STRUCTURAL DESIGN FOR ARCHITECTURE

Steel structures

Fig. 3.52 Resistance of a multi-storey framework to wind load.
(a) The wind loading acts on the cladding and is transmitted by the cladding support system to the floors of the building.
(b) In this plan view the wind loading appears as a distributed load on the edge of the floor slab, which is restrained by
the vertical-plane bracing.
(c) The vertical-plane bracing is shown here independently of the rest of the frame. The loads received from each floor are
indicated. These are transmitted to the foundations by the bracing girder (which consists of the columns forming the bay,
together with the diagonal bracing elements).

Fig. 3.53 The locations of vertical-

plane bracing must be compatible

with space-planning requirements.

Typical arrangements, in which verti-

cal-plane bracing is located in the

perimeter walls or around service

cores, are shown here.

Vertical-plane bracing 93

Vertical-plane bracing

(b) Floor slabs transmit wind load to

vertical-plane bracing

(a) Cladding transfers wind load to

floor slabs

Wind load

(c) Vertical-plane bracing transmits

wind load to foundations