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What factors affect the friction coefficient of friction pendulum ball bearings for highway bridges
2025-08-19Friction pendulum ball bearings (FPS bearings) for highway bridges are a new type of seismic isolation bearings suitable for large-span and high seismic demand bridges. Their core characteristics revolve around three dimensions: seismic isolation performance, bearing capacity, and adaptability, as follows:
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What are the applications of modular single joint expansion devices on urban bridges
2025-08-12Modular single joint expansion devices are widely used in urban bridges, and their design features (suitable for small and medium displacement, compact structure, and good driving smoothness) are highly compatible with the operating environment and functional requirements of urban bridges. The main application scenarios include the following:
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What are the applications of comb plate expansion device in bridge reconstruction
2025-08-05The comb plate expansion device is one of the important types of bridge expansion devices. Its core structure is composed of multiple sets of steel comb plates that mesh with each other. The relative displacement of the comb teeth is used to adapt to the longitudinal, transverse, and vertical displacement of the bridge caused by temperature changes, vehicle loads, foundation settlement, and other
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Why is it said that the seismic performance of spherical bearings on railway rail transit bridges is
2025-07-29The excellent seismic performance of spherical bearings on railway rail transit bridges is determined by their structural design, working principle, and material properties. Especially when dealing with horizontal displacement, rotation, and vibration loads caused by earthquakes, they can reduce damage to bridge structures through multiple mechanisms. The specific reasons are as follows: 1. Flexi
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What are the applications of spherical bearings for railway rail transit bridges on ramp bridges
2025-07-22The application of spherical bearings in railway rail transit bridges on ramp bridges mainly relies on their unique structural characteristics (which can achieve multi-directional rotation, adapt to vertical and horizontal forces), and solve the special stress, displacement, and stability problems caused by the slope of ramp bridges. The specific applications are reflected in the following aspects
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In which industries is the ordinary noise reducing comb plate expansion device used
2025-07-15The ordinary noise reducing comb plate expansion device is mainly used in the transportation engineering industry, and also has certain applications in the construction engineering industry, as follows: 1. Bridge construction industry: Ordinary noise reducing comb plate expansion devices are widely used in various types of bridges, including straight bridges, curved bridges, inclined bridges, slo
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Briefly describe the characteristics of spherical bearings for railway rail transit bridges
2025-07-08The spherical bearing of railway rail transit bridges is a key load-bearing component that connects the upper and lower structures of the bridge. It is designed to adapt to the load characteristics, displacement requirements, and vibration environment of railway bridges. Its core features are as follows:
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What are the applications of the axial multi-directional displacement comb plate expansion device on
2025-07-01The axial multi-directional displacement comb plate expansion device is widely used in highway bridges, mainly reflected in the following aspects: 1. Adapt to bridge displacement: Highway bridges may experience longitudinal, horizontal, and vertical displacement due to factors such as temperature difference, wind force, and vehicle loading. The axial multi-directional displacement comb plate expa
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