| 1. | Analytical method of across - wind response and equivalent static wind loads of high - rise buildings
高层建筑横风向风致响应及等效静力风荷载的分析方法 |
| 2. | Based measured aerodynamic parameter and simulated wind speed field , time - domain expression of static wind load , buffeting load and self - excited load for bridge and vehicle are introduced
基于测试的气动参数和模拟的脉动风速场，给出了车辆和桥梁静风力、抖振力及自激力的时域表达式。 |
| 3. | According to these characteristics and equivalent static wind loading ( eswl ) theory of high - rise buildings and bridges , refined idea to study eswl of large span roofs is presented
针对上述特点,并借鉴高层、桥梁结构的等效静风荷载理论,提出了大跨屋盖结构等效静风荷载研究的精细化思想。 |
| 4. | But the theory of wind - induced response and equivalent static wind load ( eswl ) on long span roofs is n ' t well developed and in most countries few codes are presented to regulate the dynamic wind loads on long span roofs
但是大跨度屋盖结构的风荷载理论却未能随之发展而发展，各国规范中关于大跨度结构风振方面的内容几乎是空白。 |
| 5. | With the increase of span - length and height , the wind effects on these more flexible structures have not been confined to static wind loading , and the dynamic wind effects due to various wind - induced vibrations must be considered
随著结构跨度和高度的增大，风对这些柔性结构的作用就不限于静力风荷载，而必须考虑各种风致振动问题，以及由此引起的动力风效应。 |
| 6. | The analysis of static conditions is carried out for the whole frame of the pipe belt conveyor which is loaded by the deadweight , the working load and static wind load in order to see the adaptability of the whole frame of the belt pipe conveyor for the steady wind condition
对在自重、工作负荷和稳态风场风压共同作用下整体机架结构进行静力工况分析,考查整体机架结构对稳态风场环境的适应性。 |
| 7. | The static and dynamical parameterized finite element model of the whole frame of the pipe belt conveyor and the fluid dynamic parameterized finite element model of the structural section are established by the software ansys of the finite element analysis . and then the static wind load of the whole frame of the pipe belt conveyor is calculated through the average wind pressure theory and computer simulation technology
利用有限元分析软件ansys建立圆管带式输送机整体机架结构的静、动力参数化有限元模型及结构断面的流体动力学参数化有限元模型,并通过平均风压理论及计算机模拟技术计算出作用于机架结构的静风荷载。 |
| 8. | Then figure out the wind load in term of the load criterion and the wind tunnel test results separately . by comparing with the two results , we can draw a conclusion that the values which generated by the load criterion are bigger than these ones generated by the other . in order to calculate and design in the worst situation , the paper select the bigger basic wind stress and then turn the area - load into liner - load to receive the displacement of the nodes and the internal force of the cells generated by the static wind load
由此，得出用于作业棚结构设计的数据，进而按建筑荷载规范和风洞试验数据分别计算出风荷载标准值以及基本风压，通过对两种静力风荷载计算的结果进行比较，可以看出，按规范计算风荷载的结果在结构的整体计算中偏于保守。按照最不利情况计算的设计准则，本论文选用较大的基本风压值按受力面积分配的方法把面荷载转化为线荷载代入midas运算程序中，求得该结构在该静力风荷载作用下的节点最值位移。 |
| 9. | On the basis of the design and calculation of such space truss system , this paper has analysed and summed up the experiment dataes of the wind tunnel test and made a deeply research and analysis on this kind of structure which undergoing complicated wind load . compare the wind load values which gained by calculating according to load criterion and the wind tunnel test separately and then analyze and compare the two different results got by static wind load and dynamatic ones separately . at last , analyze the two outcomes through these two different methods which in virtue of finite element program midas
本文在盐田码头闸口的工程设计基础上，分析总结了对该建筑物进行风洞试验的试验数据，并对利用风洞试验数据计算所得风荷载值与按规范计算所得的风荷载值进行了比较，然后借助有限元软件midas对该结构在静力风荷载作用下和动力风荷载作用下的节点位移进行了计算分析和比较。 |
| 10. | The rules obtained from the background modal analysis method based on the quasi - steady assumption in frequency - domain are similar to those obtained by the analysis method in time - domain , and the influence of high modes can be considered . finally , the dissertation suggests that for engineering design , it is better to use equivalent wind load factor defined the ratio of wind - induced total displacement to static displacement for computing the equivalent static wind load of long - span grid roof structures , and the equivalent wind load factor of the roof of taizhou stadium is calculated
最后通过对大跨网架屋盖结构的风振系数的研究，提出了在实际工程设计中，采用位移风振系数来计算大跨屋盖的等效静力风荷载既正确又方便使用，并且给出了台州体育中心看台屋盖进行分块统计后的位移风振系数，以供设计参考。 |
