波浪主控荷载下桩基箱梁式引桥设计

为满足宁波梅山港区滚装码头90%船舶全天侯作业要求，码头引桥面较低。由于工程区波浪较大，所以引桥设计的主控荷载由车辆荷载变为波浪荷载。为使引桥抵抗波浪的上托、下砸和侧推作用，设计采用双向受力预应力箱梁、横向刚度前弱后强的桩基排架和波浪荷载传力装置，实现了在低高程和大波浪条件下的桩基箱梁式引桥设计，各项指标均满足规范要求。总结其设计方法及经验。

Design of pile-girder type approach jetty under master control wave load

To meet the requirement of all-weather operation for 90% vessels in ro-ro wharf of Ningbo Meishan port,the elevation of wharf and approach jetty is low.Because of the large wave in the engineering area,the master load of the jetty turns to be the wave load instead of the vehicles load.To resist the uplifting,down-falling and horizontal thrusting forces from the wave,the design adopts the bi-directional-loaded prestressed girder,the front-weak & back-strong pile bents and wave load transmitting device to realize the design of pile-girder type approach jetty with low top-elevation and large wave.All indices meet the requirement of the standards.The design method and experience are summarized.