Performances of Steel-Concrete Composite Construction with Demountable Shear Connectors _ Review

[摘要] Composite steel-concrete constructions with demountable (bolted) have the prime privilege of the capability to be untied and taken to pieces, furthermore, they remain suitable for tying again to assemble efficient composite structures. Long-term behavior and durability issues may need replacement of concrete slabs or their parts through maintenance of composite bridge decks. It is a complicated procedure and requires a lot of time in case of the popular traditional welded head stud. Dismantling and replacement of concrete slabs can be effortless by using bolted shear connectors. It is also so important for the sustainability stand point owing to remove of the structure at its life time end easily. Construction by using demountable shear connectors permits the development of faster erection methods. During casting of the reinforced concrete slab bolts can be embedded in it. Then, on site, they are assembled to the predrilled top flange of the steel section of the composite member. For certain application, composite structures with demountable shear connectors can prove their competition economically for their faster erection and lower life cycle costs. The present paper provides a comprehensive overview of most recent published research on composite steel-concrete systems in which the two partial interaction components (slip and uplift resistances) are furnished by demountable shear connectors. It also describes, in detail, properties of the main types of shear connection demount abilities innovated so far.

[发布机构] Department of Civil Engineering, Al-Nahrain University, Baghdad, Iraq^1

[学科分类] 工业工程学

[关键词] Composite members;Composite steel concrete;Lifecycle costs;Long-term behavior;Partial interaction;Shear connections;Steel-concrete composite;Uplift resistance