Do you know where seismic supports and hangers need to be used?

According to GB50981-2014 "Code for Seismic Design of Building Mechanical and Electrical Engineering":

Among them, Article 1.0.4 (Strong Article) stipulates that all buildings above 6 degrees and below 6 degrees should be designed for earthquake resistance.

Article 3.1.6 stipulates the content of seismic fortification: ① hoisting equipment with gravity greater than 1.8kN in the pipeline; ② domestic water supply and fire-fighting piping system greater than DN65kN; ③ rectangular cross-sectional area greater than or equal to 0.38 square meters, circular diameter greater than or equal to 0.7 m air duct system; ④Cable ladder frame, cable trough box, electrical piping with inner diameter greater than or equal to 60mm with a diameter of 60mm or greater, and cable ladder frame, cable trough box, and busway with a gravity greater than or equal to 150N/m.

Article 3.1.8 stipulates that the pipelines passing through the seismic isolation layer in the building electrical and mechanical engineering shall adopt flexible connections or other methods, and set up seismic supports on both sides of the seismic isolation layer.

Article 4.1.2.1 stipulates that when the linear length of the water supply and drainage riser of a high-rise building exceeds 50 meters in the range of 8, 9 degrees, anti-vibration measures should be adopted; when the linear length is more than 100 meters, anti-vibration measures should be adopted.

Article 4.1.2.3 stipulates that the indoor water supply, hot water and fire-fighting pipes that need to be fortified, and the horizontal pipes whose pipe diameter is greater than or equal to DN65, shall be provided with seismic supports as required when they are fixed with hangers, brackets or brackets.

Article 5.1.2.4 stipulates that the pipes in the boiler room, cooling room, and heat exchange station should have reliable horizontal and vertical seismic supports. For multiple pipes sharing a support or a single pipe support with a pipe diameter of 300mm or more, a portal seismic support should be used .

As specified in 5.1.3.3, pipelines with a rectangular cross-sectional area greater than 0.38 square meters and a circular diameter greater than 0.70 m can be supported by seismic supports.

Article 5.1.4 (Strong) stipulates that anti-fume exhaust ducts, accident ventilation ducts and related equipment should adopt seismic support hangers.

According to Article 5.1.5.4, air conditioners, fans and other equipment with a gravity greater than 1.8kN should not be hoisted. When hoisting should be used, it should be avoided to be located above the personnel activity area and evacuation passages, but seismic supports and hangers should be set .

Article 6.1.1 stipulates that gas pipelines with an inner diameter greater than or equal to 25mm should be designed for earthquake resistance, and their supports and hangers should meet the requirements of the code.

Article 6.2.8 stipulates that in buildings with a height of more than 50m, gas pipelines should be provided with appropriate separation and seismic supports in accordance with the seismic requirements of the building.

Article 7.1.2 stipulates that electrical piping with an inner diameter of not less than 60mm and cable ladder frames, cable trough boxes and cable busbars with an inner diameter of not less than 150N/m shall be protected for their seismic performance.