建筑工程专业英语翻译,速度!prestressed concrete mild-steel bars are used in ordinary reinforced concrete beams to overcome the tensile weakness of concrete.another way of overcoming the weakness is by prestressing the contrete so as to ind

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建筑工程专业英语翻译,速度!prestressed concrete mild-steel bars are used in ordinary reinforced concrete beams to overcome the tensile weakness of concrete.another way of overcoming the weakness is by prestressing the contrete so as to ind

建筑工程专业英语翻译,速度!prestressed concrete mild-steel bars are used in ordinary reinforced concrete beams to overcome the tensile weakness of concrete.another way of overcoming the weakness is by prestressing the contrete so as to ind
建筑工程专业英语翻译,速度!
prestressed concrete
mild-steel bars are used in ordinary reinforced concrete beams to overcome the tensile weakness of concrete.another way of overcoming the weakness is by prestressing the contrete so as to induce in its conpression stresses before it is subject to the normal tensile stresses due to bending.when the beam is loaded and bending occurs,the bending tensile stress is neutralized by the prestressing compression so that no actual tensile stress develops.in this way the concrete is used more efficiently and no tensile cracks occur as they do in ordinary reinforced concrete.this principle is illustrated in Figure1.

建筑工程专业英语翻译,速度!prestressed concrete mild-steel bars are used in ordinary reinforced concrete beams to overcome the tensile weakness of concrete.another way of overcoming the weakness is by prestressing the contrete so as to ind
预应力钢筋混凝土
为克服混凝土拉力不足而采取的办法有,混凝土梁的加强钢筋通常采用半刚性钢材,另一种办法是采用预应力浇筑法,就是在混凝土受到张力（梁的底面受拉）变弯曲之前,给它加上挤压力,使得混凝土梁受力出现弯曲时,它的弯曲力被预应压力抵消,使得实际的弯曲拉力不再扩大,这种方法在混凝土预制中很有效,不会受拉出现裂纹,物理原理见图1所示

建筑工程专业英语翻译,速度!prestressed concrete mild-steel bars are used in ordinary reinforced concrete beams to overcome the tensile weakness of concrete.another way of overcoming the weakness is by prestressing the contrete so as to ind 英语翻译专业 建筑工程专业英语翻译,着急!OH- ion concentrations in the pore solution were determined by directtitration against nitric acid using phenolphthalein indicator. The pH valuesof the pore solution were calculated from the measured hydroxyl ion 建筑工程专业英语翻译 求高手!Corrosion Initiation TimeFig. 3 shows the half-cell potential measurement records of 14% C3Aplain cement concrete along with the 10% and 20% microsilica-blendedcement concretes. The specimens were partially im 英语翻译要专业的 英语翻译电子专业名次, 英语翻译专业点好吗 英语翻译不太专业！ 英语翻译翻译,专业点! 英语翻译求稍微专业一点~ 英语翻译我是生态学专业的~ 英语翻译求专业意大利翻译~ 英语翻译要专业一点的 英语翻译要专业的，建筑专业的朋友们请帮忙 建筑工程经济 I need a sweater for school汉语（速度速度,专业专业,十分钟内） 英语翻译求专业的翻译水准 英语翻译这两个哪个更专业啊