NEHRP Clearinghouse
- Title
- Cyclic Loading Tests of Masonry Single Piers. Volume 2: Height to Width Ratio of 1.
- File
- PB296212.pdf
- Author(s)
- Chen, S. W. J.; Hidalgo, P. A.; Mayes, R. L.; Clough, R. W.; McNiven, H. D.
- Source
- National Science Foundation, Washington, DC., December 1978, 188 p.
- Identifying Number(s)
- UCB/EERC-78/28
- Abstract
- This report presents the results of thirty-one cyclic, in-plane shear tests on fixed ended masonry piers having a height to width ratio of 1. These thirty-one tests form part of a test program consisting of eighty single pier tests. A previous report presented the results of fourteen tests of piers having a height to width ratio of 2 and subsequent reports will present the test results of the remaining thirty-five tests. The test setup was designed to simulate insofar as possible the boundary conditions the piers would experience in a perforated shear wall of a complete building. Each test specimen was a full scale pier 56 inches high and 40 inches wide. Three types of masonry construction were used; hollow concrete block and hollow clay brick, both with 8 inch wide units, and a double wythe grouted core wall, 10 inches thick, that consisted of two clay brick wythes 3 1/4 inches thick and a 3 1/2 inch grouted core. The other variables included in the investigation were the quantity of reinforcement and the type of grouting. The results are presented in the form of hysteresis envelopes, graphs of stiffness degradation, energy dissipation and shear distortion, and tabulated data on the ultimate strength and hysteresis indicators. A discussion of the test results is presented but no definitive conclusions are offered. These will be included in a final report at the completion of the eighty tests.
- Keywords
- Masonry; Buildings; Earthquake engineering; Shear tests; Cyclic loads; Piers; Loads (Forces); Earthquakes; Dynamic structural analysis