Punching shear performance of concrete slabs under fire
Punching shear performance of concrete slabs under fire
复制标题
火灾下混凝土板的冲剪性能
DOI:
10.1016/j.engstruct.2020.111094
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发表时间:
2020-12
影响因子:
5.5
通讯作者:
Lu Xin
中科院分区:
文献类型:
--
作者:
Wang Dongye;Dong Yuli;Zhang Dashan;Wang Weihua;Lu Xin
In this paper, three full-sized flat slabs measuring 4800 × 4000 × 200 mm3supported by a circular column stub were tested at ambient and elevated temperatures to investigate their punching shear performance. During the fire tests, three slabs were submitted to the ISO-834 curve for 180 min. Infrared detection and 3D scanning were utilized to record crack information and overall deformations. Furnace temperatures, temperature distributions, horizontal and vertical displacements, torque angles, residual ultimate punching loads, and punching shear taper angles were recorded and described in detail. A rigid-plastic model based on unified strength theory was used to calculate the effect of fire on the punching capacity of the flat slab. The calculated results fitted the test results well; thus, the rigid-plastic model can be used to predict the punching capacity of flat slabs.
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DOI:
--
发表时间:
2001
期刊:
Engineering mechanics
影响因子:
--
作者:
Shi Wei-fen
通讯作者:
Shi Wei-fen
DOI:
--
发表时间:
2002
期刊:
Engineering mechanics
影响因子:
--
作者:
Wei Xue-ying
通讯作者:
Wei Xue-ying
DOI:
10.1061/(asce)0733-9445(1986)112:12(2578
发表时间:
1986-12
期刊:
Journal of Structural Engineering-asce
影响因子:
--
作者:
D. Jiang;Jingsi Shen
通讯作者:
D. Jiang;Jingsi Shen
影响因子:
--
作者:
H. Salem;Heba M. Issa;H. Gheith;A. Farahat
通讯作者:
H. Salem;Heba M. Issa;H. Gheith;A. Farahat
DOI:
10.1007/978-3-642-18943-2
发表时间:
2004
期刊:
--
影响因子:
--
作者:
Mao-hong Yu
通讯作者:
Mao-hong Yu