Erection - Steel Structures.

Introduction

Planning for the erection of any structure should commence at the design phase.
The incorporation of buildability into the design phase may allow significant additional benefits. If a structure is to be erected quickly, to programme, and to the lowest possible cost, consideration must be given to the planning of the site works.

Work at a height and on site should be minimized, especially if this work could be carried out at the factory in ideal conditions. Where possible, frames and  components should be designed to be built in the factory or assembled at low level for subsequent incorporation into the works. This will save time and cost as the  work is not so weather dependent and expensive temporary works are not required.

Planners should:

• plan for repetition and standardization
• plan for simplicity of assembly
• plan for ease of erection – keep it simple
• agree information handover dates and design sign-off dates
• make allowance for trade interfaces
• allow realistic programmes for manufacture and erection
• recognize the complexity of the design process
• hold regular co-ordination meetings
• identify and fairly allocate risk
• consider long-term stable relations with teamwork.

Attention to site construction methods are now considered an essential part of any design. So too is observance of the Construction (Design and Management) (CDM) Regulations aimed at enforcing the safe construction and use of structures.

The designer of the structure should take into account site access, materials handling, the construction sequence, and any limitations these may impose on the construction project.

One of the key factors to improvement in construction is the specialist  trade contractors (STCs) as they carry out as much as 90% of the contract value.

Utilizing the expertise of specialist contractors at an early stage will maximize the speed of construction, reduce conflict, and give the opportunity of adding real value to the building.

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