BS EN 17490:2021
$102.76
Determination of screw pull out forces from screw thread channels
Published By | Publication Date | Number of Pages |
BSI | 2021 | 16 |
This document provides a test method for determining the bearing capacity (pull out force) of a connection consisting of a screw in a screw thread channel, which cannot be calculated in accordance with current codes or conventional calculations. This document can be applied to screw thread channels used in several products, including doors, windows and curtain walling.
This document is applicable to screw thread channels made out of metal, as well as metal screws.
The pull out forces of such connections can already be assessed indirectly with another test method e.g. wind load resistance for doors/windows according to EN 12211 or curtain walling kits according to EN 12179. Additional information with respect to the mechanical performance of connections and direct applications can be determined with the test method described in this document.
The bearing capacity of non-metallic components under the combination of high temperature and load is not considered in the standard. Additional verifications are performed depending on the type of the non-metallic material used.
PDF Catalog
PDF Pages | PDF Title |
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2 | undefined |
7 | 1 Scope 2 Normative references 3 Terms and definitions |
8 | 4 Symbols and abbreviations |
9 | 5 Definition of principle 6 Requirements 6.1 Actuator 6.2 Force measuring instruments 7 Test specimens 7.1 Screw thread channel 7.2 Screw |
10 | 8 Procedure 8.1 Preparation for test 8.2 Loading and force measurement |
11 | 8.3 Number of test pieces 8.4 Evaluation in case of a pressure plate and connection |
12 | 9 Details on application 9.1 Geometry of the profile |
13 | 9.2 Changing materials in the connection 9.3 Changing the shape of the screw thread channel 9.4 Changing the screw 10 Test report |
14 | Annex A (informative)Determination of the design loading of a connection – Ultimate Limit State |