PMID- 36432978
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20221213
IS  - 2073-4360 (Electronic)
IS  - 2073-4360 (Linking)
VI  - 14
IP  - 22
DP  - 2022 Nov 11
TI  - Reliability-Based Design Analysis for FRP Reinforced Compression Yield Beams.
LID - 10.3390/polym14224846 [doi]
LID - 4846
AB  - Fiber-reinforced polymers (FRPs) provide promising prospects for replacing steel 
      bars in traditional reinforced concrete structures. However, the use of FRP as 
      tension bars in concrete beams leads to insufficient ductility because of its 
      elastic characteristics. A newly developed compression-yielding (CY) beam has 
      successfully solved this issue. Instead of tensile reinforcement yield, the 
      ductile deformation of a CY beam is realized by the compression yield of a CY 
      block in the compressive region. Another important feature is that the CY block 
      is also the fuse of the beam, where material damage to the beam is concentrated 
      in the CY block region and can be easily replaced. As a load-bearing recoverable 
      and ductile structure, it is necessary to conduct a reliability-based design 
      analysis and recommend reduction factors for this new structure. In this study, 
      the function for calculating the failure probability of CY beams is proposed, 
      semi-probabilistic design recommendations are presented, and Monte Carlo 
      simulation (MCS) is adopted as a reliability analysis method. This study 
      discusses the influence of the possible characteristics of the critical variables 
      on reliability and provides the reliability index with different reduction 
      factors to guide the design of the CY beam. These analyses indicate that the 
      reliability index can be improved from the material design of the CY block in 
      greater strength f(b), smaller depth, smaller coefficient of variation of f(b), 
      and yield modulus ratio xi. This study also shows that compared with the design of 
      FRP concrete beams, the ductile failure mode of the CY beams allows a lower 
      safety factor to meet safety requirements, which significantly reduces 
      construction costs and avoids over-designing the load-bearing capacity.
FAU - Feng, Lin
AU  - Feng L
AD  - College of Civil and Transportation Engineering, Shenzhen University, Shenzhen 
      518060, China.
AD  - Guangdong Provincial Key Laboratory of Durability for Marine Civil Engineering, 
      Shenzhen University, Shenzhen 518060, China.
FAU - Li, Peng-Da
AU  - Li PD
AUID- ORCID: 0000-0003-0933-7526
AD  - College of Civil and Transportation Engineering, Shenzhen University, Shenzhen 
      518060, China.
AD  - Guangdong Provincial Key Laboratory of Durability for Marine Civil Engineering, 
      Shenzhen University, Shenzhen 518060, China.
FAU - Huang, Xiao-Xu
AU  - Huang XX
AD  - College of Civil and Transportation Engineering, Shenzhen University, Shenzhen 
      518060, China.
AD  - Guangdong Provincial Key Laboratory of Durability for Marine Civil Engineering, 
      Shenzhen University, Shenzhen 518060, China.
FAU - Wu, Yu-Fei
AU  - Wu YF
AUID- ORCID: 0000-0002-3970-3999
AD  - College of Civil and Transportation Engineering, Shenzhen University, Shenzhen 
      518060, China.
AD  - Guangdong Provincial Key Laboratory of Durability for Marine Civil Engineering, 
      Shenzhen University, Shenzhen 518060, China.
AD  - School of Engineering, RMIT University, 376-392 Swanston St, Melbourne, VIC 3001, 
      Australia.
LA  - eng
GR  - 52078299/National Natural Science Foundation of China/
GR  - 2020A1515011552/Guangdong Basic and Applied Basic Research Fund Project/
GR  - KQTD20200820113004005/Shenzhen Science and Technology Program/
GR  - 20200807104705001/Shenzhen Science and Technology Program/
PT  - Journal Article
DEP - 20221111
PL  - Switzerland
TA  - Polymers (Basel)
JT  - Polymers
JID - 101545357
PMC - PMC9699639
OTO - NOTNLM
OT  - FRP-reinforced concrete
OT  - Monte Carlo simulation
OT  - beams
OT  - compression yielding
OT  - ductility
OT  - reliability analysis
COIS- The authors declare no conflict of interest.
EDAT- 2022/11/27 06:00
MHDA- 2022/11/27 06:01
PMCR- 2022/11/11
CRDT- 2022/11/26 01:33
PHST- 2022/09/21 00:00 [received]
PHST- 2022/10/26 00:00 [revised]
PHST- 2022/11/07 00:00 [accepted]
PHST- 2022/11/26 01:33 [entrez]
PHST- 2022/11/27 06:00 [pubmed]
PHST- 2022/11/27 06:01 [medline]
PHST- 2022/11/11 00:00 [pmc-release]
AID - polym14224846 [pii]
AID - polymers-14-04846 [pii]
AID - 10.3390/polym14224846 [doi]
PST - epublish
SO  - Polymers (Basel). 2022 Nov 11;14(22):4846. doi: 10.3390/polym14224846.