Lingshui bridge laminated rubber bearing - Lingshui Branch Chia Tai Rubber Manufacturers

CP Our strong technical force, testing equipment, and always adhere to the "first-class product, first-class service, first-class quality, first-class reputation" for the purpose of serving the customers, sincerely hope that all the friends get the support and cooperation, welcome friends visit! Chia Tai Rubber Factory order to provide our customers with better services, provide customers with more respect and efficient ordering, consulting service for our customers to inquire, to provide quality services, to answer your doubts or technical problems, welcome customers to inquire and order. The first chapter of the first section of bridge supports the role of bridge abutment connection is an important structural component superstructure and substructure of the bridge. It will bridge superstructure reaction force and deformation (displacements and rotations) reliable delivery to the bridge substructure, so that the actual situation and calculated the force structure in line drawings. Bridge bearings must be met at the functional requirements. First bridge bearings must have sufficient carrying capacity to ensure safe and reliable delivery support reactions. Secondly bearing on bridge deformation (displacements and rotations) shall be bound as small as possible to accommodate the beam to rotate freely scalable and needs. Also bearing should be easy to install, maintenance and repair, and replace if necessary. Reaction force acting on the bearing, displacements and rotations in the Cartesian coordinate system with six power respectively (Fx, Fy, Fz, Mx, My and Mz) and 6 displacement (Vx, Vy, Vz, γx, γy and γz) to represent, representation shown in Figure 1-1. Selection bearing types must be determined mounts endurance and deformation of freedom. And because the holder of displacements and rotations, will generate additional bearing reaction force, so that the size and support reaction force acting direction change accordingly. To do this we need to design different types of bridge bearings, such as: roller bearings, sliding bearings, rocker shaft bearings and laminated rubber bearings, etc., to minimize displacement due to the bearing and the additional force generated by the rotation . Section bridge bearing free seat by the possibility of deformation, respectively, according to the materials or three methods of classification by structure type. Press bearing deformation possibility Category: fixed support: the reaction force containing Hx, Hy and N, deformation degrees of freedom γx and γy; individual bearing activities: trans force Hx and Hy and N or N, deformation degrees of freedom Vx or Vy, γx and γy; multidirectional bearing activities: reaction force is N, deformation degrees of freedom Vx, Vy, γx and γy. Press bearings with the material classification: steel bearing (bearing flat, curved seat, rocking shaft bearing and roller bearing): The seat of power transmission through steel contact surface. Bearing displacement primarily through steel and rolling and sliding steel to achieve. Teflon bearing (sliding bearing): The seat with PTFE plate and stainless steel plate as the sliding surface bearing, which is much smaller than the coefficient of sliding friction steel on steel sliding friction. Rubber bearing (laminated rubber bearing, rubber bearing basin, PTFE laminated rubber bearing): The seat of power transmission through the rubber sheet to achieve. Bearing displacement by cutting PTFE plate sliding or rubber to achieve, bearing angle through rubber compression to achieve. Concrete support (concrete hinge bearing). Lead bearing: power transmission parts made of hard lead. By structure type is usually divided into arcuate bearing seat, rocking shaft bearings, roller bearings, laminated rubber bearings, PTFE laminated rubber bearings, pot rubber bearings, spherical bearings and so on. Bearing is a high stress structural components. Superstructure load bearing concentrated by acting on a small area, due to the different types of bearing structure, bearing reaction force of the force flow distribution shown in Figure 1-2. Roller bearing reaction force through the rollers in contact with the rolling plane of the power transmission line portion, the force flow generating significant stress concentration, thus requiring the contact surface can withstand the high contact stresses. The laminated rubber bearings, pot rubber bearings and spherical bearings and other bearing reaction force transmission, transfer to a plane by plane, smooth power transmission, power flow necking does not occur, so it is a reasonable transfer power mode.