UC知道土木工程 论文翻译 恳请高手帮忙
来源：百度知道 编辑：UC知道 时间：2024/06/01 13:13:01
The definition of PPR is given as
PPR=
where fpy and fy are the tensile strength of the prestressing tendon and the reinforcement bar (MPa). Ap and Ay are the area of the prestressing tendon and the reinforcing bar, respectively (mm2). For the fully prestressed concrete, the value of PPR equals 1.0, and for the partially prestressed concrete, this value will be less than 1.0. Three pairs of test beams with different values of PPR are designed, in which one pair of test beams is fully prestressed, and the other two are partially prestressed. To simulate the practical behaviors of the continuous beam in bridge engineering, the cracking load and the PPR of the mid-support section are higher than those of the mid-span section. In each pair of test beams, one beam is cast with the high strength concrete completely, and for the other one the steel fiber reinforced concrete with fiber volume fraction of 1% is used in the intermediate support zone (2.6 m around the inter
PPR=
where fpy and fy are the tensile strength of the prestressing tendon and the reinforcement bar (MPa). Ap and Ay are the area of the prestressing tendon and the reinforcing bar, respectively (mm2). For the fully prestressed concrete, the value of PPR equals 1.0, and for the partially prestressed concrete, this value will be less than 1.0. Three pairs of test beams with different values of PPR are designed, in which one pair of test beams is fully prestressed, and the other two are partially prestressed. To simulate the practical behaviors of the continuous beam in bridge engineering, the cracking load and the PPR of the mid-support section are higher than those of the mid-span section. In each pair of test beams, one beam is cast with the high strength concrete completely, and for the other one the steel fiber reinforced concrete with fiber volume fraction of 1% is used in the intermediate support zone (2.6 m around the inter
翻译如下：
投影寻踪回归的定义给出投影寻踪回归=
在fpy和风云的拉伸强度预应力筋和钢筋（精神创伤和痛苦） 。哎是AP和地区的预应力筋和钢筋，分别为（平方毫米） 。为充分预应力混凝土，其价值相当于1.0投影寻踪回归，并为部分预应力混凝土，这个值将低于1.0 。三对试验梁的不同价值观的投影寻踪回归的设计，其中一双测试完全预应力梁，和其他两个部分预应力。模拟实际行为的连续梁在桥梁工程中的开裂荷载和投影寻踪回归中期支持节高于中跨部分。在每一对试验梁，梁是一个演员的高强度混凝土完全，和其他之一的钢纤维混凝土与纤维体积分数为1 ％是用于中间支持区（二点六米围绕中间支援组） 。为了方便起见，每个光束指定相结合的文字和数字，例如， H100 ， F90等 第一个字母H或F是用来区分的梁构造的高强度混凝土完全或钢纤维高强混凝土部分。下面的数字， 100 ， 90 ，或80 ，显示投影寻踪回归支持的中间一节中的一个不可分割的形式，这意味着PPRs是100 ％ ， 90 ％和80 ％ 。的细节测试梁列于表3和图。 2 。筋的后张和停泊在具体年龄28天。该地区的每肌腱一百四十零平方毫米和拉应力是1350兆帕。在钢筋笼包括轻度钢带6.5毫米， 70毫米的空间，提供足够的剪切强度，以确保弯曲破坏。详情梁试验中显示图。 1 。在一开始，加载试验束约10千牛，然后卸载。此后，负载应用逐渐由一个伺服控制液压驱动器。安排应变计的章节的C1 - C7处理器还提供了图。 1 。此外，株钢筋中期跨度和支持的中间一节还测量。的挠度中跨测量数字仪表与精密的0.01毫米。支持反应记录负荷传感器。的外观和裂缝的发展，是仔细观察，标志着在每个荷载增量。