Views: 0 Author: Site Editor Publish Time: 2026-09-21 Origin: Site
Seismic support and hanger installation must comply strictly with applicable codes and standards throughout every construction stage. Proper execution impacts not only the stability of the support assemblies themselves, but also the overall safety of building structures during seismic events and other natural hazards. Correct layout and installation greatly boost the seismic performance of hangers and supports, enabling consistent, long-term reliable performance.
The installation workflow follows a clear sequence. Start with precise field measurement to secure accurate component dimensions. Material cutting and prefabrication are then completed based on measured data. Next, anchor bolts are fitted at suspension points; this stage is critical since anchoring quality directly determines the stability of the whole support system. Vertical suspender rods are mounted afterwards and firmly fastened to suspension locations. Cross beams or pipe clamps are installed subsequently to maintain lateral stability. The final step involves fitting lateral and longitudinal bracings to reinforce overall structural rigidity. Following this full sequence ensures seismic supports can reliably hold MEP equipment and piping, lifting the building's seismic resistance capacity.
Installation Sequence at a Glance
No. | Process Step | Key Requirement |
1 | Field measurement | Precise measurement secures accurate component dimensions. |
2 | Material cutting & prefabrication | Completed on the basis of the measured data. |
3 | Anchor bolt fitting at suspension points | Critical stage — anchoring quality directly determines the stability of the whole support system. |
4 | Vertical suspender rod mounting | Rods are firmly fastened to the suspension locations. |
5 | Cross beam / pipe clamp installation | Installed subsequently to maintain lateral stability. |
6 | Lateral & longitudinal bracing fitting | Final step, reinforcing overall structural rigidity. |
(1) Easy Installation: On-site welding and drilling are unnecessary. Field adjustment and modification can be completed conveniently. Disassembled fittings and channel steel are reusable to cut down material waste.
(2) High Compatibility: The system supports multi-disciplinary sharing of one hanger assembly. It optimizes overhead space and resolves coordination conflicts among different pipeline systems.
(3) Efficient Installation: Installation speed is 3–5 times faster than traditional support solutions. Where permitted by codes, cross-trade construction is available to raise productivity and shorten project schedules.
(4) Rigorous Testing: Full seismic support and hanger systems pass strict performance testing and hold inspection reports from globally recognized authorities. The products meet ISO9001 and ISO14001 standards to guarantee system integrity and stability.
(5) Diverse Component Options: A complete library of standard components delivers simple, practical and flexible solutions to fit various site conditions.
(6) Environment-friendly Construction: No electric welding or open flame operations are required, eliminating risks and negative impacts to the site and surrounding environment.
(1) Limited longitudinal displacement is allowed for pipes and electrical conduits, and the displacement value shall not exceed 1/6 of the maximum lateral support spacing. For air ducts, allowable deviation cannot exceed twice the duct depth.
(2) Seismic hangers must be installed at 90° bends of horizontal pipelines. For bends at other angles, extra lateral and longitudinal seismic supports are required if the segment length exceeds 1/16 of the seismic design spacing.
(3) Only full load weight shall be considered in horizontal seismic load calculation; other secondary factors can be excluded.
(4) Seismic hangers can absorb stress generated by pipeline thermal expansion and contraction, which generally requires no special design constraints. If thermal movement is specified as a design factor, longitudinal hanger components must be selected to withstand related thermal stress.
(5) Pipe clamps for insulated pipelines are sized according to the outer dimension after insulation. The same rule applies to portal hangers for insulated air ducts and water pipes.
(6) Seismic bracing for rigid pipes shall not span separate structural or functional zones of a building, preventing hazards caused by differential displacement under earthquakes.
(7) Single-pipe seismic bracing must connect directly to pipes or electrical conduits to achieve stable bidirectional force transfer. Bracing for branch or smaller pipelines cannot function as seismic support for main pipelines.
(8) Where pipelines cross building settlement joints, dedicated settlement displacement design must be implemented to maintain safety.
(9) The preferred vertical mounting angle for lateral and longitudinal diagonal bracings is 45°, with reasonable adjustments permitted to adapt to site constraints.
(10) For single-pipe or multi-pipe shared portal hangers serving water, electrical and ventilation systems, bearing capacity remains unaffected if lateral or longitudinal diagonal bracings deviate from the centerline within 2.5°.
