刚架拱施工组织设计(国外英文资料).doc

刚架拱施工组织设计(国外英文资料) Rigid frame arch construction The XXE04 contract segment K107 + 620 pedestrian bridge is designed to be 1-62.88 m rigid arch bridge, the design adopts the prefabricated component to have the construction method of the stent installation. After the construction approach, the site should be cleared in time and the precast yard shall be prepared. The prefabricated field is arranged on the outside of the main road base, where the arch leg, the diagonal brace and the string are the general precast member, the actual abdominal segment is divided into two sections, all using the horizontal prefabrication. The pre-fabricated parts are used in the vault of the arch and the arch legs, the string and the arch of the arch, and the rest are reinforced with concrete joints. The foundation of the newly built arch bridge is to expand the base, use hydraulic excavator to excavate, in approach the base design elevation of 30cm, adopt artificial clear bottom, until the design is high. After basal cleared, please supervision engineer for on-site inspection, test and the bearing capacity of the basement, after qualified, timely support model, pouring concrete. After the base concrete has reached the design strength, the construction platform of the construction of the form is attached. Abutment adopts high voltage made from bamboo veneer block model, the use of steel with the supporting system of reinforcement model, at the same time in the 60 x 80 cm interval of horizontal bars, horizontal tie use Φ 20 round steel production, installation outside the pull rod set Φ 22 mm PVC plastic pipe, plastic pipe should be better than to be pouring concrete thickness of 1 ~ 2 mm long, end use sand paper to grind. Set delta = 20mm thick steel plate. The pull rod USES double nut lock to tighten, prevent pull pole to appear to be able to take off the cap phenomenon, cause run model accident. Abutment strength of concrete pouring and curing to design, and then begin to fill after wo