and Sustainability with Glass

Structural Design of Glass Components and Joints 25

Glass floors and roofs: impact

CEN TS / Eurocode: Part 2

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EUROCODES Innovation and Sustainability with Glass

Structural Design of Glass Components and Joints 26

CEN TS / Eurocode: Part 3

Enhanced Redundancy

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EUROCODES Innovation and Sustainability with Glass

Structural Design of Glass Components and Joints 27

Connections: bearing capacity

V N

M

M

N

V Lochbohrung

Glasscheibe (VSG)

Zwischenschicht (Vergussmörtel)

Aluminiumhülse

Stahlbolzen

CEN TS / Eurocode: Part 3

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EUROCODES Innovation and Sustainability with Glass

Structural Design of Glass Components and Joints 28

Connections: bearing capacity

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ELEMENTS

Adhesively Bonded

Connections Glasbauteil

elastische

Klebfuge

Rahmen

Belastungen

Glasbauteil

elastische

Klebfuge

Glasbauteilelastische

Klebfuge

Rahmen

Belastungen

CEN TS / Eurocode: Part 3

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EUROCODES Innovation and Sustainability with Glass

Structural Design of Glass Components and Joints 29

Glass columns: Stability and Strength

CEN TS / Eurocode: Part 3

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EUROCODES Innovation and Sustainability with Glass

Structural Design of Glass Components and Joints 30

Hybrid members in bending: load carrying capacity

CEN TS / Eurocode: Part 3

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EUROCODES Innovation and Sustainability with Glass

Structural Design of Glass Components and Joints 31

Thank you for your attention!

CEN TS / Eurocode: Part 3

Glass beams and glass roofing: load carrying capacity