Influences on Overall Design Concept - Multi-Storey Buildings.

Client brief
Clients specify their requirements through a brief. It is essential for effective design to understand exactly the intentions of the client: the brief is the way in which the client expresses and communicates these intentions.As far as the frame designer is concerned, the factors which are most important are intended use, budget cost limits, time to completion and quality. Once these are understood a realistic basis for pro- ducing the design will be established. The designer should recognize however that in practice the brief is likely to evolve as the design develops.

Statutory constraints
The design of all buildings is subject to some form of statutory constraint. Multi-storey buildings, particularly those in an urban environment, are subject to a high level of constraint, which will generally be included in the conditions attached to the granting of outline planning permission.The form and degree that this may take could have significant impact on the frame design. For example, street patterns  and lighting restrictions may result in a non-rectilinear plan with a ‘stepped-back’ structure. If an appropriate layout is to be provided it is vital to understand these constraints from the outset.

Certain government buildings, financial headquarters and other strategically  sensitive buildings may need to be designed to resist terrorist threats. Provision may be in the form of blast-resistant flows, walls and facades to vulnerable areas.

Physical factors
The building must be designed to suit the parameters determined by its intended use and its local environment.

Its intended use will dictate the intensity of imposed loadings, the fire protection and corrosion resistance requirements and the scope of building services.

Certain government buildings, financial headquarters and other strategically sensitive buildings may need to be designed to resist terrorist threats. Provision may be in the form of blast-resistant floors, walls and façades to vulnerable areas.

The local environment will dictate the lateral load requirements but more importantly it will determine the nature of the existing ground conditions. To achieve overall structural efficiency it is essential that the structural layout of the frame is responsive to the constraints imposed by these ground conditions.

These factors are considered in more detail in the next section.

0 comentarios:

Post a Comment