Accession Number : AD0825513

Title :   SHEAR BEHAVIOR OF DEEP REINFORCED CONCRETE BEAMS. VOLUME II: STATIC TESTS.

Descriptive Note : Rept. for Jun 63-May 66,

Corporate Author : NEW MEXICO UNIV ALBUQUERQUE ERIC H WANG CIVIL ENGINEERING RESEARCH FACILITY

Personal Author(s) : Crist, Robert A.

Report Date : MAY 1966

Pagination or Media Count : 202

Abstract : Large-scale static tests were performed on deep reinforced concrete beams. Nominal concrete strengths for all tests varied between 2,500 and 4,000 psi, and intermediate-grade ASTM A 15 reinforcing steel was used. All beams were simply supported. Tests consisted of thirteen test beams of three span-depth ratios, 1.66, 2.67, and 3.62, subjected to a uniformly distributed load. Beams contained longitudinal tensile reinforcing with or without web reinforcing. Both horizontal and vertical web reinforcing were used. Behavior was observed as span-depth ratio and web reinforcing were varied. Numerous modes of failure in shear were observed as beam configuration was varied. Modes of failure transitioned from shear to flexure as span-depth ratio increased and amount and orientation of web reinforcing were varied. Test data were correlated with mathematical models derived in this study and from models developed by others. The mathematical models were used to investigate shear behavior for deep beams. Equations were developed which adequately predict the medium shear behavior of deep beams with web reinforcing. Test data were also correlated with theories developed by others for flexural moment and deflection behavior. Generally, flexural moment behavior was adequately predictable.

Descriptors :   , (*REINFORCED CONCRETE, BEAMS(STRUCTURAL)), (*BEAMS(STRUCTURAL), SHEAR STRESSES), MODEL TESTS, NUCLEAR EXPLOSIONS, STRUCTURES, EXPLOSION EFFECTS, LOAD DISTRIBUTION, REINFORCING MATERIALS, STEEL, MATHEMATICAL MODELS, MOMENTS, DEFLECTION, FAILURE(MECHANICS).

Subject Categories : Structural Engineering and Building Technology

Distribution Statement : APPROVED FOR PUBLIC RELEASE