UHPFRC-RC叠合板抗弯性能研究
发布时间：2018-07-14 16:30
【摘要】：超高性能纤维混凝土(ultra-high-performance fiber-reinforced concrete,英文简写:UHPFRC),其强度、耐久性及韧性等性能较高性能混凝土均大为提高。UHPFRC的结构设计理论及其应用方式已成为全球结构工程界研究的重要方向。UHPFRC的高性能为实现现有叠合板的轻质瘦身提供了可能。本文开展了 UHPFRC-RC (普通钢筋混凝土)叠合板的抗弯性能研究。本文采用数值模拟和结构试验的方法,研究了无筋UHPFRC-RC叠合板预制底板的抗弯性能。其试验结果与数值分析结果相互印证,验证了 UHPFRC底板数值分析模型的适用性。又通过理论推导和数值模拟的方法,分析了配筋UHPFRC-RC叠合板的抗弯性能。理论推导和数值模拟结果相互印证,验证了配筋UHPFRC-RC叠合板数值分析模型的适用性。用数值分析的方法,论证了 UHPFRC-RC叠合桥面板完全可以承担各施工阶段的荷载。其最大的特点是:作为永久模板的底板,其抗裂性好。
[Abstract]:Ultra-high-performance fiber-reinforced concrete (ultra-high-performance fiber-reinforced concrete), its strength, The structural design theory of UHPFRC and its application methods have become an important research direction in the field of global structural engineering. The high performance of UHPFRC provides the possibility for the realization of lightweight slimming of existing laminated panels. The flexural behavior of UHPFRC-RC (ordinary reinforced concrete) composite slab is studied in this paper. In this paper, numerical simulation and structural test are used to study the flexural behavior of prefabricated bottom plate of unstiffened UHPFRC-RC composite plate. The results of test and numerical analysis verify the applicability of UHPFRC bottom plate numerical analysis model. The flexural behavior of reinforced UHPFRC-RC composite plate is analyzed by theoretical derivation and numerical simulation. The theoretical derivation and numerical simulation results verify the applicability of the numerical analysis model of reinforced UHPFRC-RC composite plate. By means of numerical analysis, it is proved that the UHPFRC-RC composite deck slabs can bear the loads in every construction stage. Its biggest characteristic is: as a permanent template, its crack resistance is good.
【学位授予单位】：哈尔滨工程大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TU37
本文编号：2122246
[Abstract]:Ultra-high-performance fiber-reinforced concrete (ultra-high-performance fiber-reinforced concrete), its strength, The structural design theory of UHPFRC and its application methods have become an important research direction in the field of global structural engineering. The high performance of UHPFRC provides the possibility for the realization of lightweight slimming of existing laminated panels. The flexural behavior of UHPFRC-RC (ordinary reinforced concrete) composite slab is studied in this paper. In this paper, numerical simulation and structural test are used to study the flexural behavior of prefabricated bottom plate of unstiffened UHPFRC-RC composite plate. The results of test and numerical analysis verify the applicability of UHPFRC bottom plate numerical analysis model. The flexural behavior of reinforced UHPFRC-RC composite plate is analyzed by theoretical derivation and numerical simulation. The theoretical derivation and numerical simulation results verify the applicability of the numerical analysis model of reinforced UHPFRC-RC composite plate. By means of numerical analysis, it is proved that the UHPFRC-RC composite deck slabs can bear the loads in every construction stage. Its biggest characteristic is: as a permanent template, its crack resistance is good.
【学位授予单位】：哈尔滨工程大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TU37
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