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abutment added affected amount angles apply becomes belongs borne braces BRIDGES centre changed Cloth compression consequently considered constant constant load containing counterbraces depth determined distance divided double truss edition end panel Engineer equal equation example feet following table form the following full load given gives greater greatest half Hence horizontal chord horizontal component horizontal strain Illustrated inclined braces length less lower chord maximum measured ment moving load multiplied number of panels obtain opposite panel end panel load panel points passing pillar points of Simple practical proportion rafter reaction represent right abutment segment shown side Simple Truss sion Strains in Tons STRENGTH struts Substituting the values tension tion uniform unloaded abutment upper chord Values vertical component vertical strain weight whence
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