AS 500^® straight web steel sheet piles

AS 500^® straight web steel sheet piles are designed to form cylindrical structures, retaining a soil backfill and/or water.

AS 500 circular cells layout

The stability of constructions built up like that, a steel envelope and an internal soil mass, is guaranteed by their own weight.

Straight web sheet piles are mostly used on projects where rock layers are quite shallow (close to excavation level), where the excavation depth is very high, or where anchoring would be difficult or even impossible, or in seismic regions.

Main applications are

very deep cofferdams / dry-docks (temporary or permanent),
deep-sea quay walls,
breakwaters (maritime).

Straight web sheet pile structures are executed as circular cells or diaphragm walls depending on the site characteristics or the particular requirements of the project.

The forces developing in these sheet pile sections are essentially horizontal tensile forces requiring an interlock resistance corresponding to the horizontal force in the web of the pile. AS 500 interlocks comply with EN 10248, with interlock resistances R_k,s up to 6 000 kN/m. Note that both the resistance of the interlock and of the web need to be guaranteed. The safety factors applied to the web resistance and to the interlock resistance can be different.

All AS 500 straight web sections interlock with each other.

See below links to two additional pages with more details on installation and cell geometries.

Characteristic interlock resistance R_k,s (guaranteed) ^a)
^a) contact us for the related steel grade and further information
Section	R_k,s [kN/m]	R_k,s [kips/ft]
AS 500 - 9.5	3 500
AS 500 - 11.0	4 000
AS 500 - 12.0	5 000
AS 500 - 12.5	5 500
AS 500 - 12.7	5 500
AS 500 - 13.0	6 000

Please refer to our brochure “AS 500^® Straight web steel sheet pile – design & execution manual” for further details.

Note: AS 500^® is a registered trademark of ArcelorMittal

Last modified: March 21, 2020

Metric units

Imperial units

AS 500

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Section	b	t	δ	P	A	G_sp	G_w	I_y	W_el	A_L
	b	t	δ	(single pile)			G_w	(single pile)
	mm	mm	°	cm	cm²	kg/m	kg/m²	cm⁴	cm³	m²/m

AS 500 – 9.5	500	9.5	4.5	138	81.3	63.8	128	168	46	0.58
AS 500 – 11.0	500	11.0	4.5	139	89.4	70.2	140	186	49	0.58
AS 500 – 12.0	500	12.0	4.5	139	94.6	74.3	149	196	51	0.58
AS 500 – 12.5	500	12.5	4.5	139	97.2	76.3	153	201	51	0.58
AS 500 – 12.7	500	12.7	4.5	139	98.2	77.1	154	204	51	0.58
AS 500 – 13.0⁴⁾	500	13.0	4.5	140	100.6	79.0	158	213	54	0.58

b	Width (nominal). The effective width for design purposes (layout) is 503 mm
t	Thickness
δ	Deviation angle. Max. of 4.0° for pile length > 20 m
P	Perimeter
A	Cross sectional steel area
G_sp	Mass
G_w	Mass per m² of wall
I_y	Moment of inertia
W_el	Elastic section modulus
A_L	Coating area. One side, excluding inside of interlocks
⁴⁾	Please contact us for further information

AS 500 Installation

Installation of AS 500 straight web sheet piles requires a specific procedure and templates.

AS 500 Cell geometries

The optimized geometry of circular cells is quite complex to determine. Below are basic...

	AZ^® sections

	U-type sections

	AS 500^®

	HZ^®-M system

	Combined walls

	Box piles

	Jagged walls

	HP Piles

	Steel tubes

	Anchors / struts

	Cold Formed

	Old sheet pile sections


Section	b	t	δ	P	A	G_sp	G_w	I_y	W_el	A_L
	b	t	δ	(single pile)			G_w	(single pile)
	in	in	°	in	in²	lb/ft	lb/ft²	in⁴	in³	ft²/ft

AS 500 – 9.5	19.69	0.375	4.5	54.33	12.6	42.87	26.22	4.04	2.81	1.90
AS 500 – 11.0	19.69	0.433	4.5	54.72	13.9	47.17	28.67	4.47	2.99	1.90
AS 500 – 12.0	19.69	0.472	4.5	54.72	14.7	49.93	30.52	4.71	3.11	1.90
AS 500 – 12.5	19.69	0.492	4.5	54.72	15.1	51.27	31.34	4.83	3.11	1.90
AS 500 – 12.7	19.69	0.500	4.5	54.72	15.2	51.81	31.54	4.90	3.11	1.90
AS 500 – 13.0⁴⁾	19.69	0.512	4.5	55.12	15.6	53.09	32.36	5.12	3.30	1.90

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AS 500® straight web steel sheet piles

AS 500 –

AS 500 Installation

AS 500 Cell geometries

AS 500^® straight web steel sheet piles

AS 500

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