重复荷载

This paper studied the fatigue properties of the plain concrete under constant amplitude flexural cyclic loading.

在室内混凝土试件弯曲疲劳试验的基础上，研究了素混凝土受弯试件在等幅重复荷载作用下的弯曲疲劳性能。

A loading cycle consisting of a haversine load followed by a rest period was adopted to simulate the actual vehicle loading on asphalt pavement, and a viscoelastic-damage mechanics model was deduced for permanent deformation of asphalt mixture under repeated load.

再采用半正矢波间歇荷载模拟实际路面轮载作用，推导了重复荷载作用下沥青混合料永久变形的弹黏塑性损伤力学模型。

E0 value is generally obtained by conducting repeated load tri-axial tests in laboratory or bearing plate test; automated dynamic cone penetrometer in situ etc. because of the complexities encountered with.the above tests.

土基回弹模量是路面设计的重要参数，实验室内测定土基回弹模量的方法为重复荷载三轴试验，野外测试的方法有承载板、动态锥等方法，上述方法操作起来都比较复杂。

Resilient modulus (E0) is an important parameter for pavement design. E0 value is generally obtained by conducting repeated load tri-axial tests in laboratory or bearing plate test; automated dynamic cone penetrometer in situ etc. because of the complexities encountered with the above tests.

中文摘要：土基回弹模量是路面设计的重要参数，实验室内测定土基回弹模量的方法为重复荷载三轴试验，野外测试的方法有承载板、动态锥等方法，上述方法操作起来都比较复杂。

The effects of temperatures on tensile fatigue strength, stiffness, and deformation of concrete are studied.

3进行了高温下混凝土在等幅重复荷载作用下的抗拉疲劳性能试验。

However, during borehole grouting pile construction of the present, round section piles are used universally. Generally speaking, the boreholes are drilled by a large diameter round piling bit. Because of the restriction of factors of the mud pumps, and drilling equipments, and drilling technique, it would result in such problems as fol lowing: a bigger cutting area and overlarge cuttings volume, and more hole bottom sediments, difficult cuttings discharging, and serverely repeat cuttings breaking, and using more concret grouting amount, and lower drilling speed, faster bit wearing, and longer working period, bigger material and labor ex haust, and higher engineering cost, unreasonable ratio of loading capacity to volume of pile foundation, and lower comprehensive economic benefits, and so forth.

然而，钻孔灌注桩施工中，目前最为普遍采用的是圆形断面桩基，一般采用大口径圆形基桩工程钻头，由于国内生产的泥浆泵、钻具及钻进方法等因素的限制，从而使钻孔破岩面积和体积过大，造成孔底沉渣过多，排渣困难且排浆量大，重复破碎问题突出，混凝土灌注量大，直接反映为钻进效率低、钻头磨损快、施工工期长、材料能耗和劳动消耗大、工程成本较高、桩基荷载能力与体积比不合理、综合经济效益不理想等，这些问题严重影响和制约着钻孔灌注桩施工技术的发展和进步。

Based on this,it takes the actual bridge test of stress powdered coal ash high-functioned concrete pile,and offers foundations for the application of stress powdered coal ash high-functioned concrete on railway bridge and choice of designing p.

研究了粉煤灰高性能混凝土梁在重复荷载作用下的力学性能，并探讨了粉煤灰掺量(0%~40%)、混凝土标号(C50~C80)及养护条件等因素对预应力粉煤灰高性能混凝土梁力学性能的影响，在此基础上进行了预应力粉煤灰高性能混凝土梁的实桥测试，为粉煤灰高性能混凝土在铁路桥梁上的应用及设计参数的选取提供了依据。

It is showed that pile with branches and plates could be used in bridge engineering under repeated load .

研究表明，支盘桩应用于桥梁等承受重复荷载的结构是可行的。

Based on Tseng-Lytton evaluation model for permanent deformation, and evaluation model for permanent deformation of clayed subgrade soils is established by improving and calibrating Tseng-Lytton model.

利用室内重复荷载三轴试验，研究了在含水量、压实度和偏应力影响下粘性路基土的永久变形特性，并以Tseng-Lytton路基土永久变形预估模型形式为基础，对Tseng-Lytton模型进行了改进和标定，建立了粘性路基土的永久变形预估模型；最后利用分层应变总和法，并结合一个典型粒料柔性基层沥青路面结构实例，计算了路基土的永久变形量。

A theoretical model was developed based on the relation between hysteresis coefficient of strain in the steel and degradation of bond strength, for the load bearing capacity of corroded RC beams. The model reflects the mechanical characteristics and failure mechanism of the beam under static and repeated loading.

通过研究腐蚀梁中钢筋应变滞后系数与粘结强度退化比的关系，建立静荷载和重复荷载下与腐蚀梁的受力特征和破坏机理相一致的承载力计算模型。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。