查询词典 box beam

It is built a thin-walled box beam base on ship hull in this thesis, and the frequency of box beam is calculated with some different model building method.

综合以上分析，需要对船体总振动的建模方法进行研究，以便运用合理简便计算模型来计算船舶总振动固有特性。

Based on the practice of first simple beam and later continous prestressed concrete combination box in the constructions of Xiangcao river bridge and Tanglong bridge, and analyzing the quality problems in the constructions, this paper puts forward some suggestions and mensures concerning plate making, steel fixing, Concrete pouring, box beam installation and system concerting, etc.

主要针对312国道镇江段香草河大桥和汤龙公路大桥采用先简支后结构连续部分预应力砼组合箱梁的施工中，在底板制作、钢筋绑扎、混凝土浇筑、预应力张拉、箱梁安装、组合体系转换等方面所采取的质量控制措施，本文分析对比了两座桥施工中好的做法及出现的质量缺陷，提出一些防治、处理措施及建议。

All nutrition bee feed use: You can open the collection, feeding fermented box beam, box beam fed after soaking.

所有蜜蜂饲料的营养：您可以打开的收集，喂养发酵箱形梁，箱形梁浸泡后喂。

In addition,the Box Beam static loading test,which is one of the effective means of inspecting quality of box beam,is also described in the paper for the purpose of reference.

箱梁静载试验是有效检验箱梁制造质量的手段之一，文中的介绍可作为箱梁质量检验方法的参考。

The paper makes description of effective box beam construction technology and workmanship which can be adopted in other projects,such technologies as:manufacturing and fixing of reinforcement,steel reinforcement fixing baseplate,web plate and top plate respectively and lifting the steel skeleton into form,requirements of design and manufacturing and way of utilization for dismantling-erection type formwork and hydraulic formwork,optimization of concrete ratio,concrete pouring process of two ends of beam in priority over the middle,in sequence of first baseplate followed by web plate and top plate at last,concrete pouring in inclined section and in horizontal layer,concrete vibration mainly byexternal vibrator in assistance with internal vibrator,methods and regulation for steam curing of concrete,dual controls over stress and strain to ensure quality of prestressing workmanship,construction method of effective beam moving by heavy-weight special moving facility,some regulations and key notes about construction of grouting under pressure,beam ends sealing,water-proof layer on the bridge surface system,protective coating.

文中介绍的采用胎具制作和绑扎钢筋，分底腹板和顶板分别绑扎并吊装钢筋骨架入模；拆装式和液压式两种模板的设计、制作要求和使用方法；综合考虑、优化混凝土配合比，混凝土灌注从两端至中间、先底板、后腹板、再顶板的施工顺序和斜向分段、腹板水平分层、附着式振捣为主、插入式捣固为辅的施工工艺，蒸汽养护的方法和规定；应力～应变双控制确保预应力施工质量的施工技术；采用重物移运器有效移梁的施工方法；压浆、封端、桥面防水层和保护层施工的一些规定和注意事项等都是对箱梁制造行之有效的施工技术和施工方法，并可为以后类似施工作借鉴。

In fact, multi-box girder bridge is different from T-beam multi-girder bridge. First, transverse distribution of load is influenced quite with the closed box beam; Secondly, as a simply-supported—continuous system, its 3-d structure behavior is remarkable, especially for a continuous skew bridge.

事实上，多箱式桥梁与T梁桥有很大的不同，其一是作为主要承重构件的梁为闭口箱梁，对荷载的横向分布有较大的影响，其二是采用先简支后连续的体系及桥面板的现浇湿接缝连接，其空间受力特征非常显著，对于具有斜交角度的桥梁更是如此。

The paper introduces the control of camber in the construction of non prestressed continuous box beam, appearance and development of cracks of bottom plate of box beam.

介绍非预应力连续箱梁施工中预拱度的控制，以及箱梁底板裂缝的出现和开展，并分析其成因，从而确保箱梁施工质量满足设计和施工规范要求。

The main way of the method of beam grid is to simulate the top structure with a equivalent beam grid, and concentrates the scattered bending rigid and tension rigid in slab or box beam into the close equivalent beam grid, and the longitudinal rigid of the real structure is concentrated in longitudinal beam rigid, and the lateral rigid is concentrated in lateral beam rigid.

梁格法的主要思路是将上部结构用一个等效梁格来模拟，将分散在板式或箱梁每一区段内的弯曲刚度和抗扭刚度集中于最邻近的等效梁格内，实际结构的纵向刚度集中于纵向梁格构件内，而横向刚度则集中于横向梁格构件内。

In this paper, the through truss composite beam is first equalized to a box beam and the progression solutions to the temperature effect of the composite beam are then obtained with the variation method.

首先将下承式桁梁结合梁等效为箱形梁，再用变分法求出了下承式桁梁结合梁温度效应的级数解，并对京沪高速铁路上的一座简支下承式钢桁结合梁桥进行了计算，其结果可供下承式桁梁结合梁设计参考。

Combined with practical work,from technological process,erection of consolidation platform and incremental launching platform ,fabrication and installation of slide rail,field assembly of steel box beam and other aspects incremental launching construction technology of steel box beam is introduced in order to provide references for similar works.

结合工程概况，从顶推施工工艺流程、钢箱梁拼装平台及顶推平台搭设、滑道制作安装、钢箱梁现场拼装、钢梁顶推及落梁等方面介绍了主桥钢箱梁的顶推施工技术，以供类似工程参考借鉴。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了