Q355B Steel Semi Rigid Beam Column Connection Joint For Frame Brace Structural Systems

Product Description
A Semi-Rigid Beam-Column Connection Joint is a balanced structural node solution that combines the flexibility of hinged connections and the rigidity of rigid connections, designed for frame-brace structural systems. Manufactured with Q355B high-strength steel (end plate and angles) and 10.9 grade high-strength bolts, this product achieves adjustable rotational stiffness by optimizing end plate thickness (12-25mm) and bolt arrangement, adapting to different structural load requirements. The joint features excellent energy dissipation capacity—under seismic action, it absorbs energy through controlled bolt slip and end plate deformation, reducing structural damage and improving seismic performance (suitable for seismic intensity zones 6-8 degrees). The factory prefabrication rate of 90% ensures component precision (dimension error ≤±1mm) and reduces on-site construction time by 40% compared to welded rigid nodes. The open node design facilitates pipeline penetration and maintenance, increasing space utilization by 20%. The surface is treated with anti-corrosion paint (epoxy primer + topcoat) or hot-dip galvanizing, providing salt spray resistance ≥1000 hours and a service life exceeding 40 years. It complies with GB 50017-2017 and AISC 360 standards, suitable for multi-story industrial workshops, office buildings, residential buildings, and commercial complexes. Installation requires only bolt tightening with torque wrenches, no on-site welding, and construction quality is easy to control. Professional services include rotational stiffness calculation, BIM modeling optimization, and on-site installation supervision, ensuring the joint integrates perfectly with the frame structure.

Applications
Semi-Rigid Beam-Column Connection Joints are versatile node solutions designed for multi-story frame structures, balancing structural efficiency and seismic performance. Certified by GB 50017-2017 and ISO 9001, they meet domestic and international structural standards, ensuring reliable performance in medium-load and seismic-prone scenarios. These joints are suitable for diverse applications, including multi-story industrial workshops (3-10 stories), office buildings and commercial complexes (frame structure), residential buildings (steel frame houses), school and hospital frame structures (seismic requirements), and small-span warehouses (span 10-20 meters). They are particularly ideal for projects where rigid connections are over-designed and hinged connections lack stability, such as mid-rise buildings and industrial facilities with moderate load requirements. The minimum order quantity is 5 sets for standard specifications (compatible with H-beam sizes H200×100-H400×200), and customized solutions are available for end plate thickness, bolt quantity, and rotational stiffness to meet specific structural design needs. Competitive pricing and bulk purchase discounts (for orders over 50 sets) enhance cost-effectiveness, while the delivery time (7-15 workdays for prefabricated nodes) supports multi-story building construction schedules. With a monthly supply capacity of 1,500 sets, the manufacturer ensures timely delivery even for large-scale residential and industrial projects. The high-strength steel material and anti-corrosion treatment ensure durability in urban, suburban, and industrial environments, from dry office buildings to humid workshops. Customization options also include high-seismic grade optimization (up to 9 degrees) for earthquake-prone areas and corrosion-resistant upgrades (fluorocarbon paint) for coastal buildings. Whether it's for new multi-story construction or old frame structure renovation, the Semi-Rigid Beam-Column Connection Joint delivers balanced and efficient node performance.