Your partner in materials & technology ABUILDING TECHNOLOGY. Title : Report of Test on Hemsec Sips Lintels Supplied in 3 lengths

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1 Your partner in materials & technology ABUILDING TECHNOLOGY TEST REPORT CERAM Queens Road, Penkhull Stoke-on-Trent ST 7LQ England Tel: + (0) Fax: +(0) enquiries@ceram.com Title : Report of Test on Hemsec Sips Lintels Supplied in lengths Laboratory No. : BT07696TJB Client : Hemsec Sips Ltd Stoney Lane Rainhill Prescot Merseyside L5 9LL For Attention of : Mr Jim Nolan Your Reference : Sips Lintels Date of Issue : 1 st October 2007 Our Reference : H/shared/booth/BT07696TJB Authorised by : Joanne Booth Page 1 This report is issued in accordance CERAM is the trading name of CERAM Research Limited. And relates only to the sample(s) tested. No responsibility is taken for the accuracy of the sampling unless this is done under our own supervision. This report shall not be reproduced in part without the written approval of CERAM Research Limited, nor used in any way as to lead to misrepresentation of the results or their implications. Registered in England No Registered Office as above

2 1.0 INTRODUCTION CONTENTS Page 2.0 SAMPLE DESCRIPTION TEST PROGRAMME METHOD OF TEST.1 Flexural Resistance.2 Shear Resistance RESULTS 5.1 Flexural Resistance 5.2 Shear Resistance DISCUSSION 7.0 REFERENCES TABLES CHARTS PLATES 5 5 Page 2

3 DETEMINATION OF FLEXURAL AND SHEAR RESISTANCE OF A HEMSEC SIPS LINTEL TO EN86-9: INTRODUCTION A series of structural insulated lintels were supplied by the client for testing to EN86-9:2000: Determination of flexural resistance and shear resistance of lintels. 2.0 SAMPLE DESCRIPTION Three samples of each of three lengths of lintel were received 2600m, 2000mm and 100mm with a cross sectional area of 500mm tall x 125mm thick. The panels comprised of a sandwich construction of Grade 15mm OSB sheathing with a 95mm pressure injected foam polyurethane core. 100x9mm C16 timber inserts were glued to the OSB sheathing along the length of the lintel and the timber inserts were glued at the lintel ends spanning between the longitudinal inserts..0 TEST PROGRAMME Three samples of 2000mm and 100mm lengths of lintel were tested for flexural strength. Two samples of the 2600mm length of lintel were tested for flexural strength. One sample of the 2600mm lintel was tested for shear resistance..0 METHOD OF TEST.1 Flexural Resistance Each lintel was placed on a rigid steel bearer over a 100mm length on a fibreboard layer giving a clear span of lintel of lintel length -200mm. Load was applied via an appropriate number of hydraulic rams exerting a uniform distributed load (UDL) through pivoted plates. A general view of the test arrangement is shown in Plate 1. The load was applied continuously and was measured using a calibrated load cell, which read onto a calibrated data logger. A linear voltage displacement transducer was situated under the centre point of the lintel to monitor vertical deflection with applied load. Additionally, a linear voltage displacement transducer was located beneath the lintel at either end, close to each bearing, to enable the calculation of net vertical deflection with applied load..2 Shear Resistance Load was applied via a hydraulic ram through a 90mm long spreader plate, which was located 575mm from the edge of the support. The load was applied continuously and was measured using a calibrated load cell, which read onto a calibrated data logger. A linear voltage displacement transducer was situated under the centre point of the lintel to monitor vertical deflection with Page

4 applied load. Additionally, a linear voltage displacement transducer was located beneath the lintel at either end, close to each bearing, to enable the calculation of net vertical deflection with applied load 5.0 RESULTS 5.1 Flexural Resistance A summary of the maximum recorded loads and associated deflection are given in Table 1. Graphs of load versus deflection are given in Charts Shear Resistance The maximum recorded load for the 2600m lintel was 10kN which is a calculated shear resistance of 51.5kN at a maximum net central deflection of 2.97kN. A graph of load versus deflection is given in Chart DISCUSSION All lintels failed in the same way, by localised crushing of the timber at the bearer. This resulted in all lintels achieving a similar load capacity of around 95kN/m with the 2000mm lintel slightly lower. According to BSEN 85-2 the flexural load capacity needs to be declared and this is required to be the mean of three results. We have three results for the 2000mm and 100mm but only 2 for the 2600mm lintel so cannot do this for the 2600mm lintels. In accordance with BSEN 85-2 the manufacturer is required to declare a load at which the deflection does not exceed span/200. In each of the lintel spans the actual net central deflection is well below this value. This is due to the fact that the lintel did not bow under load but merely dropped along it s full length as the timber crushed at the supports. The lintel did not reach flexural failure. Strictly the Sips Lintel is beyond the scope of BSEN 85-2 however should it be considered as a masonry product a Safe Working Load (SWL) would be calculated using a global safety factor of 2.25 which would lead to a SWL of 79kN/m for the 2600mm lintel, 95kN/m for the 2000mm lintel and 95kN/m for the 100mm lintel. According to BS EN 86-9 the shear resistance test is carried out on a lintel by applying a point load at a distance of the depth of the lintel +75mm from the bearer. In this case because the depth of lintel was 500mm the only lintel spans able to be tested for shear resistance is spans above 2500mm hence only the 2600mm lintel. The failure mode was the same as for the flexural tests by localised crushing of the bearer and not by shear failure. Although the failure was not in shear the load was 10kN and represents a maximum Shear load of 51.5kN the standard requirement is that this load should exceed half of the flexural load resistance which it did. The declared values indicate that the lintel will be able to be used as a structural component. There are no values available for structural performance as this would depend on the particular build specification. Page

5 7.0 REFERENCES 1. British Standards Institution Methods of Test for Ancillary Components for Masonry Part 9 : Determination of flexural resistance and shear resistance of lintels BSEN 86-9 : British Standards Institution Specification for Ancillary Components for Masonry : Part 2 : Lintels BSEN 85-2 : 200. British Standards Institution Lintels Part 1 Method of Assessment of Load BS 5977 : Part 1 : 1981 Authorised Signatory: Joanne Booth Manager Structures Group: CBT Page 5

6 TABLES

7 Test Span (mm) Table 1 Summary of Flexural Resistance of Lintels Span/200 (mm) Maximum Flexural Resistance (kn/m) Maximum Central Net Deflection (mm) Mode of Failure Bearer failure Bearer failure Bearer failure Bearer failure Bearer failure Bearer failure Bearer failure Bearer failure Page 7

8 CHARTS

9 Chart 1 Load v Deflection for 2600mm lintel tested under compressive load (test 1) Deflection (mm) Test Report Number: BT07696TJB Load (kn) Key Tr.1 Tr.2 Tr. Test Report Laboratory Number: BT07696TJB Queens Road, Penkhull, Stoke-on-Trent, Staffs. ST 7LQ Tel. (01782) 7676 Fax. (01782) 7658

10 Chart 2 Load v Deflection for 2600mm lintel tested under compressive load (test 2) Deflection (mm) Test Report Number: BT07696TJB Load (kn) Key Tr.1 Tr.2 Tr. Test Report Laboratory Number: BT07696TJB Queens Road, Penkhull, Stoke-on-Trent, Staffs. ST 7LQ Tel. (01782) 7676 Fax. (01782) 7658

11 Chart Load v Deflection for 2000mm lintel tested under compressive load (test 1) Deflection (mm) 5 2 Test Report Number: BT07696TJB Load (kn) Key Tr.1 Tr.2 Tr. Test Report Laboratory Number: BT07696TJB Queens Road, Penkhull, Stoke-on-Trent, Staffs. ST 7LQ Tel. (01782) 7676 Fax. (01782) 7658

12 Chart Load v Deflection for 2000mm lintel tested under compressive load (test 2) Deflection (mm) 5 2 Test Report Number: BT07696TJB Load (kn) Key Tr.1 Tr. Tr.2 Test Report Laboratory Number: BT07696TJB Queens Road, Penkhull, Stoke-on-Trent, Staffs. ST 7LQ Tel. (01782) 7676 Fax. (01782) 7658

13 Chart 5 Load v Deflection for 2000mm lintel tested under compressive load (test ) Deflection (mm) Test Report Number: BT07696TJB Load (kn) Key Tr.1 Tr.2 Tr. Test Report Laboratory Number: BT07696TJB Queens Road, Penkhull, Stoke-on-Trent, Staffs. ST 7LQ Tel. (01782) 7676 Fax. (01782) 7658

14 Chart 6 Load v Deflection for 100mm lintel tested under compressive load (test 1) 7 6 Deflection (mm) 5 2 Test Report Number: BT07696TJB Load (kn) Key Tr.1 Tr.2 Tr. Test Report Laboratory Number: BT07696TJB Queens Road, Penkhull, Stoke-on-Trent, Staffs. ST 7LQ Tel. (01782) 7676 Fax. (01782) 7658

15 Chart 7 Load v Deflection for 100mm lintel tested under compressive load (test 2) 7 6 Deflection (mm) 5 2 Test Report Number: BT07696TJB Load (kn) Key Tr.1 Tr.2 Tr. Test Report Laboratory Number: BT07696TJB Queens Road, Penkhull, Stoke-on-Trent, Staffs. ST 7LQ Tel. (01782) 7676 Fax. (01782) 7658

16 Chart 8 Load v Deflection for 100mm lintel tested under compressive load (test ) 7 6 Deflection (mm) 5 2 Test Report Number: BT07696TJB Load (kn) Key Tr.1 Tr.2 Tr. Test Report Laboratory Number: BT07696TJB Queens Road, Penkhull, Stoke-on-Trent, Staffs. ST 7LQ Tel. (01782) 7676 Fax. (01782) 7658

17 Chart 9 Load v Deflection for 2600mm lintel tested under shear load Deflection (mm) 5 2 Test Report Number: BT07696TJB Load (kn) Key Tr.1 Tr.2 Tr. Test Report Laboratory Number: BT07696TJB Queens Road, Penkhull, Stoke-on-Trent, Staffs. ST 7LQ Tel. (01782) 7676 Fax. (01782) 7658

18 PLATES

19 Plate 1 General view of 2600mm lintel tested under flexural loading Plate 2 Failure of 2600m lintel at bearing

20 Plate General view of 2000m lintel under flexural test Plate Bearing failure of 100mm lintel under flexural test

21 Plate 5 Bearing failure under shear load note the bedding in of the loading plate on the top of the lintel