1, attached to the building of the elevator, lighting and emergency power supply system, fireworks monitoring and fire control system, heating and air conditioning system, communication system, public antenna and building structure connecting members and components seismic measures, according to the fortification intensity, the function of building, building height, and the deformation characteristics and structural types of ancillary equipment the location and operation requirements, according to the relevant standards, specifically through comprehensive analysis to determine.
The brackets of the following auxiliary mechanical and electrical equipment shall be free from seismic fortification requirements:
Equipment with a gravity not exceeding 1.8kN;
Gas pipe with a bore of less than 25mm and an electrical pipe with an inner diameter of less than 60mm;
The area is less than 0.38 square meters, rectangular and circular pipe diameter is less than 0.70m;
Suspender hanger pipe with calculated length not exceeding 300mm.
2, building equipment should not be set in its use may lead to impairment in two disaster site; the isolation device, should pay attention to the strong influence of vibration on the joints, and to prevent the resonance phenomenon of equipment and building structure.
The framework of the attached mechanical and electrical equipment shall be of sufficient rigidity and strength, and shall be reliably connected and anchored to the building structure, so that the equipment shall be restored to its function quickly after the effects of the fortification intensity earthquake.
3, the installation of ducts, cables, ventilation ducts and equipment shall reduce the weakening of the main load-bearing structural members, and the reinforcement shall be provided at the edge of the tunnel opening.
The connection of piping and equipment to the building structure shall be capable of allowing certain relative modifications between the two.
4. The base or connector of the attached mechanical and electrical equipment shall be able to transmit all the seismic effects of the equipment to the structure of the building. In the structure of the building is used for fixing the building mechanical and electrical equipment, embedded anchor position, strengthening measures should be taken to bear, affiliated to mechanical and electrical equipment of the main structure of the earthquake.
5. The high water tank in the building should be reliably connected with the structural component. At 8 and 9 degrees, the high-rise building with time history analysis should be taken into account, and the additional seismic effect of water on the building structure should be taken into account.
6, in the fortification intensity earthquake, the equipment that needs continuous work should be located in the lower part of the seismic response of the building structure, and the corresponding structural components should take corresponding measures to strengthen.
The above contents are arranged according to the problems encountered in the actual work of the trainees. For reference, please contact them in time.