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双铰底板是近年来出现的一种新的底板型式,在船闸、船坞及水闸上得到了愈来愈多的应用。 具有双铰底板的船闸闸室结构,是介于分离式闸室与连底式闸室之间的一种闸室结构型式(图1)。一方面,由于中间底板与闸墙前趾之间为铰接,它们相互间只传递水平推力与竖向剪力,不传递弯矩,因而双铰底板闸室与分离式闸室一样,闸墙不向中间底板传递弯矩,使中间底板弯矩减小,从而减小了中间底板的厚度与钢筋用量。另一方面,由于中间底板与
Double hinge plate is a new type of bottom plate appeared in recent years. It has been applied more and more in ship locks, docks and sluices. A ship lock chamber structure with a double hinged floor is a type of chamber structure (FIG. 1) between the separated gate chamber and the bottom chamber chamber. On the one hand, since the middle floor and hinges between the front toe of the sluice wall are hinged, they only transmit horizontal thrust and vertical shear force to each other, and no bending moment is transmitted, so that the double-hinged sluice gate chamber is the same as the separate sluice gate, The moment is transmitted to the middle floor, so that the bending moment of the middle floor is reduced, thereby reducing the thickness of the middle floor and the amount of steel. On the other hand, due to the middle floor and