scholarly journals Architectural Expression of Seismic Strengthening

2001 ◽  
Vol 17 (3) ◽  
pp. 417-426 ◽  
Author(s):  
Andrew Charleson ◽  
Julieanna Preston ◽  
Mark Taylor
Keyword(s):  
Structural Engineering ◽  
Seismic Retrofitting ◽  
Office Building ◽  
Masonry Building ◽  
Historic Buildings ◽  
Seismic Strengthening ◽  
Aesthetic Sense ◽  
Alternative Approach ◽  
The Subject ◽  
Unreinforced Masonry Building

Current seismic strengthening approaches to historic buildings place emphasis upon concealing engineering technologies. This study investigates, through a process of architectural and structural engineering design, the architectural possibilities inherent in a completely different approach. Recognizing both conservation concerns and the architectural qualities of two existing earthquake-prone buildings, the study explores seismic strengthening strategies that are exposed to view in order to contribute, in both a physical and aesthetic sense, a layer of architectural richness. A 1960s eight-story reinforced-concrete office building and a three-story unreinforced masonry building are the subject of theoretical seismic strengthening schemes. The paper describes the buildings, the strengthening approaches from both architectural and structural engineering perspectives, and comments on the outcome with respect to conservation guidelines. Although the proposed schemes challenge some sections of the guidelines, the authors believe the exposed structure enhances the existing architecture, and in so doing suggests an alternative approach for seismic retrofitting.

Analysis and seismic retrofitting of unreinforced masonry building: a case study

2021 ◽  
Author(s):  
Ishfaq Aziz ◽  
Raquib Ahsan ◽  
Md. Shadman Sakib ◽  
Shamontee Aziz ◽  
Md. Aminul Islam ◽  
...  
Keyword(s):  
Unreinforced Masonry ◽  
Seismic Retrofitting ◽  
Masonry Building ◽  
Unreinforced Masonry Building

Seismic performance of a retrofitted heritage unreinforced masonry building during the 2010/2011 Canterbury earthquakes

2021 ◽  
pp. 875529302098802
Author(s):  
Aina Noor Misnon ◽  
Shannon Abeling ◽  
John Hare ◽  
Devina Shedde ◽  
Reza Jafarzadeh ◽  
...  
Keyword(s):  
New Zealand ◽  
Unreinforced Masonry ◽  
Seismic Retrofitting ◽  
Structural Systems ◽  
Masonry Building ◽  
Architectural Heritage ◽  
Total Cost ◽  
Earthquake Performance ◽  
Unreinforced Masonry Building ◽  
Building Demolition

The Heritage Hotel (formerly Old Government Buildings) is one of the architectural heritage icons of Christchurch, New Zealand. Seismic retrofitting was undertaken on the structure in 1995 to achieve the earthquake loading provisions of the 1992 standard for design loadings (NZS 4203:1992). This building is a distinguished 1909 unreinforced masonry Italian High Renaissance palazzo building. The retrofit work included the installation of new lateral load-resisting structural systems, refurbishment of individual building elements, and partial building demolition with a total cost of approximately NZ$3.75 million. Detailed observations following the 2010/2011 Canterbury earthquakes showed that the building was subject to only minor damage during the September 2010 earthquake, whereas the February 2011 event caused some damage to exterior stonework and flooding in the basement due to liquefaction. This damage was easily repaired, and the building was fully functional by September 2013. Reported herein are details showcasing the success of the seismic retrofit and post-earthquake performance observations.

scholarly journals AN ALTERNATIVE APPROACH TO IDENTIFY KEY INDUSTRIES: ISSUES TO SELECTION CRITERIA

2014 ◽  
Vol 15 (3) ◽  
pp. 577-598
Author(s):  
Abul Quasem Al-Amin ◽  
Abdul Hamid Jaafar
Keyword(s):  
Selection Criteria ◽  
Public Investment ◽  
Correct Identification ◽  
The Public ◽  
Study Approach ◽  
Sectoral Planning ◽  
Alternative Approach ◽  
The Subject ◽  
Key Industries ◽  
High Degree

Within a process of modeling exercise, this study aimed to understand appropriate selection criteria to identify key industries. There are many key sector identification linkage measures in the subject matter and sensitivity issue among them can be tricky because many of these measures differ only slightly but can result in outcomes that are quite dissimilar. With this background, we proposed an alternate approach that helps to resolve this issue. The proposed approach utilizes in this study by five sub-methods and high degree of the frequency of their occurrences in sub-methods to determine the key sectors. The study approach is applied to Malaysia as the public sector investment remains a large share in the national economy, like other developing countries, and the correct identification is still a challenge for sectoral planning. The experiences from this study can be used to guide appropriate public investment in Malaysia and elsewhere with similar economic forms.

Applications of Seismic Isolation Retrofitting in Historic Buildings

2015 ◽  
Vol 723 ◽  
pp. 358-363
Author(s):  
Ru Yin ◽  
Yong Zhan Chen ◽  
Zhong Fan Chen
Keyword(s):  
Seismic Isolation ◽  
Seismic Retrofitting ◽  
Historic Buildings ◽  
Paper Briefly ◽  
Basic Principles ◽  
Conventional Methods ◽  
At Home

Compared with conventional methods of seismic retrofitting, seismic isolation is not only more economical, but also can preserve the original appearance of historic buildings. Therefore, this method is more suitable for retrofitting of historic buildings. This paper briefly introduces the basic principles of seismic isolation retrofitting and some application examples at home and abroad. Besides, this paper summarizes some issues that should be paid attention to in seismic isolation retrofitting.

Parapets, Politics, and Making a Difference: Lessons from Christchurch

2017 ◽  
Vol 33 (4) ◽  
pp. 1241-1255
Author(s):  
Ann Brower
Keyword(s):  
New Zealand ◽  
Bright Light ◽  
Unreinforced Masonry ◽  
Masonry Building ◽  
Dalai Lama ◽  
Main Street ◽  
Making A Difference ◽  
Remediation Time ◽  
Unreinforced Masonry Building

At 12:51 on 22 February 2011, 12 people died beside me. The parapet and facade of an unreinforced masonry building on the main street of Christchurch, New Zealand, crushed the bus that I was riding. I'm the only one left, the lucky 13th. My leg, my hand, and my soul will never be the same. I broke more bones than the surgeons were willing to count, spent two months in the hospital, and most of a year off work. I walked, slept, and dreamed in a fog for four years. It cost half a million dollars to save my left leg. I treasure that leg, scars and all, but still feel the earthquake in every step. In this opinion paper, I share my story—from the earthquake, to the Bright Light, to the Dark Place, to the hospital, to the Dalai Lama, to the halls of Parliament. I also share the story of a nation coming to grips with its home on the Ring of Fire. The story ends on 8 May 2016, when Parliament passed the new Building Act, complete with a ministerially titled “Brower Amendment” that halved the remediation time for unreinforced masonry parapets and other falling hazards. I conclude with the lessons I've learned on making a difference.

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