以需求強度比值(DCR)探討RC建築物不同樓層位置的漸進式崩塌潛勢

Evaluation of the progressive collapse potential of an RC building frame subjected to different column-loss scenarios by using the demand-capacity ratio (DCR)

李志鵬(Chih-Peng Lee)

指導教授 ： 蔡孟豪 ； 盧俊愷

國立屏東科技大學/工學院/土木工程系所/碩士(2015年)

https://doi.org/10.6346/NPUST.2015.00192

摘要

摘要
學號：N9733004
論文名稱：以需求強度比值(DCR)探討RC建築物不同樓層位置的漸進式崩塌潛勢
總頁數：64
學校名稱：國立屏東科技大學
系(所)別：土木工程系
畢業時間及摘要別：一○三學年度第二學期碩士論文摘要
研究生：李志鵬 指導教授：蔡孟豪 博士 盧俊愷博士
論文摘要內容：
本研究係以UFC設計準則線性靜力分析方法，對一實際10樓RC建築物進行案例分析，藉由移除不同樓層與不同位置之支撐柱，檢視其梁端彎矩需求容量比(DCR)，探討其漸進式崩塌潛勢。分析時分別移除該結構第一、第二、第六及頂樓之角柱、長邊柱及短邊柱，並於各樓層施加垂直載重及長向側向力，分析其梁端彎矩及剪力DCR值。從初步分析結果發現該結構於移除長邊柱時，具有較高之漸進式崩塌潛勢，但整體而言仍屬低崩塌潛勢，而不至於產生大規模之破壞。
關鍵詞：線性靜力分析、需求容量比、漸進式崩塌

關鍵字

線性靜力分析 ； 需求容量比 ； 漸進式崩塌

並列摘要

Abstract
Student ID：N9733004 Total Pages：64
Title of Thesis：Evaluation of the progressive collapse potential of an RC building frame subjected to different column-loss scenarios by using the demand-capacity ratio (DCR)
Name of Institute：National Pingtung University of Science and Technology
Name of Department：Department of Civil Engineering
Date of Graduation：May, 2015 Degree Conferred：Master
Adviser： Tsai, Meng-Hao Lu, Jun-Kai
Name of Studennt：Lee, Chih-Peng
The Contents of Abstract in this Thesis：
Linear static analyses were conducted in this study to evaluate the progressive collapse potential of a ten-story RC building frame. The analysis procedure recommended in the UFC 4-023-03 design guidelines was adopted. The demand-to-capacity ratio (DCR) of beam-end moment was used to evaluate the collapse potential of the building frame. Three difference column-loss locations at each of the first, second, sixth, and top stories were considered in linear static analyses. The analysis results indicated that removal of the peripheral and penultimate column in the longitudinal direction led to highest progressive collapse potential for the RC building frame. Also, larger DCR ratios were obtained for the removal of a higher-story column, which indicated that higher stories were more vulnerable to partial collapse under column-loss conditions. Even though, the collapse risk of the building frame was low according to the acceptance criterion suggested in the UFC guidelines. This implied a seismically designed RC building frame may have superior collapse resistance against column loss.
Keywords:Linear static analysis, demand-to-capacity ratio, progressive collapse

並列關鍵字

Linear static analysis ； demand-to-capacity ratio ； progressive collapse

參考文獻

黃翠薔，2010，含牆RC構架喪失底層柱之彈塑性反應行為研究，碩士論文，國立屏東科技大學，土木工程研究所，屏東。

蔡孟豪，林秉輝，2009，「RC建築物之漸進式崩塌強度與動力放大因子分析」，中國土木水利工程學刊，第21卷，第1期，第461-471頁。

蔡孟豪，黃翠薔，2009，「內部隔間磚牆對RC建築物喪失底層柱之非彈性影響評估」，電子計算機於土木水利工程應用研討會。

ACI Committee 318, 2002, Building Code Requirement for Structure Concrete and Commentary, American Concrete Institute, Farmington Hills.

ASCE/SEI 7, 2005, Minimum Design Loads for Buildings and Other Structures, Structural Engineering Institute, American Society of Civil Engineers, Reston, VA.