257 publications from this institution
Keywords LOUGHBOROUGH UNIVERSITY, HARBIN ARCHITECTURE & CIVIL ENGINEERING, INSTITUTE CONCRETE, REINFORCED, BEAMS, BEHAVIOUR, STRUCTURAL, PLATES, BONDED, BONDS, LOADS, YIELD, ULTIMATE, MODELS, NON LINEAR, FINITE ELEMENTS, DESIGN, RATIOS, EMBEDDED, STEEL, REINFORCEMENT, STRENGTH, DUCTILITY, FAILURES, STIFFNESS, EXTERNAL, THEORY, SHEAR, STRESS, SPANS, LOWER BOUNDS, MECHANISMS, FULL, CODES, PEELING, MODES, FLEXURAL, CRACKS, SPACING, PREMATURE... Show All
This article presents a literature review of existing research on the strong column–weak beam design philosophy, which has been widely adopted in the seismic design of frame structures. A comprehensive review of this design philosophy, including its concept and research history, especially factors affecting the accurate calculation of the flexural capacity of beams [Formula: see text] and the determination of the column-to-beam flexural strength ratio [Formula: see text], is presented first. The development of design provisions of four representative countries for this design philosophy is also reviewed. The implementation of strong column–weak beam hierarchy in real structural design is then discussed, and existing problems are pointed out. Finally, different techniques for the seismic retrofit of existing reinforced concrete frames are reviewed.
A mathematical model was developed to simulate the Texaco Inc. Downflow Entrained Bed Pilot Plant Gasifier (5 ft dia, 20 ft. long steel vessel) with coal liquefaction residues as feedstocks. The gasifier was conceptually divided into three zones; the pyrolysis and volatile combustion zone, the gasification and combustion zone, and the gasification zone. The gas phase was assumed to be completely mixed at the entrance region followed by a region approximating plug flow. The solid phase was assumed to be a plug flow throughout the reactor. Temperature and concentration profiles along the reactor were obtained by solving the material and energy balances and taking into consideration the gasification kinetics, the transport rates, and the hydrodynamics of the gasifier. Good agreement was obtained between computations from the proposed model and the experimental pilot-plant data. Sensitivity of the parameters used in the model was tested and optimum operating conditions were determined by simulating reactor performance under various operating conditions. 21 references.
Keywords ADELAIDE UNIVERSITY CONCRETE, BEAMS, REINFORCED, PEELING, FAILURES, PREDICTION, PLATES, BONDED, EXTERNALLY, MODELS, DEBONDING, MATHEMATICAL, SHEAR, FLOW, METHODS, TESTS, STEEL... Show All
