A STUDY OF THE DEVELOPMENT OF A STATIC LOAD TEST FACILITY TO BE ESTABLISHED AT THE PROTECTIVE STRUCTURES DEVELOPMENT CENTER FORT BELVOIR, VIRGINIA
Abstract
The report contains a review of the state of knowledge concerning inelastic behavior characteristics/ultimate load capacity of reinforced concrete floor/roof systems. Yield line theory normally predicts ultimate load less than tests show for systems that have perimeter restraint. There have been very few tests of full-scale buildings to the collapse stage. Most of what is known today about behavior of two-way floor systems is based on structural systems tested at less than full scale. The report concludes that less than full-scale testing is practicable. Models scaled down to 1/28 are feasible, best scale seems to be between 1/8 to 1/15. The report discusses materials, fabrication and loading techniques in setting up a model test program. The report outlines a program in detail to test three-dimensional frameworks of conventional reinforced concrete floor and roof systems. The first step is to establish proper correlation between mortar models and full-scale prototypes on their principal behavior considerations: shear, flexural strength, bond and column action using mortar models of single elements. After correlation problems are resolved, the program of testing three-dimensional frameworks can be carried out. Building frames are detailed for such typical floor systems as flat slab, flat plate, two-way slabs, pan joists systems, waffle slabs and precast prestressed concrete. The report contains a bibliography of published articles dealing with ultimate strength of two-way and three-way systems and various theories that have been proposed. A review of papers dealing with structural model analysis is included.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 01, 1966
- Accession Number
- AD0661639