. The street railway review . o common in this coiin-Iry on account of the abundance and cheapness of that article is not intended to decry the value of wood nor todiminish the importance of the services it has rendered, for if it had beams, columns, floors, etc., as such calculations are rather complexand at the present time to a considerable extent empirical, thougha great deal of experimental work is being done on the subject, andwe may expect it will result in as complete an understanding of thestresses in concrete as we have in regard to iron and steel. Atten-tion will simpl
. The street railway review . o common in this coiin-Iry on account of the abundance and cheapness of that article is not intended to decry the value of wood nor todiminish the importance of the services it has rendered, for if it had beams, columns, floors, etc., as such calculations are rather complexand at the present time to a considerable extent empirical, thougha great deal of experimental work is being done on the subject, andwe may expect it will result in as complete an understanding of thestresses in concrete as we have in regard to iron and steel. Atten-tion will simply be called to the suitability of reinforced concreteand the fact that it can be properly used to accomplish results notobtained as well by any other material. In the practical applications of reinforced concrete, we find aboutihe same arrangement of posts and beams as would be used in slow-luirning mill construction. In fact, it has been described by sayingthat if we consider w-ooden construction as petrified, we obtain con-. s^ccf/bn^f j^-O Iwen scarce and expensive it would have greatly handicapped ourbuilding operations and limited our projects in almost all for many purposes for which it has been commonly used it ismanifestly less fitted than other materials which arc now available. Brick and stone have been commonly used and have provedtheir ability to stand for ages. These materials when used in build-ings have been principally in the walls and foundations, and themodern industrial buildings in this country have had a great dealof wood in them. While adding to the danger of destruction byfire, there is also the difficulty of obtaining the rigidity and strengthnecessary to sustain heavy loads or accommodate vibrating machin-ery. \ heavy timber and plank floor construction goes fartowards overcoming both of these defects and for many purposesat the present time it is probably still the best when suitability andcost are considered. The use of structural steel
Size: 2754px × 907px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., book, bookcentury1800, bookdecade1890, booksubjectstreetrailroads
