HIGH TEMPERATURE PUSH‐OUT TESTS ON DEMOUNTABLE SHEAR CONNECTORS OF STEEL‐CONCRETE COMPOSITE BEAMS

Abstract There is no denying that there a growing need for reusable systems in the construction industry. This not only by‐product of increasing demand materials, but also necessity to reduce greenhouse gas emissions associated manufacturing process components. Reusable aim solidify transition from linear economy model circular model, where lifecycle materials extended overtime. However, are several factors might hinder reusability structural components, ranging regular use over time period accidental situations, such as earthquakes and fires. experimental study focuses its efforts on analysis demountable shear connectors composite under influence high temperatures resemble situation fire. The main idea behind this campaign combine standard push‐out test, specimen composed by HEB‐260 steel profile with reinforced concrete slabs connected flanges via strength bolts subjected vertical force utilizing hydraulic jack simultaneous thermal action. tests reproduce previous performed at University Luxembourg (cylinder coupler systems), 4 different (20, 300, 500 600 °C). loss temperature, failure mode after fire discussed present study.