PT. CIPTAMEGA ARIEFSEJATI

Ringlock Scaffold

Structural Design and Calculation

Coal Storage, Indocement Project

Indonesia

March 2014

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Structural Design and Calculation

APPENDIX

3Design and Calculation of Second Bearer

4Design of Main Bearer...

APPENDIX

APPENDIX

APPENDIX

Ringlock Scaffold

-- Content --

1Check Bearing Load of Scaffolding

2Design and Calculation of Plywood

Design Scope1.Scaffolding TypeRinglock Scaffold

1-1PropertyVertical : Q345Fy=3600kg/cm2E=2100000kg/cm2

Horizontal : Q235Fy=2520kg/cm2E=2100000kg/cm2

Diagonal : Q235Fy=2520kg/cm2E=2100000kg/cm2

1-2DimensionVertical : 60.2mm T:3.2mmHorizontal : 48.2mm T:2.5mmDiagonal : 42.3mm T:2.5mm

1-3Minimum Failure Load74.77 ton (refer to Appendix )

2Formwork typePlywood2-1PropertyE= 70000kg/cm2Fb= 140kg/cm2Fv= 12kg/cm22-2DimensionL:1000mm T:18mm

3Second Bearer TypeTimber 3-1PropertyE= 70000kg/cm2Fb= 140kg/cm2Fv= 12kg/cm2

3-2Dimension120mm 80mm3-3Spacing 50cm under 0.6m slab

4Main BearerH-Beam 4-1PropertyE= 2100000kg/cm2Fb= 1512kg/cm2Fv= 12kg/cm2

4-2Dimension200mm 100mm

Ringlock ScaffoldStructural Design and Calculation

1Check Bearing Load of ScaffoldingDesign Assumption

1-1Take Section as following to consider :

To calculate maximum bearing load of a leg:DL = ton/m3 m3 = ton/m

LL1 = ton/m2 m2 = ton/mLL2 = ton/m2 m2 = ton/m

ton/m

Maximum bearing load of a leg = ton/m

Referring to test report of a tower -------------Appendix Use May 17,2013 material testing report sheet------ ton

Assume the Safety Factor is 2.5/ =/ =

Allowable bearing load of a leg = 7.48 tonCheck bearing load of scaffolding