摘要
火灾高温作用后 ,混凝土的抗压强度将发生变化。通过大量试验 ,研究了应用回弹和超声法评定火灾高温后考虑静置时间影响的混凝土抗压强度的方法 ,给出了高温后混凝土抗压强度与回弹值和超声波速的拟合回归公式。试验数据可作为编制《火灾后建筑结构可靠性鉴定标准》
Compression strength of concrete after high temperature in fire will be changed.Methods of rebound and ultrasonic were used to assess the compression strength considered the stewing time effect in many tests.Regressive equation was obtained about compression strength to rebound value and ultrasonic speed value.Data in these tests can provide a basis to establish the criterion of structure reliability assessment subjected to fire.
出处
《混凝土》
CAS
CSCD
2002年第8期21-23,32,共4页
Concrete
基金
中国工程建设标准化协会<火灾后建筑结构可靠性鉴定标准>编制基金资助 (98)建标协字第 0 8号 )
冶金部建筑研究总院科研基金资助 (990 2 4 )
