ISO 22502:2020

Simplified design of connections of concrete claddings to concrete structures

The present document refers to the panel-to-structure and panel-to panel connections used for the cladding systems of reinforced concrete frame structures of single-storey buildings, typically precast. They can be used also for multi-storey buildings with proper modifications. The fastening devices considered in the present document consist mainly of steel elements or sliding connectors. Dissipative devices with friction or plastic behaviour are also considered. Other types of common supports and bond connections are treated where needed. The use of any other existing fastening types or the connections with different characteristics than those described in the following clauses is not allowed unless comparable experimental and analytical studies do provide the necessary data and verify the design methodology for the particular type.

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General Information

• Status: Published
• Publication Date: 02-Aug-2020
• ICS: 91.080.40 - Concrete structures
• Technical Committee: ISO/TC 71/SC 5 - Simplified design standard for concrete structures
• Drafting Committee: ISO/TC 71/SC 5 - Simplified design standard for concrete structures
• Current Stage: 9020 - International Standard under periodical review
• Start Date: 15-Jul-2025
• Completion Date: 15-Jul-2025

Standards Content (Sample)

INTERNATIONAL ISO
STANDARD 22502
First edition
2020-08
Simplified design of connections
of concrete claddings to concrete
structures
Reference number
©
ISO 2020
© ISO 2020
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting
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Published in Switzerland
ii © ISO 2020 – All rights reserved

Contents Page
Foreword .v
Introduction .vi
1 Scope .1
2 Normative references .1
3 Terms and definitions .1
4 Generalities .1
4.1 Cladding panel orientations . 1
4.2 Design criteria to connect frame and panels . 3
4.2.1 Isostatic approach. 3
4.2.2 Integrated approach . 3
4.2.3 Dissipative approach . 3
4.3 Strategies to implement isostatic and dissipative design criteria . 4
4.3.1 Sliding-frame (SF) . 4
4.3.2 Double-hinged pendulum (DHP) . 4
4.3.3 Rocking panel (RP) . 4
4.4 Parameters . 5
4.5 Classification . 5
5 Isostatic systems .5
5.1 General . 5
5.2 Analysis of the building . 5
5.2.1 General. 5
5.2.2 Suggestions for the structural model . 5
5.2.3 Rocking systems . 6
5.3 Analysis of conventional systems . 8
5.3.1 General aspects . 8
5.3.2 General design methodology . 8
5.3.3 Application procedure . 9
5.4 Design of isostatic system connections .12
5.4.1 General.12
5.4.2 Structural arrangements .12
5.4.3 Sliding devices.15
5.4.4 Hinge connections .16
5.4.5 Supports with steel brackets .17
6 Design of conventional connections .18
6.1 General .18
6.2 Structural arrangements .18
6.2.1 Vertical structural arrangements .18
6.2.2 Horizontal structural arrangements .19
6.3 Conventional fastening systems .20
6.3.1 General.20
6.3.2 Hammerhead strap connection .20
6.3.3 Cantilever box connection .27
6.3.4 Steel angle connections .31
6.4 Conventional strengthening and fastening systems .34
6.4.1 Second line back up devices .34
6.4.2 Strengthening folded steel plates .36
6.4.3 Strengthening with steel cushions .37
7 Integrated systems .38
7.1 General .38
7.2 Analysis of the buildings .38
7.2.1 General.38
7.2.2 Behaviour factor .39
7.2.3 Design aspects .39
7.2.4 Structural modelling .39
7.2.5 Cladding panels detailing .44
7.3 Design of integrated systems connections .45
7.3.1 General.45
7.3.2 Structural arrangements .45
7.3.3 Base supports .47
7.3.4 Connections with protruding bars .47
7.3.5 Connections with wall shoes .50
7.3.6 Connections with bolted plates .54
7.3.7 Shear keys .58
8 Dissipative systems .59
8.1 General .59
8.2 Analysis of the building .60
8.2.1 General.60
8.2.2 Structures with friction devices.62
8.2.3 Structures with steel cushions .63
8.3 Design of dissipative systems connections .64
8.3.1 General.64
8.3.2 Structural arrangements .65
8.3.3 Friction devices .66
8.3.4 Multi-slit devices .70
8.3.5 Steel cushions .73
8.3.6 Folded steel plates .
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