Seismic Support Systems

Building Seismic Design Code

China National Standard GB50011-2010

Article 1.0.2: Buildings in seismic intensity 6 and above areas must be seismically designed.

Article 3.7.1: All structural members, including building structural members and building services equipment, must be seismically designed.

Article 1.1.3: Building services equipment refers to equipment used in modern buildings such as elevators, lighting systems, emergency power systems, communication systems, etc.

An Earthquake Support System

Earthquakes can cause additional forces on buildings and their internal facilities. These forces can be horizontal and vertical, affecting building structures and internal systems like pipelines and cables. The earthquake support system is designed to counteract these forces, reducing damage and ensuring safety.

Diagrams:

Single earthquake support system schematic

Door frame earthquake support system schematic

An earthquake support system

Support type

Earthquake support brackets are divided into four types based on their applications:

Pipeline support (for water and fire protection pipelines)

Cable tray support (for cable trays and bus ducts)

Rectangular duct support (for air conditioning and smoke ducts)

Composite support (for all types of pipelines)

Tube Bundle, Stiffening Device

Earthquake Connection A

Surface treatment: Electroplated zinc (EG) or Hot-dip galvanized (HDG)

Universal design for various structural members, including concrete, masonry, steel structures, and equipment connections.

Dual-headed bolts ensure secure installation without the need for additional tools.

Suitable for vertical and lateral earthquake support applications.

Meets the requirements of NTP-13 earthquake support standards.

Seismic connector B

Surface treatment: electrogalvanized (EG) or hot-dip galvanized (HDG)

The double-headed bolts can be twisted off without using a torque wrench until the bolt head falls off, simplifying the installation and inspection of seismic supports.

Rotary fixed connector, suitable for longitudinal and lateral seismic support applications

Innovative design makes installation simple, saving time and cost.

Meets NFPA-13 seismic support requirements

Adjustable hinge A

Surface treatment: electro-galvanized (EG) or hot-dip galvanized (HDG)

Innovative design, connected with the channel nut, tighten the bolt to the specified torque

Suitable for longitudinal and lateral seismic support applications

Complies with the US Federal Technical Specification WW-H-171 (Type 8) and the Manufacturers' Society (MSS) sp-59sp-69 (Type 8).

Adjustable hinge B

Surface treatment: electro-galvanized (EG) or hot-dip galvanized (HDG)

Innovative design, connected with the channel nut, tighten the bolt to the specified torque

Rotary fixing, easy to install, suitable for longitudinal and lateral seismic support applications

Complies with the US Federal Technical Specification WW-H-171 (Type 8) and the Manufacturers' Association (MSS) 5p-59sp-69 (Type 8).

U-Pipe Hanger

Surface treatment: Electroplated zinc (EG) or Hot-dip galvanized (HDG)

Size range: DN65-DN50

Meets the requirements of the national standard W-H-17 and the manufacturing standard association MSS SP-59/SP-60.

Tube bundle, stiffening devicetem

Surface treatment: electrogalvanized (EG) or hot-dip galvanized (HDG)

Size range: DN65-DN300

Complies with US Federal Technical Specification WW-H-171 (Type 8) and Manufacturers Standardization Association (M5S) SP-59SP-69 (Type 8)

Saddle clamp

Surface treatment: electro-galvanized (EG)

Size range: DN150

Simplifies the installation and inspection of seismic supports without the need for a torque wrench

Suitable for radial seismic support applications

V-type stiffening device

Surface treatment: electrogalvanized (EG)

U-shaped stiffener

Surface treatment: electrogalvanized (EG)