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为了研究玄武岩纤维筋(BFRP)加强的连续配筋混凝土路面(CRCP)的力学性质,在结合已有的试验研究结果的基础上,采用ABAQUS建立了有限元分析模型,系统地分析了裂缝宽度、BFRP弹性模量、配筋率和板底脱空对混凝土路面结构的受力情况和传荷能力的影响。研究表明,配BFRP筋与配普通钢筋的混凝土路面相比,裂缝间距、宽度以及横向拉应力均增大;裂缝宽度和板底脱空对路面结构的受力状态和传荷能力影响显著,裂缝宽度超过1.1 mm时,板间传荷基本靠筋材起作用,混凝土传荷能力消失;筋材的模量和配筋率对BFRP-CRCP的传荷能力和力学响应影响并不明显,通过提高筋材的模量和配筋率来增大传荷系数不经济。
In order to study the mechanical properties of continuous reinforced concrete pavement (CRCP) reinforced with basalt fiber reinforced (BFRP) beams, a finite element analysis model was established by ABAQUS based on the experimental results. The fracture width, Influence of BFRP Elastic Modulus, Reinforcement Rate and Bottom Cavity on Mechanical Behavior and Load Transfer Capability of Concrete Pavement Structure. The results show that the crack spacing, width and transverse tensile stress increase with BFRP tendons and ordinary reinforced concrete pavements. Crack width and bottom void have significant influence on the stress state and load carrying capacity of pavement structures. Cracks When the width is more than 1.1 mm, the load transfer between plates is basically influenced by the reinforcement material, and the load carrying capacity of concrete disappears. The modulus and reinforcement ratio of the reinforcement material have no obvious effect on the transfer capacity and mechanical response of BFRP-CRCP. Modulus of reinforcement and reinforcement ratio to increase the transfer coefficient is not economical.