Prestressing members . stress corrosion test in distilled water 预应力构件.蒸馏水中应力腐蚀试验
Test of mechanism of effect by polypropylene fibre on anti - crevice property amp; amp; normal section load - bearing capacity of bent reinforced concrete components 轴向力对预应力构件正截面影响的研究
The detailed discussions were focused on the prestress construction , especially on the protection measures against erosion 对无粘结预应力施工进行了详细的论述,并着重论述了预应力构件的防腐保护措施。
Requirements for the installation of post - tensioning kits for prestressing of structures and qualification of the specialist company and its personnel 专家组及其个人的资格评定和预应力构件用后加应力装备的安装要求
According to different working performance ofjhe partially prestressed structure after cracking under the piling loads , the calculating formulae of the " complete stress " are deduced separately by means of linear - elastic or nonlinear analysis method 根据部分预应力构件在荷载分期作用下不同的受力性能,分别用线弹性方法和非线性分析方法推导了预应力构件开裂截面全应力的计算公式。
The model was built up according to transmission heat subject of temperature field in prestress concrete members , and analyzed the regulation of difference in temperature , divided different in temperature into transverse difference in temperature and lengthways difference in temperature , and gave some formulas 借助于传热学,建立预应力构件内部温度场的计算模型。并在此基础上,分析温差分布规律,将计算温差的分解为横向温差和纵向温差,并提出相应的计算公式。