1.5 Building Structures and Forms

What is a cellular construction?

• Comprising of a cavity wall

• Designed for big, wide open spaces

• Construction with concrete elements in which part of the interior concrete is replaced by voids

• Generally, a cellular construction supports the foundations

What is a rectangular frame construction?

• Tensional forces are resisted

• Compressional forces are resisted

• The superstructure supports the roof

• Weight is carried by a skeletal framework of columns and beams

What is a portal frame construction?

• This type of construction suits wide, open spans.

• This type of construction uses raft foundations.

• This type of construction is popular.

• This type of construction create separate rooms.

In cellular construction, ....

• often fabricated from structural steel, reinforced pre-cast concrete, or laminated timber

• load bearing walls provide the main vertical support and lateral stability for floors

• a lightweight timber-frame is a common structure used in the construction of contemporary housing

• beams or rafters are supported at either end by columns

In cellular construction, ....

• external wall panels, lift shafts or staircases are used to provide stability

• load bearing walls provide the main vertical support and lateral stability for floors

• a lightweight timber-frame is a common structure used in the construction of contemporary housing

• beams or rafters are supported at either end by columns

In cellular construction, ....

• external wall panels, lift shafts or staircases are used to provide

  stability

• load bearing walls provide the main vertical support and lateral stability for floors

• bridging components such as floors, roofs and beams are supported by load bearing walls

• the joints between the beams and columns are 'rigid' so the beam can be reduced in size and can span large distances

In cellular construction, ....

• external wall panels, lift shafts or staircases are used to provide stability

• load bearing walls provide the main vertical support and lateral stability for floors

• bridging components such as floors, roofs and beams are supported by load bearing walls

• prefabricated modular construction, such as pods, may be used