Q: What are the uses of Q345 steel in subway and tunnel engineering?
A: Tunnel steel arch frames, support steel, subway station steel structures, and embedded load-bearing components.
Q: Can Q345 steel be used in tower cranes and construction hoists?
A: Q345 steel is widely used in tower crane standard sections, booms, support bases, and hoist main frames.
Q: Is Q345 steel suitable for steel structure canopies and connecting corridors?
A: Q345 steel is essential for large-span and cantilevered canopies, as its strength far exceeds that of Q235, and its safety factor is higher.
Q: What are the uses of Q345 steel in reservoir and dam steel structures?
A: Gate steel frames, hoist supports, dam protection steel structures, and water diversion pipeline supports.
Q: Where is Q345 steel used in prefabricated buildings?
A: Precast steel components, prefabricated beams and columns, modular building frames, and spliced load-bearing structures.
Q: Can Q345 steel be used in the restoration of ancient buildings?
A: It can be used as a hidden load-bearing reinforcement frame and an antique-style steel structure component. After corrosion protection, it will not rust or deform.