JP4799492B2 - Rcスラブの耐火設計方法 - Google Patents
Rcスラブの耐火設計方法 Download PDFInfo
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- JP4799492B2 JP4799492B2 JP2007172507A JP2007172507A JP4799492B2 JP 4799492 B2 JP4799492 B2 JP 4799492B2 JP 2007172507 A JP2007172507 A JP 2007172507A JP 2007172507 A JP2007172507 A JP 2007172507A JP 4799492 B2 JP4799492 B2 JP 4799492B2
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Description
西村俊彦著、「梁・スラブの終局強度」、コンクリート系構造物の火災耐力シンポジウム、4-1−4-14、2004年1月
14 上端主筋(上端主筋)
16 下端主筋(下端主筋)
Claims (1)
- 下端主筋及び上端主筋を備えたRCスラブの耐火設計方法において、
加熱経過時間tfでの下端主筋の火災時曲げ耐力をMPD(tf)、加熱経過時間tfでの下端主筋温度をTD(tf)、加熱経過時間tfでの下端主筋強度をFD(TD(tf))、下端主筋の断面積をAD、RCスラブ上端から下端主筋の重心位置までの距離をDD、下端主筋の応力中心間距離設定係数をκDとして、MPD(tf)=κD×FD(TD(tf))×AD×DD を算出する下端主筋耐力算出工程と、
加熱経過時間tfでの上端主筋の火災時曲げ耐力をMPU(tf)、加熱経過時間tfでの上端主筋温度をTU(tf)、加熱経過時間tfでの上端主筋強度をFU(TU(tf))、上端主筋の断面積をAU、RCスラブ上端から上端主筋の重心位置までの距離をDU、上端主筋の応力中心間距離設定係数をκUとして、MPU(tf)=κU×FU(TU(tf))×AU×DU を算出する上端主筋耐力算出工程と、
加熱経過時間tfでの正曲げを受けるRCスラブ全体の火災時曲げ耐力MP(tf)を、MP(tf)=MPD(tf)+MPU(tf)とする主筋耐力算出工程と、
を有することを特徴とするRCスラブの耐火設計方法。
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JP2007172507A JP4799492B2 (ja) | 2007-06-29 | 2007-06-29 | Rcスラブの耐火設計方法 |
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JP2009007903A JP2009007903A (ja) | 2009-01-15 |
JP4799492B2 true JP4799492B2 (ja) | 2011-10-26 |
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Families Citing this family (2)
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KR101533891B1 (ko) * | 2013-12-03 | 2015-07-03 | 지에스칼텍스 주식회사 | 폴리아미드 수지의 제조방법 |
CN108061667B (zh) * | 2017-12-21 | 2023-05-05 | 华侨大学 | 一种组合楼盖抗火性能的测试装置实现方法 |
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JP2004132008A (ja) * | 2002-10-09 | 2004-04-30 | Nippon Kaiser Kk | スラブ設計手法及びスラブ |
JP3775395B2 (ja) * | 2003-03-14 | 2006-05-17 | 大成建設株式会社 | 合成ばりの設計方法 |
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