PPF System

PPF System

Overview and Features

1. PPF SYSTEM Overview
DIS system, a lightweight assembly frame, is almost standardized and widely used for factory/storehouse structures below the width of 18M.
However, for structures of widths ranging between 18~30M, H-steel and PEB structures are compositely used.

DIS system, a lightweight assembly frame, is not up for application in mid scale according to thickness or material form. H-shaped steel and PEB
SYSTEM are inadequate for appropriately responding to the customer’s demands. Therefore, we have developed a product that is applicable for widths between 18~30M.

The recently developed Portal Frame and DIS system were grafted to introduce PPF system, a medium and large scaled new frame system.

2. PPF SYSTEM Composition

3. PPF SYSTEM Design
The flange is designed as a pentagon to guarantee stability, while the WEB material aesthetically expresses the nature to escape from the monotony of structural materials and display an aesthetic appearance.

4. PPF SYSTEM Features

New Form and High Strength

• Varied flange and WEB width to reduce weight and achieve sectional efficiency.
• Developed in the close-shaped form in compliance with the portal structural system.
• High strength such as SN490 and SPA-H were applied.

Economical efficiency through member decrease

• Cold-formed flange with 6T, set WEB as 4.5T to control WEB height, minimized member weight and maximized the rigidity.

Environment-friendly material

• Minimized work on-site to minimize construction wastes and to make recycle possible

Reduction in field erection time and constructability

• Minimized joint parts and applied end-plate for easy joint.
• Used only bolts and the construction became easy and precise.

Credible quality

• Obtained credibility by 100% automated production line.
• Acquired structural stability through the structural calculation program.
  

Material and Shape

1. Material

1) Main beam

2) Sub beam(Purlin, Girt)

2. Main Material Shape and Product Type

Size	shape	Web(H)	Flange(W)	Web thickness	Flange thickness
		(mm)	(mm)	(mm)	(mm)
PF 450		450	450	4.5	6.0
PF 500		500
PF 550		550
PF 600		600
PF 650		650
PF 700		700
NOTE : FIRST PRODUCT PF500~PF650/ORDER MADE PRODUCT PF450,PF700

Shape		Hole location
400
450
500
550
600
650
700

Structural Experiment and Analysis

1. PPF SYSTEM structural experiment [Testing by: Research Institute of Industrial Science & Technology (RIST), Pusan National University]

• Certified structural stability through structural capacity evaluation on base joint, eaves joint and ridge joint
• Acquired certifying data on evaluation of factory-manufactured end plate joint fixation

Experiment on joint

Measure organization	BB test piece
Longitudinal support by -channel	BB test piece experiment

Experiment of repetitively applying force

Eaves joint	Base joint
Displacement equipment of Eaves joint	Displacement equipment of base joint
End-plate test piece
Displacement equipment of end-plate test piece

Experiment Results of repetitively applying force

Experiment on welding joint

2 Pieces welded	2 Pieces welded
2mm gap	5mm gap
3mm gap	7mm gap

2. PPF SYSTEM Structural Analysis

• Developed PPF™, the 3D-based structural designing program, so that the efficiency of structural designing to be maximized
• Integrated structural analysis, structural designing and drawing composition (Performed detailed analysis per member → Concluded the structural calculation)

Design load condition

Sample building Design Factory : 1,200 m² Wind condition and wind region : 35(C) region Building size(DxWxH) : 24x50x9(m) SPAN : 24m Column distance : 5m Design Load Dead Load 50kg/m² Live Load 50kg/m² Wind Load 35m/sec(C)

Register project and Modeling

Selection Main beam and sub beam

Structural analysis and Design

Analysis results

Analysis results of element

Section Properties and Allwable Span

1. PPF SYSTEM Section Properties

Standard		PF 450	PF 500	PF 550	PF 600	PF 650	PF 700
SHAPE
WEB THICKNESS(mm)		4.5		FLANGE THICKNESS		6.0
WEIGHT(kg)		52.40	54.17	55.93	57.70	59.46	61.23
SECTION AREA A(mm²)		6,675.14	6,900.14	7,125.14	7,350.14	7,575.14	7,800.14
SECTION AREA A(mm²)		6,675.14	6,900.14	7,125.14	7,350.14	7,575.14	7,800.14
CENTER AXIS	X(mm)	74.79	74.72	74.66	76.60	74.55	74.50
	Y(mm)	225	250	275	300	325	350
INERTIA MOMENT	Ixx(cm4)	18,954.98	24,653.09	31,213.71	38,664.98	47,035.01	59,351.93
	Iyy(cm4)	1,360.38	1,360.51	1,360.63	1,360.75	1,360.86	1,360.97
SECTION MODULOUS	Zxx(cm²)	842.44	986.12	1,135.04	1,288.83	1,447.23	1,610.06
	Zyy(cm²)	180.88	180.73	180.60	180.48	180.36	180.25
RADIUS OF GYRATION	Rxx(mm)	168.51	189.02	209.30	229.36	249.18	268.78
	Ryy(mm)	45.14	44.40	43.03	43.03	42.38	41.77

2. PPF SYSTEM Allowable Span

Load Condition Dead Load(D.L) : 50kg/m² Live Load(S.L) : 50kg/m² Wind Load(W.L) - Design Wind velocity Speed : 35m/sec - Wind region : C region Building height : 6.0M Roof Slope : 15° Foundation Condition : fix conditionFIX)

Column distance : 4.0M

NOTE : Standard product - PF500, PF550, PF600 / order-made product -PF450, PF700

Column distance : 6.0M

NOTE : Standard product - PF500, PF550, PF600 / order-made product -PF450, PF700