ENEQ642-23X (D) General non-calendar-based 2023 (Distance)

Seismic Assessment and Retrofit Strategies for Existing Reinforced Concrete Buildings

This occurrence is not offered in 2023

15 points

Details:
Start Date: Monday, 27 March 2023
End Date: Sunday, 18 June 2023
Withdrawal Dates
Last Day to withdraw from this course:
  • Without financial penalty (full fee refund): Sunday, 9 April 2023
  • Without academic penalty (including no fee refund): Sunday, 28 May 2023

Description

Seismic assessment procedures. Failure mechanisms and experimental evidence. Numerical investigation of reinforced-concrete-infilled frames. Modelling techniques. Overview of alternative retrofit strategies. Use of fibre-reinforced polymers. Flexural, shear and confinement upgrading. Diagonal metallic haunches, external walls, post-tensioned walls, selective weakening.

The course will cover the following main aspects:

• Overview of key and most common structural weaknesses and associated anticipated behaviour/response of existing reinforced concrete buildings.
Reference will be given to experimental tests, analytical/numerical studies and the recent lessons learnt from post-earthquake building inspections and investigations.

• Discussion on main features and approaches of alternative seismic assessment procedures, with reference to existing national and international literature.

• Fundamentals of analytical and numerical modeling techniques to represent the seismic response of as-built reinforced concrete buildings

• Introduction to Performance-Based Retrofit Strategies and alternative solutions/techniques available/mostly used in New Zealand and/or overseas.

• Feasibility and efficiency of adopting and/or combining different solutions such as Fibre Reinforced Polymers, low-invasive low-cost metallic diagonal haunches, (post-tensioning or traditional) wall systems and selective weakening techniques.

Learning Outcomes

The course intends to provide the students/attendees with basic information and background on seismic assessment procedures, strengthening/retrofitting strategies and techniques for reinforced concrete buildings.

Focus will be given, while not limited, to the New Zealand design and construction practice, to the SLaMA Method and the overall philosophy and procedure underpinning the recently published NZSEE2017 Seismic Assessment Guidelines.

At the end of the course students would be expected to have gained familiarity with:

a) the general concepts and principles underpinning seismic assessment and retrofit approaches, according to a performance-based philosophy;

b) the relevant existing literature at national and international level for either assessment and retrofit, based on experimental, numerical, analytical studies and observations/reports from post-earthquake recognisance missions;

c) the general potentiality, as well as limitations, of a range of strengthening retrofit solutions, either based on traditional or more recently developed techniques.

Prerequisites

Subject to approval of Head of Department. RP: Post-graduate admission and approval of the departmental Director of Post-graduate Studies. Undergraduate background in earthquake engineering is expected.

Restrictions

ENEQ692

Recommended Preparation

Post-graduate admission and approval of the departmental Director of Post-graduate Studies. Undergraduate background in earthquake engineering is expected.

Timetable Note

The course will be delivered online in two weeks-blocks to be held on Zoom/Google meet. (connection link provided to the enrolled students on the UC Learn Platform).

Week 1: Tuesday  5th April 2022– 6.00pm-9:00pm (NZ Time, GMT +12)
Wednesday 6th April 2022 - 6.00pm-9:00pm
Thursday 7th April 2022- 6.15pm-9:00pm
Friday 8th April 2022- 6.15pm-9:00pm

Week 2: Tuesday  26th April 2022– 6.00pm-9:00pm (NZ Time, GMT +12)
Wednesday 27th April 2022 - 6.00pm-9:00pm
Thursday 28th April 2022- 6.00pm-9:00pm
Friday 29th April 2022- 6.00pm-9:00pm

Lecturer

Stefano Pampanin (University of Rome, Italy)

Assessment

Assessment Due Date Percentage 
final written exam 50%
Project report 50%


The students, either individually or paired in groups, will be assigned a case-study project (worth 50%). The project work will cover aspects of:

- Initial Seismic Assessment (ISA) and detailed seismic assessment (DSA)
- Analytical modelling using a SLaMA (Simple Lateral Analysis Procedure) according to the NZSEE2017 and recent research developments available in literature
- Analytical Pushover and Evaluation of the %NBS (New Building Standard), seismic grading  and expected Performance at various intensity levels
- Numerical modelling of the structural response – using lumped plasticity models created with available softwares such as Ruaumoko, SAP2000, ETABS, Opensees at discretion of the participants
The students, either individually or paired in groups, will be assigned a case-study project (worth 50%). The project work will cover aspects of:

- Initial Seismic Assessment (ISA) and detailed seismic assessment (DSA)
- Analytical modelling using a SLaMA (Simple Lateral Analysis Procedure) according to the NZSEE2017 and recent research developments available in literature
- Analytical Pushover and Evaluation of the %NBS (New Building Standard), seismic grading  and expected Performance at various intensity levels
- Numerical modelling of the structural response – using lumped plasticity models created with available softwares such as Ruaumoko, SAP2000, ETABS, Opensees at discretion of the participants

- Conceptual and preliminary design of alternative retrofit solutions and performance evaluation of the retrofitted structure
The main findings will be presented via a written report.

A final written exam (worth 50%) will take place at the end of the course.

Textbooks / Resources

Handouts of the lectures will be provided in .pdf form

A selection of suggested reading material on the topics covered in class will also be provided in electronic form and uploaded on a common repository (DropBox-type, Google Classroom).

Indicative Fees

Domestic fee $1,164.00

* All fees are inclusive of NZ GST or any equivalent overseas tax, and do not include any programme level discount or additional course-related expenses.

Minimum enrolments

This course will not be offered if fewer than 10 people apply to enrol.

For further information see Civil and Natural Resources Engineering .

All ENEQ642 Occurrences

  • ENEQ642-23X (D) General non-calendar-based 2023 (Distance) - Not Offered