Research Progress on Fire Safety Resilience of High Performance Concrete Structure(PDF)
《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]
- Issue:
- 2019年01期
- Page:
- 1-12
- Research Field:
- Publishing date:
Info
- Title:
- Research Progress on Fire Safety Resilience of High Performance Concrete Structure
- Author(s):
- XIAO Jian-zhuang; LIU Liang-lin; ZHANG Ze-jiang; PENG Gai-fei; LU Zhou-dao
- College of Civil Engineering, Tongji University
- Keywords:
- high performance concrete structure; fire damage; reparation and strengthening; fire safety resilience
- PACS:
- -
- DOI:
- -
- Abstract:
- The relevant research literatures on fire safety resilience of high performance concrete structures were collected and classified as three levels i.e., materials, components and structures, and the development context of fire safety was clarified. The analysis results show that according to fire safety reliability requirements for concrete structures, the performance of structure after being exposed to fire can be recovered and even being improved compared to the initial level by means of structural design, reparation and strengthening. The strength of high performance concrete can be recovered gradually and the size of crack in the concrete surface can be reduced by brushing or soaking reparation agent and water curing. The pH value of concrete can be recovered and the carbonation depth can be decreased by the electrochemical realkalization technique. The load bearing capacity of concrete components after fire can be recovered by carbon fiber reinforced polymer, but the stiffness is recovered a little. The load bearing capacity, stiffness and ductility of concrete components after fire are resilient by the bolted sideplating technique and bonding steel plate. All these measures of fire safety resilience for high performance concrete structures can be used to guide the design of practical engineering for disaster prevention and reduction.
Last Update: 2019-01-23