Part 1: Architect’s Guide 1 - 14 The criteria which help to determine the choice of column are usually the following: Architectural preference Grid layout and size Cost of steel products (I or H sections are less expensive than hollow sections) Installation costs (complexity of installation) Ease and simplicity with which secondary components (for façades, walls, ceilings) can be connected Work and products needed to respond to essential requirements (fire, corrosion, etc.). Table 4.1 shows the main types of columns used in multi-storey buildings. Composite columns provide a better fire resistance. Table 4.1 Main types of columns Steel section Composite section H-section Circular hollow section The column design shown in Figure 4.2 provides added value architecture, cost savings in material and optimized structural behaviour. Figure 4.2 Building structure with tie members
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