Road bridge material

The installation of basin bearings in bridge construction has been smoothly promoted to help the construction of transportation infrastructure 

Recently, the installation of basin bearings in Gaoyi, Shijiazhuang is in full swing, and the scene is a busy scene. As a key link in the project, the installation quality of the basin bearing is directly related to the stability and safety of the entire project, which has received great attention from all parties.

The role of the basin bearing installed this time is crucial. The basin bearing is equivalent to the "joint" of the bridge, which can support the huge weight of the beam body and accurately transmit all kinds of loads borne by the superstructure to the piers and foundations, ensuring the safe and stable operation of the bridge in various complex environments and traffic loads.

In order to ensure the smooth development of the installation of basin bearings, the construction team made a lot of sufficient preparations in the early stage. Professional and technical personnel studied the construction drawings in detail, accurately measured and surveyed the site, and fully understood the bridge structure, original support condition and surrounding environment. At the same time, the specifications, models, and quality of the new bearings were comprehensively and meticulously inspected to ensure that each bearing met the design requirements.

During the installation process, the construction personnel strictly follow the standardized process. First of all, the jack is arranged in the appropriate position of the beam body, the beam body is jacked synchronously, and the jacking height is controlled within the appropriate range that can just take out the old support. Subsequently, cut off the connection between the old bearing and the beam body and the pier, carefully use lifting equipment to lift the old support, and thoroughly clean the surface of the pier cushion, remove debris, dust, etc., and repair the defective cushion in time. Then, according to the design requirements, the bearing position line is accurately released on the cushion stone, and the new bearing is accurately placed on the cushion stone, so that the center line of the support and the center line of the cushion stone coincide perfectly, anchor bolts are installed, the bearing and the pier are preliminarily fixed, and then the support grouting material is poured. After the grouting reaches the design strength, tighten the anchor bolt nut to ensure that the bearing is installed stably. Finally, the beam body is slowly lowered synchronously to evenly transmit the beam load to the new bearing, and the deformation of the bearing is continuously monitored during the beam falling process to ensure that nothing goes wrong.

During the entire construction process, the site management was in order. A special safety warning area has been set up at the construction site, and special personnel have been arranged to be responsible for traffic control, and warning signs have been set up to guide the safe passage of passing vehicles and pedestrians. At the same time, the site is also equipped with experienced technical experts to provide on-site guidance on installation and construction at any time to ensure that every construction link meets technical standards and quality requirements. The construction team members cooperated closely, and the jacking operators, surveyors, equipment operators, etc. performed their duties to form an efficient work force.

At present, the installation of basin bearings has been completed [50]%, and the overall progress is smooth, and all technical parameters meet the requirements of the design documents. It is expected that the installation of all basin bearings will be completed by May. The smooth progress of the installation of the basin bearing has laid a solid foundation for the subsequent construction of the basin bearing in Gaoyi, and will also provide a strong guarantee for the early completion and opening of the project to serve the society. In the future, the construction team will continue to uphold a rigorous and responsible attitude and strictly control the construction quality.