水运工程
水運工程
수운공정
PORT & WATERWAY ENGINEERING
2013年
8期
147-151
,共5页
人字闸门%预应力%背拉杆%浮箱%扭矩
人字閘門%預應力%揹拉桿%浮箱%扭矩
인자갑문%예응력%배랍간%부상%뉴구
miter gate%prestressed%back-tie rods%floating box%torque
大型船闸人字闸门因门体较高、启闭时雍水阻力及风阻力较大，背拉杆大多采用预应力结构。为延长其顶底枢的使用寿命，常在最低通航水位以下设置浮箱。结合下坝复线船闸，先介绍预应力背拉杆及浮箱的布置形式，再着重引入美国陆军工程师兵团SHERMER C L提出的理论进行设计计算，最后对有浮箱结构的人字闸门背拉杆预应力施加方法进行探讨。
大型船閘人字閘門因門體較高、啟閉時雍水阻力及風阻力較大，揹拉桿大多採用預應力結構。為延長其頂底樞的使用壽命，常在最低通航水位以下設置浮箱。結閤下壩複線船閘，先介紹預應力揹拉桿及浮箱的佈置形式，再著重引入美國陸軍工程師兵糰SHERMER C L提齣的理論進行設計計算，最後對有浮箱結構的人字閘門揹拉桿預應力施加方法進行探討。
대형선갑인자갑문인문체교고、계폐시옹수조력급풍조력교대，배랍간대다채용예응력결구。위연장기정저추적사용수명，상재최저통항수위이하설치부상。결합하패복선선갑，선개소예응력배랍간급부상적포치형식，재착중인입미국륙군공정사병단SHERMER C L제출적이론진행설계계산，최후대유부상결구적인자갑문배랍간예응력시가방법진행탐토。
The application of prestressed back-tie rods in the large-scale miter gate can increase the torsional rigidity .Combining with the Xiaba multiline lock, the paper introduces the arrangement form and the calculating theory which is put forward by the U.S. Army Corps of Engineers SHERMER C L, and discusses the choice of the parameters and calculation process. Moreover, it investigates the application of prestress to the back-tie rods. The result shows that the calculating theory of the prestressed back-tie rods is feasible. It may serve as reference for related engineering calculations, construction and maintenance.
