预制钢筋混凝土框架结构构件安装工艺标准(427-1996)（Standard for installation of precast reinforced concrete frame members (427-1996)）.docVIP

预制钢筋混凝土框架结构构件安装工艺标准(427-1996)（Standard for installation of precast reinforced concrete frame members (427-1996)） Range The process standard is applicable to the installation of multilayer frame precast beams and column and plate concrete components in general industrial and civil buildings. Construction preparation 2.1 materials and main equipment: 2.1.1 components: prefabricated reinforced concrete beams, columns, plates and other components, should have factory certificate. Component specifications, types, quantity and location of embedded parts and appearance quality, shall comply with the design requirements and quality inspection and evaluation of precast concrete standards (GBJ321? 0) regulations. 2.1.2 steel and steel: specifications and shapes should meet the requirements of the drawings, and should have steel certificate. 2.1.3 cement: use ordinary portland cement No. 425 and No. 525. The columns should be made of 525 expansion cement or ordinary portland cement no less than 525. Slag cement or pozzolanic cement should not be used. 2.1.4 stone: particle size 5 ~ 32mm. The mud content is not more than 2%. 2.1.5 sand: medium sand or coarse sand, containing less than 5% of the mud. 2.1.6 welding electrode: must be selected according to the design requirements and welding procedures. Packaging neat, stainless steel is not damp, there should be product certification and instructions for use. 2.1.7 template: according to the construction requirements and specifications required, ready to complete, brush off the release agent. 100mm * 100mm, 100mm * 50mm square. 50mm planks. 2.1.8 main equipment: hoisting machinery, electric welding machine and ancillary equipment, welding oven, wire rope, clasp, basket corrector, locking clip, ropes, pillars, supporting plate hook, theodolite, level, tower ruler, ruler plate, iron pole, Jack, chain, crowbar. The ruler. 2.2 operating conditions: Familiar with 2.2.1 drawings of design drawings, especially construction drawings, com