Membrane plan&design

Large Span Spatial Structure

Structure system with longer than 100m span, dispersing loads in3-dimensional power flows (Curved Surface Structure)

Next Generation of Large Span Spatial Structure

• Large Span Spatial Structures with linger than 300m span
• Soft, Environmental Friendly, Future-oriented longer Spatial Structures.
• Optimized in form, rigidity

Membrane Structure

	Framed membrane Structure		Suspension membrane Structure		Pneumatic Structure
	Loading weight is supported by frame and membrane is used as a secondary structural material or finishing materials.		Bottom part is supported by Membrane and the Membrane is supported by prop, arch or cable, etc.		Single Air-supported Membrane Structure Supports the structure with in-flowed air pressure (20-50mm/Aq) Double Air-supported Membrane Structure Supports the structure with enforced in-flowed air (150-650mm/Aq)
					Air Supported Structure Air Inflated Structure

Membrane Comparison

ITEM	PVDF	PVF	PTFE	TEST WAY
Textile	Polyester	Polyester	Glass Fiber
Coating	PVC + PVDF	PVC + PVF	Teflon(PTFE)
두께(mm)	0.8 over	0.8 over	0.55 over	KS K 0506
Tensile Strength(kgf/5cm)	350 ~ 750	350 ~ 750	400 ~ 900	KS K 0521
Tensile Strength(kgf)	60 ~ 80	60 ~ 80	30 ~ 40	KS K 0537
Life Span	10 ~ 12	20 ~ 25	25 ~ 30
Self Cleaning Effect	Normal	Excellent	Excellent
Color	Variety	Restrictive	Restrictive
Price	Low	High	Highest

Fluorine contained resin Characteristics

Generally we call high polymer contained fluorine atom fluorine contained resin.

Lots of commercial fluorine contained resin, common characteristics are excellent thermostability, chemically resistant, electric insulation and low friction.

A wide application area such as chemical industries, electrical and electronics industries and also a space development, airplane industries as engineering plastic

Classification of Large Span Spatial Structures

	Rigid System		Flexible System
Conti- nuous System	Shell & Dome A structure in which plane members are constructed in curved form. The load is transferred to the support point through the plane member. The dome is a hemispherical shape, a kind of Shell structure.	Hybrid Structure	Membrane Structure Membrane use of ductile as structure. Structure System: Strain the membrane to maintain a stable shape.
Discrete System	Space Frame Three-dimensional truss extending in two directions to a plane or curved surface with a truss beam consisting of straight members.		Membrane Structure A structure that does not resist bending or compression, it only delivers tensile force. Long span is possible by supporting load using tensile force only.