Experimental study on shear performance of stud shear connector after undergoing freeze-thaw cycles

被引：0

作者：

Li H. ^{[1
]}

Liu Y. ^{[1
]}

Zhang N. ^{[1
,2
]}

Liu J. ^{[1
]}

机构：

[1] School of Highway, Chang'an University, Xi'an

[2] College of Water Resources and Architectural Engineering, Northwest A&F University, Yangling

来源：

Jianzhu Jiegou Xuebao/Journal of Building Structures | 2019年 / 40卷 / 05期

关键词：

Freeze-thaw cycle; Push-out test; Shear performance; Stud shear connector;

D O I：

10.14006/j.jzjgxb.2019.05.015

中图分类号：

学科分类号：

摘要：

To study the effect of freeze-thaw cycles on the shear capacity of stud connectors, 12 specimens were made for push-out tests. The main test variable was the number of freeze-thaw cycles (0, 50, 100, 150 times). At the same time, prismatic and cube specimens were made to check the dynamic elastic modulus and the compressive strength of concrete. The test results show that the degradation of stud shear connectors and cubic concrete specimens are more serious with the larger number of freeze-thaw cycles; due to the increasing number of freeze-thaw cycles, the surface failures of concrete are more serious, meanwhile, the relative dynamic modulus of elasticity, compressive strength of concrete specimens, shear bearing capacity and shear stiffness decrease. When the number of freeze-thaw cycles is smaller than 50, their effects on the decrease of shear bearing capacity and shear stiffness are the largest. The effect of freeze-thaw cycles on the cracking load is found to be greater than that on the ultimate load. © 2019, Editorial Office of Journal of Building Structures. All right reserved.

引用

页码：149 / 155

页数：6

共 21 条

[1]

An L., Cederwal K., Push-out tests on studs in high strength and normal strength concrete, Journal of Construction Steel Research, 36, 1, pp. 15-29, (1996)

[2]

Ollgaard J.G., Slutter R.G., Fisher J.W., Shear strength of stud connectors in lightweight and normal weight concrete, Engineering Journal, 8, 2, pp. 55-64, (1971)

[3]

Ding M., Xue W., Wang H., Experiment on stud shear connectors in steel-high performance concrete composite beams, Industrial Construction, 37, 8, pp. 9-13, (2007)

[4]

Yang L., Experimental study and theoretical analysis for the freeze proof durability of concrete filled steel tube, (2008)

[5]

Yang Y., Cao K., Yang Z., Et al., Mechanical properties of concrete-filled steel tubular stubs after freezing and thawing cycles under axial loading, China Journal of Highway and Transport, 27, 3, pp. 51-58, (2014)

[6]

Yang Y., Cao K., Wang T., Experimental behavior of CFST stub columns after being exposed to freezing and thawing, Cold Regions Science and Technology, 89, pp. 7-21, (2013)

[7]

Chang H., Su X., Sha Y., Experimental research on compressive damage of concrete member under freeze-thaw cycles, Industrial Construction, 48, 3, pp. 26-30, (2018)

[8]

Wang Q., Zhang Y., Liu X., Et al., Experimental study on concrete short columns under axial compression in an environment of freeze-thaw cycles, Journal of Building Structures, 35, pp. 165-170, (2014)

[9]

Chen B., Chen J., Experimental studies on shear-bearing capacity of headed stud in concrete-filled steel tube, Engineering Mechanics, 33, 2, pp. 66-73, (2016)

[10]

Design of composite steel and concrete structures: part 1.1: general rules and rules for buildings: EN 1994-1-1: 2004, (2004)

← 1 2 3 →