南阳市张衡西路跨铁路立交桥工程总体方案设计.pdf

No.22023上海么绝1 59收稿日期：2 0 2 3-0 2-2 0SHANGHAICHWAYS交通工程南阳市张衡西路跨铁路立交桥工程总体方案设计张利平同济大学建筑设计研究院（集团)有限公司，上海2 0 0 0 9 2 摘要：南阳市张衡西路跨铁路立交桥工程包含主线高架、环形匝道2 座、地面桥4座、跨焦柳铁路桥1 座。针对项目场地特点，提出以机动车上跨、人非下穿的形式来跨越焦柳铁路，使人、非过铁路的距离最短，并满足非机动车的骑行需求。针对跨铁主桥与铁路斜交的特点，采用分幅转体设计，既避免了主桥跨径过大，又避免了大吨位的转体施工，降低了工程风险。现重点介绍了该项目桥梁工程的总体设计、关键节点设计，以及景观设计等情况。关键词：立交桥；总体设计；景观设计1工程概况张衡西路位于南阳市中心城区的西北部，在规划1号路（现状百里奚路）以西及车站北路以东均已建成，但在规划1 号路(现状百里奚路)与车站北路之间，由于焦柳铁路和梅溪河的阻隔，尚未贯通。为尽快缓解城市交通拥堵状况，打通焦柳铁路及梅溪河对道路的阻断，加强南阳市区内部各区域之间的快速交通，为南阳市城市化进程和各项事业的发展提供更加和谐的交通出行环境，在南阳经济跨越式发展的规划背景之下，张衡西路的建设已迫在眉睫。本工程西起现状张衡西路与规划1 号路（即现状百里奚路)交叉口以西，由西向东，依次跨越规划百里奚路、焦柳铁路、梅溪河和车站北路，向东至规划工业路交叉口以西终止，工程全长约1.7 2 0 km，见下图1。线铁路工程络点X现状街路东段）工程起点KO-040:009现状张衡路西段方图1 工程总体示意图2总体设计2.1主要控制因素主要控制因素有规划一号路、规划百里奚路、焦柳铁路、梅溪河、车站北路等。焦柳铁路线在梅溪河西侧约1 0 0 m，与车站北路基本平行。梅溪河河宽约40 m左右。2.2平面设计2.2.1方案一：车站北路设置2 条环形匝道与张衡西路主线沟通工程西起1 号路（现状百里奚路)交叉口，东至规划工业路交叉口以西侧。主线桥梁在规划百里奚路东侧起坡，由西至东，依次跨过规划百里奚路、焦柳铁路、梅溪河、车站北路，至规划工业路西侧落地。跨焦柳铁路主桥及两侧引桥均仅设置机动车道。跨焦柳铁路人非采用在主桥南、北两侧各设置一条地道下穿铁路，使人、非过铁路距离最短，并满足非机动车的骑行需求。总体平面如下图2 所示。图2 方案一总体平面效果图2023160上海么缆No.2（交通工程）SHANGHAI HIGHWAYS车站北路规划为城市快速路，交通流量大，与道路西侧地块的沟通被铁路及梅溪河阻断，交通需求难以满足。为完善交通功能，提升交通便利性，在车站北路设置2 条环形匝道，与张衡西路主线高架衔接。环形匝道位于焦柳铁路及车站北路之间，出、人口设在张衡西路至车站北路的地面交叉口范围内，利用地面交叉口，实现各个交通方向的转向功能。本方案可实现张衡西路与车站北路的互通，但该处为现状刘庄市场，征迁工程量较大。在张衡西路跨铁路主桥西侧设置一对八字形匝道接口，预留规划百里奚路与张衡西路主桥衔接的条件。由于车站北路环形匝道、规划百里奚路八字形匝道与主线分合流，需设置加减速车道，主线跨铁路桥面也需加宽。为降低主线跨铁路桥梁施工难度，该段桥梁采用分幅设计。2.2.2方案二：车站北路与张衡西路衔接通过周边路网绕行如下图3 所示，工程西起1 号路（现状百里奚路）交叉口，东至规划工业路交叉口以西。主线桥梁在规划百里奚路东侧起坡，由西至东，依次跨过规划百里奚路、焦柳线、梅溪河、车站北路，至规划工业路西侧落地。跨铁路处净空不小于8.3 m。考虑到非机动车的纵坡及坡长限制，跨线主桥、引桥均仅设置机动车道，跨越铁路处人非采用在主桥南、北两侧各设置一条地道下穿铁路，随后与梅溪河岸边小路平交后接车站北路，使人、非过铁路距离最短，并满足非机动车的骑行要求。车站北路交通通过周边路网（车站北路-张衡西路北侧支路-人民路-张衡西路，张衡西路-工业路-范蠡路-车站北路)绕行后，再与主线高架联系。图3 方案二总体平面图从工程规模、主要节点交通功能、占地拆迁、施工期间对交通的影响及工程造价等，对以上2 个方案进行了综合比选，见下表1。考虑到交通功能的匹配、交通的便利性、与周边地块出人口的衔接、线形指标，以及对周边路网的影响，方案一的综合优势非常明显，故选为本项目的推荐方案。表1 方案比选表序号项目方案一方案二1张衡西路一车站北路节点交通功能可实现各方向互通与张衡西路西侧沟通需绕行，增加周边路网交通负荷2交通功能好差3拆迁面积38 199 m9 067 nf4建安费5.5（亿元）4.87（亿元）3技术标准（1)道路等级：城市主干路。(2)设计车速：主线：6 0 km/h；匝道：3 0 km/h。（3）最大纵坡：4.0%（机动车）、3.5%（非机动车），最小纵坡0.3%。（4)桥面横坡：主线高架采用2.0%双向坡，匝道标准段采用2%单向坡、局部路段设超高。(5)道路净空要求：上跨铁路不小于8.3 m，跨越其它道路机动车道不小于4.5m，人行道、非机动车道下穿铁路不小于3 m,其他不小于2.5m。(6)标准宽度：主线高架2 5.5m=0.5m防撞护栏+11.5m行车道+1.5m中分带+1 1.5m行车道+0.5m防撞护栏；匝道1 0.5m=0.5m防撞护栏+9.5m行车道+0.5m防撞护栏。(7)荷载标准：汽车荷载为城A级；人非荷载按城市桥梁设计规范（CJJ11-2011)第1 0.0.5 1 0.0.6 条取用。(8)桥梁设计基准期：1 0 0 年。(9)桥梁结构设计使用年限：主线及匝道1 0 0 年；地面桥50 年。(10)桥梁防洪设计标准：张衡西路主线位置、梅溪河1 0 0 年一遇洪水位为1 2 6.1 3 m；跨梅溪河地面桥桥2023No.2上涵2 晚1 6 1SHANGHAI HIGHWAYS交通工程下净空，支座垫石顶面高出设计洪水位0.2 5m，梁底高出设计水位0.5m。4桥梁方案设计4.1跨铁主桥总体方案根据铁路部门相关规定，上跨铁路桥梁施工应优先采用转体施工方案，因此不考虑常规的预制吊装方案。本工程按转体方案进行设计。根据铁路现状及转体施工的特点，考虑下部承台边缘与铁路线之间、上部梁体结构沿铁路方向预制期间、结构外缘与铁路线之间，均应预留一定的安全距离，因此采用（2 6 4)m连续刚构跨越焦柳铁路，通过分幅转体法进行施工，单幅桥宽2 0.2 m，两幅之间间距0.3m。主梁采用整体性强、抗扭刚度大、行车舒适的现浇预应力混凝土大箱梁，根部梁高6.4m，端支点梁高2.8 m。两幅桥梁分别在铁路东西两侧，沿铁路方向搭设满堂支架现浇梁体。待梁体混凝土达到设计强度后，分别顺时针转体至设计桥位。跨铁主桥总体布置如下图4所示。6464左幅立面64642平面6464右幅立面6464图4主线上跨焦柳铁路桥梁总体布置示意图（单位：m）4.2跨梅溪河桥梁总体方案依据规范第4.3 条，本项目的公铁并行等级为IV级，平面与铁路路基间距的最小值为1 5m，一般值为25m，极限值为1 0 m。一般情况下，公铁并行间距不宜小于一般值。受限于梅溪河和车站北路的影响，本项目按照最小值1 5m控制，故需进行公铁并行交通安全性评价。北侧环形匝道的最小圆曲线半径为6 1 m，南侧环形匝道的最小圆曲线半径为6 5m。上部结构标准联采用整体性强、抗扭刚度大、抗倾覆稳定性好的现浇钢筋混凝土箱梁，标准跨径2 4m，梁高1.8 m。梅溪河宽约40 m，匝道及人非跨河地面桥可采用钢梁一跨过河，也可采用混凝土连续梁两跨过河。若采用钢梁，则防洪性能更好，但耐久性差，管养维护困难。若采用混凝土连续梁，则需在河中立墩，防洪性能稍差，相比于钢梁，施工稍麻烦，但后期管养维护简单、且造价节省。综合考虑耐久性、造价等因素影响，决定地面桥均采用两跨现浇板梁，梁高1.2 m。河中墩柱采用圆柱墩，4座匝道及人非地面桥的河中墩柱与环形匝道的河中墩柱位于直线上，以减少行洪阻力。5景观设计高架桥作为城市交通设施的重要组成部分，以线性分布的形态置身于城市之中，广泛参与城市居民的生活,拥有着交通空间和公共空间的双重属性 2 。因此，城市高架桥在保证城市运行效率的同时，可凭借其景观特征属性，进行“景观化”设计，进而成为激励和支持城市公共空间发展的媒介。本项目以南阳市花一一月季为基本概念，从颜色、线型以及种植设计等多方面，深入挖掘，并融人到场地设计中去。项目提取月季花色，进行口袋公园内的道路铺装设计；提取月季花图案线型，进行场地布置设计；利用月季花，进行公园内的植物设计。结合项目周边用地，打造一个集生态绿化、运动休闲为一体的全龄化城市活力公园，见下图5。在提升城市局部环境品质和功能的同时，将以往无人问津的荒废土地变成了居民喜爱的公共空间。桥下空间也实现了从“灰色”到“彩色”的华丽转身。图5张衡西路跨铁路立交桥口袋公园效果图2023No.2162上2 路上接第1 58 页交通工程SHANGHAI HIGHWAYS-6结语目前，南阳市张衡西路跨铁路立交桥工程已完成施工图设计工作。该项目位于城市西北部，是张衡西路全线贯通的关键节点，承载着城市中心区交通对外疏散的重要功能，其建成将有利于进一步推动焦柳铁路线两侧片区建设的进程。对于充分发挥政府职能，加快当地经济社会文化事业的发展，促进全市经济和新建道路总长1 0.7 0 4km。其中，道路长6.0 7 6 km，桥梁长2 0 7 2.6 4m（8 处），隧道长2 555m（6 处）。起点一花红园段，路线长6.8 km；最小半径R=198.75m，缓和曲线最小长度L=50m，平曲线最小长度L=152.602m；路基段最大纵坡6%，隧桥段最大纵坡4%，最小纵坡2.8%，平均纵坡3.9 3%。花红园一浑团公路段，路线长3.9 0 4km；最小半径R=190m,缓和曲线最小长度L=50m，平曲线最小长度L=151.019m；最大纵坡6.8%，最小纵坡0.45%，平均纵坡3.2%。线路沿线辐射范围为：昭宗村、大华片区、花红园、筑竹寺、郊野公园、雨花、团结街道。4结语本文以西山区兴团大道为案例，为山区城市干路选线方案提供参考。随着城市边界的扩展，道路选线社会的健康协调发展，具有十分重要的意义。参考文献：1中华人民共和国交通运输部.公路铁路并行路段设计技术规范：JT/T1116-2017S.北京：人民交通出版社,2 0 1 7.2翟俊.协同共生：从市政的灰色基础设施、生态的绿色基础设施到一体化的景观基础设施 J.规划师,2 0 1 2,2 8(0 9):7 1-7 4.是山区城市道路路线设计最根本的问题，特别是复杂地形及控制条件下的路线。研究路线方案时，应力求选择适当的技术指标，以保证行车的安全与舒适。在保证通行能力的同时，也应在充分考虑线路衔接点选择、断面布置、沿线控制条件处理等问题后，进行选线方案的研究。在满足方案可行的同时，还需考虑工程经济性。在实现环保、和谐、经济的原则下，最大限度地为整个社会的发展带来最大效益。参考文献：1中华人民共和国住房和城乡建设部.城市道路路线设计规范：CJJ193-2012S.北京：中国建筑工业出版社,2 0 1 2.2中华人民共和国住房和城乡建设部.城市地下道路工程设计规范：CJJ221-2015S.北京：中国建筑工业出版社,2 0 1 5.3】中华人民共和国交通运输部.公路路线设计规范：JTGD20-2017S.北京：人民交通出版社股份有限公司,2 0 1 7.CHENXi(129)creasingly prominent.This article analyzes the polymer grouting technology and its three elements on highways,elaborates on the appli-cation scope and process of polymer grouting technology,and provides its application,construction examples,and treatment effects onhighways nationwide,especially in Anhui Province.It explores new methods for highway pavement maintenance and distress detectionand repair,with the aim of making some contributions to the improvement of the service life of highway pavement in China.Key words:polymer grouting technology;expressway maintenance and repair;applicationResearch and Application on Design of Aging Items for Chongqing South Road Pedestrian Bridge in ShanghaiAbstract:Chongqing South Road pedestrian-bridge is one of the first projects for accessibility,and also the first aging item.First ofall,through the introduction of the pedestrian-bridge geographical location,the necessity of this project is described.Secondly,the def-inition,objectives and 6 characteristics of the project are clarified,3 design stages are divided,and 6 design principles are summarized.The roles and tasks of each discipline are clarified by sorting out the design guidelines.Thirdly,based on the 6 design principles,theflow chart of overall design steps is constructed,and 10 major design links are summarized.Fourthly,through the analysis of six as-pects of the current situation,the advantages and disadvantages of the west side and the east side schemes are compared.Finally,6 highlights of humanized design and 6 major application considerations are introduced.Research conclusion will provide engineeringexperience and practical support for the continuous improvement of aging items of foot bridges.Key words:first construction;foot bridges;aging items;overall design research;applicationPractice of Road Congestion Management in Baoshan Wusong Innovation City AreaAbstract:In order to assist in the construction of the main battlefield and industrial park of Baoshan Science and Technology Innova-tion Center,and solve the problem of traffic congestion in key areas,research has been carried out on key road traffic congestion controlmeasures.By conducting research and analysis on the current traffic situation,such as the scale of road facilities,intersection channel-ization,and signal timing,we summarize the current traffic operation problems,propose traffic optimization and improvement measures,such as intersection channelization transformation and bottleneck section widening.We also compare and evaluate the road operationbefore and after the road improvement,and analyze the improvement effect.Key words:traffic congestion;intersection channelization;traffic management;traffic assessmentStudy on node scheme of Taiyuan Renmin Road bridge across Xiao RiverAbstract:We have divided the bridge connection into three types:intercommunication,separation and level crossing,and studied theapplicable occasions.The traffic function of bridge is based on the connection project.The program of connection is complex and inde-pendent,which is restricted by four factors including planning,site conditions,investment scale and environment.Taking the RenminRoad Cross Xiao River Bridge Project in Taiyuan as an example,this paper is oriented to solve the traffic problems in the main flow di-rection,and analyzes design scheme from the perspectives of traffic function,planning adaptability,landscape coordination,short-termand long-term combination,investment scale.It is recommended that the bridge connection be in the form of a partial interchange.This paper sorts out the design ideas through specific cases,aiming to provide a reference for the design of similar projects.Key words:bridge across the river;bridge connection scheme;traffic analysis;partial intercommunicationRoute Selection Scheme of Urban Roads under Complex Terrain and Control Conditions:Taking Xingtuan Avenue,Xishan District,Kunming City as an ExampleAbstract:With the expansion of urban boundaries,more and more urban roads need to be arranged under complex terrain and controlconditions.Road route selection is an important part of their design,and the rationality of the route is directly related to the quality,en-gineering cost,safety,and stability.Taking Xingtuan Avenue in Xishan District as a case study,this paper conducts research on routeselection schemes from multiple perspectives such as line connection point selection,section layout,technical standards,safety,andcontrol conditions,providing reference for route selection schemes for urban trunk roads in mountainous areas.Key words:route selection of main roads in mountainous areas;complex terrain and control conditionsOverall Plan Design of the Railway Interchange Project Crossing Zhangheng West Road in Nanyang CityAbstract:Nanyang Zhangheng West Road Railway Crossing Flyover Project includes the main line viaduct,2 ring ramps,4 groundbridges and the Jiaozuo-Liuzhou railway crossing bridge.According to the characteristics of the project site,it is proposed to cross Ji-aozuo-Liuzhou railway in the form of motor vehicles spanning up and people not crossing down,so as to minimize the distance betweenpeople and people not crossing the railway and meet the riding needs of non-motor vehicles.In response to the characteristics of theoblique intersection between the main bridge and the railway,a segmented swivel design is adopted,which not only avoids excessiveLI Xiaoyun(138):FANGZengyao,LIYucong(146)ZHOUJiajie(154):ZHANG Liping(159):JINChen,CAI Yang(167)span of the main bridge but also avoids large tonnage swivel construction,reducing engineering risks.This article focuses on the overalldesign,key node design,and landscape design of the bridge project.Key words:nterchange;overall design;landscape designSummary of Decision Techniques for Optimizing the Management of Multi facility Assets in Transportation InfrastructureWANG Zihan,Peng Kun,WANG Lianfang,JIN Yanbiao,CHEN Chang(163)Abstract:Multi facility asset optimization management is the core part of asset management.In traditional transportation infrastruc-ture management,there is a general emphasis on managing a single facility,ignoring the networked and holistic characteristics of theentire system,resulting in a low level of asset optimization management for multiple facilities.This article summarizes the relevant re-search on facility asset management and decision-making technology based on transportation infrastructure both domestically and in-ternationally,providing reference for the subsequent development and practical application of multi facility asset optimization manage-ment decision-making technology,in order to better achieve effective management and enhance the value of transportation infrastruc-tureassets.Key words:infrastructure;asset management;multiple facilitiesResearch Progress of Distributed Optical Fiber Strain Sensing Technology in Traffic Infrastructure MonitoringAbstract:The safety of transportation infrastructure is related to the safety of human life and property.Real time understanding of itshealth status is an important guarantee for the safety and reliability of transportation infrastructure.This paper summarizes the classifi-cation of distributed optical fiber sensing technology.Based on the distributed optical fiber strain sensing technology,it analyzes andsummarizes the key technical issues such as optical fiber packaging,layout,coordination mechanism,data analysis,and focuses on itsengineering applications in roads,bridges,and tunnels.Finally,future study in related issues was previewed.Key words:transportation infrastructure;distributed optical fiber;strain monitoring;key problemEstablishment of a High-quality Municipal Facility Maintenance and Management Mode:-Abstract:The core area of Hongqiao Business District,as the venue for hosting the CIIE,has been constantly advancing to new levelsin the maintenance and management of municipal facilities under the guidance of the requirement of improving year by year.It hasbuilt a high-quality municipal facility maintenance model with integrated maintenance,professional operation,and high standard im-plementation,making due contributions to urban fine management and service guarantee for the CIE.The relevant experience can pro-vide reference for the management and maintenance work of similar projects.Key words:service requirements for the CIIE;maintenance and management of municipal facilities;innovative mode of high-qualitymaintenance and managementAnalysis of Construction Technology and Quality Defects of Bored Pile:Abstract:As an important foundation treatment method,bored pile is widely used in engineering construction.Based on the researchon the construction technology and quality control of bored pile,a systematic exploration and summary are conducted.Firstly,the basicconcept and classification of bored pile were introduced,and then the construction process was elaborated in detail.On this basis,thequality control is discussed.Finally,through case analysis,the feasibility and practicality of the proposed construction process andquality control of bored piles were further verified.Key words:bored pile;construction technology;quality control;case analysisWANG Guofeng(174)XUEYeye(177)First Published in 1982广告目次Sponsor:SRAB and SHTSChief Editor:WU QingfengAddress:25/F,NO.2,Lane 1040.Caoyang Road,Shanghai ChinaPost Code:200063 Telephone:[phone]E-mail:shglshts.orgChina Standard Serial Numbering:中远海运科技股份有限公司上海卡罗网络科技有限公司上海电科智能系统股份有限公司ISSN1007-0109CN31-1712/U封2封3封底