Fred T. Hodgson · Frederick J. Drake and Co. · leaf 478
s as those for beams, and generally speaking are asirrational. The Monier system is the one most gen-erally adopted, and over 400 bridges built on this sys-tem now exist in Europe. In America expanded metaland Clinton electrically-welded fabric are often used.An example of the latter construction… … A Spiral Staircase built on the tfennebiqueprinciple. HOW TO USE THEM 475 Concrete Walls,—Many ingenious plans have beenintroduced as substitutes for wood framing for retain-ing concrete while constructing walls and partitions.The most simple method is as follows: Cast a numberof concrete angle…
