National Institute of Building Sciences’ Post

* Performance-Based Earthquake Design of Buildings and Structures:(30pages):

* Performance-Based Earthquake Design of Buildings and Structures:(30pages):

Shake-table test of a six-story hybrid mass timber structure with a well-designed braced frame (as an alternative to post-tensioned rocking walls) It's a 400% scaled-up simulation of the Loma Prieta earthquake, representing the building code's Maximum Considered Earthquake (USA). The Loma Prieta earthquake was a major earthquake that struck the San Francisco Bay Area of California in 1989. Caused by a slip along the San Andreas Fault, the quake lasted 10–15 seconds and measured 6.9 on the Richter Scale. Adequate building codes and earthquake design technology differentiate between a city left rubble or not. - Credit: Simpson Strong-Tie https://buff.ly/43GutZf

Seismic design in Australia: Are you complying with the National Construction Code and Earthquake Standard? Earthquakes with a magnitude of 5.0 or higher, such as the 1989 earthquake in Newcastle, which resulted in the tragic deaths of 13 people and saw more than 160 people injured, occur every one to two years. Considering the potential risks associated with seismic activity, all buildings need an assessment of their seismic design requirements.  https://lnkd.in/gkP4haMX

How to Engineer Buildings That Withstand #earthquakes ? What happens to a building during a quake? Why might a #building fail even if it is built to earthquake codes? Check here for more: https://bit.ly/3m78EQX #sdgs #city #urbansustainability #engineering

As understood, earthquake is a rare event so for regions where frequency or numbers are less, its logical to follow the current practices as we may get time to fix the structure before the next event. However, if the number of shocks being experienced by the buildings are more than one or after/fore shocks are also more then the structural design is considered separately as the energy dissipation in each shock will be difficult to estimate. Our buildings can safely stand for at-least one major shock before failure if designed adequately. Re-occupancy requires structural adequacy check. Design for multiple events require cost and severity / hazard estimation only can help to balance it.

How do water dampers fight earthquakes? You won't believe this, folks! Buildings can actually use water to combat earthquake damage! Yes, you read that right! 🔹I'm talking about water dampers - an ingenious engineering solution. 🔹Picture this: Large tanks of water, strategically placed at the top of skyscrapers. 🔹But here's the fascinating part - they're not there for aesthetics or utilities! 🔹When an earthquake strikes, these tanks transform into dynamic stabilizers. 🔹The water moves in opposition to the building's motion, counteracting seismic forces. 🔹It's like the building is performing a controlled dance, with water as its partner! 🔸Interestingly, some structures even utilize their fire suppression water for this dual purpose. 🔸These water dampers aren't just a clever design feature. 🔸They're crucial in preserving structural integrity and safeguarding lives. ▫️ Next time you admire a skyscraper, consider its hidden earthquake defense mechanism! ▫️Who knew seismic protection could be so... fluid? It's a testament to innovative engineering in our ever-evolving urban landscapes. 🏢 video credit:- matpicardal #earthquake #building #engineering #technology #waterdamper #structuralengineer #people #usa #africa #europe #aisa #india #linkedin

[NEW PAPER] “Generalised Storey Loss Functions for Seismic Loss Assessment of Italian Residential Buildings” has been published on Journal of Earthquake Engineering (https://lnkd.in/dbvkXuaE) With a view to providing general Storey Loss Functions (SLFs) for existing reinforced concrete (RC) residential buildings in Italy, this paper layouts the procedure and the development of SLFs for different residential building typologies, using post-earthquake observational damage data of the 2009 L’Aquila earthquake. The outcomes denote how the proposed SLFs can be a useful tool as an alternative to the simplified conservative loss assessment guidelines (Sismabonus) currently employed in Italy, with a view to planning risk mitigation measurements both at a regional and single-building level.   Research group: Gianrocco Mucedero, Daniele Perrone and Prof. Ricardo Monteiro. #seismicassessment #rcbuildings #uncertainty #ExistingRCbuildings #residentialbuilding #lossassessment #buildingportfolios #riskmitigationmeasurements

Sustainable Vertical Earthquake Strengthening - Kürberg, Zürich (CH) Project: The Kürberg housing complex consists of a continuous underground parking garage and three apartment buildings. The structural analysis showed that the earthquake resistance was insufficient. Solution: The masonry walls were strengthened with post-tensioned CFRP plates (CarboStress®) to restore earthquake resistance. The plates cover the full height of the building and are anchored in the basement garage deck slab. The fixed end anchors are located on the roofs of the buildings. The post-tensioning force is introduced into the deck slab via a steel component. The tensioned end is in the underground parking garage. 20 CarboStress® systems were applied for the three buildings Would you like additional information? Please contact us: stresshead@stresshead.ch / +41 41 210 40 30

【What the latest earthquake reveals about architectural safety in Japan】 For the most seismically active nation in the world, each disaster is a hard lesson in how architecture should perform. The latest quake which happened on New Year’s Day will be no exception. Despite the natural disaster’s seismic statistics, however, the casualties reported are far fewer than comparable examples around the globe like Turkey’s 7.8-magnitude earthquake in February 2023, which claimed over 50,000 lives. Much of that is due to Japan’s architecture. In consideration for the frequent quakes that occur in the nation, where four tectonic plates meet, Japan has adjusted its standards for structural engineering and strictly enforces them, turning past disasters into hard lessons for a safer future. More in the article. https://lnkd.in/gqd6SybA #japanrealestate #japaninvestment