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Definition. Reinforced brickwork (abbreviation R.B.) is a composite structural material consisting of load-bearing brickwork masonry into which lengths of suitable metal (normally steel) are introduced and so bonded as to render the resultant composite capable of resisting not only the compressive stresses but also the tensile and shear stresses which obtain in a structure. It follows from this definition that
not only may individual structural members, such as walls, columns and simple, continuous and cantilever beams and slabs be rationally designed and constructed in reinforced brickwork, but that those bonded assemblages of such members normally designated "framed structures," may also be so designed and constructed.
Conrad W. Hamann
Lock gates usually consist of a pair of leaves turning upon vertical heelposts placed in the hollow-quoin recesses of the side walls, meeting at an angle in the centre of the opening, and shutting, at the same time, against the pointing sill at the bottom. This type of gates offers many advantages as well as some inconveniences, among which are the thrust on the side walls, difficulty in ensuring the complete closing of the leaves and water-tightness along the meeting posts and the sill against which the gates abut.
Mr. F. T. Middleton (Member) asked what, in United States practice and taking 30 storeys as a maximum, was approximately in the author's estimation and experience the weight, cost and erection speed differential between a high strength bolted structure and a comparable site-welded partially bolted structure?