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b'The present invention relates to a method for constructing a suspension bridge under tensionless stay cable conditions, comprising the following steps: constructing pylons (100); installing a suspension cable (200) ; (210)'

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b'Philadelphia\xe2\x80\x99s Walnut Lane Bridge, completed in late 1950, is considered the first major prestressed-concrete bridge in the U.S. Gustave Magnel, a Belgian engineer, and Charles Zollman, Magnel\xe2\x80\x99s student,'

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