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MINIMIZE DAMAGE, MAXIMIZE SAFETY

Design your fastenings to resist seismic forces​

Structures designed for seismic scenarios to the state-of-the-art standards ensure a high degree of structural integrity & occupant safety.

With earthquakes placing huge demands on the resistance & connections of a building’s structural & non-structural elements, appropriately designed fastenings using post-installed anchors must ensure robust performance that do not compromise both structural integrity or occupant safety.​

 

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Earthquakes are much more common than we realise. They happen every day all over the world.

Not only do they cause loss of life and serious injury, but they can also do great damage to buildings and the economy.

All this can be limited by good seismic construction design and specification.

Click here to view last big earthquake in Indonesia 

Share of Damage resulting from a seismic event in terms of cost

Reinforced concrete building

Hospitals

Importance Level - 4

Hotels

Importance Level - 3

Offices

Importance Level - 3

Source: Taghavi S. & Miranda E.

Seismic forces is relevant for both structural and non-structural elements. Designing for these actions ensures the safety of the structure as well as its inhabitants. The research shows that non-structural systems suffer the largest damage in commercial buildings during an earthquake.

How anchors behave in an earthquake

Seismic conditions significantly change the behavior of anchors, compared to static conditions.

How Hilti anchors comply with seismic codes

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According to the latest SNI 2847, designing fastenings to resist seismic actions requires use of anchors qualified to ACI 355.2 (for mechanical anchors) or ACI 355.4 (for chemical anchors).

 

Hilti produces a range of anchors qualified to both ACI 355.2 / ACI 355.4, enabling designers to undertake a compliant design.

RELEVANCE IN INDONESIA

The earthquake hazard map in SNI 1726:2019 shows the acceleration coefficient for different locations across Indonesia.

Seismic Design is relevant in the large part of the country, represented on the map.

SOURCE

SEISMIC PERFORMANCE RELEVANCE TO ANCHOR CONNECTIONS

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In Indonesia, building type risk categorized in SNI 1726:2019 in table 3 shown that seismic design must be considered in each accordance to the building risk type (Cat I,II,III,IV) and seismic forces can be estimated by using seismic response map mentioned earlier.

Hilti anchor comply with ACI 318 and ACI 355 which SNI 2847:2019 is refer to. Seismic design is required for all building resisting seismic forces in seismic design category class C,D,E and F.

HILTI ANCHORING RANGE WITH SEISMIC APPROVALS

HOW DO I DESIGN ANCHORS FOR SEISMIC AREAS

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At Hilti, our engineering team can help you design anchor systems for all types of load conditions including seismic. Just contact your local office for more details or you can use Hilti PROFIS Engineering software. This includes code compliant Hilti products with relevant documentation and specifications.

Hilti PROFIS Engineering software performs seismic calculations according to ACI 318 and SNI 2847:2019 This gives three solutions for anchoring base plates in seismic areas:

Capacity design - The anchorage is designed for the force corresponding to the yield of a ductile component, or if lower, the maximum force that can be transferred by the fixture or the attached element.

Elastic design - The fastening is designed for the maximum load assuming an elastic behaviour of the fastening and of the structure.

Design with requirements for anchor ductility - This design for ductile steel failure requires an anchor classified as ductile. This approach is also applicable only for the tension component and some provisions need to be observed to ensure that the cause of failure is steel failure. 

We’ve also added our own Hilti research results into PROFIS Engineering software, so that you can find solutions, which go beyond ACI 318 and SNI 2847:2019.

Seismic Design of anchors made easy with our all in one connection design software, PROFIS Engineering.

 

Know more about PROFIS Engineering

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