體育館人行天橋施工方案.doc
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體育館人行天橋施工方案
1 工程概況
1．1 體育館人行天橋位于筍崗西路，深圳市體育館正門處，全橋總長51.4m，橋面寬5.0m，由二跨梁組成，整座橋鋼結構總重約136t。
1．2 主梁：主梁截面形式為單室直腹板箱形梁，梁兩端帶伸臂，梁截面高0.8m，每跨梁全長25.7m，凈重約33t，兩跨主梁連接處相互搭接，即北邊主梁擱置在南邊主梁上，兩主梁間設40mm伸縮縫，用螺栓連接起來，主梁豎向曲線半徑為R＝450m，制作時應起拱。
1．3 墩柱：全橋共9組墩柱，每組由二根鋼管柱組成，主橋墩柱尺寸均為φ500×16鋼管柱，最長5.7m，最重約3.2t，梯道墩柱尺寸均為φ300×16鋼管柱，最長3.7m，最大單重1.23t，墩柱安裝完后要求2＃墩柱內灌滿砼。
1．4 梯道：本橋共設四部梯道，其中二部為人行梯道，坡度為1∶2；二部為人自行車梯道，坡度為1∶4；梯道寬均為3.0m，梯道梁均為鋼板焊接而成的箱形截面梁，截面尺寸均為0.3m×1.1m，每側梯道均分為幾段，每段直接擱置在墩柱上，每段梯道之間設10mm伸縮縫，并且兩段梯道之間用螺栓連接起來，梯段
Stadium footbridge construction plan
1 Project Overview
1.1 The pedestrian bridge is located in Sungang Stadium West Road, Shenzhen City Stadium main office, full-bridge length of 51.4m, the bridge voluminous 5.0m, formed by the two cross beams, the whole bridge steel structure weighing about 136t.
1.2 Main Beam: main beam section in the form of single-chamber direct web box girder, beam ends with Outrigger, beam cross-section of high 0.8m, each cross-beam length 25.7m, net weight of about 33t, two cross-girder connections Department of mutual overlap, that is set aside in the south of the north side of the main girder beam, two 40mm joints located between the main beams, bolted together, the main beam vertical curve radius R = 450m, production should be bagging.
1.3 Pier: A total of nine full-bridge pier groups, each composed by the two steel columns, the main pier column size are φ500 × 16 steel column, up to 5.7m, most weighing about 3.2t, stairways pier Dimensions are φ300 × 16 steel column, the maximum 3.7m, the largest single weight 1.23t, pier after installation requirements within the filled concrete pier # 2.
1.4 Stairs: The bridge consists of four stair which two man line ladder Road, gradient 1:2; two man bike ladder Road, gradient 1:4; stairway width are 3.0m, ladder Road beams are made of steel welded box section beam, cross-section dimensions are 0.3m × 1.1m, each side of the stairways are divided into paragraphs, each a direct hold on the pier, each located between the stairways 10mm joints and between the two stairways connected with bolts, bench