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Construction sequence of steel back ribs
Release Time : 2023-04-05 View Count : 次Before the construction of the steel back ridge, the formwork must be erected first. Before the formwork is erected, the foreman shall conduct a detailed technical briefing to the installation team leader based on the construction plan and operating specifications of the steel back ridge, and implement responsibilities. Seriously implement the "three inspection system" of self inspection, mutual inspection, and handover inspection, conscientiously implement the company's quality management regulations, and reward and punish the quality of products. Local slurry leakage and hanging must be promptly removed to ensure surface appearance. After the installation of the steel back corrugated formwork, self inspection must be carried out, and the allowable deviation must meet the requirements. Any deviation that does not meet the requirements should be reworked and adjusted. Only after passing the inspection can inspection be applied for. The template and its support must have sufficient strength, stiffness, and stability, and sinking and deformation are not allowed except for normal operations. The inner side of the template is flat, and the joint of the template is less than 1.5mm. The contact surface between the template and the concrete is cleaned, and the release agent is evenly applied. Use a good release agent. The inspection items include axis position: the allowable deviation for steel ruler inspection is 5mm; Mm elevation: the allowable deviation for inspection with a level gauge or wire, and a steel ruler is+5, -5mm; Section size: The allowable deviation for steel ruler inspection is+4, -5mm; Perpendicularity of layer height: The allowable deviation for checking with a theodolite or suspension line and a steel ruler is 6mm; Surface height difference between adjacent plates: allowable deviation for steel ruler inspection is 2mm; Surface flatness: The allowable deviation for inspection with a 2-meter ruler and feeler gauge is 5mm.
The construction sequence of the steel back ridge: According to the design drawings and requirements, optimize the design of the door stack, lintel, and other structures. After the design deepening drawing is completed, the steel support manufacturer will complete the reinforcement plan and ensure the complete application of the steel support; Erect two templates simultaneously on both sides of the wall, with two secondary ridges fixed on the vertical edges of the templates. Each template should be connected to the opposite joint of the template with a secondary ridge; Install secondary ribs, vertical secondary ribs; Reinforce with through wall bolts; Reinforce the internal and external corners, and connect the internal walls with internal corners when encountering corners between the beams.