Our Mission

From and For Engineers

WHY WE CARE?


Engineers, today, have to fulfill different and often intersecting requirements. Regarding design they have to comply with strict and complex regulations while they have to use complicated and demanding software and often solely carry the responsibility for anything that may go bad.

They also seek simplicity and clarity in complicated frameworks. Nowadays, they have to develop their so called engineering judgement solely through the repetitive use of analysis software. We think that in this new era of digital transformation, engineers have much more training equipment, this being the IoT ecosystem that can be put in their disposal. Models can be tested and updated, global and local features can be measured continuously. The end result being smarter, safer and more sustainable built environment.

Structural engineers are not recognized as much as they ought to be. They should be praised for what they do, That is saving lives, protecting property, preserving the past and building the future. They are often the “unseen” heroes behind the architects and the constructors. 

“We believe that structural engineers can use new and exciting technology and can come again at the center of attention.”

Case Study


When structural problems occurred in a famous heritage tower, some stones start falling from many meters above.


A group of engineers gathered together to see how they will proceed with the assessment and design of interventions for the tower.


This tower was more than 200 hundred years old with many interventions happening every 30 – 50 years, and no one was exactly sure what was the real extent of the problem


The structural engineer that called us had set up detailed finite element models with tremendous precision in the geometry as it was obtained with laser scanner technology for the whole building. He also did numerous stress and other tests but still wasn’t sure as the interventions were hidden and in numerous parts of the structure.


With OMAway solution he used 16 channels and recorded the full dynamic behaviour of the tower with Operational Modal Analysis. He managed to verify his models after appropriate corrections. He went a step further and installed permanently an OMAway accelerograph on the tower and recorded a quite strong earthquake and showed that his predictions were correct. He got great attention from the local community and made the people feel safe again while restoring the old heritage tower in the most appropriate way.

OUR MISSION


OUR VISION

01

In the peak of digital transformation that we experience, we believe that structural health monitoring of civil infrastructure and earthquake monitoring should become more accessible and practical. 

02

We believe that 99% of earthquake catastrophes and casualties can be prevented. We are here to help improve the numbers with the aid of technology.

OUR BELIEF

01

Seamlessly easy to use, cost-effective sensors and software for structural health monitoring are possible and available.

02

Application of our technology can solve fast and reliable problems, previously complicated to be solved.

03

For smarter, safer and more sustainable cities, IoT ecosystem has still much more to give

OUR VALUES

01

Our products are not specialized equipment for the privileged few but tools accessible to many. 

02

We preserve high standards in our products, striving for technical excellence but also for simplicity and interoperability.

03

Unlike other companies we are open to discussion regarding interpretation of SHM results in an engineering framework

SOME OF OUR PROJECT’S


OPERATIONAL MODAL ANALYSIS OF AGIOS MINAS BELL TOWERS & MAIN CHURCH

OPERATIONAL MODAL ANALYSIS OF TØNSBERG TOWER IN NORWAY

DYNAMIC FEATURE EXTRACTION OF THE HISTORIC BRIDGE SIMA IN CRETE

HOTEL BUILDING IN ATHENS, GREECE

PERMANENT ONLINE ACCELEROGRAPH ON AGIOS MINAS CHURCH

OPERATIONAL MODAL ANALYSIS OF OFFICE BUILDING IN ATHENS GREECE

CASE STUDIES

Amir S.

Researcher, Norway

1. What was the project(s) that you used our accelerographs and software for Operational Modal Analysis on?

Our group is working as the leader of work package 5 of the HYPERION project. HYPERION is a 4-year EC Funded project that has received funding from the European Union’s Horizon 2020 research and innovation program. The main focus of the project is to assess the vulnerability of the historic area subjected to different types of risks and investigate their impact on economies, politics, and societies to deliver an integrated resilience assessment platform. In the link below, you can find more about the project: https://www.hyperion-project.eu/

2. Why did you want to use this solution apart from the classical engineering approach?

Since destructive tests for investigating the material properties of cultural heritage assets is impossible, nondestructive solutions should be utilized. For this purpose, the operational modal analysis is employed for model updating the assets to provide a robust finite element model.

3. What surprised you after using it?

Since destructive tests for investigating the material properties of cultural heritage assets is impossible, nondestructive solutions should be utilized. For this purpose, the operational modal analysis is employed for model updating the assets to provide a robust finite element model.

4. How easy was to install the sensors, extract the data and do post processing to obtain Operational Modal Analysis results?

Installation of the sensors is effortless and does not any special equipment, and it can be done with glue and steel plates as the sensors’ bases. Moreover, the Unquake software is friendly to perform the initial analysis to have an overview of the test in the most efficient way.

5. What’s the No. 1 reason you would recommend our solution?

The first customers are always the losers! We also expect problems with the sensors and bugs for the software, and we also face these problems. But if I want to be honest, we could not feel them due to the best customer service of the company. I really appreciate all the supports and helps that we had during our project from the company employees. They were on time for answering the questions and helpful for solving the problems, and we could reach them even by phone easily during the day.

CASE STUDIES

ARIS X

Structural Engineer, Greece

1. What was the project(s) that you used our accelerographs and software for Operational Modal Analysis on?

The accelerographs were used for the operation modal analysis of the following projects:

  • A-Structural Assessment and Restoration of an early 20th century three-span stone bridge, named the Bridge of Sima. The bridge is located on the regional road network of the Municipality of Rethymno, Crete, Greece.
  • B-Structural Assessment and Rehabilitation of the City Hall of Rethymno, Crete, Greece. The building ‘s structural system is made of reinforced concrete.
  • C-Structural Assessment and Restoration of the 19th century stone Lighthouse of the Venetian Harbour in the Old Town of Rethymno Crete, Greece.
2. Why did you want to use this solution apart from the classical engineering approach?

For projects A and C the solution of Operation Modal Analysis was selected because it is considered as, probably, the only reliable method for extracting the dynamic characteristics of a masonry structure. Destructive and medium destructive technics like core sampling and rebound test, give an evaluation of the mechanical properties of masonry ‘s stone and mortar. But the behavior of masonry as a homogenous material cannot be extracted. Therefore, the Operational Modal Analysis gave an approximation of the real vibration frequencies of the structure. Those data were used for the calibration of a finite element model created, comparing calculated and measured frequencies.Regarding project B, although the concrete ‘s characteristics are more easily to be estimated, the Operational Modal Analysis made possible to evaluate all the factors that influence the dynamic response of the building, such as the influence of the infill masonry. Although concrete acts as a homogenous material, much more comparing to masonry, it was observed a wide variation of the finite element model frequencies compared to the measured ones. That proved the necessity of reliable estimation of the dynamic behavior, even in the cases of more “common” structural systems.

3. What objection or doubt did you have about this solution before using it?

There was a concern regarding the sensitivity of the acceleographs. Meaning whether they would be able to isolate the dominant frequencies, in case of vibration form factors, other than ambient viabration. Nevertheless, even in the case of the stone bridge, the acceleographs were able to distinguish the ambient vibration from the external factors (car traffic vibrations)

4. What surprised you after using it?

It was surprisingly easy to install the sensors and process the data even in the case of multiple accelerographs installation.

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Phone

+30 2130302740

Email

info@unquake.co

Address

Structures and Sensors P.C

Kifisias Ave. 125-127, 11524 Athens, Greece

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