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- irregularly - shaped arch bridge 異型拱橋
- Construction Control Check and Practice of Rigid-Frame Shaped Arch Bridge with Bowstring 剛架式系桿拱橋的施工控制驗算與實(shí)踐
- The arch bridge across the Maas River , Rotterdam . 跨馬斯河的下承式拱橋,鹿特丹。
- Based on that, a finite element program which solves temperature stress of CFST arch rib is made so that the temperature stress of CFST arch bridge is analyzed qualitatively. 在此基礎上,編制求解鋼管混凝土拱肋溫度應力的有限元程序,定性分析了鋼管混凝土拱橋的溫度特性.
- New architecture is provided for the strutural form of single rib trunk section bowstring arch bridge with major span and lower strutural high, nd I organized the first such type of design project. 提出了適用于較大跨度、較低結構高度的單肋箱形截面系桿拱的結構形式,并已組織完成了首項設計。
- In the design of aeroelastic model of long-span concrete-filled steel tube arch bridge, the method of using an equivalent mandril to simulate the stiffness of whole arch rib is mainly used at present. 摘要對于超大跨度鋼管混凝土拱橋,由于受模型縮尺比所限,通常在氣彈模型試驗中不能單獨模擬出拱肋中單根鋼管的剛度,目前常采用集中剛度法用一個(gè)芯棒模擬整個(gè)鋼管桁架的剛度。
- Adopting movable vertical rib plate welding process can not only prevent welding deformation but also enhance working efficiency evidently. 提出的采用活動(dòng)式立筋板焊接操作工藝不僅可以防止焊接變形,而且明顯提高工效。
- This will make much great windage and must take into account all the effects synthetically and systemicly.This thesis contains these contents of the control of CFST arch bridges’ rib shape mainly: 1. 而鋼管混凝土拱橋拱肋吊裝實(shí)際施工過(guò)程中,其剛度遠較斜拉橋為低,很容易出現較大的偏差,必須綜合系統地考慮各種影響因素,并且有必要對整個(gè)拱肋吊裝過(guò)程進(jìn)行糾偏控制。
- special- shaped arch bridges 異型拱橋
- Using improved thick shell element program, this paper analyses the space mechanics of shoping plate arch bridge with varies slope, produces the difinition of limitation slope. 利用改進(jìn)的厚殼元程序,詳細分析了斜板拱橋在不同斜度情況下的空間受力特性,提出“界限斜度”的概念。
- Foreheads which had been hidden by cloche hats were revealed and adorned with small plate shaped hats. 以前前額被吊鐘型帽檐所遮蔽,現在也顯露出來(lái),用小型平頂帽來(lái)增加魅力。
- In this paper, the calculation formula of the transversely stable critical load of the rib arch bridge with transverse fixedness is deduced with the method of the equivalent compression bar. 文章用當量壓桿法推導出有橫向聯(lián)系肋拱橋的橫向穩定臨界荷載計算公式,并用能量法推導出了無(wú)橫向聯(lián)系肋拱橋的橫向穩定臨界荷載計算公式,同時(shí)考慮了拱肋的扭轉效應和矢跨比效應。
- An analysis of special features about long span arch bridge construction is given at first, and then, error cumulating formula is deduced based on geometry method for such arch rib. 摘要分析了大跨徑拱橋空間鋼箱拱肋的施工特點(diǎn)。
- Floor-beam webs have cracked in tied arch bridges. 在系干拱橋的橫梁腹板上發(fā)生裂紋。
- Tbe different straightening methods with flame heating for side bending, hogging, angle distortion of rib plate, local unevenness of web and torsion of whole crane beam are introduced in the paper. 介紹了對焊接引起的吊車(chē)梁旁彎、拱度、翼板角變形及腹板局部不平直度以及吊車(chē)梁整體扭曲等變形所采用的不同火焰矯形工藝.
- The inhomogeneous distribution of residual stresses in rolled strip is the critical cause of bad plate shape. 摘要殘余應力的不均勻分布是影響板形的根本原因。
- There are considerable pulsating stresses between the hub and rib plate of rotor spider in bulb hydrogenerator.So some defects such as cracks would occur during long-time operation of the unit. 燈泡式水輪發(fā)電機輪轂和輻板間承受很大的脈動(dòng)載荷,在長(cháng)期運行中,偶有裂紋等缺陷產(chǎn)生。
- The earliest European segmental arch bridge was built at Florence in 1345. 歐洲最早的拱橋是1345年在佛羅倫薩建成的。
- The outer layer of wind-pressure rib plate and the inner layer of corrugated board which formed a stable framework to be able to offer the powerful stiffness to withstand strong wind and earthquake. 外層抗風(fēng)環(huán)向壓型肋板、內層連續大波紋板,橫豎肋形結構形成穩定框架,提供強大的剛度以抵御強風(fēng)和地震作用。
- Who designed the arch bridge with granite-faced pylons at either end? 誰(shuí)設計在拱橋兩端鑲有花崗巖的塔門(mén)?