Client Name: Mr S Sample

Client Name: Mr S Sample

Site Address:

Sample Address Sample Street

Proposed Works: Beam Calculation for Removal of External Wall

into Existing Extension

Prepared and Completed by: Simon Helm

19th December 2019

Project

Removal of External Wall

Project number

BRO191219 - Sample

Calcs for

Sample

Date

19th December 2019

Steel Beam Calculation

Existing External wall to Existing Single Storey Kitchen Extension

Beam details305 x 165 x 54 UB S275Beam effective span length: 5.1 metres

Width: 166.9 mmDepth: 310.4 mmWeb: 7.9 mmFlange: 13.7 mmRadius: 8.9 mmMass per metre: 54 kg/m

Project


Project number

BRO191219 - Sample

Calcs for

Sample

Date

19th December 2019

Safety factors, restraints & deflection limitsPermanent load safety factor: 1.35Variable load safety factor: 1.5

Beam is fully restrained along its length: NoLength between lateral restraints: 5.1 metres

Variable load deflection limit: Span/360 = 14.17 mmTotal load deflection limit: Span/200 = 25.5 mm

Load details

UDL 1: Timber floor (domestic dwelling)

Permanent (dead) load per square metre: 0.6 kN/m2

Variable (live) load per square metre: 1.5 kN/m2

Width of load perpendicular to beam, or height of load supported by beam: 6 metres

UDL 2: 225mm Brickwork + Plaster or render on BOTH sides


Variable (live) load per square metre: 0 kN/m2

Width of load perpendicular to beam, or height of load supported by beam: 2.6 metres

UDL 3: Ceiling beneath sloping roof




UDL 4: Sloping roof, 0° to 30°




Project


Project number

BRO191219 - Sample

Calcs for

Sample

Date

19th December 2019

CalculationsBending momentsMc,y = 233kNm > 146.04kNm, Therefore OKMc,y value from Tata Steel 'blue book' to BS EN 1993-1-1Mb = 151.1kNm > 146.04kNm, Therefore OKMb value INTERPOLATED from Tata Steel 'Blue Book' to BSEN 1993-1-1C1 value conservatively taken as 1.0

Shear forcesShear capacity Vc = 422kN x 0.5 = 211kN >114.54kN, Therefore OKShear Capacity, Vc from Tata Steel 'Blue Book' to BS EN1993 -1-1Reduction of moment resistance by high coincident shearforce has been avoided by checking that the shear force isno more than 50% of the shear resistance

DeflectionVariable load deflection = 4.12mm < 14.17mm,Therefore OKTotal load deflection = 11.47mm < 25.5mm,Therefore OK

Notes

Mc,y value from Tata Steel 'Blue Book' to BS EN 1993-1-1

Mb value interpolated from Tata Steel 'Blue Book' to BS EN 1993-1-1

C1 value conservatively taken as 1.0

Shear Capacity, Vc from Tata Steel 'Blue Book' to BS EN 1993-1-1

Reduction of moment resistance by high coincident shear force has been avoided by checking that the shear force is notmore than 50% of the shear resistance

Ends of beam are to be laterally restrained. Ends of beams can be laterally restrained using one of the following methods;

1) End of beam built into masonry wall.2) End of beam fixed to a masonry wall.3) End of beam fixed to a column or a beam.

The designer is to ensure that the proposed detail adequately ensures that the end of the beam is laterally restrained.

No allowance has been made for destabilising loads which are outside the scope of these calculations (Destabilising loadswould not normally occur in a traditional masonry structure)

Prepared and completed by: Simon Helm - Please note all measurements to be checked on site!

660

280

Padstone Position

Steel Beam x 2 305 x 165 x 54

Bolted @ 600mm ctrsusing M12 bolts

300

248

By

Date

Project

ClientLast Revised

Job No

Status: P Preliminary T Tender C Construction

Drg No

Sheet No

Rev

Status

www.broarchitecture.co.uk

19/12/2019 11:01:58

RemovalExternal Wall

Sample Calcs19th Dec 19

SH

1 : 10

Section 1 - Callout 1 - Sample Calcs1

1

Section Call Out - Detail

2600

2700

2100

Timber Floor

First Floor

Ground Floor

Existing Extension

Floor Void

Assumed Foundations

Timber Floor

Victorian Style HouseWall Thickness 225mm

No Cavity

By

Date

Project

ClientLast Revised

Job No


Drg No

Sheet No

Rev

Status


19/12/2019 11:01:58



SH

1 : 50

Section 11

4753

4600

248

1953

By

Date

Project

ClientLast Revised

Job No


Drg No

Sheet No

Rev

Status


19/12/2019 11:08:15



SH

1 : 50

Ground Floor Plan1

C 19th Dec 19

SHSH

Sample Calcs 1 1

Fitting Diagrams - RSJ Covers

RSJ

RSJ blocked and boarded

RSJ blocked and boarded with beam cover fixed

to wooden blocks

1.

2.

3.

Plasterboard

Timber Block

Product Code – BEAMLIFT

Product Description – 600 KG BEAM LIFTER

The Beam lifter (600KG) is a simpler and more robust device than all of its competitors. No

cables or guides just a simple screw mechanism which is similar to the acrow prop operation

can be wound up to required height. It is a compact detachable elevator on wheels for lifting

and fitting heavy loads such as steel beams.

Lifting capacity 600 kg. Maximum lifting height 3 m.

High precision by using screw thread adjustment.

Fully detachable and easy to build up.

Uses two elevators for fitting beams.

Rotational platform

Crane hook to lift loads from the ground.

1 year warranty

Client Name: Mr S Sample

Documents

Transcript of Client Name: Mr S Sample