A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Shear Strength of a PCBT-53 Girder Fabricated with Lightweight Self-Consolidating Concrete
Lightweight self-consolidating concrete (LWSCC) is advantageous in the bridge industry because members fabricated with this material have a significantly lower self weight and in its fresh state, LWSCC has a low viscosity that eliminates the need for vibration during fabrication. Unfortunately, lightweight, self-consolidating concrete typically has lower tensile strength and possibly a lower aggregate interlock strength. This combination may result in a lower overall shear strength. In addition, this type of concrete has a lower modulus of elasticity, which leads to higher elastic shortening losses and higher deflections. In order to evaluate the affect of lightweight, self-consolidating concrete on the shear strength of prestressed concrete bridge girders, the study described herein was performed. A single PCBT-53 bridge girder was fabricated and tested. The girder itself was cast with lightweight, self-consolidating concrete and a composite cast-in-place deck was fabricated using lightweight concrete. In this study, the girder and deck were tested using three different loading conditions.
Shear Strength of a PCBT-53 Girder Fabricated with Lightweight Self-Consolidating Concrete
Lightweight self-consolidating concrete (LWSCC) is advantageous in the bridge industry because members fabricated with this material have a significantly lower self weight and in its fresh state, LWSCC has a low viscosity that eliminates the need for vibration during fabrication. Unfortunately, lightweight, self-consolidating concrete typically has lower tensile strength and possibly a lower aggregate interlock strength. This combination may result in a lower overall shear strength. In addition, this type of concrete has a lower modulus of elasticity, which leads to higher elastic shortening losses and higher deflections. In order to evaluate the affect of lightweight, self-consolidating concrete on the shear strength of prestressed concrete bridge girders, the study described herein was performed. A single PCBT-53 bridge girder was fabricated and tested. The girder itself was cast with lightweight, self-consolidating concrete and a composite cast-in-place deck was fabricated using lightweight concrete. In this study, the girder and deck were tested using three different loading conditions.
Shear Strength of a PCBT-53 Girder Fabricated with Lightweight Self-Consolidating Concrete
B. Z. Dymond (author) / C. L. Roberts-Wollmann (author) / T. E. Cousins (author)
2009
76 pages
Report
No indication
English
Highway Engineering , Construction Equipment, Materials, & Supplies , Lightweight concrete , Bridge girders , Shear strength , Fabrication , Viscosity , Tensile strength , Aggregates , Prestressed concrete , Modulus of elasticity , Composite materials , Flexural strength , Bridge decks , Loads(Forces) , Evaluation , Self-consolidating concrete
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