Background to draft SANS 10160 (2009): part 4 seismic loading

This paper provides a critical overview of the background to the revisions which led to the formulation of Part 4, Seismic Loads, of the South African Standard SANS 10160. The paper also presents a comparison to demonstrate the calibration of the standard against other international standards. Euroc...

Full description

Bibliographic Details
Main Author: J A Wium
Format: Article
Language:English
Published: South African Institution of Civil Engineering 2010-04-01
Series:Journal of the South African Institution of Civil Engineers
Subjects:
Online Access:http://www.scielo.org.za/scielo.php?script=sci_arttext&pid=S1021-20192010000100003
_version_ 1797760487760330752
author J A Wium
author_facet J A Wium
author_sort J A Wium
collection DOAJ
description This paper provides a critical overview of the background to the revisions which led to the formulation of Part 4, Seismic Loads, of the South African Standard SANS 10160. The paper also presents a comparison to demonstrate the calibration of the standard against other international standards. Eurocode 8 was used as the principle reference for the formulation of the revised clauses. The clauses for seismic design of SANS 10160 are based on the concept of regular buildings with suitable detailing to allow the necessary ductile behaviour. The paper points out a need to review the use of a redundancy factor which makes provision for a possible lower design peak ground acceleration value and the behaviour factor for reinforced concrete shear walls. The damage limitation criteria also need to be based on Eurocode 8. It is shown that the revised formulation provides lower design forces for regular buildings than in the current standard. This is, however, dependent on the choice of a design nominal peak ground acceleration for the various regions in the country. The available information on nominal peak ground acceleration is presented, and it is pointed out that a decision is needed on the choice of this important parameter for the seismic zones of South Africa.
first_indexed 2024-03-12T18:59:18Z
format Article
id doaj.art-5d5548b5debe43978706c32d7da7f1df
institution Directory Open Access Journal
issn 1021-2019
language English
last_indexed 2024-03-12T18:59:18Z
publishDate 2010-04-01
publisher South African Institution of Civil Engineering
record_format Article
series Journal of the South African Institution of Civil Engineers
spelling doaj.art-5d5548b5debe43978706c32d7da7f1df2023-08-02T06:43:23ZengSouth African Institution of Civil EngineeringJournal of the South African Institution of Civil Engineers1021-20192010-04-015210Background to draft SANS 10160 (2009): part 4 seismic loadingJ A WiumThis paper provides a critical overview of the background to the revisions which led to the formulation of Part 4, Seismic Loads, of the South African Standard SANS 10160. The paper also presents a comparison to demonstrate the calibration of the standard against other international standards. Eurocode 8 was used as the principle reference for the formulation of the revised clauses. The clauses for seismic design of SANS 10160 are based on the concept of regular buildings with suitable detailing to allow the necessary ductile behaviour. The paper points out a need to review the use of a redundancy factor which makes provision for a possible lower design peak ground acceleration value and the behaviour factor for reinforced concrete shear walls. The damage limitation criteria also need to be based on Eurocode 8. It is shown that the revised formulation provides lower design forces for regular buildings than in the current standard. This is, however, dependent on the choice of a design nominal peak ground acceleration for the various regions in the country. The available information on nominal peak ground acceleration is presented, and it is pointed out that a decision is needed on the choice of this important parameter for the seismic zones of South Africa.http://www.scielo.org.za/scielo.php?script=sci_arttext&pid=S1021-20192010000100003Structural design standardsSouth African practiceseismic loadsactions on structuresEurocode
spellingShingle J A Wium
Background to draft SANS 10160 (2009): part 4 seismic loading
Journal of the South African Institution of Civil Engineers
Structural design standards
South African practice
seismic loads
actions on structures
Eurocode
title Background to draft SANS 10160 (2009): part 4 seismic loading
title_full Background to draft SANS 10160 (2009): part 4 seismic loading
title_fullStr Background to draft SANS 10160 (2009): part 4 seismic loading
title_full_unstemmed Background to draft SANS 10160 (2009): part 4 seismic loading
title_short Background to draft SANS 10160 (2009): part 4 seismic loading
title_sort background to draft sans 10160 2009 part 4 seismic loading
topic Structural design standards
South African practice
seismic loads
actions on structures
Eurocode
url http://www.scielo.org.za/scielo.php?script=sci_arttext&pid=S1021-20192010000100003
work_keys_str_mv AT jawium backgroundtodraftsans101602009part4seismicloading