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    The numerical study shows that the loading-slip of loaded and free-end curve of specimens was in good agreement with the experimental results.
    结果对比研究表明,拉拔试件的荷载-加载端、自由端滑移曲线与试验曲线相比,两者吻合较好,且荷载-加载端滑移曲线与试验曲线的吻合程度比自由端要好.
    Based on tests of 33 pull out specimens and 27 beam specimens, bond properties of new type fiber reinforced polymer(FRP) bars in different materials (such as concrete C30, concrete C50 with and without polypropylene fibers, grade 42.5 mortars and epoxy resins) are systematically studied.
    基于33个拉拔试件和27个梁式试件的试验结果,对新型FRP筋与不同环境介质(包括混凝土C30、掺纤维与不掺纤维的混凝土C50、R42.5水泥浆以及环氧树脂等)之间的粘结性能进行了较为系统的研究。
    While under the same anchorage conditions, the ultimate tensile stress in adhesive reinforcement of beam is much smaller than the ultimate stress in pull-out test of block specimen.
    将植筋搭接梁的试验结果与块体试件植筋锚固单向拉拔试验的结果比较表明,在相同植筋条件下,梁式试件破坏时钢筋的应力远小于块体试件单向拉拔试件破坏时钢筋的应力。
    Based on tests of 48 pull-out specimens,bond properties of high performance CFRP strands in different mediums(including normal concrete C50,high performance concrete C50,grade 42.5 mortars and epoxy resins) are systematically studied.
    通过48个拉拔试件对高性能碳纤维增强塑料(CFRP)绞线筋与不同环境介质(包括普通混凝土C50、高性能混凝土C50、R42.5水泥浆以及环氧树脂等)之间的粘结性能进行了较为系统的研究。
    4. The pullout specimens of round steel bar, deformed steel bar and helical rib steel wire are tested under repeated loadings. The differences of bond failure between 3 various surface configurations of prestressed reinforcements and concrete are compared. The relationships between characteristic loads and maximum values of stress levels are obtained under constant amplitude repeated loading.
    4.通过光圆钢棒、异形钢棒和螺旋肋钢丝拉拔试件在重复荷载作用下的拔出试验,比较了3种不同外形高强预应力钢筋的粘结破坏特性的差异,并给出了3种高强预应力钢筋在等幅重复荷载作用下的特征荷载值与应力水平上限的关系式。
    The works presented in this paper can be divided into four parts:Part 1 48 pull-out specimens and 18 beam specimens are tested to study the bond and anchor behavior of GFRP rebars, including failure modes, bond strength, development length and bond-slip relationship.
    第一部分 基于18个梁式试件和48个拉拔试件的粘结试验,系统地研究了GFRP筋与混凝土之间的粘结锚固性能,包括破坏模式、粘结强度、锚固长度和粘结一滑移本构关系等。
    The enfluence of amount of crumb rubber, compressive strength of concrete, diameter of deformed bars and plain bars on bond behaviors is discussed and compared to plain concrete.
    通过对80个拉拔试件的研究,探讨了橡胶颗粒掺量、混凝土强度、钢筋外形和钢筋直径对于粘结锚固性能的影响,并与普通混凝土进行对比分析。
    in this paper, the bond-anchorage properties of deformed bars in concrete have been studied on the basis of the pull-out test of 144 specimens. By way of experimental statistical regression and comprehensive analysis, the calculating formula of bond-anchoring strength has been established. The design of anchoring length has been proposed through the reliability analysis.
    本文根据144个拉拔试件的试验结果,探讨了变形钢筋与陶粒混凝土的粘结锚固性能,在综合分析的基础上,通过试验统计回归建立了南粒混凝土粘结强度的计算公式,并通过可靠度分析给出了钢筋的设计锚固长度,可供修订《轻骨料混凝土结构设计规程》和工程设计时参考。
    Based on the test data of 60 pull-out speciments and 4 big post-tension PPCT shape beams,the authors in this paper study the bond-anchorage properties of the strand and strand bundle as well as the distribution patttern of the beam crack, and put forward the proposed value of the minimum steel content in PPC beam.
    本文通过60个拉拔试件和4根大型后张预应力混凝土T形梁的试验研究,探讨了钢绞线(束)粘结锚固性能及梁的裂缝分布的规律性; 提出了PPC梁中普通钢筋最小含量的建议值;
    A characteristic bond-slip(l-s)relationship is derived from the force-slip(P-S) curves of 56 pull-out specimens, and the experimental formulas are established to predict the characteristic anchorage- bond strength, which accounts for each anchorage situation.
    结合56个拉拔试件的荷载-滑移(P-S)曲线的分析,提出了特征粘结-滑移(τ-s)模式,统计回归出反映各种锚固条件的特征粘结强度公式。
    After analyzing both the reliability of pulling out bond specimens of 166 cold rolled and twisted bars and the testing results of anchoring 17 beams,the bond and anchorage lengh of bars and design suggestions are given out in this paper They provide theoretical and experimental data for compiling industrial standard“Specification of Concrete Structures with Cold rolled and Twisted Bars”
    通过对166个冷轧扭钢筋混凝土拉拔试件和17根梁粘结锚固试验结果的可靠度分析,得出了冷轧扭钢筋的基本锚固长度以及相应的设计建议,为编制行业标准《冷轧扭钢筋混凝土结构技术规程》提供了理论和试验依据,有关成果已被该《规程》采纳。
    Based on tests of 36 pull out specimens,behaviors of bond and anchorage between fiber reinforced plastics bars and different environmental media (concrete,cement grouting,epoxy resin) are studied systematically,and corresponding design suggestions are put forward.
    基于36 个拉拔试件的试验结果,对纤维塑料筋与不同的环境介质( 混凝土、水泥灌浆、环氧树脂) 之间的粘结锚固性能进行了较为系统的研究,并提出了有关的设计建议。
    In order to investigate the bond properties of FRP rebars to concrete,eighteen pullout specimens with the dimension of 1 200 mm×760 mm×400 mm and sixty four beam specimens of 1 260 mm×240 mm×150 mm were cast and tested. The extensive experimental results were obtained.
    通过 18根 12 0 0mm× 760mm× 40 0mm的混凝土拉拔试件和 64根 12 60mm× 2 40mm× 15 0mm的混凝土梁式试件的试验 ,研究了纤维聚合物筋与混凝土的粘结性能 ,获得了大量的试验结果。
    C. beam specimens that had been reinforced with bundled longitudinal steel bars were prepared and tested. The bond-anchorage characteristics and the major factors affecting the bond-anchorage properties of bundled steel bars in a R.
    根据 3 1个并筋粘结锚固拉拔试件验的结果 ,进行了 1 7根钢筋混凝土并筋梁的受力性能试验 ,较详细地讨论了并筋梁粘结锚固的特点以及影响并筋粘结锚固的主要因素 ,并与一般梁进行了对比 .
    Based on tests of 30 pull-out specimens, behaviors of bond and anchorage between carbon fiber reinforced plastics bars and different environmental media(concrete,epoxy resin,cement grouting) are studied systematically,and corresponding conclusions are put forward. The problems that merit attention are also pointed out.
    基于对 30个拉拔试件的试验结果 ,对碳纤维增强塑料筋在不同的环境介质 (混凝土、环氧树脂、素水泥浆 )中的粘结锚固性能进行了较为系统的研究 ,并得出了有关的结论 ,指出了需要注意的问题
    The experiment results showed that when the pulling size was about 2mm, the mould was suitable to measure the adhesive strength of the flame spraying polymer coatings.
    试验结果表明:所得实验值与理论分析相符,当拉拔试件活塞直径为2mm左右时,比较适合用于火焰喷涂聚合物涂层与基体的结合强度的测量。 证明这套模具在评价火焰喷涂聚合物涂层与基体结合强度方面有一定的实用价值。
 

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