Domestic Engineering Showcase: SUNWINVISTA CONSTRUCTION ENGINEERING CO., LTD. Delivers Steel Structure for Chongqing Prefabricated Cold Chain Storage and Distribution Center
Positioned at the strategic intersection of the National "New Western Land-Sea Corridor" and the Chengdu-Chongqing Economic Circle, and amidst the explosive growth of fresh e-commerce and pharmaceutical cold chain demand, SUNWINVISTA CONSTRUCTION ENGINEERING CO., LTD. (hereinafter referred to as "SUNWINVISTA") successfully completed the main steel structure works for the Chongqing Prefabricated Cold Chain Storage and Distribution Center, located in the Longxing Industrial Park of Chongqing Liangjiang New Area. Invested in by a renowned domestic smart logistics group, the project features a total floor area of 36,800 square meters, designed with intelligent storage spaces covering multiple temperature zones from -25°C to 15°C. The main structure adopts a large-span portal frame steel system, strictly adhering to the "Steel Structure Design Standard" (GB 50017), "Cold Store Design Code" (GB 50072), and green building evaluation standards, deeply integrating the concepts of "Prefabricated Construction + Smart Logistics."
Overcoming Challenges and Technological Innovation
To address the complex geological conditions of Chongqing's mountainous terrain, the high-temperature and high-humidity summer climate, and the extreme requirements for airtightness and thermal insulation in cold chain buildings, SUNWINVISTA implemented a systematic solution:
- End-to-End Digital Management: Utilized a BIM + Smart Construction Site platform to achieve full-process coordination of steel structure detailing, factory prefabrication, and on-site installation. Component prefabrication precision reached ±1.5mm, and lifting simulations avoided 28 potential construction risk points.
- Cold Chain Specific Structural Technology: Innovatively adopted an integrated envelope system combining a "High-Strength Steel Structure Frame + Double-Sided Aluzinc-Coated Steel Polyurethane Sandwich Insulation Panels." The warehouse joints underwent triple protection via laser welding and sealant, achieving an airtightness test value of 0.12Pa/h (50% better than the national standard) and reducing comprehensive energy consumption by 21%.
- Green and Efficient Prefabricated Construction: Implemented a "90% Factory Prefabrication + On-site Modular Assembly" model. The main steel structure was topped out in just 40 days, accelerating the schedule by 38% compared to traditional methods. Construction waste classification and recycling rates reached 93%, earning certification as a "Green Construction Demonstration Project" by the Chongqing Municipal Housing and Urban-Rural Development Bureau.
Localized Synergistic Efficiency: Deeply collaborated with the Chongqing Architectural Design Institute, local high-quality steel supply chains, and supervision units. A management mechanism combining "Morning Dispatch Meetings + Digital Dashboards" was established to achieve seamless integration from design to production to construction.
Achievements and Industry Impact
The project was delivered 25 days ahead of schedule and passed the final acceptance as well as specialized reviews for fire safety, energy efficiency, and environmental protection in a single attempt. It was honored with the "Chongqing Steel Structure Quality Project 'Bayu Cup' Award." After operation, the center handles over 120,000 tons of cold chain cargo annually, serving and radiating to five southwestern provinces. It significantly enhances the supply chain resilience and quality assurance capabilities for high-value-added products such as agricultural produce and biopharmaceuticals, supporting the "Chongqing Goods Going Out" initiative and rural revitalization.
This project not only demonstrates SUNWINVISTA's core capabilities in the prefabricated steel structure sector—characterized by "Standardized Design, Factory Production, Prefabricated Construction, and Informatized Management"—but also sets a new benchmark for the "High Quality, High Efficiency, Low Energy Consumption" construction of domestic cold chain infrastructure. It provides a replicable "Chongqing Model" for the deep integration of building industrialization and the modern logistics system, vividly practicing the national "Dual Carbon" strategy and high-quality development requirements, and showcasing the responsibility of a national construction enterprise in serving regional economies and empowering industrial upgrading.