Load Bearing Capability | No More Props | Diversity Products
  • Search
  • Register
  • Newsletter
  • Follow Us

Register

FAQ FAQ’s

Information

Information content

Load Bearing Capability

Load Bearing Capability

An assessment of the loading carried by a lintel can be made by a triangle method, as given in BS 5977: Part 1 (European and British Standard specification for lintels). The 45 degree triangle, of base equal to the span of the lintel, represents the load the lintel must bear.

BS5977: Part 1 calculates that  a  lintel should  resist  a load of  1.46kN  (kiloNewtons) at a 1.8 metre span of exterior brickwork  with  a  serviceability  load  of  span/200. The largest, 2.7 metre wide  No More Props resisted a load of 20kN in test,  giving  a factor of safety in excess of  13 times  the BS Standard’s requirement.  See below for full load bearing details of all sizes.

Uniformly Distributed Load Test

Unit Size (mm)

Span (mm)

Maximum Load at Span Span/200 KN*

Load Required by BS 5977 (assuming brick & outer leaf) KN*

Maximum Load at Span Span/200 kg

Load Required by BS 5977 (assuming brick & outer leaf) kg

1900

1000

31.1

0.45

3141

45

2400

1500

24.2

1.02

2445

103

2700

1800

20.1

1.46

2028

147

* 10 kN is equal to 1 metric ton.

Ultimate Load Test

Failure Load (kN)

Failure Load (kg)

Central Deflection of Lintel at Failure Span/200 mm

Mode of Failure

73.43

7424

1.1

Diagonal cracking of the wall at the underside of the bearers and above the centre span of the lintel

 

You currently have JavaScript disabled. This site requires JavaScript to be enabled. Some functions of the site may not be usable or the site may not look correct until you enable JavaScript. You can enable JavaScript by following this tutorial. Once JavaScript is enabled, this message will be removed.

X