| 1. | The optimal design method of the girder with unilateral reinforcing steel bar
单筋梁的经济设计法 |
| 2. | Mono - vein safety helmet with a long visor , usually for worksor middle - level leaders on constructions sites
单筋式长帽舌安全帽，多用于工地中层领导及工人佩带。 |
| 3. | Abstract : this article analyses and compares the methods to designing steel areas for perpendichlar cross section of single steel rectangle cross section in water conservancy structure and in industry and civil structure , a new method to fast designing is presented
文摘:通过水工结构与工民建结构单筋矩形截面正截面配筋设计的分析与比较，提出一种水工结构单筋矩形截面正截面配筋的快速设计方法 |
| 4. | According to the basic theory of the cement concrete and the properties of polypropylene fiber , the calculating formulas about beam for the normal section load _ carrying capacity and rigidity and ductibility are presented based on " the design code of concrete structure " ( gb50010 - 2002 )
参照普通砼的基本理论，结合聚丙烯纤维砼的性能特点，在《规范》的基础上得到了单筋矩形截面梁正截面承载力、刚度和延性的计算公式，并与试验结果对比吻合较好。 |
| 5. | The objective function is the cost of anti - slide pile " s per meter ; the constraint conditions are the strength of anti - slide pile " s normal section and inclined section , the ratio of reinforcing design and the size of section in the design code ; the design variables are the height of section , the area of reinforcement and the amount of hoop . and the optimization model is solved by 0 . 618 method
本文提出的优化设计方法，以桩单位长度的总造价为目标函数，以规范对单筋梁的正、斜截面强度，配筋率及截面尺寸等要求为约束条件，以桩截面高度，抗弯纵筋面积，抗剪箍筋数量等为设计变量，来建立优化模型，并用0 . 618法进行求解。 |
| 6. | At first , the experiment carried out by tianjin university has been analysed according to the " nonlinear balance trying calculation " method , and the values of yield load and ultimate load agree with the test result better , and the curve of bending moment - curvature , bending moment - deflection can agree with the results . the second , the simplified formula for evaluation the ultimate flexural capacity of cfrp strengthened rc members is presented according to the three probable failure modes ( compression failure ; cfrp rupture ; crushing of the concrete in compression before yielding of the reinforcing steel ) . it is applicable to both singly and doubly reinforced rectangular sections , as well as flanged sections
首先利用钢筋混凝土非线性平衡试算法对天津大学试验进行了理论分析，所得分析值与试验结果相比，加固梁的屈服荷载、极限荷载能够很好地吻合，弯矩曲率关系曲线及弯矩挠度关系曲线较为吻合；其次，为了满足实际工程的需要，根据碳纤维布加固构件可能发生的三种破坏形态(压区混凝土压碎破坏、碳纤维布拉断破坏以及受拉钢筋尚未屈服时压区混凝土已压碎破坏) ，区别三种钢筋混凝土构件截面形式(单筋矩形截面、双筋矩形截面、 t形截面) ，分别给出了碳纤维布加固混凝土构件抗弯承载力的简化计算公式和适用条件，并进一步探讨了这三种截面形式下进行加固设计和复核的步骤。 |
| 7. | Vibration response distributions of single ring stiffened cylindrical shell and multi - ring stiffened cylindrical shell are studied . the simulation results calculations of vibration level and radiated power level are gotten , about the single - ring stiffened cylindrical shell with average distribution force exciting along its one end
对单筋圆柱壳体在一端受均布力作用下的表面振级和声辐射功率级进行了仿真计算，分析了加筋处理对圆柱壳体振动和声辐射的影响。 |
| 8. | The effects to beam for its normal section flexural capacity and rigidity and ductibility as well as other properties is discussed with different polypropylene fiber and different concrete strength by the bending test study herein on the reinforced concrete beams and the polypropylene fiber reinforced beams
本文通过对掺聚丙烯纤维砼配筋梁的试验研究，分析讨论了单筋矩形截面梁配筋率相同时，分别考虑聚丙烯纤维掺量和混凝土强度等级等因素对梁的正截面承载力、刚度及延性等几个方面的影响。 |
