Cao Dafu, Zhou Min, Ge Wenjie, Yuan Shenfeng. STUDY OF THE SHEAR BEHAVIORS OF RC BEAMS AFTER FREEZE-THAW CYCLES[J]. INDUSTRIAL CONSTRUCTION, 2015, 45(2): 32-37. doi: 10.13204/j.gyjz201502008
Citation:
Cao Dafu, Zhou Min, Ge Wenjie, Yuan Shenfeng. STUDY OF THE SHEAR BEHAVIORS OF RC BEAMS AFTER FREEZE-THAW CYCLES[J]. INDUSTRIAL CONSTRUCTION, 2015, 45(2): 32-37. doi: 10.13204/j.gyjz201502008
Cao Dafu, Zhou Min, Ge Wenjie, Yuan Shenfeng. STUDY OF THE SHEAR BEHAVIORS OF RC BEAMS AFTER FREEZE-THAW CYCLES[J]. INDUSTRIAL CONSTRUCTION, 2015, 45(2): 32-37. doi: 10.13204/j.gyjz201502008
Citation:
Cao Dafu, Zhou Min, Ge Wenjie, Yuan Shenfeng. STUDY OF THE SHEAR BEHAVIORS OF RC BEAMS AFTER FREEZE-THAW CYCLES[J]. INDUSTRIAL CONSTRUCTION, 2015, 45(2): 32-37. doi: 10.13204/j.gyjz201502008
In order to investigate the shear behaviors of RC beams after freeze-thaw cycles，compressive strength test of concrete cubes after 0，75，100，125，150 freeze-thaw cycles were made，and static shear experiment of 45 RC beams after 0，75，100，125，150 freeze-thaw cycles were also made． The relationships of relative compressive strength of concrete，mass loss rates，relative dynamic modulus of elasticity and freeze-thaw cycles were analyzed． The influences of different numbers of freeze-thaw cycles on the shear behaviors of RC beams with different stirrup spacing were studied． The results showed that concrete cubesmass，relative dynamic modulus of elasticity， relative compressive strength and relative tensile strength were decreased with the increasing of freeze-thaw cycles． Cracking loading and ultimate loading of shear beams were decreased with the increasing of freeze-thaw cycles． Current concrete structure design code about ultimate loading of shear beams is still suitable for RC beams after freeze-thaw cycles．
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