CROATIAN SCIENCE FOUNDATION INSTALLATION RESEARCH PROJECT UIP-2014-09-5711

General overview:

The project is expected to last for three years in total. Generally, it can be divided into three different parts: stationary creep tests of steel and aluminium material, development of new analytical/rheological creep models for steel and aluminium including their implementation in the existing research codes and testing of aluminium and steel columns including the verification of the developed creep models.

List of the project activities include:

• Analysis of the existing creep models and selection of a representative steel and aluminium alloy on which further tests will be conducted,
• Completion of tests for determining creep properties of steel and aluminium coupons and development of a new type of analytical and rheological creep model,
• Development of analytical&rheological models for primary, secondary and tertiary creep phase of steel and aluminium at high temperature by using the parameters obtained from the analysis of coupon test results,
• Programming the developed rheological/analytical creep models into selected research codes (Vulcan and Fire Stasus) and interfacing them into the FEM analysis procedure,
• Instalation of a Laboratory for testing of structural members exposed to high temperature,
• Experimental tests on steel columns by applying stationary test method at different temperature levels (100-800°C) and by applying transient testing method (using load levels from 20%-80% of the columns’ axial load capacity at atmospheric temperature),
• Experimental tests on aluminium columns by applying stationary test method at different temperature levels (100-500°C) and by applying transient testing method (using load levels from 20%-80% of the columns’ axial load capacity at atmospheric temperature),
• Verification of the implemented rheological/analytical creep models for steel at high temperature,
• Verification of the implemented rheological/analytical creep models for aluminium at high temperature.

Official links related to this project:

Influence of creep strain on the load capacity of steel and aluminium columns exposed to fire

Faculty of civil engineering, architecture and geodesy

Croatian science foundation