| Author |
Message |
 Topic: Ductile coupled shear wall (DCSW) system |
hemalmistry
Replies: 0
Views: 664
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 Forum: SEFI General Discussion Posted: Fri Jan 01, 2021 5:51 am Subject: Ductile coupled shear wall (DCSW) system |
Dear SEFI members,
Building with ductile coupled wall system (DCWS) as lateral load resisting system (LLRS) is more effective compared to building with ductile / special walls, if designed and deta ... |
| Topic: HIGH STRENGTH REINFORCEMENT FOR GRAVITY AND SEISMIC APPLICATION |
hemalmistry
Replies: 0
Views: 1015
|
Forum: SEFI General Discussion Posted: Sat Nov 21, 2020 4:40 pm Subject: HIGH STRENGTH REINFORCEMENT FOR GRAVITY AND SEISMIC APPLICATION |
Dear SEFI Members,
IS:13920-2016 allows use of use of Fe 415 or lower grade reinforcing bars confirming to IS 1786 and satisfying requirements of clause 5.3.2 and 5.3.3 in Special moment resisting ... |
| Topic: MODELING FOR BACKSTAY ANALYSIS AS PER IS:16700-2017 |
hemalmistry
Replies: 0
Views: 832
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Forum: SEFI General Discussion Posted: Fri Nov 06, 2020 1:55 pm Subject: MODELING FOR BACKSTAY ANALYSIS AS PER IS:16700-2017 |
Dear SEFI members,
In clause 8.1.3.2, IS:16700-2017 have specified modeling requirement for sensitivity analysis for single tower or multiple towers with common podium, which are qualified for eval ... |
| Topic: IS 16700 - Wall+Perimeter Frame as Dual System |
hemalmistry
Replies: 2
Views: 1057
|
Forum: SEFI General Discussion Posted: Thu Oct 29, 2020 3:38 am Subject: IS 16700 - Wall+Perimeter Frame as Dual System |
Clause 8.4.2 does not require structural wall+moment frame system to be designed as dual system.
Structural wall+moment frame system or structural wall+perimeter frame (without flat slab/slab-colu ... |
| Topic: Torsional requirements clause |
hemalmistry
Replies: 3
Views: 1101
|
Forum: SEFI General Discussion Posted: Sat Aug 08, 2020 6:42 am Subject: Re: Torsional requirements clause |
| This one is valid situation, not addressed in code. However, in one of the international codes, such situation is handled as attached here, which states that if actual drift is very less than permissi ... |
| Topic: MINIMUM DIMENSIONS OF SLABS AND BEAMS IN UPCOMING / PROPOSED IS 456 |
hemalmistry
Replies: 1
Views: 866
|
Forum: SEFI General Discussion Posted: Sun Jun 07, 2020 3:07 pm Subject: MINIMUM DIMENSIONS OF SLABS AND BEAMS IN UPCOMING / PROPOSED IS 456 |
Dear members,
Following points related to minimum dimensions of slabs and beams needs attention in upcoming / proposed IS 456:
(1) Minimum thickness/depth recommended for non-prestressed (RC) on ... |
| Topic: DESIGN OF OMRF AND ORDINARY WALLS IN PROPOSED IS:456 |
hemalmistry
Replies: 0
Views: 650
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Forum: SEFI General Discussion Posted: Sun May 31, 2020 12:17 pm Subject: DESIGN OF OMRF AND ORDINARY WALLS IN PROPOSED IS:456 |
Dear Members,
All structural members (SMRF, special wall & coupling beams, gravity elements,joints etc) of buildings in seismic zone 3,4 & 5 needs to be designed as per IS:456 along with ad ... |
| Topic: STEEL REINFORCEMENT REQUIREMENT IN PROPOSED 456, IS 13920, IS 16700 AND IS 1786 |
hemalmistry
Replies: 0
Views: 752
|
Forum: SEFI General Discussion Posted: Sun May 24, 2020 6:55 pm Subject: STEEL REINFORCEMENT REQUIREMENT IN PROPOSED 456, IS 13920, IS 16700 AND IS 1786 |
Dear Members,
Presently IS:456 allows use of steel reinforcement which confirms to IS 1786 but not confirms to IS 13920 in OMRF and ordinary walls in zone 2.
IS 13920 & IS 16700 have some a ... |
| Topic: Requirement of major changes for Prestress concrete codal provisions in upcoming IS 456 |
hemalmistry
Replies: 0
Views: 655
|
Forum: SEFI General Discussion Posted: Sun May 24, 2020 4:49 pm Subject: Requirement of major changes for Prestress concrete codal provisions in upcoming IS 456 |
Dear Members,
Many of us have attended the webinar on "proposed changes to IS 456 and IS 1343" organized by SEFI on 14th may 2020. We are expecting major changes in existing codal provisi ... |
| Topic: Stiffness modifiers (effective stiffness) for analysis_IS:1893-1-2016 vs IS:16700-2017 vs upcoming IS:456 |
hemalmistry
Replies: 0
Views: 751
|
Forum: SEFI General Discussion Posted: Sun May 24, 2020 11:07 am Subject: Stiffness modifiers (effective stiffness) for analysis_IS:1893-1-2016 vs IS:16700-2017 vs upcoming IS:456 |
Dear Members,
In upcoming 456, cracked section properties (effective stiffness) are specified for various structural elements based on type of loads (EQ and Non-EQ), however level of load (service ... |
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