Owing to its controllable tolerance, simple operation and no need for welding at construction site, the composite system involving grouted cement material, steel material and ductile iron material is widely used as grouted splice sleeve (GSS) connector for connecting precast concrete structures. However, the current design recommendations for such a composite connection system do not accurately...

Resumen. Este artículo describe el Modelo de Realización de Metamorfosis. El propósito principal de este marco es proporcionar la base conceptual necesaria para el establecimiento de vínculos persistentes y controlables entre la especificación de los requisitos funcionales del sistema (expresado como un Modelo de Casos de Uso) y el producto de su análisis (representado a través de un Modelo de ...

The performance of the grouted sleeve lapping connector that is used to connect reinforcement bars in a precast concrete structure is studied. A total of 63 specimens, varying in bar diameter and lap length, were tested under tensile load. The failure modes, ultimate tensile strength values and load-displacement curves of the specimens are discussed in the study. Two equations are proposed for ...

Prefabricated concrete structures are driving the development of green buildings, and connection between prefabricated components is main factor affecting safety performance these structures. Grouted sleeve technology can effectively improve precast component connections. In process grouting operation, grouted sleeves affected by construction environment often have various defects. this work, t...

Synopsis An anchorage test programme carried out on the site of deep basement construction in Norwich, UK, allowed determination of anchorage capacities, creep characteristic data and the exhumation of several anchor bodies in chalk. This paper reports on the performance of the chalk based anchorages, the observation of exhumed grout body shapes and sizes, extent of grout penetration into disso...