Grand Housing Development Program Volume III - Gtz

FIRST FLOOR SLAB REPAIRRotten beams werediscovered whenexamining the firstfloor slab.Parts of the pumiceconcrete filling hadto be removed toget access to thedamaged beams.This had to bedone especially inareas, where theroof cladding wasdamaged or lost,allowing rainwaterto infiltrate.One of the rotten beams of the first floor slab.Supports for the damaged beams. The beams are cut andshafted.Rotten parts of beams were removed and the remains werecut clean.Joint of a shafted beam, made by cutting along the beam’saxis and fixing with screws.A substructure made out of a lathing with a mesh reinforcementis placed underneath the beams.- Support beams with posts. Securing and supportingthe beams is crucial for building stability and safety.- Take out concrete filling between beams.- Cut and shaft damaged wooden beams.- Place substructure and formwork.44Addis AbabaCity Government