| 1. | The experiment scheme has first proposed an idea to strengthen rc beams using hybrid frp sheet , which comes from cfrp sheet and afrp sheet 其次,本文还进行了11根纤维布加固混凝土梁的抗弯试验研究,第一次采用了碳纤维布、芳纶纤维布混杂加固方案。 |
| 2. | This paper deals with the application of afrp for shear and seismic strengthening for brick masonry walls and investigates the shear and seismic mechanism of the brick masonry walls 本文主要对芳纶纤维加固砖砌体的受剪和抗震性能进行了试验研究,分析了芳纶纤维加固砖砌体的受剪破坏机理。 |
| 3. | In this paper , basic mechanics performances of cfrp and afrp ( aramid fiber reinforced plastic ) are analyzed contrastively by using finite element method ( fem ) and experimental method 本论文采用有限元分析和试验研究相结合的方法,对碳纤维布、芳纶纤维布加固混凝土梁进行了基本力学性能的对比分析。 |
| 4. | As a new material used to reinforce structures , aramid fiber reinforced polymer ( afrp ) has excellent mechanic prospect , which satisfied the qualification for using widely in the field of civil engineering 芳纶纤维作为一种新型的加固材料,其优异的材料力学性能,为其在土木工程领域中的广泛应用提供了条件。 |
| 5. | According to the cyclic reverse loading test of two brick masonry walls without reinforement and four pieces of brick masonry walls reinforced with afrp , the cracking load , the ultimate load , the ductility factor and the rate of crack propagation were compared each other 本文共进行了六片砖砌体的抗震性能试验研究,对比了无筋砖砌体和芳纶纤维加固后砖砌体的开裂荷载、极限荷载、延性以及裂缝开展情况的异同。 |
| 6. | Based on the research and analysis of the result of the experiment , this paper defines and studies the coefficient and coefficient and gives out the method of calculation of them . based on the research , this paper develops a calculation method of shear strength of brick masonry walls reinforced with afrp , the result of the calculation fits the result of the experiment well , it may refered to and used in design 在分析芳纶纤维加固后砖砌体在竖向及水平反复荷载作用下墙体破坏机理的基础上,提出了芳纶纤维加固砖砌体的受剪承载力设计计算公式,其计算结果与试验结果吻合较好,可供工程设计参考使用。 |
| 7. | Based on the test of the flexural performance of reinforced concrete beams strengthened with aramid fiber reinforced plastics ( afrp ) and reference beams , this paper analyzes the failure process and characteristics of the strengthened beams and factors that affect the failure of the strengthened beams 摘要本文根据芳纶纤维加固钢筋混凝土梁和未加固的混凝土参考梁的抗弯性能静载试验研究,分析了芳纶纤维加固钢筋混凝土受弯构件的破坏过程,研究了加固后钢筋混凝土受弯构件正截面的破坏特征、受力特点及影响因素(粘贴层数和配筋率) 。 |
| 8. | The fatigue test results illustrate that the bonded afrp can improve the fatigue performance of the strengthened beams , enhance the service life of the reinforced concrete structures , which testified the validity and feasibility of this technology in the field of structure strengthening 试验表明:采用芳纶纤维进行加固后,钢筋混凝土梁的抗弯、抗裂疲劳性能得到了极大改善,损伤混凝土结构的使用寿命得到有效延长,从而验证了芳纶纤维加固钢筋混凝土结构的有效性和可行性。 |
| 9. | Based on the fatigue test for flexural performance of reinforced concrete beam strengthened with aramid fiber reinforced plastic ( afrp ) , the effect of fiber layers on the fatigue test performance of the strengthened beam was analyzed according to the strain cycling curve of steel and the stiffness reduction regularity of the beams 摘要通过芳纶纤维加固钢筋混凝土梁的疲劳试验,得到了钢筋的应变滞回曲线和加固构件的抗弯刚度随循环次数衰减的规律,探讨了芳纶纤维布层数对加固构件疲劳性能的影响。 |