https://scholars.lib.ntu.edu.tw/handle/123456789/597887
標題: | Seismic performance of precast hollow-core floors: Part 2-assessment of existing buildings | 作者: | Puranam A.Y Corney S.R Elwood K.J Henry R.S Bull D. AISHWARYA YERRAPOTU PURANAM |
關鍵字: | Floor diaphragm;Hollow-core floors;Precast concrete;Seismic assessment;Buildings;Earthquakes;Floors;Risk assessment;Building stocks;Connection details;Ductile failures;Floor diaphragms;Hollow core floors;In-buildings;New zealand;Pre-cast;Seismic Performance | 公開日期: | 2021 | 卷: | 118 | 期: | 5 | 起(迄)頁: | 65-77 | 來源出版物: | ACI Structural Journal | 摘要: | Past research has indicated that precast concrete hollow-core floors in buildings are susceptible to non-ductile failure modes when subjected to earthquake deformations. While this research has led to the development of more robust connection details suitable for hollow-core floors in new buildings, the existing building stock with hollow-core floors in New Zealand is still at risk and needs to be assessed. Damage to buildings containing hollow-core floors in Wellington, New Zealand, during the 2016 Kaikoura Earthquake prompted the need to better understand the behavior of hollow-core floors and enable those with limited drift capacity to be retrofitted or replaced. Based on tests described in a companion paper, models are developed for three potential failure modes: Loss of seating (LoS), positive moment failure (PMF), and negative moment failure (NMF). Implementation of these models in the New Zealand Seismic Assessment Guidelines is discussed. Applying the Guidelines to a database of 112 existing buildings with hollow-core floor units in Wellington indicates that the most likely mode of failure is loss of seating. ? 2021, American Concrete Institute. |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85116833992&doi=10.14359%2f51732822&partnerID=40&md5=ceba939461b5334e5c2391c469bee3c5 https://scholars.lib.ntu.edu.tw/handle/123456789/597887 |
ISSN: | 08893241 | DOI: | 10.14359/51732822 |
顯示於: | 土木工程學系 |
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