| 1. | The lateral deflections of bracing systems are composed of flexural and shear deformation in practical structures 在实际结构中支撑体系表现为弯剪综合的特性。 |
| 2. | Its test specimens are 8 r . c hollow shear wall compression members which have different ratio of length to effective depth of section , 3 bend - shear members and 4 different section shear walls 本文试验的对象为8个不同长细比的轴心受压构件、 3个弯剪构件和4个整体空心剪力墙板。 |
| 3. | In this paper , for the first time , floor stiffness is denoted as shear stiffness , which reflects the influence of floor length to width ratio more effective than floor bend - shear stiffness 本文首次把楼板的刚度用剪切刚度表示,它比楼板的弯剪刚度更能体现楼板长宽比对楼板刚性的影响。 |
| 4. | In view of characteristics of the thick slab , the author suggests using not only the method of the modal decomposition but also time interval analyses and found the moment - shear model 鉴于厚板转换层的受力特性,建议对其除用振型分解法进行计算外,还应用时程分析法进行补充计算,提出了层间弯剪的力学模型。 |
| 5. | But because there are shearing stress and removing stress on the gluing plane between the steel plates and concrete , the phenomenon of premature removing of the steel plates in the strengthen beams is easy to take place 但是,由于钢板和混凝土粘结面上存在粘结剪应力和剥离拉应力,使粘钢加固梁容易发生钢板端部和弯剪区段跨中的早期剥离破坏现象。 |
| 6. | Taking advantage of both , this paper choose t cross - section and enlarge detail dimension . the goal of optimum design is to increase torsion inertia moment and reduce shearing stress when moment of flexion and shear bearing capacity of single - beam is satisfied 综合二者之优缺点,本课题选取t梁截面形式,用增大其细部尺寸的方法,以提高抗扭承载力为目标,满足弯剪等承载力要求为约束条件进行主梁截面的优化。 |
| 7. | The test study of the brick wall cement mortar reinforced with steel mesh indicates : when the consolidated brick wall fail in bending - shear , its ultimate horizontal load and drift stiffness respectively is 1 . 5 and 2 times bigger than that of brick wall 试验表明,经钢筋网水泥砂浆面层加固的墙体;在发生弯剪破坏时,极限水平荷载可以达到原墙抗剪强度的1 . 5倍以上,抗侧刚度可以达到原墙体的2倍以上,刚度的提高大于强度的提高。 |
| 8. | Besides , with stated heightand brendth ratio , acted on by horizontal and vertical load , the ultimate loads of wall failed in bending - shear is similar to one failed in shear . the walls crack form is indefinite . we ca n ' t define consolidate menthod only by the crack from 另外,一定高宽比的砖墙在竖向与水平荷载联合作用下,当弯剪破坏与剪切破坏的极限荷载比较接近时,其破坏形式具有不定性不能简单地以裂缝形式确定加固方案。 |
| 9. | By low - cycle and reverse horizontal loading test , their properties including strength property , deformation property and energy property are studied . we study the loading characteristic values ; the property of hysteretic curve and skeleton - frame curves ; the ductility property and stiffness degradation . lastly , based the data got from the test , this paper analyses and value the seismic behavior of every members 在试验基础上,研究了轴心受压构件的承载力计算和稳定问题;研究了低周反复水平加载条件下,弯剪构件和整体空心墙板的强度、变形、能量特性;轴压构件的荷载特征值;弯剪构件和整体空心墙板的滞回曲线、骨架曲线、延性等参数;从强度、变形和能耗等方面判别和鉴定各构件的抗震性能,对各个构件给出了试验的结论、评价。 |
| 10. | In allusion to section modality and transverse joint of common span bridges , we choose two kinds of calculating theories in transverse distributing calculate process : the theory of rigidity crossbeam and the theory of hinged girder and slab . making the use of the theory of optimized design , i constitute mathematics model and choose appropriate calculated method . and find the form and detail dimension of section when beams of the bridge satisfy bending moment ^ shearing force and torsional moment 在用横向分布理论计算单梁扭矩过程中,针对现有常用跨径桥梁的截面形式和横向连接状况,选取了两种计算理论:刚性横梁法和铰接梁(板)法,利用结构优化设计原理,建立主梁承载力的数学模型,选择合适的优化计算方法,得出在满足弯剪扭承载力要求时主梁的细部尺寸。 |