中国桥梁大全2.doc

连续刚构桥 Continuous Rigid Frame Bridges1 番禺洛溪桥Luoxi Bridge 2 沅陵沅水桥 Yuanling Bridge over Yuanshui 3 尤溪丘墩桥 Qiudun Bridge 4 东明黄河大桥Dongming Bridge over Yellow River 5 台北忠孝桥Zhongxiao Bridge 6 黄石长江大桥Huangshi Bridge over Yangtze River 7 丰城赣江桥 Fengcheng Bridge over Gangjiang 8 雉山漓江桥Zhishan Bridge over Lijiang番禺洛溪桥 Luoxi Bridge洛溪桥位于广东省广州市南郊，跨珠江。是目前国内最大的预应力混凝土连续-刚构桥。桥总长1916.04m，宽15.5m 。要求通航净高34m，净宽10m，合主跨的1/18，跨中梁高3m，合主跨的1/60。桥宽15m。主梁采用单箱单室，并采用大吨位的VSL群锚锚固系统，张拉力4275kN，为目前国内之最大者；预应力钢丝束最大长度逾190m；采用三向预应力配筋，悬臂浇筑施工。主孔桥墩采用双壁式薄壁空心墩，壁厚50cm，具有较小的抗推刚度。墩外设 国内首创的人工岛以防船舶撞击，岛呈喇叭形，顶部直径28m，全高20m。该桥引桥甚长，总长度有1376.24m，按经济跨度分孔，有16m、32m两种，因此全桥单位面积造价很低。于1988年8月建成通车。 广东省公路勘察设计院、交通部公路规划设计院设计，广东省公路工程处施工。图片附件: 1.jpg (2005-10-8 17:33, 88.44 K)沅陵沅水桥 Yuanling Bridge over Yuanshui沅陵沅水桥位于湖南省沅陵县跨越沅水，桥址处于五强溪水电站库容区内。桥全长767.3m，桥宽16m，主桥采用85+140+85+42(m)4跨不对称预应力混凝土连续-刚构桥。最高桥墩达52.4m，为双肢薄壁柔性墩，双肢中距6.8m，引桥为9孔42m预应力混凝土连续梁。该桥主要特点：库区桥梁，桥高水深，为解决现浇施工边跨搭设支架的困难，选用不对称分孔，并用顶推法施工边段；主桥预应力采用3000kNXM式锚具及无粘结预应力筋设计；用小吨位千斤顶张拉大吨位钢索；引桥及边段多点顶推选用特置新型盆式橡胶支座，施工时的滑道与永久支座合一；顶推施工中改进水平千斤顶装置，并用微机控制顶推全过程；双柱式墩采用无帽梁结构，在柱顶下0.5m处设一系梁，节省材料，方便施工；基础采用3.5m大直径嵌岩钻孔桩。于1991年建成。 湖南省交通规划勘察设计院设计，湖南省路桥公司施工。 Location: Yuanling, Hunan Prov.Main span: 140m85+140+85+42(m) P.C. continuous rigid frame bridge in the reservoir district of a water electric stationErected by cantilever casting combined with incremental launching methodCompleted in 1991Designed by Communication Planning Survey and Design Institute of Hunan Prov.Constructed by Road and Bridge Co. of Hunan Prov.图片附件: 1.jpg (2005-10-8 17:33, 93.57 K)尤溪丘墩桥 Qiudun Bridge丘墩桥位于福建省尤溪县尤溪口镇，是目前中国顶推法施工中最大跨度的预应力混凝土梁桥，桥总长250m，宽2x1.0+7(m)。主桥在顶推施工阶段为60+76+60(m)撑架式预应力混凝土连续箱梁，运营阶段体系转换为撑架式预应力混凝土连续-刚构桥。主桥墩由撑架、上墩、中墩和基础组成，兼有施工和运营不同阶段的受力性能。边墩采用双柱式墩和挖孔 桩基础。于1992年3月建成。 交通部公路科学研究所、福建省交通规划设计院设计，省第二公路工程公司施工。 Location: Yiuxi, Fujian Prov.Main span: 76mChinas largest P.C. continuous box girder frame bridge using in-cremental launching method in erection at present Superstructure: P.C. continuous box girder in erection, continuous rigid frame in serviceCompleted in March 1992Designed by Highway Research Institute, Ministry of Communication; Communication Planning and Design Institute of Fujian Prov.Constructed by the 2nd Highway Engineering Co. of Fujian Prov.图片附件: 1.jpg (2005-10-8 17:34, 41.94 K)东明黄河大桥 Dongming Bridge over Yellow River东明黄河大桥位于山东省东明县和河南省濮阳市之间的黄河上，主孔系一座预应力混凝土连续-刚构公路桥。全长4142.14m。主桥9孔一联，分跨为75+7x120+75(m)，其中间4个主墩采用双薄墩，墩梁固结，其余各墩为实体式空心墩，每墩顶设双排盆式橡胶支座，兼有连续梁桥和连续-刚构的优点，采用悬臂浇筑法施工。引桥上部结构采用40m和50m两种部分预应力混凝土简支T梁，桥面连续，最大联长300m。下部结构为2m2.4m钻孔桩，引桥桥墩为单排双柱式墩。桥梁横截面为单箱单室，桥宽18.5m，中间机动车道12.1m，两侧非机动车道2.3m，桥面设新泽西分隔带和两侧护拦。该桥正在施工中。河南省交通规划勘察设计院设计，黑龙江省、河南省公路工程公司及荷泽、濮阳公路段（局）施工。Location: dongming, Shandong Prov.Main span: 120m 75+7120+75(m) P.C. continuous box girder rigid frame bridge Erected by cantilever castingCompleted in Sept. 1993Designed by Communication Planning, Survey and Design Institute of Henan Prov.Constructed by Highway Engineering Bureau of Heilongjiang Prov. and Henan Prov.图片附件: 1.jpg (2005-10-8 17:36, 76.39 K) 黄石长江大桥 Huangshi Bridge over Yangtze River黄石长江大桥 Huangshi Bridge over Yangtze River 黄石长江大桥位于湖北省黄石市，为一公路桥，全长2580.08m，主桥长1060m，分跨为162.5+3x245+162.5(m)，系一5跨预应力混凝土连续-刚构桥，跨度与联孔长度均很大。桥宽20m，其中机动车道宽15m，非机动车道各宽2.5m设于两侧。黄石岸引桥长840.7m，由连续箱梁桥和桥面连续简支T型梁桥组成；浠水岸引桥长679.21m，由桥面连续简支T型梁桥组成。主桥墩采用28m直径双壁钢围堰加16根3m钻孔灌注桩基础，具有较高的防船舶撞击能力。通航净空200x24m，可容5000t单体轮船或32000t大型船队上下通航。 交通部公路规划设计院设计，中国公路桥梁建设总公司施工总承包。 Location: Huangshi, Hubei Prov.Main span: 245m 162.5+3245+162.5(m) P.C. continuous box girder rigid frame bridge Length of main span holds Chinas largest and worlds second place at present Substructure: Double wall steel cofferdam with boring piles foundation Completed in Designed by Highway Planning and Design Institute, Ministry of Communications Constructed by China Road Bridge Corp.图片附件: 1.jpg (2005-10-8 17:37, 103.87 K)丰城赣江桥 Fengcheng Bridge over Ganjiang丰城赣江桥位于江西省丰城市，总长1207m，分跨为 12x40+55+4x70+55+8x40(m)；桥宽2x1.0+11(m)。正桥为Y型墩6孔预应力混凝土简支梁桥。正桥和引桥均采用相同的4箱单室等高度箱型梁，梁高1.9m。V型托架及其上30m主梁采用斜撑式贝雷支架就地浇筑；托架之间的40m主梁与简支梁均采用相同的工艺预制，相同的双导梁架设；主桥墩采用浮运承台外壳（外壳平面尺寸与承台相同，但高度大于承台厚度）施工；施工速度甚快，工期仅18个月，于1992年11月竣工。 江西省交通规划勘察设计院设计，江西省路桥工程局施工。Location: Fengcheng, Jiangxi Prov.Main span: 70m 55+470+55(m) P.C. rigid frame bridge Y-shape piers-Cast-in-situ on scaffoldingsCompleted in Nov. 1992Designed by Communication Planning, Survey and Design Institute of Jiangxi Prov.Constructed by Road and Bridge Engineering Bureau of Jiangxi Prov.图片附件: 1.jpg (2005-10-8 17:38, 72.03 K) 雉山漓江桥 Zhishan Bridge over Lijiang雉山漓江桥位于广西桂林市。系一建于风景区的预应力混凝土V型墩刚构桥。线条流畅，轻巧别致。分跨为67.5+95.0+67.5(m)，锚跨长67.5m，悬臂长27.5m，悬臂间设置40m挂梁，均为箱形截面，墩顶箱高3.0m，向两侧对称伸长16m，按直线变化成2.0m箱高。V形墩的斜腿长12m，宽度与箱梁等同（5m)，斜腿倾角45度。V形墩可减小主梁的M峰值，并显著降低建筑高度，最小高跨比达1/42.5。于1988年9月建成通车。 铁道部大桥工程局设计、施工。Location: Guilin, Guangxi Prov.Main span: 95m 67.5+95.0+67.5(m) V-shape piers P.C. rigid frame图片附件: 1.jpg (2005-10-8 17:39, 63.42 K)图片附件: 2.jpg (2005-10-8 17:39, 29.59 K)拱桥 Arch Bridges 拱桥是我国最常用的一种桥梁型式，其式样之多，数量之大，为各种桥型之冠，特别是公路桥梁，据不完全统计，我国的公路桥中百分之七为拱桥。由于我国是一个多山的国家，石料资源丰富，因此拱桥以石料为主。建于公元1990年，跨径120m的湖南乌巢河大桥，是当今世界跨径第一的石拱桥。我国建造的钢筋混凝土拱桥的形式更是繁花似锦，式样之多当属世界之最，其中建造得比较多的是箱形拱、双曲拱、肋拱、桁架拱、刚架拱等，它们大多数是上承式桥梁，桥面宽敞，造价低廉。 箱形拱主要用于大跨径。四川涪陵乌江大桥，跨径200m，是我国已建成的最大跨径的箱形拱，跨径420m的万县长江大桥正在设计中，它将是世界最大跨径的钢筋混凝土拱桥。双曲拱是我国首创并不断改进的一种新型钢筋混凝土拱桥，它发源于江苏无锡，遍步各地，最大跨径当推河南前河大桥，跨径150m；桁架拱是在软土地基上为了减轻自重、改善拱上建筑与主拱圈共同作用，藉桁架原理逐步发展起来的一种轻型钢筋混凝土拱桥，适用于中小跨径桥梁。当采用了预应力措施和悬臂拼装的方法，就形成一种悬臂组合桁架拱桥，正在建造的贵州江界河大桥，主跨330m，是国内最大跨径的在建拱桥。四川宜宾小南门大桥为跨径240m的中承式肋拱，是我国该种桥型的最大跨径。刚架拱桥是从简化拱上建筑着眼，利用斜撑将桥面最不利荷载位置的荷载传至拱脚，以改善主拱的受力，在江苏无锡建成了跨越大运河的三座跨径100m的钢筋混凝土刚架拱。在我国也建有一定数量的下承式钢筋混凝土肋拱，其中有的是系杆拱或刚拱刚梁组合拱，后者是跨径100m册中承式无铰拱；我国还修建了一些钢拱桥及斜腿刚架桥。 我国在建造钢筋混凝土拱桥的实践中进行了拱轴线优化，混凝土徐变对混凝土拱内力重分布影响、连拱计算、拱桥荷载横向分布、各种形式拱桥的设计计算理论的创立与完善、组合装配式混凝土拱桥的施工控制等研究。为了适应在软土地基上建造混凝土拱桥，提出了组合桥台形式与其计算理论。在拱桥施工方法上也有所创新：如中小跨径拱桥以预制拱肋为拱架，少支架施工为主，或采用悬砌方法；大跨径拱桥则采取纵向分条，横向分段，预制拱肋，无支架吊装，组合拼装与现浇相组合的施工方法；此外，在采用无支架转体施工方法建造拱桥方面也有不少成功的经验。 Of all types of bridges in China, the arch bridge holds the leading role with its greatest variety and largest magnitude. And especially, arch structure is widely used for highway bridges. The statistics from all the sources available show that around 70% of highway bridges are arch bridges. China is renowned for its mountains with an abundant supply of stone. So, stone has been used as the main construction material for arch bridges. The Wuchao River Bridge in Hunan Province, for instance, with a span of 120m, is the longest stone arch bridge in the world. However, Chinas reinforced concrete arch bridges are unparalleled in the world for their various forms and styles. Most of the arches used in our country fall into the following categories: box arch, two-way curved arch, ribbed arch, trussed arch, and rigid framed arch. The majority of these structures are deck bridges with wide clearance, and it costs less to build such bridges. Box arch is especially suitable for long-span bridges. The longest stone arch ever built in China is the Wujiang Bridge in Beiling, Sichuan Province, whose span is as long as 200m. The project over the Yangtze River in Wan County, Sichuan Province with a spectacular span of 420m will set up a world record in concrete arch literature when it is completed. A unique and successful improvement of reinforced concrete arch, the two-way curved arch structure, which originated in Wuxi, Jiangsu Province, has found wide application all over the country, thanks to its advantages of saving labour and falsework. The largest span of this type goes to the 150m-span Qianhe River Bridge in Henan Province, built in 1969. Trussed arch with light dead weight performs effectively on soft sub-soil foundations. It has been adopted to improve the composite action between the rib and the spandrel. On the basis of the truss theory, a light and congruous reinforced concrete arch bridge has been gradually developed for short and medium spans. Through prestressing and with the application of cantilevering erection process comes into being a special type of bridge known as cantilever composite trussed arch bridge. An example of this type is the 330m-span Jiangjie River Bridge in Guizhou Province, which is still under construction at present. When completed, the bridge will be the largest arch bridge in China. The Little South Gate Bridge, situated in Yibin City, Sichuan Province, is a half through ribbed arch bridge with a span of 240m, the longest of its kind. With a simplified spandrel construction, the rigid framed arch bridge has a much better stress condition on the main rib by means of inclined struts, which transfer to the springing point the force induced by the live load on the critical position. In the city of Wuxi, Jiangsu Province, three such bridges with a span of 100m each were erected in succession across the Great Canal. Besides, quite a number of ribbed arch bridges have been erected, either with tie arches or with Langers girders. The recently completed Wangcang Bridge in Sichuan Province and the Gaoming Bridge in Guangdong Province are both steel pipe arch bridges. The former has a 115m prestressed tie arch, while the latter, a 110m half through fixed rib arch. In our country, there have also been constructed a few steel arch bridges and slant-legged rigid frame bridges. Along with the construction of reinforced concrete arch bridges, researches on the following topics have been carried out: optimum arch axis locus, redistribution of internal forces between concrete and reinforcement caused by concrete creep, analytical approach to continuous arch, and lateral distribution of load between arch ribs. Besides, design approaches to various types of arch have been formulated and revised. The erection of composite precast reinforced concrete arch bridges can now be controlled. The construction of combined abutment with its design theory has been introduced, which is adaptable to the building of arch bridges on soft subsoil foundations.In addition, modern techniques have been attained that may solve the problems arising in bridge construction. In building arch bridges of short and medium spans, precast ribs are used to serve as temporary falsework. And sometimes, cantilever paving process is used. Large span arch bridges are segmented transversely as well as longitudinally. With precast ribs, a bridge can be erected without scaffolding, its components being assembled, complemented by cast-in-situ concrete. Also, successful experience has been accumulated on arch bridge erection, particularly the erection by the method of overall rotation without any auxiliary falsework or support, which has proved feasible and successful.圬工拱桥 箱形拱桥 双曲拱桥 刚架拱桥 桁架拱桥 桁式组合拱桥肋拱桥斜腿钢架桥及其他 圬工拱桥 Masonry Arch Bridges 1 德安桥Dean Bridge2 黄虎港桥Huanghugang Bridge 3 白沙桥 Baisha Bridge 4 洛阳龙门桥Longmen Bridge 5 云南长虹桥Changhong Bridge 6 成昆线一线天桥 Yixiantian Bridge 7 都安红渡桥 Hongdu Bridge 8 丰都九溪沟桥 Jiuxigou Bridge 9 乌巢河桥Wuchaohe Bridge 10 河源东江大桥Heyuan Bridge over Dongjiang德安桥 Dean Bridge德安桥位于江西省德安县北门外，跨博阳河，桥跨为3孔34m片石拱，全长132.4m，净矢高1/4，拱轴线采用变截面悬链线，为施工方便，内腹线做成圆弧曲线，拱宽7m，拱圈顶厚0.8m，拱端厚1.45m，拱顶填料连路面在内厚0.5m，桥面宽为7+2x1.5(m)。于1959年建成。 江西省交通厅工程局设计、施工。Location: Dean, Jiangxi Prov.Main span: 34m 334m rubble stone arch bridgeCompleted in 1959Designed and constructed by Highway Engineering Bureau, Communication Dept. of Jiangxi Prov.黄虎港桥 Huanghugang Bridge黄虎港桥位于湖南省道石门至清官渡公路线上，跨越魏水支流的深邃峡谷，自然横坡达80度，采用单孔石拱桥方案，跨径60m，这是中国在50年代末期的跨径最大的石拱桥，拱矢度1/3，空腹式桥台，空腹拱跨长13m，全桥长103m，桥高60m。桥宽8m，采用等截面圆弧空腹拱，拱圈厚2.3m。采用满堂式拱架施工，施工时拱圈采用分环、分段砌筑，分环合拢，以减轻拱架荷载。于1959年建成。 交通部组织的长沙大桥设计组设计，石清公路指挥部施工。Location: Shimen-Qingguandu Highway, Hunan Prov.Main span: 60mStone bridge with longest span in 1950s China Arch ring setting by layers Hollow abutmentCompleted in 1959Designed by Design Group of Changsha Bridge Constructed by Headquaters of Shitao Highway图片附件: 无标题.jpg (2005-10-9 15:51, 106 K)白沙桥 Baisha Bridge白沙桥位于浙江省建德县，跨越新安江，为变截面、悬链线、不等跨空腹拱桥。跨径为2x45+2x50+2x45+10(m)，全桥总长362m，桥面净宽7+2x1.5(m)人行道。该桥采用扩大基础奠基于岩石上，为国内首次采用夹木板拱架施工。该桥在设计中充分考虑河光山色的特点，布置合理，拱上用暗斗平衡因桥面纵坡产生恒载的差值，栏杆柱上饰有各色多姿的大理石小石狮252个，桥体能与环境相协调，衬托出一种端庄美观的景观。于1960年竣工。 浙江省交通设计院设计，浙江省公路局施工。Location: Jiande, Zhejiang Prov.Main span: 50m 245+250+245+10(m) multi-span open spendrel arch bridgeBuilding firstly in China arch ring on splint timber arch falseworkCompleted in 1960Designed by Communication Design Institute of Zhejiang Prov.Constructed by Highway Engineering Bureau of Zhejiang Prov.洛阳龙门桥 Longmen Bridge洛阳龙门桥在河南省洛阳市南12km处，跨越伊河，处于龙门石窟游览点入口位置上。跨径为60+90+60(m)的石拱桥，桥宽12.6m，拱矢度1/8，主拱圈为等截面悬链线，拱圈厚1.1m，两端各有6m石拱作为桥下立交通道。龙门桥施工拱架由临时墩和钢桁架组成。于1961年建成。 河南省交通厅工程局设计、施工。Location: Luoyang, Henan Prov.Main span: 90m60+90+60(m) multi-span stone arch bridge Building arch on steel truss falsework, supported by temporary piersCompleted in 1961Designed and constructed by Highway Engineering Bureau, Communication Dept. of Henan Prov. 云南长虹桥 Changhong Bridge云南长虹桥 Changhong Bridge长虹桥位于云南省昆明-那发公路线上，跨南盘江。跨径为112.5m，全长171.0m。上部结构为空腹式石拱桥，拱上建筑为横向排架支承腹拱。拱圈采用变截面悬链线，粗料石拱圈。桥址地质条件为咯斯特地区，基岩严重溶蚀风化，桥台基础采用挖孔桩、暗拱等措施以确保桥的基础稳固可靠，桥台台身为石砌。该桥施工采用满堂式木拱架，加设两道抗风索。砌筑时采用分环、分段、预留空缝等措施，使拱圈和拱架在施工各阶段都具有较佳的受力状态。于1961年建成。 云南省公路规划设计院设计，云南省公路局施工。Location: Kunmin-Nafa Highway, Yunnan Prov.Main span: 112.5mRough hewn stone arch bridge Arch ring stone arch bridge Foundation on Karst stratumCompleted by Highway Planning and Design Institute of Yunnan Prov.Constructed by Highway Engineering Bureau of Yunnan Prov.成昆线一线天桥 Yixiantian Bridge成昆线一线天桥石拱桥位于成昆铁路线上，桥位处两岸悬崖峭壁，沟深200余米，宽50余米，拱桥两端紧接隧道。该桥跨径54m，全长63.14m，为中国目前跨径最大的铁路石拱桥。矢高13.5m，拱宽4m，拱顶厚1.6m，拱脚厚2.815m，拱轴线为悬链线，按无铰拱设计，拱上建筑为每端3孔、跨度5m的腹拱，等截面悬链线，拱矢度为1/2，腹拱厚0.5m。 该桥施工时用桁式钢拱架，全桥拱架6片，拱架总重2400kN。施工用的起重设备为缆索吊车，跨度86.2m，全桥总圬工量1600余m3 ,各类花岗片麻岩拱石4930块，主拱圈分5段砌成，半上下游两端对称进行砌筑拱上建筑。于1966年建成。铁道部第二勘测设计院、铁道部第二工程局负责设计和施工，长沙铁道学院参加。图片附件: 无标题.jpg (2005-10-9 16:19, 178.35 K) 都安红渡桥 Hongdu Bridge都安红渡桥位于南宁至九圩公路线上，在都安县红渡跨越红水河，主孔跨径100m，主拱圈为等截面悬链线。拱矢度为1/5，拱圈厚1.7m，采用预制混凝土块代替加费时的石料。拱上建筑对称布置5个空腹拱，两边设岸孔37m，拱圈厚1.1m，桥长233.14m，桥宽7+2x1(m)。下部结构为重力式石砌墩台。该桥施工在主孔范围内设3个临时墩，上立钢支架、拱架等，其上砌筑主拱圈。砌块材料的运输，采用缆索吊装与水运相结合的方法来进行。于1965年建成。 广西交通厅设计院设计，交通部第三工程局四队施工。Location: Duan, Guangxi Prov.Main span: 100mPrecast concrete blocks5 spandral archsarranged symmetrically on each side Completed in 1965Designed by Design Institute ofCommunication Dept. Guangxxi Prov.Constructed by the 3nd Engineering Bureau, Ministry of Communications图片附件: 无标题.jpg (2005-10-9 16:22, 68.76 K) 丰都九溪沟桥 Jiuxigou Bridge丰都九溪沟桥位于四川省丰都县九溪沟，跨径为116m，建成时是世界上跨径最大的石拱桥，保持记录18年之久。桥面为净7+2x0.25(m)。主拱圈为变截面悬链线，拱顶厚1.6m，拱脚厚2.25m，拱矢度1/8。施工方法是在脚手架上分圈砌筑。于1972年建成。 四川省公路规划勘测设计院设计，丰都县地方民工组织施工。Location: Fengdu, Sichuan Prov.Main span: 116m Stone bridge with longest span in China holding world record for 8 yearsArch ring setting by layersCompleted in 1972Designed by highway Planning, Survey and Design Institute of Sichuan Prov.Constructed by Communication Bureau of Fengdu County图片附件: 无标题.jpg (2005-10-9 16:24, 90.45 K) 乌巢河桥 Wuchaohe Bridge乌巢河桥位于湖南省凤凰县沱江源头的乌巢河峡谷的县道上。乌巢河大桥全长241m，该桥因地制宜，就地取材，综合应用和发展了中国近20多年来建设石拱桥的经验，建成桥宽8m、主跨为120m的双肋石拱桥，腹拱为9孔13m，南岸引桥3孔13m，北岸引桥1孔15m。主拱圈由两条分离式矩形石肋和8条钢筋混凝土横系梁组成。拱轴线为m=1.543悬链线，拱矢度1/5，拱肋为等高变宽度。采用20MPa的小石子混凝土砌100kPa的块石；肋宽2.5m，高1.6m。该桥横向稳定，视拱肋为平面桁架组合压杆计算（k=5.36)，结构轻盈，造型美观，上部结构圬工体积为1.36m3/m2。该桥是目前世界上最大跨径石拱桥记录的保持者。于1990年建成通车。湖南省凤凰县交通局设计、施工。 Location: Fenghuang, HunanProv.Main span: 120m Stone arch bridge with longest span in the world The arch ribs connected by R.C. floor beams Completed in 1990Designed and constructed by Communication Bureau of Fenghuang County, Hunan Prov.图片附件: 无标题.jpg (2005-10-9 16:25, 109.7 K) 河源东江大桥 Heyuan Bridge over Dongjiang河源东江大桥位于广东省1922线省道河源县城郊。 该桥为6孔50m跨径悬砌拱桥，净宽7+2x1.0(m)，全长420.06m。主拱矢度1/6，空心混凝土预制块拱圈采用横向悬砌法施工。横向悬砌新工艺是将拱圈横向分成若干条拱肋，每条肋纵向又分为若干砌块。中间一条拱肋（基肋）可在简易支架上拼装，也可用缆索无支架吊装。基肋合拢后，以基肋为支承，向两侧逐肋横向悬臂拼砌，分肋合拢。横向悬砌拱的砌块有斜版式和箱式，其重心垂线都落在前一条拱肋边缘线以内，保证其施工中的稳定性。于1972年建成通车。 广东省公路勘察设计院设计，广东省公路工程处施工。Completed in 1972Designed by Highway Survey and Design Institute of Guangdong Prov.Constructed by Highway Engineering Dept. of Guangdong Prov图片附件: 无标题.jpg (2005-10-9 16:26, 57.95 K) 宜宾岷江大桥 Yibin Bridge over Minjiang岷江大桥位于四川省宜宾市，主桥为钢筋混凝土箱形拱桥，最大桥跨100m。分跨布置为55+2x100+55(m)，另有8x20m石拱桥引孔，全长532.75m。桥面净宽：8+2x2(m)人行道。主拱箱高1.6m，矢跨比1/6。全拱横向分6箱市，纵向分5段预制，缆索吊装施工。中墩基础采用钢丝网水泥薄壁浮运沉井施工。于1973年1月建成。 四川省交通规划设计院设计，四川省桥梁公司施工。Location: Yibin, Sichuan Prov.Main span: 100m 55+2100+55(m) multi-span box arch bridges Box cross section with 6 cells transversely Erected by cable craneCompleted in Jan. 1973Designed by Highway Design Institute of Sichuan Prov.Constructed by Bridge Engineering Co. of Sichuan Prov.图片附件:无标题.jpg (2005-10-9 16:28, 100.73 K)红旗桥 Hongqi Bridge红旗桥位于云南省施甸县与龙陵县交界处，跨越怒江。主孔为净跨116m钢筋混凝土箱形等截面悬线拱，两岸各为1孔27m石拱，重力式桥台。主拱圈由6根U型肋组成6个封闭箱再连成整体，全宽8.54m，矢跨比1/8,拱圈高1.9m，立拱上设每侧5孔6.5m的装配式钢筋混凝土板拱，桥面净宽7+2x0.75(m)人行道。该桥拱肋分5段预制，缆索吊装最大吊重为360kN，单肋合拢后侧拉就位，每肋拱脚处均设轴承钢铰，待6肋安装完毕形成拱圈后用35号混凝土封闭，于1974年6月竣工。后经龙陵两次7.4级地震考验，至今完好。 云南省公路规划设计院设计，云南省公路局桥工处施工。Name: Hongqi BridgeLocation: Shidian, Yunnan Prov.Main span: 116m Box cross section with 6 cessls 6 U type precast arch ribs connected as a whole by cast-in-situ top plates Erected by cable craneCompleted in June 1974Designed by Highway Planning and Design Institute of Yunnan Prov.Constructed by Highway Engineering Bureau of Yunnan Prov.图片附件: 无标题.jpg (2005-10-9 16:29, 105.67 K)闽清桥 Minqing Bridge闽清桥位于福建省闽清溪口下游横跨闽江。大桥上部构造为8x75m空腹式等截面悬链线钢丝网薄壁组合箱形拱，矢跨比1/7，由6片拱箱组成，每片拱箱分3节预制，首次采用中国制造的公路缆索架