High Performance Timber Concrete Floor Pannel Connected by Bonding

Structural glued-laminated timber is one of the oldest engineered wood products used in construction. Glued-laminated timber has several advantages over sawn timber and other structured materials. The main disadvantage is related to the considerable variability in material properties. Safety factors on materials properties are therefore integrated in design codes for structural application. In addition, to satisfy serviceability conditions, timber beams must be relatively deep. This is due to the low Young’s modulus value of wood and to its creep behavior, which imposes a consideration of time, humidity and loading to calculate long-term deflection. The deflection may increase by up to 60% in some cases when long-term loading is considered. The main objective when designing such a hybrid section is to make use of the best characteristics of each material. This program aims to develop a new structure component promoting the use of wood and concrete to improve its mechanical performance. This new product is used in the field of construction and combines three materials: wood, concrete (UHPC). This approach aims to meet the increasing expectations of end-users and the needs of a sector of the construction. Long-term creep tests are done on full-scale specimens.