Key points and quality control of construction technology for Shenyang modular curtain wall

With the continuous development of urban construction in Shenyang, modular curtain walls have been increasingly widely used in various high-rise buildings and large public buildings. In order to ensure the construction quality and safety performance of the modular curtain wall, it is necessary to strictly control the technical points and quality control measures of each link during the construction process.

Preparation before construction

Drawing review and detailed design: The construction unit should organize professional personnel to conduct a detailed review of the curtain wall construction drawings, and fully communicate with the design unit and construction unit to clarify the design intent and technical requirements. At the same time, based on the actual situation on site and construction technology, we will deepen the design, draw detailed node diagrams and processing diagrams, and provide accurate basis for subsequent production and installation.

Inspection of materials and components: Strict quality inspection is carried out on the materials and components of the unit curtain wall that enter the site, including the specifications, wall thickness, surface treatment of aluminum alloy profiles, the variety, thickness, size, and performance indicators of glass, as well as the materials and specifications of hardware accessories, to ensure that all materials and components meet the design requirements and relevant standards.

Technical points during the construction process

Measurement and laying out: Measurement and laying out are important steps in the construction of modular curtain walls, and their accuracy directly affects the installation accuracy of the curtain wall. Based on the axis and elevation control points of the building, use measuring instruments such as total stations and level gauges to accurately measure and set out the installation reference lines of the curtain wall, including the installation position lines of the columns and the grid lines of the unit cells.

Unit installation: Unit installation should be carried out in the order from bottom to top and from the middle to both sides. During installation, first connect the unit body with the lower installed unit body or the adapter of the main structure, and then adjust the position and perpendicularity of the unit body to make it meet the design requirements before fixing. During the installation process, it is important to use professional installation tools and equipment to ensure the installation quality of the unit.

Sealing treatment: The sealing performance of the unit curtain wall is one of the key factors to ensure its overall performance. At the joints between units, between units and the main structure, and between curtain walls and surrounding structures, sealing treatment should be strictly carried out in accordance with design requirements, using high-quality sealant and sealing materials to ensure the reliability and durability of the sealing effect.

Quality control measures

Establish a quality management system: The construction unit should establish a sound quality management system, clarify the quality responsibilities of each position, strengthen quality process control and inspection, and ensure that the quality of each link meets the requirements.

Process inspection and acceptance: During the construction process, strict self inspection, mutual inspection, and handover inspection systems should be carried out to inspect and accept the quality of each process and sub project. At the same time, invite the supervision unit and the construction unit to conduct regular inspections and acceptance, timely discover and rectify quality problems, and ensure that the project quality meets the qualified standards.

Finished product protection: After the completion of the unit curtain wall construction, the finished curtain wall should be properly protected to prevent collision, pollution, and damage during subsequent construction processes. Take appropriate protective measures, such as covering the surface of the curtain wall with protective film, setting up protective barriers, etc., and strengthen the management and coordination of the construction site to avoid unnecessary damage to the curtain wall.