论文部分内容阅读
一、自承式模架的结构 净跨径:Lo=25米,拱矢高:fo=3.571米,矢跨比:fo/Lo=1/7。 桥面净宽:7+2×0.5米。 采用五根拱肋,断面尺寸:高h=30厘米,宽b=22厘米。 主拱圈线型:等截面悬链线,拱轴系数m=3.5。 二、模板制作 自承式模架大体分为两部分:一是侧板部分,由三层模板钉合;二是底板部分,由两条7×9厘米枋木和短横木板按线型建成。
First, the self-supporting form the structure of the net span: Lo = 25 meters, Arch high: fo = 3.571 meters, the aspect ratio: fo / Lo = 1/7. Bridge net width: 7 +2 × 0.5 meters. Using five arch ribs, section size: high h = 30 cm wide b = 22 cm. Main arch line: cross-section catenary, arch coefficient m = 3.5. Second, the template production Self-supporting mold is generally divided into two parts: First, part of the side panels, nailing by the three-tier template; Second, the bottom part of the two 7 × 9 cm alder and short cross-plank by line type .