Free-standing crane structures, built from the ground up
Veltrixair Industries designs, builds and erects free-standing crane structures across the Kingdom. These are independent steel frameworks that carry EOT, gantry, jib and process cranes — used where a building-mounted crane isn't possible, or where the structure needs to stand on its own. From the first civil survey to the first lift, one partner owns both the civil and mechanical work.
Four disciplines serving your project
A self-standing crane structure is really its own engineered building. Veltrixair Industries delivers all four disciplines it needs as one integrated scope, so the project never gets split across fragmented sub-contracts.
Foundation & Civil
Soil investigation, foundation design, concrete works, anchor bolt embedment.
Structural Verification
Verification of wind/seismic loads per ASCE 7, deflection per FEM 9.511.
Steel Fabrication & Coating
AWS D1.1 welding, ASTM A572/A992 sections, KSA-tuned coating systems.
Crane Integration
Runway alignment, electrification, OEM commissioning to FEM tolerance.
What is included in a self-standing structure delivery
We deliver self-standing structure projects as one scope covering civil, structural and mechanical work. Here's what's standard on every project, built to Saudi Building Code, AISC steel standards, and the crane manufacturer's requirements.
Foundation & civil
Reinforced concrete pad foundation, pile foundation if soil dictates, anchor bolt embedment design, baseplate sizing per AISC 360, and grout pocket detailing.
Steel fabrication & QA coordination
Workshop coordination, weld procedure approval per AWS D1.1, material certifications for ASTM A572 / A992 sections, and CWI inspection of all fabricated members before shipment.
Coating & corrosion protection
Surface preparation to Sa 2½, zinc-rich primer, intermediate coat and polyurethane top coat — tuned for KSA's coastal, desert and industrial atmospheres with 20+ year design life.
Foundation construction supervision
Excavation, rebar placement, concrete pour with witness, anchor bolt template installation, and 28-day strength verification before steel erection commences.
Steel erection & alignment
Column erection, baseplate grouting, runway beam alignment to FEM 9.511 tolerance, bolted and welded connections per design drawings, and plumb verification across all columns.
Bracing & secondary steelwork
X-bracing, knee braces or K-bracing per design, gusset plates, runway tie-backs, and access platforms / walkways for inspection and maintenance access.
Crane integration onto structure
EOT, gantry or jib crane installation onto the new framework, runway-to-crane interface verification, electrification routing, and integrated commissioning.
Combined load testing
Foundation settlement check under load, structural deflection measurement at 100% and 125% SWL, and crane operational testing per Phase 4 of standard installation methodology.
Documentation & as-built handover
As-built drawings, structural calculations dossier, weld inspection certificates, anchor bolt torque records, coating thickness reports, and OEM warranty registration.
Various configurations
to fit your site
Self-standing structures come in different shapes, depending on the space available, the lift needed, the environment, and whether it needs to be permanent or movable. We build every version below to Saudi Building Code and AISC 360 standards.
Portal Frame Gantry
Two-column self-standing gantry with overhead beam and integrated crane runway. The most common configuration for outdoor laydown yards and prefab plants.
- Span up to 35m
- Capacity to 100T
- Permanent foundation
A-Frame /
Trestle Structure
Triangulated structural form with inherent lateral stability — economical for medium spans and ideal where wind loads dominate the design envelope.
- Span 8 — 25m
- Capacity to 50T
- High lateral stiffness
Hybrid
Building-Integrated
Self-standing structure within an existing building — runway loads transferred to dedicated columns rather than the host structure. Used when the building shell is sound but unable to bear crane loads.
- Inside existing building
- Independent load path
- No host building rework
Civil engineered to Saudi Building Code. Steel to AISC
Self-standing structures are covered by civil, structural, mechanical and crane-industry regulations. Every project we deliver is engineered, built, erected and certified against the full set of standards below.
The integrated civil + mechanical partner for self-standing crane work
Most crane contractors stop where the runway ends. Most steel fabricators stop at the base of the column. Self-standing structures need both skill sets together — splitting the work across separate sub-contractors is exactly what causes settlement issues, alignment problems and warranty disputes.
Civil, structural and mechanical under one project director
Veltrixair Industries owns the full scope from soil report to first lift — geotechnical, structural design, steel fabrication coordination, civil works supervision, steel erection, and crane integration. One project director, one BoQ, one warranty.
STAAD.Pro and SAP2000 modelling capability
Structural design isn't outsourced. Our in-house engineering team produces the FEA model, runs the wind/seismic analysis, sizes the connections and stamps the calculations dossier — accountable for the design from day one.
SBC for the Kingdom, AISC for the steel
We design and certify against the Saudi Building Code for regulatory conformity AND against AISC 360 / ASCE 7 / AWS D1.1 for international steel-construction standard. Both frameworks documented in the calculations package.
Built-once or relocatable — your choice
For phased construction, temporary plants, or sites with future relocation needs, we design the structure with bolted modular connections from day one. The same crane-bearing structure can be dismantled, transported and re-erected at a new site.
Need to install a crane where there's no building?
Whether it's a 30-tonne frame for an outdoor yard in Yanbu, a movable structure for a phased NEOM site, or a hybrid structure inside an existing Riyadh facility — tell us the scope, and we'll be on site within five working days for a free assessment.