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STEEL TOWER · SAUDI ARABIA

Steel Tower Design in Saudi Arabia

SBC-301 + AISC 360-22 + ASCE 7 tower design — with the 150 ft Dammam entertainment tower as a directly completed SCS project — dynamic wind analysis, seismic checks, and full SBA-ready documentation.

Steel Tower Design for Saudi Arabia

Steel towers are among the most technically demanding structural engineering projects — they concentrate large wind and seismic forces at their base, require dynamic analysis to confirm resonance is avoided, and must be designed to withstand decades of repeated wind cycling without fatigue failure at their connections. In Saudi Arabia, the growing entertainment sector under Vision 2030 — observation towers, amusement ride support towers, themed entertainment towers — is creating new demand for engineers with direct Saudi tower experience.

Sixteens Consultancy Services has delivered a built Saudi tower: the Dammam entertainment tower at 150 ft (approximately 46 m) tall, designed under SBC + AISC 360-22 + ASCE 7 in the Eastern Province. This is not a claimed competency — it is a standing structure in Saudi Arabia. The design process required Saudi wind speed determination, Eastern Province seismic zone classification, AISC 360-22 member checks for combined axial and bending loading in tower columns and diagonals, dynamic wind analysis, and connection design for high-cycle wind fatigue conditions.

Code Framework for Saudi Tower Design

Steel tower design in Saudi Arabia requires competency across several interlocked standards:

  • SBC-301 Chapter 26–31 (Wind) — Wind loads on towers require the determination of the basic wind speed from Saudi SBC wind maps (typically 45–55 m/s in most regions), terrain exposure category, the gust factor Gf for flexible structures (where the natural frequency is below 1 Hz), and force coefficients for open lattice versus solid-faced tower geometries. Lattice towers have dramatically different drag coefficients than solid cylindrical towers — these must be taken from ASCE 7-22 Table 29.4-2 or equivalent wind tunnel data.
  • ASCE 7-22 Chapter 15 — Non-building structures seismic design. Towers and other non-building structures that carry significant weight (observation decks, equipment, counterweights) must satisfy seismic design provisions for non-building structures similar to buildings.
  • AISC 360-22 Chapter E and H — Compression members with biaxial bending. Tower columns under combined wind moment and gravity axial force require AISC 360-22 Chapter H interaction equation checks. For tapered tower sections or non-prismatic columns, effective length determination per AISC 360-22 Commentary Section C2 is required.
  • AISC 360-22 Appendix 3 — Fatigue. Tower structures subject to cyclic wind loading may require fatigue checks per AISC 360-22 Appendix 3, particularly at welded joints and anchor bolt connections that see high-cycle stress reversals throughout the structure's service life.

SCS Track Record — Dammam Entertainment Tower

The Dammam entertainment tower is our direct Saudi tower reference. Approximately 150 ft (46 m) tall, designed for an entertainment venue in Dammam's Eastern Province, the tower was designed under Saudi Building Code + AISC 360-22 + ASCE 7 wind provisions. The structural system comprised a steel moment-resisting frame core with tapered columns, diagonal bracing, and a large-diameter observation or amusement element at the tower top adding significant mass and eccentricity. STAAD.Pro was used for 3D dynamic analysis. Wind load distribution along the tower height was computed using ASCE 7-22 gust factor methodology. All AISC 360-22 member checks passed with controlled utilisation ratios. The tower is built and operational in Dammam.

How to Engage SCS for Steel Tower Design in Saudi Arabia

Email [email protected] with: tower location (city and site class), approximate height and tip payload (observation deck, equipment, ride mechanism), structural system concept (lattice, moment frame, guyed mast), applicable SBC edition, and Saudi Building Authority submission target date. Mubashir responds within one business day. WhatsApp at +974 6004 4913. Deliverables: SBC + AISC 360-22 calculation package including dynamic analysis, STAAD.Pro model documentation, connection schedule with fatigue check documentation, AutoCAD drawings — formatted for SBA submission.

— FREQUENTLY ASKED QUESTIONS

Steel Tower Design in Saudi Arabia
— Common Questions

What governs the structural design of a 50 m tall steel tower in Saudi Arabia?

SBC-301 governs loading (wind from Saudi maps, seismic from Saudi Geological Survey data), AISC 360-22 governs member design under SBC-303, and ASCE 7-22 Chapter 26 provides the dynamic gust factor methodology for towers with natural frequency below 1 Hz. Dynamic wind analysis is required for structures over approximately 30 m where vortex shedding resonance must be evaluated.

What foundation system is typical for a Saudi Arabia steel entertainment tower?

Saudi tower foundations depend on local soil conditions. Spread footings on competent shallow rock or gravel work well in parts of the Eastern Province. Where deep sands are present, drilled shaft piles (caissons) transfer seismic overturning moments to competent bearing. SBC-304 + ACI 318-19 govern the concrete and geotechnical design. Anchor bolt embedment in the tower base plate is the critical connection between structure and foundation.

Does the Dammam entertainment tower design include dynamic wind analysis?

Yes. At 150 ft tall, dynamic analysis confirmed the Dammam tower operates outside the resonant vortex shedding range. Natural frequency was determined from the STAAD.Pro 3D model. ASCE 7-22 Chapter 26 gust factor methodology was applied for the wind force distribution along tower height, and across-wind vortex shedding was checked against the critical reduced velocity threshold.