39results about How to "Guarantee joint force" patented technology

The invention discloses an efficient and economical ETC door frame adding structure and a construction method thereof, belongs to the technical field of road traffic facility adding, and solves the problems of low efficiency and long period of ETC door frame adding construction in the prior art. The anti-toppling guardrail specifically comprises an existing guardrail, a mounting structure and an anti-toppling structure, the existing guardrail comprises guardrail stand columns and wave-shaped beam plates, and the wave-shaped beam plates are installed between the guardrail stand columns. The installation structure comprises a cross beam and a longitudinal beam, and the cross beam is installed between the guardrail stand columns on the two sides. The longitudinal beams are mounted between the two adjacent cross beams; flange plates are arranged on the cross beams; the ETC door frame comprises a door frame body and door frame stand columns. In the invention, the portal stand columns are bearing structures of the portal main body, and the acting force of the portal stand columns is transmitted to the guardrail stand columns on the two sides through the cross beams and the longitudinal beams to be shared together; the portal stand columns are additionally installed in a splicing mode, the construction efficiency is improved, it can be guaranteed that traffic is not interrupted in the construction period, and meanwhile potential safety hazards caused by foundation pit excavation are avoided.