中国桥梁大全2

连续刚构桥 Continuous Rigid Frame Bridges 1 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: 140m 85+140+85+42(m) P.C. continuous rigid frame bridge in the reservoir district of a water electric station Erected by cantilever casting combined with incremental launching method Completed in 1991 Designed 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: 76m Chinas 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 service Completed in March 1992 Designed 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 casting Completed in Sept. 1993 Designed 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 scaffoldings Completed in Nov. 1992 Designed 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 Bridge 2 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 bridge Completed in 1959 Designed 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: 60m Stone bridge with longest span in 1950s China Arch ring setting by layers Hollow abutment Completed in 1959 Designed 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 bridge Building firstly in China arch ring on splint timber arch falsework Completed in 1960 Designed 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: 90m 60+90+60(m) multi-span stone arch bridge Building arch on steel truss falsework, supported by temporary piers Completed in 1961 Designed 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: 112.5m Rough hewn stone arch bridge Arch ring stone arch bridge Foundation on “Karst“ stratum Completed 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: 100m Precast concrete blocks 5 spandral archs arranged symmetrically on each side Completed in 1965 Designed by Design Institute of Communication 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 years Arch ring setting by layers Completed in 1972 Designed 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 1990 Designed 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 1972 Designed 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 crane Completed in Jan. 1973 Designed 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 Bridge Location: 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 crane Completed in June 1974 Designed 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 桥设备吊装。桥梁全长 733.70m，桥宽 9+2x1.0(m)人行道。沉井 基础，底节钢壳浮运，沉井总高 20m。4 号墩为圆形防爆墩，可承 受单向推力。于 197