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Crane Runway Systems: Girder Fabrication and Rail Alignment

Crane runway systems support travelling overhead cranes and transfer wheel loads to the building supports. ASAECO provides runway girder fabrication, installation and rail alignment based on the crane data and the structural drawings. Rated lifting capacity alone is insufficient for defining the runway: wheel loads, wheel spacing, girder spans and operating conditions must also be reviewed.

Coordinating the crane supplier and building designer helps define a practical scope before fabrication begins.

Service scope

Review crane wheel loads and runway spans
Detail girders, stiffeners and supporting connections
Fabricate and inspect runway components
Install girders and check bearing locations
Align rails and document geometric checks

Features and benefits

Runway geometry coordinated with the crane

Controlled rail level and alignment

Fabrication to project loading requirements

Practical inspection and maintenance access

Coordinated delivery and installation

Fabricated girders for crane runway systems

Design inputs for crane runway systems

The crane supplier’s data should be reviewed alongside the building drawings. Maximum wheel loads, wheel spacing, horizontal actions, operating duty and the distances between columns influence the runway design. Multiple cranes sharing a runway and any planned future equipment must be identified. For an existing building, the columns, brackets and connections require a capacity review before additional loads are introduced.

Establishing the design responsibilities early avoids a gap between the crane package and the supporting building structure.

Girder fabrication and quality control

Approved drawings define the member geometry, stiffeners, connections and support details. During manufacture, inspections address dimensions, alignment and welding requirements. The extent of weld testing and the required quality records should be agreed in the technical specification. Runway components benefit from clear identification so deliveries can follow the erection sequence. Connection access and the practical method of positioning the members should be considered before production.

These preparations help reduce avoidable site adjustments and clarify the checks needed before the girders are released for delivery.

Installation and rail alignment

Before erecting crane runway systems, the team checks the supporting levels and bearing positions. Rail elevation, straightness and gauge must be controlled against the project tolerances. Rail clips, joints, end details and stops need coordination with the crane arrangement. Poor travel behaviour may involve the runway as well as the crane itself, so checking only the moving equipment is insufficient. Survey records and any corrective work should be documented.

Final testing and handover are coordinated with the crane supplier within the agreed contract scope.

Runway fabrication and installation costs

Costs depend on girder weight, spans, section type, stiffeners, finish and total runway length. Rail supply, fixing components and access equipment should be identified separately when comparing quotations. Working within an operating factory may add restrictions on working hours, lifting positions and shutdown periods. A useful enquiry distinguishes steel fabrication, transport, erection and rail installation.

ASAECO reviews the drawings and site conditions to identify the required activities, exclusions and information still needed before preparing a project-specific estimate.

Frequently asked questions about crane runway systems

Is rated crane capacity enough for a quote?

No. Include wheel loads, wheel spacing, runway length, support spans and building drawings. The crane supplier normally provides the equipment data required by the structural designer.

Can a runway be added to an existing hall?

Potentially, subject to checking the building capacity, supporting brackets, geometry and erection access. Existing columns and connections must be assessed for the proposed crane actions before a solution is accepted.

What is checked during rail installation?

Typical checks include rail level, alignment, gauge and fixing condition. Acceptance tolerances and required survey records should be specified for the particular crane and project.

Request a crane runway systems project review

Send the available drawings and specifications with the project location and required programme. The initial review identifies dimensions, quantities or tonnage, the design status and the services required. Where information is preliminary, the estimate should state its assumptions and identify the additional documents needed for a firm proposal.

The quotation for crane runway systems should identify supplied items, site activities and the responsibilities for transport, installation and quality control. Confirm the current drawing revision and any order changes before fabrication starts. This helps align the production schedule with the actual project requirements and gives both parties a clear reference for reviewing the completed scope.

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