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Solutions for Structural movements

Bridge and shock absorber support

CICSA Ingeniería is the exclusive representative for South America of HIRUN®, a subsidiary company of the China Shipbuilding Industry Corporation (CSIC) dedicated to the engineering and manufacture of high-performance mechanical devices for civil constructions, such as POT supports, spherical supports for bridges, dissipators and seismic isolators.

HIRUN® manufactures these support devices for bridges tailored to the client’s project, under EN15129 standards, with certified quality from the European Community.

HIRUN® offers three types of supports to the market:

  1. HIPOT® – POT type supports.
  2. HIFLOW ®- Spherical Supports.
  3. ELASTOMERIC SUPPORTS – Rubber / Steel

Spherical bridge bearings meet the same performance as POT bearings with the benefit of providing the bearing with greater displacement capacity and allowing a rotation of up to 0.05rad.

The use of FLOWGO® as a sliding surface in spherical bearings, replacing the standard PTFE of the competition, allows reducing its dimensions and giving it greater durability over time, among other benefits.

HIRUN® offers viscous and closing dampers to take longitudinal and horizontal forces in bridge piers, especially in railway bridges.

HIRUN®’s vast experience and international support allows us to offer reliable technical advice to offer the best solution for your project.

Seismic isolators

Seismic isolators, as defined in the EN 15129 standard, are devices or combinations of devices that provide the following four functions:
*Support the weight of the structure.
*Provides lateral scrolling capability.
*Provides the ability to re-center.
*Dissipates energy.

HIRUN® offers the following insulators to the market:

  1. HIDAMP – HILEAD: Elastomeric insulators.
  2. HISLIDE: Double sliding pendulum insulators.

HIRUN® manufactures these devices tailored to the client’s project, under EN15129 standards, with certified quality from the European Community. The use of FLOWGO® as a sliding surface for seismic isolators, replacing the standard PTFE of the competition, allows reducing the dimensions of the device and granting it a longer useful life over time, among other features.

Tuned mass dampers

The tuned mass damper (TMD) is suitable for absorbing vibrations that are not caused by an earthquake, for example: vibrations caused by the wind.

The TMD device consists of a moving mass, bellows and a damping element. A TMD is connected to the structure where the greatest (most significant) vibration occurs.

Between the main system and the mass, a spring element and a damping element are arranged to adapt the TMD in order to mitigate and partially accommodate the vibrations of the main system.