Strong-motion characteristics and visual damage assessment around seismic stations in Kathmandu after the 2015 Gorkha, Nepal, earthquake
A rapid visual damage assessment of buildings around four strong-motion seismic stations in Kathmandu Valley was carried out after the damaging Gorkha, Nepal earthquake (Mw7.8) of 25 April 2015. The waveforms of the main shock recorded at these stations were compared with the damage to buildings aro...
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| Veröffentlicht in: | Earthquake spectra 2017-12, Vol.33 (1_suppl), p.219-242 |
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| container_issue | 1_suppl |
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| container_title | Earthquake spectra |
| container_volume | 33 |
| creator | Bijukchhen, Subeg Takai, Nobuo Shigefuji, Michiko Ichiyanagi, Masayoshi Sasatani, Tsutomu |
| description | A rapid visual damage assessment of buildings around four strong-motion seismic stations in Kathmandu Valley was carried out after the damaging Gorkha, Nepal earthquake (Mw7.8) of 25 April 2015. The waveforms of the main shock recorded at these stations were compared with the damage to buildings around the stations. The damage was found to be related to strong-motion characteristics of the earthquake. A dominance of long-period oscillation could be observed in the records. The damage to low-rise buildings in the valley was less than anticipated from an earthquake of this magnitude given that the majority of buildings were built without proper engineering consideration. The acceleration response spectra of one of the sedimentary sites show high response in the 1-2 s period range, and nearly 10% of the buildings, which were all low-rise, suffered damage around this site. |
| doi_str_mv | 10.1193/042916eqs074m |
| format | Article |
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The waveforms of the main shock recorded at these stations were compared with the damage to buildings around the stations. The damage was found to be related to strong-motion characteristics of the earthquake. A dominance of long-period oscillation could be observed in the records. The damage to low-rise buildings in the valley was less than anticipated from an earthquake of this magnitude given that the majority of buildings were built without proper engineering consideration. 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The waveforms of the main shock recorded at these stations were compared with the damage to buildings around the stations. The damage was found to be related to strong-motion characteristics of the earthquake. A dominance of long-period oscillation could be observed in the records. The damage to low-rise buildings in the valley was less than anticipated from an earthquake of this magnitude given that the majority of buildings were built without proper engineering consideration. The acceleration response spectra of one of the sedimentary sites show high response in the 1-2 s period range, and nearly 10% of the buildings, which were all low-rise, suffered damage around this site.</description><subject>Asia</subject><subject>building codes</subject><subject>buildings</subject><subject>concrete</subject><subject>construction</subject><subject>construction materials</subject><subject>damage</subject><subject>earthquakes</subject><subject>Engineering geology</subject><subject>engineering properties</subject><subject>Gorkha earthquake 2015</subject><subject>ground motion</subject><subject>Indian Peninsula</subject><subject>Kathmandu Valley</subject><subject>Kirtipur Nepal</subject><subject>main shocks</subject><subject>Nepal</subject><subject>reinforced materials</subject><subject>seismic networks</subject><subject>Seismology</subject><subject>strong motion</subject><subject>structures</subject><issn>8755-2930</issn><issn>1944-8201</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2017</creationdate><recordtype>article</recordtype><recordid>eNp1kE9v1DAQxS0EEkvhyN1naGD8bzc-ogoKomoPlHM0ccYbt5u49TggvgEfu6kWCXHgNIf3e09vnhCvFbxTypv3YLVXW7pn2Nnpidgob23TalBPxabdOddob-C5eMF8A6C2FmAjfn-rJc_7Zso15VmGEQuGSiVxTYElzoP8kXjBgxxwwj1JZCbmieYqseRl1ZkSTylIrviYwTLN8ivWcVrNi8S4psk6klyLOHmey-2Ip_KS7vBwKglLHe8XvKWX4lnEA9OrP_dEfP_08frsc3Nxdf7l7MNFg7aF2gzG2AC98jo46oNrW4jaBK8cROt33pCNYBz0bW9D3yIGijr6bfTo3HYYzIlojrmhZOZCsbsracLyq1PQPc7Y_TPjyr858rx-393kpcxrvf_Cb4_wnjKHRHOgn7kchr8-DVp1sNNKg3kAWBqFCg</recordid><startdate>201712</startdate><enddate>201712</enddate><creator>Bijukchhen, Subeg</creator><creator>Takai, Nobuo</creator><creator>Shigefuji, Michiko</creator><creator>Ichiyanagi, Masayoshi</creator><creator>Sasatani, Tsutomu</creator><general>Earthquake Engineering Research Institute</general><general>SAGE Publications</general><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>201712</creationdate><title>Strong-motion characteristics and visual damage assessment around seismic stations in Kathmandu after the 2015 Gorkha, Nepal, earthquake</title><author>Bijukchhen, Subeg ; Takai, Nobuo ; Shigefuji, Michiko ; Ichiyanagi, Masayoshi ; Sasatani, Tsutomu</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a480t-d334c0b192c5ebc5880f23c9150f49793e4f0350b8b4cb8aacef2f96f9a556dd3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2017</creationdate><topic>Asia</topic><topic>building codes</topic><topic>buildings</topic><topic>concrete</topic><topic>construction</topic><topic>construction materials</topic><topic>damage</topic><topic>earthquakes</topic><topic>Engineering geology</topic><topic>engineering properties</topic><topic>Gorkha earthquake 2015</topic><topic>ground motion</topic><topic>Indian Peninsula</topic><topic>Kathmandu Valley</topic><topic>Kirtipur Nepal</topic><topic>main shocks</topic><topic>Nepal</topic><topic>reinforced materials</topic><topic>seismic networks</topic><topic>Seismology</topic><topic>strong motion</topic><topic>structures</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Bijukchhen, Subeg</creatorcontrib><creatorcontrib>Takai, Nobuo</creatorcontrib><creatorcontrib>Shigefuji, Michiko</creatorcontrib><creatorcontrib>Ichiyanagi, Masayoshi</creatorcontrib><creatorcontrib>Sasatani, Tsutomu</creatorcontrib><collection>CrossRef</collection><jtitle>Earthquake spectra</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Bijukchhen, Subeg</au><au>Takai, Nobuo</au><au>Shigefuji, Michiko</au><au>Ichiyanagi, Masayoshi</au><au>Sasatani, Tsutomu</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Strong-motion characteristics and visual damage assessment around seismic stations in Kathmandu after the 2015 Gorkha, Nepal, earthquake</atitle><jtitle>Earthquake spectra</jtitle><date>2017-12</date><risdate>2017</risdate><volume>33</volume><issue>1_suppl</issue><spage>219</spage><epage>242</epage><pages>219-242</pages><issn>8755-2930</issn><eissn>1944-8201</eissn><abstract>A rapid visual damage assessment of buildings around four strong-motion seismic stations in Kathmandu Valley was carried out after the damaging Gorkha, Nepal earthquake (Mw7.8) of 25 April 2015. The waveforms of the main shock recorded at these stations were compared with the damage to buildings around the stations. The damage was found to be related to strong-motion characteristics of the earthquake. A dominance of long-period oscillation could be observed in the records. The damage to low-rise buildings in the valley was less than anticipated from an earthquake of this magnitude given that the majority of buildings were built without proper engineering consideration. The acceleration response spectra of one of the sedimentary sites show high response in the 1-2 s period range, and nearly 10% of the buildings, which were all low-rise, suffered damage around this site.</abstract><cop>London, England</cop><pub>Earthquake Engineering Research Institute</pub><doi>10.1193/042916eqs074m</doi><tpages>24</tpages><oa>free_for_read</oa></addata></record> |
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| ispartof | Earthquake spectra, 2017-12, Vol.33 (1_suppl), p.219-242 |
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| language | eng |
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| source | SAGE Publications |
| subjects | Asia building codes buildings concrete construction construction materials damage earthquakes Engineering geology engineering properties Gorkha earthquake 2015 ground motion Indian Peninsula Kathmandu Valley Kirtipur Nepal main shocks Nepal reinforced materials seismic networks Seismology strong motion structures |
| title | Strong-motion characteristics and visual damage assessment around seismic stations in Kathmandu after the 2015 Gorkha, Nepal, earthquake |
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