De informatie op deze pagina is bedoeld om de convergentie van het sectieontwerp van AS . te demonstreren 2159 & 3600 provisions for pile foundations that can be achieved with SkyCiv. Alle voorbeelden komen uit de volgende boeken::

Boek 1: Ruwan Rajapakse, Pile Design and Construction Rules of Thumb, 2016.

Boek 2: Lonnie Pack, Australian Guidebook for Structural Engineers, 2018.

Discrepancies between the manual calculation and SkyCiv results are expected due to the recent changes in AS 3600. Lonnie Packs follows the previous version of the standard (NET ZO 3600-2009), as SkyCiv implements the most recent release (NET ZO 3600-2018).

Vertical Geotechnical Capacity

Voorbeeld 7.4.1 (Boek 1): Compute the ultimate bearing capacity of the pile:

Details
Sectie
Diameter	500 mm
Lengte	10 m
Soil Properties
Gewichtseenheid	17.3 kN / m3
Wrijvingshoek	30 Graden
Samenhang	0 KPa
Grondwatertabel	Niet aanwezig

 

Resultaten
Parameter	Handleiding	SkyCiv
Vertical Effective Pressure	173 kPa	173 kPa
Base Resistance term	713.3 kN	713.338 kN
Average Effective Vertical Stress	86.5 kPa	86.500 kPa
Shaft Frictional Resistance Term	703.5 kN	703.510 kN
Ultimate Bearing Capacity	1,416.8 kN	1,416.848 kN

 

Voorbeeld 7.4.2 (Boek 1): Compute the ultimate bearing capacity of the pile:

Details
Sectie
Diameter	500 mm
Lengte	10 m
Soil Properties
Gewichtseenheid	17.3 kN / m3
Wrijvingshoek	30 Graden
Samenhang	0 KPa
Grondwatertabel	3 m

 

Resultaten
Parameter	Handleiding	SkyCiv
Vertical Effective Pressure	104.33 kPa	104.330 kPa
Base Resistance term	430.19 kN	430.188 kN
Average Effective Vertical Stress
0-3m	25.95 kPa	25.950 kPa
3-10m	78.12 kPa	78.115 kPa
Shaft Frictional Resistance Term
0-3m	63.32 kN	63.316 kN
3-10m	444.72 kN	444.720 kN
Total Shaft Frictional Resistance Term	508.04 kN	508.036 kN
Ultimate Bearing Capacity	938.22 kN	938.224 kN

 

Voorbeeld 7.4.3 (Boek 1): Compute the ultimate bearing capacity of the pile:

Details
Sectie
Diameter	500 mm
Lengte	12 m
Laag 1-bodemeigenschappen
Dikte	5 m
Gewichtseenheid	17.3 kN / m3
Wrijvingshoek	30 Graden
Samenhang	0 KPa
Grondwatertabel	Niet aanwezig
Laag 2-bodemeigenschappen
Dikte	7 m
Gewichtseenheid	16.9 kN / m3
Wrijvingshoek	32 Graden
Samenhang	0 KPa
Grondwatertabel	Niet aanwezig

 

Resultaten
Parameter	Handleiding	SkyCiv
Vertical Effective Pressure	204.8 kPa	204.800 kPa
Base Resistance term	1,166.2 kN	1,166.159 kN
Average Effective Vertical Stress
Laag 1	43.3 kPa	43.250 kPa
Laag 2	145.7 kPa	145.650 kPa
Shaft Frictional Resistance Term
Laag 1	176.1 kN	175.878 kN
Laag 2	891.6 kN	891.295 kN
Ultimate Bearing Capacity	2,233.9 kN	2,233.332 kN

 

Voorbeeld 7.4.4 (Boek 1): Compute the ultimate bearing capacity of the pile:

Details
Sectie
Diameter	500 mm
Lengte	15 m
Laag 1-bodemeigenschappen
Dikte	5 m
Gewichtseenheid	17.3 kN / m3
Wrijvingshoek	30 Graden
Samenhang	0 KPa
Grondwatertabel	3 m
Laag 2-bodemeigenschappen
Dikte	7 m
Gewichtseenheid	16.9 kN / m3
Wrijvingshoek	32 Graden
Samenhang	0 KPa

 

Resultaten
Parameter	Handleiding	SkyCiv
Vertical Effective Pressure	137.9 kPa	137.780 kPa
Base Resistance term	785.2 kN	784.538 kN
Average Effective Vertical Stress
0-3m	26 kPa	25.950 kPa
3-5m	59.4 kPa	59.390 kPa
5-15m	102.4 kPa	102.330 kPa
Shaft Frictional Resistance Term
0-3m	63.4 kN	63.316 kN
3-5m	96.6 kN	96.605 kN
5-15m	895.2 kN	894.573 kN
Ultimate Bearing Capacity	1,840.4 kN	1,839.032 kN

 

Axiaal & Flexural Capacities

Voorbeeld 4.6 (Boek 2): Determine the compressive and bending capacity of the following section:

Details
Sectie
Diepte	600 mm
Breedte	400 mm
de opwaartse bodemdruk veroorzaakt bidirectionele buiging met trekspanningen aan het bodemoppervlak
Top Bars	4-N20 Bars
Middle Bars	2-N20 Bars
Bottom Bars	4-N20 Bars
Shear Bars	R10-200
Materialen
Concrete Strength	40 MPa
Rebar Strength	500 MPa

 

Resultaten
Parameter	Handleiding (NET ZO 3600 2009)	SkyCiv (NET ZO 3600 2018)
Plastic Centroid (dq)	300 mm	300 mm
een 1	0.85	0.85
een 2	0.85	0.790
c	0.77	0.870
Squash Load Point (ΦNuo)	5,774 kN	5,774.389 kN
Compression Block Area (EENc)	89,040 mm2	99,597.600 mm2
Concrete Compressive Force (Fcc)	3,027 kN	3,147.284 kN
Top Bar Strain (es(top))	0.0023	0.00227
Middle Bar Strain (es(mid))	-0.0001	-0.00014
Bottom Bar Strain (es(bot))	-0.0025	-0.00256
Ultimate Axial Capacity (Nu)	2,913.5 kN	3,030.648 kN
Design Axial Capacity (Nu)	1,748 kN	1,818.389 kN
Ultimate Bending Capacity (Mu)	837.4 kN-m	818.739 kN-m
Design Bending Capacity (Mu)	502 kN-m	491.243 kN-m

 

Laterally Loaded Piles

Voorbeeld 5.2 (Boek 2): Calculate the horizontal geotechnical capacity of free-headed pile found on a stiff-over consolidated clay with the following pile and soil parameters:

Details
Pile Data
Pile Length	3.5 meter
Pile Diameter	0.6 meter
Soil Properties
Gewichtseenheid	16 kN / m3
Wrijvingshoek	45 Graden
Samenhang	2 KPa
Geotechnical Reduction Factor	0.45
Materiaal
Concrete Strength	40 MPa
Concrete Modulus	32,800 MPa
Concrete Placement Factor	1

 

Resultaten
Parameter	Handleiding	SkyCiv
Stiffness Factor (R)	1,845 mm	1,845.203 mm
Critical Length	3,690 mm	3,690.405 mm
Equivalent Eccentricity	725 mm	725 mm
Passive Soil Pressure (At depth: 3.5m)	843.9 kPa	843.943 kPa
Passive Force (At depth: 3.5m)	354.4 kN	354.456 kN
Moment about V*toegepast (At depth: 3.5m)	1,373.5 kN-m	1,373.517 kN-m
Moment about the Rotation Point (At depth: 3.5m)	124.1 kN-m	124.060 kN-m
Unfactored Horizontal Capacity	184 kN-m	184.077 kN
Factored Horizontal Capacity	82.8 kN-m	82.835 kN