Tài liệu Phân tích ứng xử xoắn của ống thép nhồi bê tông tiết diện tròn có xét đến khuyết tật

ĈҤ,+Ӑ&48Ӕ&*,$73+&0 75ѬӠ1*ĈҤ,+Ӑ&%È&+.+2$ 1*8<ӈ1/Ç9Ӻ 3+Æ17Ë&+Ӭ1*;Ӱ;2Ҳ1&Ӫ$Ӕ1*7+e31+Ӗ,%Ç 7Ð1*7,ӂ7',ӊ175Ñ1&Ï;e7Ĉӂ1.+8<ӂ77Ұ7 Chuyên ngành: .ӻWKXұW[k\GӵQJ&{QJWUuQKJLDRWK{QJ Mã Vӕ: 8 58 02 05 /8Ұ19Ă17+Ҥ&6Ƭ TP. +Ӗ&+Í MINH, tháng 08 QăP21 &Ð1*75Î1+ĈѬӦ&+2¬17+¬1+7Ҥ,: 75ѬӠ1*ĈҤ,+Ӑ&%È&+.+2$ ĈҤ,+Ӑ&48Ӕ&*,$73+Ӗ&+Ë0,1+ *** &iQEӝKѭӟQJGүQNKRDKӑF76/Ç%È.+È1+ &iQEӝFKҩPQKұQ[pW 761JX\ӉQ'X\/LrP &iQEӝFKҩPQKұQ[pW 76/r9ăQ3K~F /XұQ YăQ WKҥF Vƭ ÿѭӧF EҧR YӋ WҥL 7UѭӡQJ ĈҥL KӑF %iFK .KRD Ĉ+4* Tp. HCM ngày 21 tháng 08 QăP21 WUӵFWX\ӃQ. 7KjQKSKҫQ+ӝLÿӗQJÿiQKJLiOXұQYăQWKҥFVƭJӗP 1. &KӫWӏFKKӝLÿӗQJ: 3*6761JX\ӉQ0ҥQK7XҩQ 2. 7KѭNêKӝLÿӗQJ: 761JX\ӉQ;XkQ/RQJ 3. UӹYLrQSKҧQELӋQ: 761JX\ӉQ'X\/LrP 4. UӹYLrQ pKҧQELӋQ: 76/r9ăQ Phúc 5. 8ӹYLrQKӝLÿӗQJ: TS. Lê Bá Khánh ;iF QKұQ FӫD &Kӫ WӏFK +ӝL ÿӗQJ ÿiQK JLi /9 Yj 7UѭӣQJ .KRD TXҧQ Oê FKX\rQ QJjQKVDXNKLOXұQYăQÿmÿѭӧFVӱDFKӳDQӃXFy. &+Ӫ7ӎ&++Ӝ,ĈӖ1* 75ѬӢ1*.+2$ .Ӻ7+8Ұ7;Æ<'Ӵ1* ±i± ĈҤ,+Ӑ&48Ӕ&*,$73+&0 &Ӝ1*+Ñ$ ;­+Ӝ,&+Ӫ1*+Ƭ$9,ӊ71$0 75ѬӠ1*ĈҤ,+Ӑ&%È&+.+2$ ĈӝFOұS- 7ӵGR- +ҥQKSK~F -------------------- -------------------- NHIӊM VӨ LUҰ19Ă17+Ҥ&6Ƭ +ӑWrQKӑFYLrQ1*8<ӈ1 /Ç9Ӻ................................................. MSHV: 1970085 1Jj\WKiQJQăPVLQK12/06/1996 .............................................. 1ѫLVLQK Kon Tum Chuyên nJjQK.ӻWKXұW[k\GӵQJ&{QJWUuQKJLDRWK{QJ ............ 0mVӕ : 8 58 02 05 I. 7Ç1Ĉӄ7¬, 3KkQ WtFK ӭQJ [ӱ [RҳQ FӫD ӕQJ WKpS QKӗL Er W{QJ WLӃW GLӋQ WUzQ Fy [pW ÿӃQ ҧQK KѭӣQJFӫDNKX\ӃWWұW (Torsional behavior analysis of circular concrete filled steel tubes on the effect of defects). 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HV: 1JX\ӉQ/r9ӻ MSHV: 1970085 ±v± ABSTRACT With the advancement of science and technology today, detailed analysis of the interaction between materials is no longer a barrier to creating structures that ensure both resistance, economy and highly aesthetic. Based on Abaqus software, with the features of solving linear and nonlinear problems related to statics, dynamics, thermodynamics, etc., this thesis analyzee the torsional behavior of concrete-filled steel pipes. Concrete Filled Steel Tubes ± (CFST) has considered the effect of corrosion defect on steel pipe, penetrating the Shell. The theoretical analysis and finite element analysis on Abaqus software, the model has been verified for its correctness by re-simulating the CFST studies of author Jehyun Beck and Osamu Kiyomiya [2], the results have a high concordance. The thesis has developed a series of studies on the behavior of corrosion defects on CFST structures through changing the size of defects. Based on previously established and recognized research results (model of concrete materials, steel materials, interaction coefficient between concrete core and steel pipe, ...), CFST structure with large defect size used to investigate torsional resistance and evaluate results. 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