- 更多网络例句与受力梁相关的网络例句 [注:此内容来源于网络,仅供参考]
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To clear the stress relations between bridge decks and the steel tube truss stiffening girder of Zhongxian Yangtze River Bridge, this paper establishes two kinds space analysis model for this bridge, namely: the interaction model of the bridge decks work with the stiffening girder together and the traditional model not work with the stiffening beam.
为了明确忠县长江大桥桥面板与钢管桁架加劲梁的受力关系,本文建立了两种空间分析计算模型,即;桥面系参与加劲梁受力的共同作用模型和不参与加劲梁受力的传统模型。
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This method makes the complicated space structure calculation decompound into a couple of related plane problem. The bottom structure is supported by longitudinal beams in cross calculation, and then the cross forces and elastic supporting forces are obtained.
横向计算中,底部弹性支承在各纵梁上,可求得结构的横向受力与弹性支承反力;然后将弹性反力作为荷载,反向作用于纵梁上,进行纵梁的受力计算。
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The results of lattice beam internal force calculated method based on double parameter groundsill model are more approach the experiment measured values because of consideration of the pass of shearing force in soil, and its calculated workloads are similar with the method of winkler elastic foundation. Besides, the thesis also discusses the moment of torque affected results on node stress situation and the correction of stress value at the bottom of cross node of lattice beam. Due to the repeat calculation of node area during internal force calculation, the stress value of the bottom of beam is lower, this may lead the calculated value unsafe, but the corrected stress value will more approach to practical situation.
对格构梁的内力计算提出基于双参数地基模型的格构梁内力计算方法,其计算结果表明,双参数地基模型上的格构梁内力由于考虑土中剪力的传递更加接近于试验实测值,其计算工作量与winkler弹性地基梁法相当,此外,文中还探讨了扭矩作用对格构梁节点受力情况的影响结果以及格构梁交叉节点底部的应力值的修正,由于内力计算过程中节点处的面积被重复计算,使得梁底应力偏小,可能导致计算结果的偏于不安全,修正后的应力值更接近于实际情况。
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The dissertation mainly has a research on beam shape of concrete transfer floor. The load form of transfer floor is complicated and the stress-strain changes greatly, so the structure design could be divided into the calculations of rectangular sections in bending, incline plane in shearing, and shear wall structure.
本文以目前广泛使用的梁式钢筋混凝土转换层为研究对象,针对梁式转换层受力复杂,应力应变变化大,重点研究了深梁截面设计法的正截面受弯、斜截面受剪及转换层剪力墙结构的计算,并对转换层结构构造设计进行了分析。
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First of all, the paper carried out test study on four two-spanned model members of FSMRCWB, including three 1/2-scaled two-storeyed models and one 1/3-scaled three-storeyed model. The paper analyzed the test results, including analysis on mechanical property of the composite wall beam under vertical loads, and failure mode, deformation capacity, aseismic performance under horizontal loads and constant vertical loads. Secondly, the nonlinear property of concrete is studed and the nonlinear models of FSMRCSS is builded by ANSYS. Last, The paper studies the result of ANSYS, which mainly includes the loading-displace curve of FSMRCSS under horizontal loads and constant vertical loads, the mechanics of arch under vertical loads lonely and under horizontal loads and constant vertical loads respectively, and status of the distribution and changing of vertical stress and cross shear on the surface of the suporting beam, and the influence of span ratio and hole.All in all, the caculating results are in good agreement with the test results.
本文首先进行了三个1/2比例的两跨两层和一个1/3比例的两跨三层的框支密肋复合墙梁的模型试验,分析了框支密肋复合墙梁在竖向荷载作用下的受力性能,以及在竖向荷载与水平低周反复荷载共同作用下的受力性能、变形性能、滞回性能、耗能系数及破坏形态;其次,研究了混凝土的非线性特性,建立了框支密肋复合墙梁非线性有限元模型,并借助大型通用有限元软件ANSYS进行计算;再则,进行了非线性有限元结果分析,主要研究框支密肋复合墙梁在竖向荷载与水平地震力共同作用下的荷载位移曲线,分析在竖向荷载单独作用下和在竖向荷载与水平地震力共同作用下墙梁的拱作用,托梁顶面的竖向应力和横向剪应力分布及变化情况,并讨论跨度比、洞口对墙梁拱作用和托梁顶面的竖向应力的影响。
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The ratio of the vertical load distributed between the arch rib and the tie beam of the two schemes is the same. For the integral girder deck scheme, the longitudinal beams and the deck slab of endure more axial force compared to the ballast girder deck scheme, especially to the deck slab with a conspicuous increase of the axial force and higher stress, and the tie beam endure less. The force-bearing characteristics of the cross beams under the integral girder deck scheme is obviously better than that of the ballast girder deck scheme, especially at the two ends of each cross beam.
在受力上,与道碴板桥面方案相比,整体桥面方案竖向荷载在拱肋和系梁之间的分配基本相同,混凝土板和纵梁分担的纵向力则相对更大,尤其是混凝土板,增幅较明显,应力水平整体较高,系梁分担的纵向力则得到减小,横梁的受力状况整体桥面方案明显优于道碴板桥面方案,特别是在梁端处。
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The curve continual steel box Liang shearing force stagnates the effect finite element analysis box section Liang has the big flexural rigidity and torsional stiffness, the stress performance good, spanning ability big, on the bridge the field of vision open and so on the merits, is in the bridge design the commonly used structural style, when receives under the dead load or the symmetrical live load function winding, because the lifting surface detrusion causes its bending stress to present the non-uniform distribution condition along the Liang width direction, this phenomenon is called "the shearing force to stagnate the effect".
曲线连续钢箱梁剪力滞效应的有限元分析箱形截面梁具有较大的抗弯刚度和抗扭刚度、受力性能好、跨越能力大、桥上视野开阔等优点,是桥梁设计中常用的结构形式,在受恒载或对称活荷载作用下挠曲时,由于翼板的剪切变形致使其弯曲应力沿梁宽度方向呈现不均匀分布状态,此现象称为&剪力滞效应&。
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The paper describes how the local force of the main web is considered as the force caused by the Contact pressure among the trolley wheel, rail and top flange, and how the contact analysis model for the local force is built by means of both Hertz theory and finite element software ANSYS combined. Also, it analyzes the variation of the local stress under the different conditions and comes to a conclusion, and compares the results derived from the experimental formula with the result from ANSYS.
本论文的主要内容:将Hertz接触理论和有限元软件ANSYS结合起来,把主腹板的局部受力问题视为小车轮与轨道及轨道与上翼缘板之间发生接触行为作用下的受力问题,建立了小车轮压作用处偏轨箱形梁主腹板局部受力的接触分析模型,研究不同情况(小车轮压、箱形梁几何参数和轨道截面惯性矩)下局部应力的变化规律,得出相关结论;最后将经验公式解与ANSYS数值解进行对比分析论证。
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For the structure stress condition, the dead load is born mainly by continuous rigid-frame, and the live load is born by both the arch rib and the main beam, the force separately bora by the arch rib and the main beam is influenced by the whole rigidity of beam and arch, and by areas of flexible hanger rod, the structure perforce is no longer same with the common beam and arch, and the inner force analysis progress is more complex to the common bridge system, especially, the multi-direction stress analysis to the combination area of pier、 arch and beam is very difficult, for such reasons, so it is very necessary and important to have stress performance analysis in the combination area of pier、 arch and beam.
从结构受力情况来看,梁体自重主要由连续刚构承受,活载由拱肋与主梁二者共同承受,各自承受力的大小受梁、拱相互整体刚度、柔性吊杆面积的大小影响,结构性能已不同于一般的拱与梁,结构内力分析的过程较一般桥梁体系较为复杂,特别是墩、拱、梁结合处的多向受力状况的分析难度更大,所以对该桥式结构,墩、拱、梁结合部的结构受力特性进行进一步地理论分析测验研究也就显得十分必要和迫切了。
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At the same time, the finite staff element method is used to analyze the influence of beam rigidity; and the two new methods proposed are used to analyze the influence of connect way between piles and beam; and the conclusion is obtained that the rigidity ratio between beam and piles being 0.48 is appropriate; the continuative increase of the rigidity ratio is not significant; the worst condition is that connecting way between piles and beam is hinged; the best condition is that connecting way between piles and beam is rigid. Whether is single-row pile or are double-row piles, when the front of single-row pile or the front of the front-row pile(in the double-row piles) needed excavation, it is supposed to that ought to be carefulness to excavate, because it is that the engineering cost increased greatly.
同时,用有限杆单元法,对双排桩的连梁刚度和用文中提出的方法以桩梁连接方式进行了试验和理论分析得出如下结论:在满足不相互影响排桩间距的情况下,桩顶连梁与桩的刚度比不小于0.48是合适的,此时再增加连梁刚度无意义;桩梁连接为铰结时双排桩受力变形性质最差,刚结时受力变形性质最好;不论是单排桩还是双排桩,桩前和前排桩桩前土体需要开挖时应慎重,因为这种开挖对支护结构影响很大,造价增加很多;双排桩省钱,而且抵抗变形的能力强,值得在工程中研究和广泛应用
- 更多网络解释与受力梁相关的网络解释 [注:此内容来源于网络,仅供参考]
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PRC:预应力钢筋混凝土
本文首先通过一根预应力钢筋混凝土(PRC)梁振动测试实验,证实了PRC梁的弯曲振动自振频率随着预应力的降低而有所增加,其规律与受轴压力梁的自振频率受轴力的影响基本一致,因此采用受轴压力梁的模型作为PRC梁的计算模型,
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shear:剪力
所以我们将对於此情况下的扭转理论进行深入的研究探讨,而探讨的内容则包括圣文南扭转及翘曲扭转,其中翘曲扭转对於开口薄壁截面梁影响较大,受挠杆件如版梁等,除受弯曲力矩作用之外,同时尚承受剪力(shear)之作用.
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unsymmetrical bending:不对称弯曲
unsymmetrical beam 不对称梁 | unsymmetrical bending 不对称弯曲 | untensioned reinforcement 无受力钢筋