APPENDIX 13.5 STRUCTURAL APPRAISAL
APPENDIX 13.5 STRUCTURAL APPRAISAL
APPENDIX 13.5 STRUCTURAL APPRAISAL
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6 Dismantling Sequence Of Works<br />
The following is a suggested sequence of how to dismantle the hangar. The contractor<br />
should provide a method statement for his preferred sequence of works.<br />
1. Service strip of all internal and external mechanical and electrical services<br />
and main hangar doors.<br />
2. Removal of all roof and ceiling cladding (excluding purlins).<br />
3. Demolition of all masonry, including internal and end walls<br />
4. Removal of main frames, bracing and purlins down to approximately 3m<br />
high. The frames are to be dismantled in sections from the top down, while<br />
supporting the lower sections of the frame with temporary works. The<br />
frames should be removed from the rear of the building first as these have<br />
the most corrosion and are therefore the weakest frames. The temporary<br />
stability of the building should be maintained with temporary works to allow<br />
the bracing and purlins to be removed.<br />
5. Removal of screed finishes encasing steel frame to sides of hangar to allow<br />
frames to be removed.<br />
6. Removal of the final part of the steel frame (excluding angles which are cast<br />
into the foundations).<br />
7. Angles protruding from the slab to be cut off and ground down to slab level.<br />
24540241 Chertsey Building 10 6
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