Featured Research

from universities, journals, and other organizations

Radar checks buildings after earthquakes

Date:
April 25, 2011
Source:
Inderscience
Summary:
Recent advances in ground-penetrating radar could be used to help structural engineers and conservationists assess the stability of historic buildings or buildings affected by earthquakes that otherwise appear sound.

Recent advances in ground-penetrating radar, GPR , could be used to help structural engineers and conservationists assess the stability of historic buildings or buildings affected by earthquakes that otherwise appear sound.

Writing in the International Journal of Materials and Structural Integrity, researchers in Italy explain how higher frequency antennae, bipolar antennae, positioning systems and 3D software work together to extend the potential of GPR for diagnostic applications to masonry structures. Luigia Binda and colleagues in the Department of Structural Engineering, at the Polytechnic of Milan, point out that preservation and rehabilitation of historic and other buildings can only be accomplished successfully if a careful diagnosis of the state of any structural damage has been carried out.

GPR is commonly used for geological surveys and scientific research allowing voids and cracks to be detected in rock, soil and ice. Previous researchers had suggested that it could be used to assess a building's structural integrity. However, until now the technology has not been adequate for the more detailed needs of such work. The authors have now tested modern GPR in assessing numerous buildings across Italy and have demonstrated that it is possible to locate the position of large voids and inclusions of different materials, like steel and wood, to qualify the state of conservation or damage of the walls and to define the presence and the level of moisture. GPR can also now reveal the morphology of wall sections in multiply layered stone and brick masonry structures and to detect hidden cracks or discontinuities in walls. Critically, it can also verify the effectiveness of repairs.

The team concedes that much work remains to be done in developing GPR for assessing historic and earthquake-damaged buildings. However, in combination with various other techniques, including optical boroscopy, flat-jack, sonic tests, and thermography it can provide a much-needed and far clearer picture of building stability than was previously possible.


Story Source:

The above story is based on materials provided by Inderscience. Note: Materials may be edited for content and length.


Journal Reference:

  1. Luigia Binda, Maurizio Lualdi, Antonella Saisi and Luigi Zanzi. Radar investigation as a complementary tool for the diagnosis of historic masonry buildings. International Journal of Materials and Structural Integrity, 2011; 5 (1)

Cite This Page:

Inderscience. "Radar checks buildings after earthquakes." ScienceDaily. ScienceDaily, 25 April 2011. <www.sciencedaily.com/releases/2011/04/110425081305.htm>.
Inderscience. (2011, April 25). Radar checks buildings after earthquakes. ScienceDaily. Retrieved April 24, 2014 from www.sciencedaily.com/releases/2011/04/110425081305.htm
Inderscience. "Radar checks buildings after earthquakes." ScienceDaily. www.sciencedaily.com/releases/2011/04/110425081305.htm (accessed April 24, 2014).

Share This



More Matter & Energy News

Thursday, April 24, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

UN Joint Mission Starts Removing Landmines in Cyprus

UN Joint Mission Starts Removing Landmines in Cyprus

AFP (Apr. 23, 2014) The UN mission in Cyprus (UNFICYP) led a mine clearance demonstration on Wednesday in the UN-controlled buffer zone where demining operations are being conducted near the Cypriot village of Mammari. Duration: 01:00 Video provided by AFP
Powered by NewsLook.com
Air Force: $4.2B Saved from Grounding A-10s

Air Force: $4.2B Saved from Grounding A-10s

AP (Apr. 23, 2014) Speaking about the future of the United States Air Force, Chief of Staff Gen. Mark Welsh says the choice to divest the A-10 fleet was logical and least impactful. (April 23) Video provided by AP
Powered by NewsLook.com
Jets Fuel Jump in Boeing's Revenue

Jets Fuel Jump in Boeing's Revenue

Reuters - Business Video Online (Apr. 23, 2014) A sharp rise in revenue for commercial jets offset a decline in Boeing's defense business. And a big increase in deliveries lifted profitability. Fred Katayama reports. Video provided by Reuters
Powered by NewsLook.com
Is North Korea Planning Nuclear Test #4?

Is North Korea Planning Nuclear Test #4?

Newsy (Apr. 22, 2014) South Korean officials say North Korea is preparing to conduct another nuclear test, but is Pyongyang just bluffing this time? Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins