scholarly journals Assessment and Rehabilitation of Culturally Protected Prince Rudolf Infantry Barracks in Zagreb after Major Earthquake

Buildings ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 508
Author(s):  
Mija Milić ◽  
Mislav Stepinac ◽  
Luka Lulić ◽  
Nataša Ivanišević ◽  
Ivan Matorić ◽  
...  
Keyword(s):  
Seismic Analysis ◽  
Human Life ◽  
Historical Background ◽  
Cultural Significance ◽  
In Situ Tests ◽  
Reliable Assessment ◽  
Heritage Protection ◽  
Observed Damage

Recently, Zagreb was struck by a strong earthquake. Damage throughout the city was tremendous due to numerous aged and vulnerable masonry buildings. Many damaged buildings are under a certain level of cultural heritage protection. Hence, reliable assessment and effective rehabilitation are important to preserve cultural significance and mitigate risk for human life. With that in mind, the procedure of a detailed condition assessment of the building under heritage protection is presented. A detailed historical background of the case study building is shown, and observed damage and conducted in situ tests are discussed. The nonlinear static seismic analysis performed in the 3Muri software is extensively elaborated. Four different levels of reconstruction according to new Croatian law are briefly presented. Additionally, several strengthening scenarios are proposed with various strengthening techniques.

Damage Assessment of Cultural Heritage Structures after the 2015 Gorkha, Nepal, Earthquake: A Case Study of Jagannath Temple

2017 ◽  
Vol 33 (1_suppl) ◽  
pp. 363-376 ◽  
Author(s):  
Sujan Shrestha ◽  
Bipin Shrestha ◽  
Manjip Shakya ◽  
Prem Nath Maskey
Keyword(s):  
Damage Assessment ◽  
Ambient Vibration ◽  
Kathmandu Valley ◽  
In Situ Tests ◽  
World Heritage Sites ◽  
Heritage Sites ◽  
Nepal Earthquake ◽  
Observed Damage

The Gorkha, Nepal, earthquake and the series of aftershocks that followed have damaged many heritage structures in and around Kathmandu Valley, including UNESCO World Heritage Sites (WHSs). This paper summarizes observed damage to the heritage structures of diverse typologies within the UNESCO WHSs of Kathmandu Valley. As a part of the investigation, inspection survey and damage assessment were carried out for Jagannath Temple, one of the partially damaged monuments in the Kathmandu Durbar Square WHS. Ambient vibration and in-situ tests using the pendulum hammer, the rebound hammer, and in-place push on masonry walls were performed. Finite-element models of the structure were developed, and the results were analyzed and compared with field observations. Based on the observed damages and the results obtained from numerical modeling, the primary causes of the damage are discussed.

Effects of corrosion on a steel bowstring bridge in marine environment: A case-study of assessment and retrofit

2021 ◽  
Vol 16 (4) ◽  
pp. 121-137
Author(s):  
Michele Fabio Granata
Keyword(s):  
Corrosion Protection ◽  
Marine Environment ◽  
Spray Coating ◽  
Thermal Spray Coating ◽  
In Situ Tests ◽  
Limit States ◽  
Intervention Measures ◽  
Near Future

The case-study of a steel bowstring bridge set in a marine environment and highly damaged by corrosion is presented. The bridge was built in 2004 and was repainted for corrosion protection in 2010. Despite the recent construction and the maintenance interventions, many structural elements like hangers are highly damaged by corrosion with decreasing performance in terms of serviceability and ultimate limit states. A deep investigation was carried out in order to assess the bridge and to establish the necessary retrofit actions to be carried out in the near future. In-situ tests reveal the reduced performance of the original steel in terms of strength and corrosion protection, together with the inefficiency of the successive maintenance interventions. The paper presents assessment of the bridge and retrofit measures, including replacement of the hangers and galvanization through thermal spray coating technology, in order to increase its service life. The results of the investigations and the intervention measures are outlined and discussed.

scholarly journals A virtual diorama. Mapping archives in situ at places of cultural significance

1970 ◽  
pp. 22-36
Author(s):  
Jonathan Westin ◽  
Gunnar Almevik
Keyword(s):  
Spatial Information ◽  
Three Dimensional ◽  
Physical Space ◽  
Cultural Significance ◽  
Dimensional Reconstruction ◽  
Historical Photographs ◽  
New Applications ◽  
Archive Material

Using the wooden church of Södra Råda as a case study, this article concerns new applications of technology to contextualise and activate archive material in situ at places of cultural significance. Using a combination of augmented reality and virtual reality, we describe a process of turning historical photographs and two-dimensional reconstruction drawings into three-dimensional virtual models that can be lined up to a physical space. The leading questions for our investigation concern how archive material can be contextualised, and how the result may be made accessible in situ and contribute to place development. The result of this research suggests possibilities for using historical photographs to faithfully reconstruct lost historical spaces as three-dimensional surfaces that contextualise documentation and offer spatial information.

scholarly journals In situ tests for water quality assessment: a case study in Pampean rivers

2002 ◽  
Vol 36 (16) ◽  
pp. 4033-4040 ◽  
Author(s):  
Manuel A.S Graça ◽  
Alberto Rodrı́gues-Capı́tulo ◽  
Carolina Ocón ◽  
Nora Gómez
Keyword(s):  
Water Quality ◽  
Quality Assessment ◽  
Water Quality Assessment ◽  
In Situ Tests

scholarly journals In Situ Tests—Predicted vs. Observed Settlements: A Comparative Case Study

2014 ◽  
Vol 8 (7) ◽  
Author(s):  
Neritan Shkodrani ◽  
Ergys Anamali ◽  
Luisa Dhimitri ◽  
Shpresa Gashi
Keyword(s):  
Comparative Case Study ◽  
In Situ Tests

scholarly journals Empirical Coastal Atmospheric Corrosion of Masonry Metal Wall Ties

2021 ◽  
Vol 2 (4) ◽  
pp. 657-665
Author(s):  
Igor A. Chaves ◽  
Sean de Prazer ◽  
Barbara Jardim do Nascimento ◽  
Gregory Flowers
Keyword(s):  
Human Life ◽  
Structural Response ◽  
Cost Effective ◽  
Field Trials ◽  
Masonry Buildings ◽  
Building Assessment ◽  
National Economies ◽  
Metal Wall

Not counting domestic dwellings, it has been estimated that in Australia alone, some tens of thousands of masonry buildings and structures have exceeded their design life, with many of these being at risk of partial (or worse) collapse from falling or dislodged masonry. This has significant implications for human life but also for the urban environment and economic health of building owners, managers, and insurers and for local and national economies. This risk can mainly be attributed to the slow deterioration of masonry under atmospheric and other environments and the corrosion of so-called wall ties. Wall ties are relatively thin pieces of steel that tie the outer leaf of masonry walls to the stabilized inner leaf. The problem is likely severe for scenarios such as cyclonic and earthquake events, as they cause area-wide damage and the potential wide-spread loss of human life—losses that could be prevented by timely intervention. This paper reports on the in situ inspection of two case study buildings and the data obtained from controlled wall tie corrosion field trials, which are used to develop predictive models of structural response. These models will inform practical tools that will be developed for building assessment, cost-effective monitoring, and rectification, assisting in the management of existing masonry buildings.

scholarly journals Assessment of human-induced vibrations of a cable-stayed footbridge

2018 ◽  
Vol 211 ◽  
pp. 09001 ◽  
Author(s):  
Izabela Drygała ◽  
Joanna M. Dulinska ◽  
Marek Wazowski
Keyword(s):  
Natural Frequencies ◽  
Dynamic Properties ◽  
Three Dimensional ◽  
Fe Model ◽  
In Situ Tests ◽  
Modal Assurance Criterion ◽  
Comfort Criteria ◽  
Abaqus Software

The primary purpose of this research is the evaluation of human-induced vibrations of a cable-stayed footbridge. The cable-stayed pedestrian bridge with total length of the span equal to 46.90 m located in Czestochowa (Southern Poland) was chosen as a case study. The footbridge consists of two spans (21.10 m and 25.80 m). A three-dimensional (3D) finite element (FE) model of the footbridge was prepared with the ABAQUS software program. The dynamic properties of the structure, i.e. its natural frequencies, modes shapes and damping ratios, were estimated on the basis of the in situ tests results as well as numerical analysis. For the validation of the modal models the modal assurance criterion (MAC) theory was applied. In the next stage of the investigation the dynamic response of the structure to human-induced loading was evaluated. Finally, the vibration comfort criteria for the footbridge were checked.

Case Study of Ground Fissures Generated by Liquefaction Following the Wenchan Earthquake

2012 ◽  
Vol 446-449 ◽  
pp. 12-15
Author(s):  
Fa Hai Yang ◽  
Wei Jun Liu ◽  
Xiao Ling Yang
Keyword(s):  
Uniform Distribution ◽  
Ground Surface ◽  
Earthquake Damage ◽  
In Situ Tests ◽  
Ground Failure ◽  
Ground Fissures ◽  
Wenchuan Ms8.0 Earthquake ◽  
Flat Ground

Ground failure caused by liquefaction is a major cause of earthquake damage and casualties during many history earthquakes. The gravels liquefaction extensively occurred following the 2008 Wenchuan Ms8.0 Earthquake, and 70-80% liquefied sites generated lots of 100 meter to hundreds kilometer long and 5 centimeter to 50 centimeter wide ground fissures, which intersected house, farmland, etc. and caused serous damage. The mechanism of the building damage and ground fissures were investigated by borehole drilling and Multi-Channels Electricity Resistance Test. The detailed in-situ tests and comparison show that: (1) The building, whose foundation intersected by liquefaction, suffered more severe damages than its surrounding buildings; (2) The abundant ground fissures were generated by gravels liquefaction rather than the raptures or secondary faults; (3)The fundamental conditions for the generation of ground fissures by liquefaction are: flat ground surface (slop less than 3%), horizontal non uniform distribution of liquefiable soils.

SenCity – Evaluating Users’ Experiences of Intelligent Lighting for Well-Being in Smart Cities

2018 ◽  
pp. 60-67
Author(s):  
Henrika Pihlajaniemi ◽  
Anna Luusua ◽  
Eveliina Juntunen
Keyword(s):  
Case Studies ◽  
Smart City ◽  
Smart Cities ◽  
Well Being ◽  
Evaluation Methods ◽  
Data Analyses ◽  
Sense Of Security ◽  
System Data

This paper presents the evaluation of usersХ experiences in three intelligent lighting pilots in Finland. Two of the case studies are related to the use of intelligent lighting in different kinds of traffic areas, having emphasis on aspects of visibility, traffic and movement safety, and sense of security. The last case study presents a more complex view to the experience of intelligent lighting in smart city contexts. The evaluation methods, tailored to each pilot context, include questionnaires, an urban dashboard, in-situ interviews and observations, evaluation probes, and system data analyses. The applicability of the selected and tested methods is discussed reflecting the process and achieved results.

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