| 1. | Small rectangular backup bars were used to fabricate the web-bottom flange connection .
在腹板与下翼缘的施焊中使用小矩形挡板。 |
| 2. | In elementary beam bending theory , it is assumed that the stresses are constant through the width of the beam . however , for the wide flange girders , the stresses are not uniform
按照初等梁理论即假定翼缘板具有无限抗剪刚度,宽翼缘箱梁在荷载作用下翼缘的正应力沿着宽度方向上是均匀分布的。 |
| 3. | Manufactured and designed according to jb / t2603 - 94 standard , the product is a light and small crane hanged under the below of " 工 " type steel assisting with cd1 and md1 electronic calabash
本产品是按jb / t2603 - 94标准设计制造的，与cd1型和md1型电动葫芦配套使用，悬挂在工字钢下翼的轻小型起重机。 |
| 4. | This paper researches the plane stiffness of new composite structure for slab on the lower flange , which is compared with the traditional structure for the slab on the top flange
本文研究了将楼板置于钢梁下翼缘的新型组合结构平面刚度，并和传统的将楼板置于钢梁上翼缘的结构形式的平面刚度和极限承载力作了比较。 |
| 5. | 962m respectively ) . neighbouring segments are linked with bolts and welding . after the girders were segmented , guesseted plates were used with high - strength bolted oints to connect the web plates , and the higher and lower flange plates were butt - welded
相邻梁段之间的连接形式为栓焊混合型连接，采用节点板把腹板用高强螺栓连接后上、下翼缘板分别对焊。 |
| 6. | In the region of investigation , the water in the soil is upward and under the evaporation condition in the first zone , where intensive evaporation occurs ; the matrix potential of soil water is downward so that the water is downward in the second zone
在研究区内，第一个分带是水分向上运动，水分处于蒸发状态，常年处于极度干燥状况；第二分带水土势较低，也就是第一个零通量面的下翼部分，在这一分带中水分向下运动。 |
| 7. | We generated its grid surface on the fuselage or missile body according to the geometry projection relation between aerodynamic components and the bilinear interpolation approach . finally , we successfully developed a new algebra grid generation technique in virtue of the improved four - boundary interpolation . in this thesis , we put emphasis on the researches of aerodynamic inverse design and drag reduction questions for airfoil and wing using euler equations and control theory proposed by jameson
( 2 )进行了应用控制理论和二维欧拉方程的翼型气动反设计，以及有升力约束情形下翼型跨音速减阻问题研究，分别推导了相应的共轭方程及边界条件的数学形式，并给出了相应的梯度求解公式形式，研究发展了共轭方程及梯度的数值求解方法，成功进行了多个翼型的反设计和减阻问题研究。 |
| 8. | Plastic theory suggests , the composite beam for the floorslab is suited lower flange , it s plastic limit moment cuts down by 52 . 4 % than the composite beam for the floorslab is suited on the top flange . it s plastic limit moment lifts 8 . 8 % than the steel beam , which is on the same condition
塑性理论分析的结果表明，楼板位于钢梁下翼缘形式的组合梁和楼板位于钢梁上翼缘形式的组合梁截面相比较，其塑性极限弯矩降低52 . 4 ，和同等条件下纯钢梁截面相比较，楼板位于钢梁下翼缘的组合梁塑性极限弯矩提高8 . 8 。 |
| 9. | Elastic theory and plastic theory are adopted in the analysis of the two section composite beam . elastic theory suggests , on the condition of the same steel beam section size , the composite beam for the floorslab is suited lower flanges convertion section stiffness cuts down by 75 . 1 % , elastic limit bending resistant capability cuts down by 47 . 9 % , than the composite beam for the floorslab is suited on the top flange . it s conversion section stiffness is lifted 8 . 0 % , elastic limit bending resistant capability is lifted 0 . 20 % , than the steel beam
弹性理论分析的结果表明，在钢梁截面大小相同的条件下，楼板位于钢梁下翼缘的组合梁和楼板位于钢梁上翼缘的组合梁相比，其换算截面刚度降低75 . 1 ，梁的弹性极限抗弯承载力降低47 . 9 ，楼板位于钢梁下翼缘的组合梁和纯钢梁相比，其换算截面刚度提高8 . 0 ，梁的弹性极限抗弯承载力提高0 . 2 。 |
| 10. | The work in this thesis mainly includes following parts : 1 . as for box girder cross section , the three - bar stimulation method under typical loads and supports has been introduced . the force and stress formulae for flanges have been derived from the three - bar method . by reasonable simplification for multi - cell box girder , the three - bar method has been applied in multi - cell box girder ' s shear lag analysis
对于箱形截面主梁，本文介绍了三杆比拟法上、下翼板中比拟杆的计算公式，以及在典型荷载和支承的情况下翼板内各杆的应力计算公式，并对多箱式主梁截面进行合理简化，使三杆比拟法应用于多室箱梁的剪力滞分析。 |
