P . c . continuous rigid - framed bridge of middle span has been widely used while pc . continuous rigid - framed bridge develops towards large span 预应力混凝土连续刚构桥在向大跨径发展的同时,中等跨径的预应力混凝土连续刚构桥也得到了广泛的应用。
On the basis of structure reliability principles , this essay studies the reliability of prestressed - concrete rigid - frame bridge with high - pier and large - span during construction period 本文依据结构可靠度理论,对高墩大跨预应力混凝土刚构桥的施工期桥墩可靠度进行研究。
On the basis of the analyse of built continuous rigid - frame bridge ratio of span , according to the concept of engineering economy , while only to think about cost , the paper gains to choice rational ratio of span formula 以既有pc连续刚构桥孔跨比分析为基础,以工程经济为基本理论,提出了经济跨径的计算方法。
( 5 ) for segmental bridge , creep will cause secondary force because of changing of the system . creep has slight influence on the distribution of internal force of rigid - frame , but has great influence on the spandrel beam ( 5 )对于采用分阶段节段施工的桥梁,由于存在体系变化,徐变不仅对结构的变形有影响,而且还将产生徐变次内力。
Taking kejiadun bridge of wu - huang expressway as project background , this paper studies the application of carbon fiber reinforced plastic ( cfrp ) in strengthening the reinforced concrete continuous rigid - frame bridge with long span 本文以武黄高速公路柯家墩大桥为工程背景,对复合碳纤维( cfrp )在进行大跨径钢筋混凝土连续刚构桥加固中的应用进行研究。
Continuous rigid - framed and box - typed bridge of middle span . according to the wording feature of pc . continuous rigid - framed bridge in cantilever casting construction , every kind of temporary measurement has been analyzed 中等跨度预应力混凝土箱形连续刚构桥桥跨布置时,为方便施工及减小主桥桥长,边跨跨径在无特别要求的情况下,可考虑选用较小的边、中跨比例。
Open spandrel rigid - framed arch bridge is the development of traditional rigid - framed arch bridge during its application in china . it utilizes and develops the mechanical performances and advantages of arch and rigid - frame 空腹式刚架拱桥是刚架拱桥在我国应用中的一个新发展,它在受力方面兼有拱和梁式刚架的特点,且充分利用和发挥了二者在力学性能上的各自特点和优势。
Because it is simple to make manufacture slab with slightly curved bottom , and is economical to use steel , and is relatively great in aspect of load bearing potential capacity , the slab often has been used as braced arch and rigid - frame arch bridges " deck slab in 1970s and 1980s 由于微弯板具有制作简单、用钢量省、承载潜力较大的优点,因而上世纪七、八十年代,在刚架拱桥、桁架拱桥中常用作桥面板。
The overhead launching gantry of slide shuttering form type has been widely applied to the construction of concrete continuous girder or continuous rigid - frame bridges owing to its characteristics of good construction quality , simple and safe operation , short working time schedule and low cost input 摘要移动模架造桥机具有施工质量好,操作简便、安全,工期短,成本低廉等特点,广泛应用于连续梁或连续刚构桥的施工中。
On the basis of data collection and analyse , the paper draws lessons from the built bridge and the newest research achievement , and studies the optimal design theory and method of the continuous rigid - frame bridge with double thin - wall flexible piers which especially adapts to landform and transportation development condition in the western regions 在资料的收集和分析基础上,借鉴已建成的实桥资料和最新的研究结果,对适合我国西部地形地貌及交通建设条件的双薄壁墩连续刚构桥的优化设计理论与方法进行了研究。