System Brief

The urban integrated pipe gallery is also known as the common ditch. It is a municipal public tunnel space built underground in the city to centrally lay municipal public pipelines such as electricity, gas, communication, heating, water supply and drainage in a structure according to the planning requirements. Unified planning, design, construction and management. Completely change the messy situation of the previous construction and management of each pipeline. There is no need to excavate the road when the line pipe needs to be repaired. The maintenance personnel and engineering vehicles only need to enter the underground pipe gallery from the maintenance channel to construct. It does not affect the road traffic, and can reduce the waste caused by repeated excavation, and it is also conducive to saving land. Reduce pavement manhole cover facilities, reduce pipeline maintenance costs, and extend pipeline service life. The comprehensive pipe gallery belongs to the "lifeline engineering", and the seismic fortification intensity of the building should be increased by one level. The "lifeline project" involves the maintenance of the urban survival function system and the project that has a significant impact on the national economy and people's livelihood, that is, the urban lifeline project. The urban lifeline project must have sufficient earthquake resistance, flexible response capabilities and rapid recovery capabilities.

Corrosive environment

Complete internal and external tests also ensure the product quality of Gulitel support and hanger system. Gulitell has a well-equipped internal testing laboratory that can conduct routine mechanics experiments. The seismic support and hanger system has undergone a comprehensive internal test, including the strength test of the connection, the sliding force test of the spring nut, the channel steel flanging force test, etc. Guliteli seismic support and hanger system has passed the seismic support test of the National Building Materials Testing Center, and its test basis is CJ/D 476-2015 "General Technical Requirements for Seismic Support and Hanger of Building Electromechanical Equipment" (hereinafter referred to as "Technical Conditions") . Test items include: appearance, size, component load performance, component load performance, and corrosion resistance. Among them, the component load performance test is the most critical. ((Technical conditions)) The basic method of component load performance test is to install 4 sets of supports and hangers, and apply cyclic load to the supports and hangers until the supports and hangers are broken or the displacement exceeds 50mm. There are two types of 2.25kN and 9kN. The initial load is optional.

Solution

The seismic design of urban underground pipe gallery needs to determine the functional coefficient Y, the category coefficient n, the state coefficient according to the fortification intensity of the pipe gallery, the structural form, the location of each pipeline system in the pipe gallery, and the load-bearing coefficient. Position factor B2, horizontal seismic action factor a, etc., combined with the equipment's own gravity G, calculate the equivalent seismic force F=Yq inkstone(2aG) acting on the pipeline system or equipment. Comprehensive analysis selects the corresponding seismic product NPY seismic support Hanger) to solve the seismic problem and protect the piping systems (electricity, gas, communication, heating, water supply and drainage, etc.) under the action of earthquakes, not overturning, not slipping, and still functioning normally. It provides a guarantee for the continued power supply, communication, command and dispatch, and rescue in the disaster area after the earthquake. Simultaneously. In the application of the product, comprehensive factors such as bearing capacity, anti-corrosion, fire resistance, and aging must also be considered.