12-25-2010, 05:07 AM
Dear all member of CivilEA
First, Happy birthday to CivilEA
I will continue my review, today about following thread :
I will add important info related with that topic.
I will talk about relation between framing type & seismic zone - seismic design category
I'm focusing in 2 relation :
1) ACI 318/318M 1999 & UBC 97 & older building code
2) ACI 318/318M 2008 & IBC 2006 / ASCE 7-05
=================================
ACI 318/318M 1999 & UBC 97 & older building code
=================================
(*) Sway Ordinary --> design of reinforced concrete frame with "Ordinary moment-resisting frame (OMRF)"
(*) Sway Intermediate --> design of reinforced concrete frame with "Intermediate moment-resisting frame (IMRF)"
(*) Sway Special --> design of reinforced concrete frame with "Special moment-resisting frame (SMRF)"
Relation Framing Type ( Sway Special/Intermediate/ Ordindary) with Seismic Zone of UBC 1997
(*) Non Sway & OMRF use for design of frame that located in Seismic Zone 0 & 1 of UBC 1997
(*) IMRF use for design of frame that located in Seismic Zone 2 of UBC 1997
(*) SMRF use for design of frame that located in Seismic Zone 3 & 4 of UBC 1997
IMPORTANT NOTE
When ACI 318/318M 1999 published, originally their seismic design method refer to UBC 1997 / ASCE 7-95
With relation of framing type & seismic zone as I explain above
Then you must very careful if use ACI 318/318M 1999 with seismic design method other than UBC 1997 / ASCE 7-95
=============================
ACI 318/318M 2008 & IBC 2006 / ASCE 7-05
=============================
Relation "Framing Type" ( Sway Special/Intermediate/ Ordindary) with Seismic Design Category
1) SDC A
For RC Building located in lowest seismic hazard area
RC Building design as : Non Sway
2) SDC B
RC Building design as : "Ordinary Moment Resisting Frame (OMRF)"
3) SCD C
RC Building design as : "Intermediate Moment Resisting Frame (IMRF)"
4) SDC D/E/F
RC Building design as : "Special Moment Resisting Frame (SMRF)"
SUMMARY
When you do seismic design of RC Building based on ACI 318/318M with ETABS/SAP2000,
then check whether your Framing Type match with your Seismic Zone - Seismic Design Category.
You must careful with relation Framing Type & Seismic Zone - Seismic Design Category.
You must set correct relation, if you careless your output is useless/meaningless.
I hope my review useful for all of you
Thx
Response to "ravisbassi"
I do not review all shared material in our forum
I focus on excel sheets / materials related with topics I really love that are seismic design & pushover + other topic if I know it.
Thx
First, Happy birthday to CivilEA
I will continue my review, today about following thread :
Code:
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I will talk about relation between framing type & seismic zone - seismic design category
I'm focusing in 2 relation :
1) ACI 318/318M 1999 & UBC 97 & older building code
2) ACI 318/318M 2008 & IBC 2006 / ASCE 7-05
=================================
ACI 318/318M 1999 & UBC 97 & older building code
=================================
(*) Sway Ordinary --> design of reinforced concrete frame with "Ordinary moment-resisting frame (OMRF)"
(*) Sway Intermediate --> design of reinforced concrete frame with "Intermediate moment-resisting frame (IMRF)"
(*) Sway Special --> design of reinforced concrete frame with "Special moment-resisting frame (SMRF)"
Relation Framing Type ( Sway Special/Intermediate/ Ordindary) with Seismic Zone of UBC 1997
(*) Non Sway & OMRF use for design of frame that located in Seismic Zone 0 & 1 of UBC 1997
(*) IMRF use for design of frame that located in Seismic Zone 2 of UBC 1997
(*) SMRF use for design of frame that located in Seismic Zone 3 & 4 of UBC 1997
IMPORTANT NOTE
When ACI 318/318M 1999 published, originally their seismic design method refer to UBC 1997 / ASCE 7-95
With relation of framing type & seismic zone as I explain above
Then you must very careful if use ACI 318/318M 1999 with seismic design method other than UBC 1997 / ASCE 7-95
=============================
ACI 318/318M 2008 & IBC 2006 / ASCE 7-05
=============================
Relation "Framing Type" ( Sway Special/Intermediate/ Ordindary) with Seismic Design Category
1) SDC A
For RC Building located in lowest seismic hazard area
RC Building design as : Non Sway
2) SDC B
RC Building design as : "Ordinary Moment Resisting Frame (OMRF)"
3) SCD C
RC Building design as : "Intermediate Moment Resisting Frame (IMRF)"
4) SDC D/E/F
RC Building design as : "Special Moment Resisting Frame (SMRF)"
SUMMARY
When you do seismic design of RC Building based on ACI 318/318M with ETABS/SAP2000,
then check whether your Framing Type match with your Seismic Zone - Seismic Design Category.
You must careful with relation Framing Type & Seismic Zone - Seismic Design Category.
You must set correct relation, if you careless your output is useless/meaningless.
I hope my review useful for all of you
Thx
Response to "ravisbassi"
I do not review all shared material in our forum
I focus on excel sheets / materials related with topics I really love that are seismic design & pushover + other topic if I know it.
Thx