Calibrations values of design target reliability index are presented correspond to the active specification for design of reinforced concrete and priestesses concrete highway bridge and culverts , and it is used as a jumping off point in evaluation criterion , which was setup in this paper 文中给出了对应于现行《公路混凝土及预应力钢筋混凝土桥涵设计规范》的设计目标可靠指标的校准值，并将其作为可靠性评定标准的起点。
Based on the interaction between csbcs and soil , the overall stability of csbcs was analyzed by using ansys . the failure models of stability were proposed and the steady carrying capacity of structure was calculated . the result indicates that csbcs has the property of high stability , which can be used as the reference to some degree for the more wide application of csbcs at home 基于波纹钢板桥涵和土的共同作用，本文用大型有限元软件ansys对波纹钢板桥涵进行了整体稳定性分析，首次计算了该结构的稳定承载力和失稳模态，结果表明该结构具有很好的稳定性。
On the basis of the current design specification of highway reinforced and prestressed concrete bridge and culvert ( jtj023 - 85 ) , the shear capacity assessment methods of existing reinforced concrete bridge considering the main influence factors of reduced shear capacity of reinforced concrete beam - bridue 并在《公路钢筋混凝土及预应力混凝土桥涵设计规范》 ( jtj023 - 85 )基础上，考虑引起在役钢筋混凝土桥梁桥抗剪强度降低的主要因素，给出在役钢筋混凝土梁桥抗剪强度评估的方法。
This paper expounds the basic principles of technology concerning pinning up with carbon fibre and repairing concrete framework and introduces the scheme of pinning up old ridges with carbon fibre , its construction technology and measures of quality control with a project example taken from a certain bridge , which is part of jingfu highway and pinned up with carbon fibre 摘要阐述了碳纤维加固修复混凝土结构技术的基本原理，结合碳纤维加固京福高速公路某桥涵的工程实例介绍了用碳纤维加固旧桥的方案、施工工艺和质量控制的措施。
When catchment area , average channel gradient and catchment shape factor of designed culvert or bridge are known , a user can be convenient to get local parameters c , e and b from standard contour charts and easy to calculate flood flow just by a calculator . design period of flood flow is enormously shortened as well as a high precision . estimated flood flow through culvert or small bridge by new calculation model is generally less than by traditional methods , so that much cost is cut down a s reducing the span of culvert or small bridge 以75000km ~ 2的川中丘陵地区为试点研究区，绘制了该地区新模型的参数等值线图，率定了不同设计频率的改正系数，使设计者只需在地形图上获取集水面积，河道平均坡降和流域形状系数，在参数等值线图上查得桥涵所在地的相应参数，使用计算器即可迅速计算出设计流量，大大缩短了设计周期，且精度较高，设计的洪水流量一般低于传统方法，从而可减小桥涵跨径，节省投资。
On one hand , the internal forces and displacement formulas of csbcs were deduced by using the matlab program , on the other hand , taking out of one wavelength of csbcs and soil from the actual project as the analysis object , simulation numeric calculation was carried out by using big - style fem ( finite element member ) software , ansys 一方面，用matlab编程，推导了波纹钢板桥涵的内力和位移公式，另一方面，取一个波纹长度的波纹钢板桥涵和土作为分析对象，用大型有限元软件ansys对湖北洪沙线丰收渠桥涵工程的静载试验进行了模拟数值计算。
At the same time 7794m3 affusion test were processed , and roadbed settlement observation conducted for two more year , physical mechanism and chemical index experiment were analyzed in the laboratory , section experiment of earth sample was proceed , changement of compacted soil body micromechanism along with depth were analysed by polariscope and scan electricscope . drain ditch , barrel - drain and little bridge were treated by composite geotextile 在室内进行了物理力学、化学指标实验分析，并对土样结构进行了切片试验，用偏光显微镜和扫描电镜分析了土壤碾压后沿深度分布的土体微观结构变化情况，对边坡、边沟、排水沟、小桥涵及护坡封水采用复合土工布进行处理。
However , it lacks runoff data in absolutely most areas where culvert and small bridge locate . some traditional design method , such as the methods of statistic zone parameter , modification by catchment area , rainfall - runoff , reasoning formula and empiric equation et al , are used to estimate flood flow through culvert or bridge 然而，绝大多数中小桥涵所在地却没有可利用的径流资料，通常采用统计分区法，面积改正法、暴雨径流法、推理公式和经验公式等传统设计方法，这些方法一般比较繁琐、精度较低、设计的流量偏大，导致工程造价偏高而浪费资金。
The paper is based on the construction of the express - highway between yiyang and changde in hunan province , aiming at enhancing the serviceability of cement concrete pavement , probing into the structural assemblage of the cement concrete pavement , the roadway drainage system , contraction joint with the dowel bar and precaution of bumping at the end of the abutment . it presents some achievements of the research , including more reasonable structural assemblage and roadway drainage system , the method of setting dowelled bar in contraction joint , putting forward the concept of stage - transition from rigid to flexile behind abutment 本文以湖南省益阳至常德高速公路项目为依托，以提高水泥混凝土路面使用性能为目标，就水泥混凝土路面结构组合、路面排水系统、缩缝设置传力杆、桥头跳车问题的防治等方面开展研究和工程实践，取得了丰富的研究成果，如研究采用了更合理的路面结构组合，设置了较完善的路面排水系统，在国内高速公路上率先全面采用缩缝加传力杆技术，对所有桥涵构造物台背全部采用刚柔过渡技术处理桥头跳车问题等。
At present , however , there are no code for design and construction of csbcs , and there are many problems remain to be studied about the application thereof , such as the interaction between csbcs and soil , overall stability of csbcs , and effect of the thickness of cs ( corrugated steel ) on csbcs , and the application of cs to middle or large bridge , and so on 然而，目前尚无关于波纹钢板生产标准和波纹钢板结构设计、施工规范或规程；同时，波纹钢板桥涵应用还有许多问题有待于进一步研究，如波纹钢板桥涵和土的共同作用问题，波纹钢板桥涵的稳定性问题，波纹钢板厚度对结构的影响，波纹钢板能否适用于中、大跨径的桥涵等等。
