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Foundations for Steel Structures: Types and Design Basics

StroyHubJanuary 20, 20267 min read
Foundations for Steel Structures: Types and Design Basics

Choosing the right foundation for steel structures depends on three inputs: soil, load, and seismic context. Lightweight steel frames reduce dead load, but uplift, anchoring precision, and regional climate still drive design decisions.

01

12-20K ₸/m²

foundation range

by foundation type

02

4 types

options

column, strip, pile, slab

03

9 points

Almaty seismicity

MSK-64 context

04

±5 mm

anchor tolerance

critical for frame fit-up

Why steel foundations differ

Steel-frame buildings are usually much lighter than equivalent reinforced-concrete structures, which can reduce zero-cycle cost. At the same time, foundation design must account for:

  • wind uplift and overturning checks,
  • accurate anchor bolt placement,
  • local frost depth and groundwater behavior.

Main foundation types

Column footing

Best for light buildings on stable soils; usually the most budget-friendly option.

Strip foundation

Common universal solution for medium loads and regular soil conditions.

Pile foundation

Used for weak/water-saturated soils or difficult geotechnical conditions.

Monolithic slab

Chosen for high floor loads, intensive forklift traffic, or dense racking.

Comparative table

TypeTypical useCost range
Column footingLight hangars, stable soils12,000-14,000 ₸/m²
Strip foundationMid-load warehouses14,000-18,000 ₸/m²
Pile foundationWeak or saturated soils15,000-20,000 ₸/m²
Monolithic slabHeavy floor loads16,000-20,000 ₸/m²

Geotechnical survey is mandatory

A geotechnical report is the baseline for safe and cost-efficient foundation selection. Skipping this stage often leads to expensive rework later.

Regional specifics in Kazakhstan

  • Astana and northern regions: deep frost depth, higher insulation and frost-heave considerations.
  • Almaty and southeast: seismic design checks are critical.
  • South and west regions: local soil chemistry and groundwater can influence durability and waterproofing strategy.

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Key takeaway

Ключевой вывод
For steel buildings, the “best” foundation is not a template choice — it is a site-specific decision based on soil profile, load case, and regional risk factors. Proper geotechnical input and structural checks save both budget and schedule.

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