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As high speed development of the traffic industry, the need for long span pre-stressed concrete continuous curved box-girder bridges in construction of highways, urban overhead crossings and viaducts is bigger and bigger. But the existing computing method cant satisfy the precision demand hi analysing long span curved box-girder bridges.

随着交通运输事业的蓬勃发展，由于高速公路、城市立交桥和高架桥的日益增多，大跨度曲线箱梁桥的应用需求越来越大，而现有的简化计算方法对于大跨度曲线箱梁桥的计算分析尚存在一定的困难。

Circular steel arch es are distributed along the short span of the shell as the main load-bearing component,while steel tubes of rectangular section are distributed as purlins between the arches along the long span.

为满足建筑设计简洁通透的要求，该工程采用了沿椭球面短轴方向布置圆形钢拱结构为主要承载构件、拱间沿长轴方向布置矩形钢管作为檩条的结构方案。

Circular steel arches are distributed along the short span of the shell as the main load-bearing component, while steel tubes of rectangular section are distributed as purlins between the arches along the long span.

为满足建筑设计简洁通透的要求，该工程采用了沿椭球面短轴方向布置圆形钢拱结构为主要承载构件、拱间沿长轴方向布置矩形钢管作为擦条的结构方案。

The experimental results for the mid-span, a quarter span deflections, bottom plate strain of the steel girder, and the tension incremental of tendons are observed in good agreement with the theoretical calculations. This confirms the validity of the presented formulations.

采用有限元方程进行理论计算所获得的数据，如钢梁的跨中和1／4跨的挠度，底板应变和钢索的张力增量等均与预应力钢梁模型的试验结果符合良好，这表明了本文所推导的方程的有效性和正确性。

A couple of tasks including digit span memory, dot memory , digit span working memory, visuo-spatial working memory and Stroop experiment are used to investigate working memory. Language analogical reasoning and graph analogical reasoning are examined via the primary school students" reasoning ability test and Raven"s standard progressive matrices. Three mathematical-word-problem questionnaires for the primary school students were compiled by the author and had been proved with satisfying internal consistency of reliability.

用数字记忆广度任务、点记忆任务、数字工作记忆广度任务、视空间工作记忆任务和Stroop实验考查工作记忆；用小学生推理能力的测定和瑞文推理测验分别考查言语类比推理和图形类比推理能力；自编了小学生数学应用题问卷三套考查应用题解题能力，通过检验表明，该三套问卷具有较好的内部一致性信度。

On this basis, the seismic response analysis of a three-span continuous middle-supported steel arch bridge with a main span of 428m is conducted under different input conditions of uniform excitation, traveling wave excitation and multi-excitation.

在此基础上分别考察了一座主跨428m的三跨连续中承式钢拱桥在一致激励、行波激励和多点激励下的地震反应规律。

The fore bay of Heihe Longhui Hydropower Station designed by the company, is the existing biggest tunnel fore bay in China, which is height of 21m, width of 16m; for the large-span dome of surge tank of Baishuijiang Shiji Hydropower Station, which is the first project equipped with rapid-drop gate in surge tank in Gansu Province, the company adopted pre-stressed anchor cable to complete the dome's excavation and supporting at the same time, thus reduced the completion period and investment; for the diversion tunnel of Fuchuan Hydropower Station, which is the biggest non-pressure diversion tunnel in Gansu Province, with span of 9m, height of 11m, the company adopted half-tunnel supporting structure, thus reduced the project investment.

黑河龙汇水电站前池是目前国内最大的洞内式前池，跨度16m、高度21m；白水江石鸡水电站调压井大跨度穹顶采用预应力锚索技术，分瓣开挖一次支护完成，节省了工期和造价，同时是省内第一座在调压井内设置快速闸门的工程；福川水电站引水隧洞是甘肃省内最大的无压引水隧洞，跨度9.0m，高度11m，采用半洞支护结构，在满足安全的前提下节省了工程投资。

The success of Sui Fenhe cable-stayed bridge's construction control improves the technology level of the concrete cable-stayed bridge's construction control, solves the difficult problems of the long-span cable-stayed bridge's swivel erection construction and provides the valuable experiences for the long-span concrete cable-stayed bridge's swivel erection construction in the future.

绥芬河转体施工斜拉桥施工控制的成功，提高了混凝土斜拉桥施工控制的技术水平，突破了大跨度混凝土斜拉桥单点平铰水平转体施工的难题，为今后类似大跨度混凝土斜拉桥转体施工提供宝贵的经验。

In this paper, the wind tunnel test of large span roof structures' dynamic wind loads have been discussed systematically, the modal decomposition method and time domain method, which was combined with the result to calculate the wind-induced vibration responses and equivalent static wind loads of (non-large-deformation) large span roof structures are also studied at the same time, and some engineering-valuable conclusions are summarized.

本文正是在这种背景下，依托武汉体育中心游泳馆屋盖的风洞试验研究，对现有的大跨屋盖结构的风荷载及风致响应计算方法做了一定的改进，在风致响应理论在实际工程中的应用上得到了一些有工程价值的结论。

The indoor experiment of mechanical parameters of rock is performed to provide a series of mechanical parameters of rock-mass needed in numerical simulation of abandoned stope disposal.(3) The minimal roof span, the minimal cantilever roof span and roof cutting depth are studied by the 3D non-linearity FEM code ANSYS.

开展了室内岩石力学参数试验，提出了数值模拟研究所需要的岩体力学参数；(3)应用三维ANSYS有限元程序研究了顶板极限跨度、悬臂状态下的顶板极限跨度和切顶深度。

"Second Life is remarkably easy to work with, and is very popular,"

"第二次生命是显着容易的工作，并且很受欢迎，"

For example, we usually assume that materials are homogeneous and isotropic and free of internal defects or flaws.

为了得到适合有限元分析的模型，我们必须经过如图2所示的简化步骤。