碳纤维布抗弯加固混凝土梁的非膨胀型防火涂料厚度.docx

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1、碳纤维布抗弯加固混凝土梁的非膨胀型防火涂料厚度耐火极限(h)(mm)0.50.550.60.6250.650.6750.70.7250.750.7750.81.00.1150000078131824292000000077111622250000000771015300000000007935000000000070.21500007813192430372()0000077121722282500000077111621300000000771015350000000007940000000000070.31500078131925313744200000771217222935250000

2、077111621273000000077101520350000000071014400000000007945000000000770.41500771318243137442000077111723293541250000071016212733300000007101520263500000007IO152040000000007914450000000077101.50.115071824313846200011172330364325007111622283542493000071016222834414835000071016222734404000007711162227334

3、50000077111622270.21501224313846200717233037442500101622293542503000710162228354249350007111622283441484000077111622283441耐火极限(h)f(mm)xs0.50.550.60.6250.650.6750.70.7250.750.7750.8450000771217232834().3157173138462001023293644250716222935435030001016222835424935007IO162228354148400007111622283541484

4、5000771217232935410.4151022374520715283643250921283542503007152128344149350091521283441484000710162228344148450007111722293542482.00.1151731472010233745257162937443001023293644350717233037444007121724303744450071318243138450.215233820163045259223744307162937443501023303744400717243037454507121825313

5、8450.3152945202136251528443()9223644357162936444001123303745450718243138450.4153520274325203430142743一耐火极限(h)f(mm)xs0.50.550.60.6250.650.6750.70.7250.750.7750.83582135434071629364445O1123303745注:表中成为常温下加固梁跨中受弯承我力相比于非加固梁的提高百分比;C为纵筋的混凝土保护层厚度；M为高温下按简支梁计算的梁跨中组合弯矩；MU为常温下加固梁的跨中受弯承载力：“一”表示在该条件下使用当前防火措施无法实现规定的耐火极限要求。