铰大

This papaer presents a new structure,which is compound large span structures of Γ frame parabolical three hinged arch space truss.

提出一种新型屋架结构——Γ型柱抛物线三铰拱空间桁架组合大跨结构，导出了该结构有关的设计计算公式。

The slip spheric joint support is also used for the large-span steel structure roofing in order to dispel distortion by temperature change an.

为了消除温度变形和安装允许误差的影响，对大跨度钢结构屋面在支座部位采用了滑动球铰支座。

Cracking patterns, streel bars's stress distribution and force-displacement curves at beams ends resulted from the experiments indicate that at location of plastic hinge area the main cracks developed sufficiently and the stress of steel bars was peak values, and no bonding failure of steel bars is found within core region of assemblies.

有限元分析所得裂缝分布、钢筋应力分布以及梁端力－位移曲线反映出，高强钢筋混凝土框架梁柱组合件在低周反复荷载作用下梁端塑性铰区裂缝开展充分，钢筋应力最大，核芯区内钢筋未发生粘结破坏。

The major products:Spiral bevel gear alternate roughing cutter of hing accuracy and efficiency,broaches,double-disc straight bevel gear cutter ,adjustable reamer,gear shaving cutters are sold to almost allthe enterprises of gear producing in china,and also sold to The united states,Japan,Korea,Pakistan and Taiwan.Our tools enjoy a good reputation both at home and abroad.

其中高效率精密弧形齿锥齿轮铣刀、伞齿刨刀、奥利康刀条、可调节用铰刀等产品畅销全国各大齿轮加工企业并远销美国、日本、韩国、巴基斯坦等国及台湾地区，深受国内外客户的欢迎。

Sight-seeing Tunnel at the Bund, Shanghai, is a fairly long one for underwater sight-seeing , tunnelled through by then the largest diameter φ7.76m articulated EPB machine, crossing over two tunnels of Metro Line No.2 ,when tunneing through Huangpu river,with construction regime extremely complicated and serious.

上海外滩观光隧道是第一条较长距离的水底观光游览隧道，采用国内直径最大的φ7.76m铰接式土压平衡盾构掘进机施工，穿越黄浦江时与上海地铁2号线两条隧道相交，施工工况极其复杂和严峻。

Frame It features long upper and lower hitch distance between the front and rear frames, cone bearing which ensures extended service life, long wheelbase design which results in improved center of gravity and stability, and increased loading force and operating weight.

车架 前、后车架的上、下铰接间距大，采用圆锥滚子轴承，寿命长；整机采用长轴距设计，重心分布合理，承载能力强，稳定性好

High speed cooling airflows and large proportion of cooling area to the volume lower both the temperature and thermal efficiency.

柱塞球铰部分温度高热应力大，容易失效。柱塞裙部变形后向内凹。

By careful study to the deflection response of a hinged-fixed circular plate u nder concentrated impulse loading,the saturated impulse phenomenon in the proces s of response is discussed.

利用有限变形弹塑性连续体的最小加速度原理，建立了分析圆板动力响应问题的数值方法，并通过对均匀分布的脉冲载荷作用下铰支圆板位移响应的细致分析，探讨了响应过程中的饱和冲量现象，指出对于高载范围内的脉冲载荷，相应于最大变形的饱和冲量确实是存在的。

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

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失