STUDY ON SIMPLIFIED DESIGN METHOD OF ULTRA HIGH PERFORMANCE CONCRETE SLAB
To study the simplified design method of normal section bending of ultra high performance concrete (UHPC) slab, the constitutive relationship applicable to UHPC slabs was selected.The bending process of the slabs is simplified into three calculation stages: elastic stage, yield stage, and failure stage.The formulas bearing capacity is given for each stage.Based on these formulas, a simplified design method for the bending UHPC slabs is proposed, the graphic coefficient α and the height coefficient β of the whole process are given, and a simplified calculation formula for the elastic bending stiffness is given.The bending moment-curvature curves of the simplified calculation are compared with the existing experimental results.The results show that the tensile constitutive relation considering strain hardening is suitable for the bending design of UHPC slab.The simplified design method proposed in this paper can analyze the bending process of UHPC slab well.
Ultra-high performance concrete Slab Constitutive relationship Flexural bearing capacity Simplified design method
Ziruo Yu Boheng Wang Mingzhe An Bo Zhu
School of civil Engineering & Architecture.Beijing Jiaotong University, Beijing 100044,China
国际会议
福州
英文
273-281
2018-11-07（万方平台首次上网日期，不代表论文的发表时间）