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Seismic Behavior of Steel Storage Pallet Racking Systems by Carlo Andrea Castiglioni

By Carlo Andrea Castiglioni

This ebook provides the most results of the 1st eu learn undertaking at the seismic habit of adjustable metal garage pallet racking platforms. specifically, it describes a finished and exact set of full-scale checks designed to evaluate such habit. The assessments played contain cyclic exams of full-scale rack parts, particularly beam-to-upright connections and column base connections; static and dynamic checks to evaluate the friction issue among pallets and rack beams; full-scale pushover and pseudodynamic checks of garage racks in down-aisle and cross-aisle instructions; and full-scale dynamic assessments on two-bay, three-level rack types. the results of the findings of this vast trying out regime at the seismic habit of racking structures are mentioned intimately, highlighting e.g. the affirmation that lower than serious dynamic stipulations “sliding” is the most issue influencing rack reaction. This paintings used to be conceived in the course of the improvement of the SEISRACKS venture. Its results will give a contribution considerably to expanding our wisdom of the structural habit of racks lower than earthquake stipulations and will tell destiny rack design.

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Sample text

Column-base tests . . . . . . . . . . . . . . .... 24 26 .... 27 .... 35 .... 36 .... 40 .... 45 . . . . 55 76 76 79 .... 80 .... 83 .... 92 .... 96 99 .... .... 104 109 110 . . . . 6 Monotonic tests on column-bases bent in cross-aisle direction with bolts in tension: (a) bolted to a steel surface, (b) bolted to a concrete surface (c) bolted-and-welded to a steel surface . . . . . . Monotonic tests on column-bases bent in cross-aisle direction with bolts in compression zone: (a) bolted to a steel surface, (b) bolted to a concrete surface (c) bolted-and-welded to a steel surface .

Tests on beam-to-upright connections . . . . . . . Pseudo-dynamic tests in down-aisle direction . . . . Variation of the second eigen-frequency of specimens tested under dynamic and pseudo-dynamic conditions . Measured natural frequencies and damping ratio . . . Test history for specimen B . . . . . . . . . . Test history for specimen D . . . . . . . . . . Characteristics of the input motion for test 7 and 9 on specimen B . . . . . . . . . .

Down-aisle accelerations measured on the structure and on the mass at different levels during test 7 on specimen B: a 3rd level, b 2nd level, c 1st level . Cross-aisle accelerations measured on the structure and on the mass at different levels during test 7 on specimen B: a 3rd level, b 2nd level, c 1st level . Sliding acceleration of the masses during test 7 on specimen B: a down-aisle direction; b cross-aisle direction . . . . . . . . . . . . . . . . Base shear for test 7 on specimen B.

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