Negative bending moment nearby the middle supports of composite steel-concrete continuous beam bridge, will cause floordeck concrete to crack and shorten its life.
钢-混凝土组合连续梁桥的中间支座附近为负弯矩区,会导致桥面混凝土开裂,缩短使用寿命。
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In his 4th consecutive victory, Dold, 24, raced up the 1576 steps to the observation deck on the 86th floor in 10 minutes and 7 seconds.