Seismic Construction Method / Application Table

Standard Method	HK Type (Seismic Pedestal)	Bolted Stringer System
HN Method (Foot Posts Method)

Standard Method

Characteristics

Standard method

Those are standard products in stock. (M24×□150×4.5mm is made-to-order product.)

Example Calculation of Seicmic Strength (Reference value)

		FFH

		H=300mm	350	400	450	500
U n i t S i z e	□450	0.49	0.41	0.36	0.31	0.28
	□450	0.89	0.75	0.65	0.57	0.51
	□465	0.46	0.39	0.34	0.29	0.26
	□465	0.84	0.70	0.61	0.54	0.48
	□500	0.40	0.34	0.29	0.26	0.23
	□500	0.72	0.61	0.53	0.46	0.41
	□600	0.28	0.24	0.20	0.18	0.16
	□600	0.51	0.43	0.37	0.33	0.29

（Unit：G）
Upper section : In case of Pedestal is M20×□100×3.2t
Lower section : In case of Pedestal is M24×□150×4.5t
Condition: Live load: 500kgf/㎡

Top

HK Type (Seismic Pedestal)

Characteristics

HK method (Pipe feet method)

It is applicable to products certified as seismic raised floors by the Japanese Ministry of Construction.
In addition, a large effective space for wiring can be secured.
Customers are able to select a size depending on the design specifications.

Example Calculation of Seismic Strength (Reference Value)

		FFH

		H=300mm	350	400	450	500
U n i t S i z e	M24× Φ34.0× 2.3t× □170× 4.5t	0.87	0.73	0.63	0.55	0.49
	M24× Φ34.0× 2.3t× □170× 4.5t	1.23	1.03	0.89	0.78	0.70
	M24× Φ42.7× 2.3t× □200× 6.0t	1.11	1.11	1.04	0.91	0.81
	M24× Φ42.7× 2.3t× □200× 6.0t	1.53	1.53	1.47	1.29	1.15
	M24× Φ48.6× 2.3t× □220× 6.0t	1.11	1.11	1.11	1.11	1.07
	M24× Φ48.6× 2.3t× □220× 6.0t	1.53	1.53	1.53	1.53	1.52
	M30× Φ60.5× 2.3t× □240× 9.0t	2.13	2.13	2.13	1.88	1.67
	M30× Φ60.5× 2.3t× □240× 9.0t	2.93	2.93	2.93	2.67	2.38

（Unit：G）
Upper section： In case of Unit Size is □600
Lower section： In case of Unit Size is□500
Condition: Live load: 500kgf/㎡

Certification

Certification by the Ministry of Land, Infrastructure and Transportation
"Seismic raised floor"
Construction Ministry evaluation number 90108

Top

Bolted Stringer System

Characteristics

HS method (Stringer method)

Despite the stringer type, it can be easily installed and removed.
Wiring can be performed by removing it.

Example Calculation of Seismic Strength (Reference Value)

		FFH

		H=300mm	350	400	450	500
U n i t S i z e	□450	0.56	0.47	0.41	0.36	0.32
	□450	1.02	0.86	0.75	0.66	0.59
	□465	0.53	0.45	0.39	0.33	0.30
	□465	0.97	0.81	0.70	0.62	0.55
	□500	0.46	0.39	0.33	0.30	0.26
	□500	0.83	0.70	0.61	0.53	0.47
	□600	0.32	0.28	0.23	0.24	0.18
	□600	0.59	0.49	0.43	0.38	0.33

（Unit：G）
Upper section： In case of Unit Size is □600
Lower section： In case of Unit Size is□500
Condition: Live load: 500kgf/㎡

Top

HN Method (Foot Posts Method)

Characteristics

HN method (Foot posts method)

It is effective for the reforms of existing systems.
It does not require as much surface strength from the base floor surface.

Example Calculation of Seismic Strength (Reference Value)

		FFH

		H=300mm	350	400	450	500
U n i t S i z e	□450	0.95	0.95	0.95	0.89	0.77
	□450	0.76	0.75	0.75	0.70	0.60
	□465	0.89	0.89	0.89	0.83	0.72
	□465	0.71	0.70	0.70	0.65	0.56
	□500	0.77	0.77	0.77	0.72	0.62
	□500	0.61	0.61	0.60	0.56	0.48
	□600	0.56	0.56	0.56	0.49	0.42
	□600	0.45	0.44	0.44	0.38	0.33

（Unit：G）
Upper section： In case of Installation pitch
Lower section： In case of Full pitch installation
Condition: Live load: 500kgf/㎡

Seismic Construction Method / Application Table

Standard Method

Characteristics

Example Calculation of Seicmic Strength (Reference value)

HK Type (Seismic Pedestal)

Characteristics

Example Calculation of Seismic Strength (Reference Value)

Certification

Bolted Stringer System

Characteristics

Example Calculation of Seismic Strength (Reference Value)

HN Method (Foot Posts Method)

Characteristics

Example Calculation of Seismic Strength (Reference Value)