01.2 - Engineering Design (issue 2) · OPW18/0008

 

 

 

 

 

 

 

 

 

    

 

 

 

 

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500 max NOTES
1. Design
50_cover 3/S12 bars a) The limits of this pool design are:—
— the maximum size shall not exceed 12m in length, and 6m in width UNO. The maximum water surface area is 100sq metres.
7 — the pool is to be founded into competent natural material having a minimum safe bearing capacity of 100kPa.
a facet a — b) The pool has been designed in accordance with AS2783 - 1992, "Use of Reinforced Concrete for Small Swimming Pools”, AS3735 — 1991, "Concrete
x 4 — Structures for Retaining Liquids”, and AS3600, "Concrete Structures”.
e ° x
2g . 2 2. Foundations
+ ° o a) Remove topsoil and all organic material from the pool area, in order to expose competent natural material.
3 b) The pool base must be prepared with a min 50mm layer of 20mm gravel, in order to relieve any build up of water pressure under the bose.
c) Where the pool is supported on soft/loose ground, or uncontrolled fill, contact this office for specific engineering design.
d) Where the process of excavation has created an irregular base surface, or substantial cavities in the base material, the surface is to be made good
€ Competent Natural by the placement of compacted working base material.
Material I
2 <
8 3. Materials
a) Concrete shall have a minimum compressive strength of 25MPa, with on effective cement content of not less than 280kg per cubic metre. Fly ash
shall comply with AS 3582.1. Slag shall comply with AS3582.2. Admixtures shall comply with AS1478. Reinforcement shall comply with AS1302,

 

 

Pool to found in competent natural material
with minimum safe allowable bearing capacity
of 100kPa.

Intermediate bars as per}
reinforcing schedule

  
  
   

Vertical bars as per
reinforcing schedule

Horizontal bars as per
reinforcing schedule

 
   
   

Coving varies from 300mm minimum at shallow
end to 600mm minimum at deep end

 

 

Typical

 

 

 

 

 

 

 

 

200,

Typical

“ Vertical bars as per
reinforcing schedule

 
  
 

reinforcing schedule

 

S12 bars at 400mm crs—*
(cog and lap 450)

 

 

—Extend intermediates past wall
corner a minimum of 1000mm

TYPICAL SEAT
SECTION (4)

Scale 1:20

 

1— Horizontal bars as per

   
 

 

200
Typical

 

 

   

THERES

 

 

Competent Natural
Material

 

2/S12 bars

 

300 min

 

 

 

300

 

 

 

Pool to found in competent natural material
with minimum safe allowable bearing capacity
of 100kPa.

EDGE BEAM OR FOOTING

I=

OTES:

1, Do not scale drawings.

2. Check and verify all dimensions
prior to commencement of work.

 

(where required)

AS1303 and/or AS1304.
b) Concrete shall be moist cured for a minimum of 7 days. Do not use curing admixtures to speed curing periods.
c) The minimum concrete thickness’ shown do not include the applied finish.
d) Concrete placement is to be a single, continuous operation using pneumatic placement procedures, with competent equipment and building practice.

4. Reinforcement

}) All S bars (structural deformed with grade 250S), and N bors (structural deformed with grade 500N), shall be in accordance with AS1302.

) Minimum laps of N12 bars to be 500mm, and are to be staggered where possible.

c) All reinforcement is to be securely held in place until the concrete is placed. Tie wires must be turned towards the centre of sections, and/or cut
short to ensure required cover is not reduced.

d) Minimum clear distance between parallel bars in a layer shall be 50mm, or 4 times the bar diameter, whichever is greater.

) Where two mats are required the clear distance between parallel bars in the mats shall be a minimum 40mm.

f) The reinforcement cage is to be electrically bonded and earthed.

}) The minimum horizontal reinforcement is S12 at 200mm crs below ground, and S12 at 100mm crs above ground.

) All steel spacings noted on the attached plans are based on a design section thickness of 155mm. Spacings are to be reduced for shrinkage and
temperature effects, where the gross cross sectional thickness increases.

1) The reinforcement is to be clean and free of loose rust, mud or grease when concrete is placed.

5. Formwork
a) For pneumatically applied concrete shall be as follows: —
i) vertical formwork to walls formed one side only and horizontal formwork up to 900mm wide shall be sufficient to resist loads due to the
application of the pneumatically applied concrete but need not comply with AS3610.
ii) horizontal formwork in excess of 900mm wide shall comply with AS3610.
iii) formwork for beams, columns and slabs shall comply with AS3610.

6. Durability and concrete protection

a) For sites less than 1km from salt water, the minimum concrete strength is to be 32MPa, with the cover to reinforcement increased
by 10mm both internally and externally.

b) For all other sites with non-aggressive soils, and not subject to variable water table subject to tidal activity, the minimum cover is to be
50mm (inside pool), and 60mm (to ground surface).

c) All reinforcement is to be placed centrally to the wall and slab thickness, unless noted otherwise.

d) All reinforcement is to be accurately bent, and to follow the radius of all covings as shown.

e) Horizontal and vertical layers may be reversed from those shown, provided minimum covers are maintained.

7. Backfilling

a) The pool is not to be backfilled until 14 days after concrete placement.

b) Backfill the surrounding pool edges with a sandy or equivalent non-reactive material, and flood with water to compact. Do not use mechanical
vibration equipment near the pool edges.

8. Plumbing

a) A hydrostatic valve is to be placed as per the attached drawings. The drainage layer of gravel is to drain freely into this valve.
b) The embedment of pipes, conduits and fittings in concrete shall comply with section 14 of AS3600.

c) Circulation pipework is to be uPVC, not less than 40mm diameter, (class 9).

9. General

a) Regular checks of the operation of the hydrostatic valve must be carried out.

b) All runoff and surface water should be directed away from the pool area.

c) During flooding or excessive rises in the water table, the pool is to be kept filled to equalise pressure.

d) The codes used to prepare these designs were current at the time of producing these drawings. These details may require updating as time will
vary the relevancy of these codes.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Issue|Made By| Date DESCRIPTION PROPOSED NEW RESIDENCE at CONSULTING STRUCTURAL & CIVIL ENGINEERS]Scale: 1:20
=| 0 BDK 16/11/17 | Preliminary Issue — Not for Construction Office: Suite 8/137 Brisbane Road, Mooloolaba -
& 1 BDK | 04/12/17] Preliminary Issue — Not for Construction LOT 120 CNR SEAMOUNT QUAY & MERMAID QUAY, NOOSAVILLE DESIGN GROUP Postal: P.O. Box 7117 Job No.: 17-0417
g 2 BDK | 11/12/17] Preliminary Issue — Not for Construction BUILDER: RYAN DESIGNER HOMES Sippy Downs, QLD. 4556 Dw, No : S20
a Designed By : _ J. SWEET BEng (Civil) (hons) Drawn By: 8K [Date : 16/1/17 | co vwmowsarseunes musa Wes  losrenosp com. g “
Certified By : 8.R. CROMAR BEng (Civil) MIEAust CPEng RPEQ NER Date: 16/1/77 Je Email: _ [email protected] POOL DETAILS
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