Planar mechanics of fully grouted concrete masonry
Abstract
A continuum model for the behavior of fully grouted concrete masonry Both unreinforced and reinforced masonry are considered, but otherwise attention is restricted to a single material type. Data were taken from prisms of several configurations and from 5 foot square panels cut at an angle relative to the joint system. The panels were tested under direct biaxial stresses with one edge in tension and the other in compression or stress free. The elastic behavior is found to be linear. The form of the elastic law describing this behavior is determined and the moduli are evaluated showing substantial anisotropy in stiffness. Hysteresis loops at several load rates are described, and the relation of these loops to the damping of structure is discussed. The significance of prism configuration and end conditions, and the relation of prism compressive strength to wall compressive strength are discussed. A law describing the dependence of unreinforced uniaxial tensile strength on direction shows moderate anisotropy in tensile strength and is incorporated into a law of unreinforced biaxial strength for the special case of principal stresses of opposite sign.
- Publication:
-
Ph.D. Thesis
- Pub Date:
- March 1980
- Bibcode:
- 1980PhDT........24N
- Keywords:
-
- Compressive Strength;
- Concretes;
- Masonry;
- Stress Analysis;
- Elastic Properties;
- Grout;
- Hysteresis;
- Engineering (General)