Steel sheet piles are a type of steel with locks. Their cross-sections include straight plate, groove and Z-shaped, and various sizes and interlocking forms. Common ones include Larson type and Lackawanna type. According to the shape category, they can be divided into U-shaped steel sheet piles and Z-shaped steel sheet piles. Different shapes also have different characteristics. The locks of
U-shaped steel sheet columns are symmetrically distributed on both sides of the neutral axis, and the web is continuous, which greatly improves the section modulus and bending stiffness, ensuring that the mechanical properties of the section can be fully exerted. Z-shaped steel sheet piles, building materials, the locks of Z-shaped steel sheet piles are symmetrically distributed on both sides of the neutral axis, and the continuity of the web greatly improves the section modulus of the steel sheet piles, thereby ensuring that the mechanical properties of the section are fully exerted.
Structural characteristics of Z-shaped steel sheet piles
Although the cross-section of Z-shaped steel sheet piles is asymmetrical, in actual construction, they are usually spliced together in pairs for hammering. Although its manufacturing process is relatively complex and its application in engineering is relatively rare, its superior section modulus and mass ratio, and high moment of inertia make the stiffness of the sheet pile wall enhanced and the displacement deformation reduced. In addition, its width design is also quite ingenious, which not only effectively saves the time of hoisting and piling, but also improves the water-stopping performance. The width of Z-type steel sheet piles is usually maintained at around 400-500mm, while the height has a variety of options, ranging from 170mm to 270mm, providing flexible solutions for various engineering needs.
Application of Z-type steel sheet piles
Z-type steel sheet piles are widely used in large-scale projects, especially in those environments with extremely strict requirements on structural integrity and lateral force resistance. Its unique shape and superior mechanical properties make it an ideal choice for bearing heavy loads and resisting lateral forces. Z-type steel sheet piles are widely used in automobiles, railway vehicles, shelves, electrical cabinets, highway guardrails, building steel structures, containers, transmission towers, steel sheet piles, cable trays, agricultural machinery, furniture, vegetable greenhouses, pipeline supports and other fields.
Advantages of Z-type steel sheet piles:
1. Flexible design, with relatively high section modulus and mass ratio;
2. Higher moment of inertia, thereby increasing the stiffness of the sheet pile wall and reducing displacement deformation;
3. Large width, effectively saving the time of hoisting and piling;
4. The increased section width reduces the number of shrinkages in the sheet pile wall, directly improving its water-stopping performance;
6. Thickening treatment is carried out in the severely corroded parts, and the corrosion resistance is more excellent.
Specifications of Z-shaped Steel Sheet Pile
|
Product Name
|
Z section types cold rolled steel sheet pile in different specifications/dimensions
|
|
Steel Grade
|
S275,S355,S390,S430,SY295,SY390,Grade50,Grade55,Grade60,A690
|
|
Length
|
Up to over 100m
|
|
Dimensions
|
Any width x height x thickness
|
|
Standard
|
EN10249,EN10248,JIS A 5523 and JIS A 5528,ASTM A328 / ASTM A328M
|
|
Corner sections
|
Cold formed interlock or clutches
|
|
Installation by
|
Excavator hydraulic or diesel vibration hammers
|
|
Suppliers kind
|
U,Z,L,S,Pan,Flat,hat profiles
|
Hot Rolled steel sheet pile
|
Section
|
width
(mm)
|
height
(mm)
|
Web
(mm)
|
Cross-Sectional Area
|
Weight
|
Section Modulus
|
Moment of Inertia
(cm4/m)
|
Coating Area
|
|
(cm2/m)
|
(cm2/m)
|
Pile
(kg/m)
|
Wall
(kg/m2)
|
Elastic
(cm3/m)
|
Plastic
(cm3/m)
|
Both Sides of Single
(m2/m)
|
Wall Surface
(m2/m2)
|
|
JZ17-700
|
700
|
419.5
|
8.5
|
93.3
|
133.2
|
73.2
|
104.6
|
1731
|
2031
|
36304
|
1.86
|
1.33
|
|
JZ18-700
|
700
|
420
|
9
|
97.7
|
139.5
|
76.7
|
109.5
|
1804
|
2120
|
37894
|
1.86
|
1.33
|
|
JZ19-700
|
700
|
420.5
|
9.5
|
102.1
|
145.9
|
80.1
|
114.5
|
1878
|
2213
|
39485
|
1.86
|
1.33
|
|
JZ20-700
|
700
|
421
|
10
|
106.5
|
152.2
|
83.6
|
119.4
|
1951
|
2302
|
41076
|
1.86
|
1.33
|
|
JZ24-700
|
700
|
439
|
11
|
121.2
|
173.1
|
95.1
|
135.9
|
2432
|
2818
|
53379
|
1.93
|
1.38
|
|
JZ26-700
|
700
|
440
|
12
|
130.6
|
186.6
|
102.5
|
146.5
|
2606
|
3030
|
57329
|
1.93
|
1.38
|
|
JZ28-700
|
700
|
441
|
13
|
140
|
200
|
109.9
|
157
|
2779
|
3240
|
61279
|
1.93
|
1.38
|
|
JZ36-700
|
700
|
499
|
11
|
150.5
|
215
|
118.1
|
168.8
|
3600
|
4111
|
89826
|
2.05
|
1.47
|
|
JZ38-700
|
700
|
500
|
12
|
160.4
|
229.2
|
125.9
|
179.9
|
3800
|
4357
|
95004
|
2.05
|
1.47
|
|
JZ40-700
|
700
|
501
|
13
|
170.3
|
243.3
|
133.7
|
191
|
3999
|
4604
|
100184
|
2.05
|
1.47
|
Types of Z-Shaped Steel Sheet Piles
There are mainly two types of Z-shaped sheet piles based on their manufacturing method:
1. Hot-Rolled Z-Shaped Steel Sheet Piles
Manufactured using high-temperature rolling mills
Stronger interlocks and higher structural integrity
Common in heavy-duty construction projects (e.g., ports, harbors, flood barriers)
Available in a variety of sizes and thicknesses
2. Cold-Formed Z-Shaped Steel Sheet Piles
Made by bending steel plates at room temperature
More cost-effective than hot-rolled versions
Smoother interlocks, which may require sealing for water-tight applications
Suitable for temporary structures, riverbanks, and retaining walls
Conclusion
Z-shaped steel sheet piles are an essential component in modern construction, providing high strength, superior interlocking, and excellent load resistance. Their versatility makes them ideal for marine structures, retaining walls, flood barriers, and underground foundations.
By selecting the right type, size, and coating, engineers and contractors can maximize cost efficiency while ensuring long-term durability. Whether you’re working on port construction, excavation support, or coastal protection, Z-shaped sheet piles offer a proven solution for safe and reliable construction.
For more insights and expert recommendations on Z-shaped steel sheet piles, consult with
leading steel suppliers and engineering firms to find the best fit for your project.
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