Xiangyang composite pipeline seismic support Hanger -Hot dip galvanizing Hubei multi pipe combination seismic resistance Bracket Manufacturer - Xiangyang seismic support installation Key points of operation
(1) Pipes and wire bushing Longitudinal offset is allowed, but it shall not exceed 1/6 of the large lateral support spacing; Air duct The allowable deviation shall not exceed 2 times of the air duct wind.
(2) When the horizontal pipeline turns at 90 °, seismic supports and hangers shall be provided; When the turning length of other angles is greater than 1/16 of the seismic design spacing, lateral and longitudinal seismic supports and hangers are required.
(3) When calculating the horizontal seismic force load, only the full load weight is needed without considering other factors.
(4) The seismic hanger does not limit the stress caused by the thermal expansion and cold contraction of the pipeline. When the thermal expansion and cold contraction factors are taken into account, the selected model of the longitudinal hanger shall be able to resist the thermal expansion and cold contraction stress of the pipeline in the component selection.
（5） Thermal insulation pipe The seismic hanger pipe code of the line shall be considered according to the size after insulation, and the door type hanger is used for insulation air duct Water pipe This is also considered.
(6) The pipeline seismic support used for rigidity cannot be installed in different structural parts or functional parts of the building, otherwise, different displacements will be generated due to seismic action.
(7) The single pipe seismic support, two-way lateral or longitudinal or inflection point seismic support with lateral/longitudinal effect, shall be directly connected to the pipeline or wire casing. It should be noted that the support of branch pipes or small pipelines cannot be used as the seismic support of the main pipe, that is, cannot be used as the support of the other direction (main pipe).
(8) When the pipeline crosses the building settlement joint, the settlement displacement design shall be considered.
(9) The best vertical angle for the installation of side/longitudinal diagonal bracing is 45 °, which can be adjusted according to the actual situation on site.
(10) For single pipe or multi pipe shared door type hangers of water, electricity and air systems, regardless of lateral/longitudinal diagonal bracing, when the diagonal bracing deviates 2.5 ° from the centerline, its bearing capacity will not be affected.

Analysis and comparison of two kinds of supports and hangers for load-bearing support and seismic support: the load-bearing support and hanger mainly calculate the gravity load of the pipeline, and the force in the horizontal direction is mainly to prevent shaking and Mechanics Vibration is the main factor. Seismic supports and hangers are mainly loaded by the seismic action on the pipeline during the earthquake. Basis《 Building electromechanical Article 1.0.3 of Code for Seismic Design of Engineering (GB50981-2014): electromechanical The project must be designed for earthquake resistance. " For seismic action, only horizontal seismic action is considered in general areas (seismic fortification intensity ≤ 8 degrees). According to Code for Seismic Design of Buildings（ Article 5.1.1 of GB50011-2010 (2016 Revision) stipulates: 8. Vertical seismic action shall be calculated for long-span and long cantilever structures at 9 degrees and high-rise buildings at 9 degrees.