Attachment B Eng report

2.0

Slab and beams are to be designed to achieve the following
maximum
deflection criteria

Incremental Deflection
General Span/500 or 15mm (whichever is less)

Long Term Deflection
Slabs Span/500 or 15mm (whichever is less)
Beams Span/500 or 15mm (whichever is less)
Spandrel Beams — Span/500 or 15mm (whichever is less)

Total allowable 20mm max to end spans
(Slab + Beam) 20mm to internal spans
Cantilever Span/250 or 10mm (whichever is less)

The structural framing system is to comprise a reinforced concrete frame
utilising permanent reinforced concrete slabs, beams and columns.
External decks and the garage floors are to be 40 MPa reinforced
concrete slabs and beams. All piled footings are to be founded into very
dense sands, stiff sandy clays or extremely weathered sandstone, at least
5m below any 27° sand slip line projected from the base of the slope, and
at least 7m below existing ground line, whichever is deeper. In some
localised areas, piled footings may need to be founded deeper than these
levels depending on excavation depth / sequence and pile loads.

Introduction

The following design criteria details the required structural performance
criteria for the proposed residence. It establishes the overall structural
performance requirements along with a series of minimum standards for
specific design and construction technical controls of the works.

Reference Documentation:

e Site Survey Drawings by Lawrence & Partners
e Noel Robinson Architectural Drawings dated 23.5.2014
81.269.B13 -
Sk 03.01 Rev. P1
Sk 03.02
Sk 03.03

Sk 05.01
Sk 05.02
Sk 05.03
Sk 05.04
Sk 05.05
Sk 05.06
Sk 05.07
Sk 05.08
Sk 05.09
Sk 05.10