Shenzhen Prefabricated Housing Design Plan

The Shenzhen prefabricated housing design plan can refer to the staff dormitory project in the Fuchengnan Industrial Area, Longhua District, Shenzhen, which adopts the Concrete Modular Integrated Construction (C-MiC 2.0) technical system. The specific plan is as follows:

Project Overview

The project has a total construction area of 42,600 square meters, with 2 underground floors and 28 above-ground floors, reaching a height of 98.6 meters. It is divided into 728 standardized modular units, each being an independent hexahedral structure that integrates an entrance foyer, bathroom, bedroom, and balcony functional areas. The modules are uniformly sized at 3.6m×7.2m×3.2m (width×length×height) and weigh between 25 and 30 tons per module. The project adheres to the requirements of the 'Shenzhen Technical Regulations for Concrete Modular Construction' SJG130-2023 and the 'Series of Standardized Product Atlases for Prefabricated Buildings', aiming for an assembly technology score of over 85 points and striving to become a demonstration project for new construction industrialization in Guangdong Province.

Construction Overall Deployment

1. Organizational Structure: The project adopts an EPC general contracting model and establishes a specialized modular management team, including a design department (module division, BIM model management), a factory manufacturing department (prefabricated production and quality control), a logistics and transportation department (transportation route planning), an on-site installation department (module lifting and joint connections), and a technology research and development department (application of intelligent construction technologies).
2. Construction Zoning: The site is divided into a lifting operation area (equipped with 2 300-ton main cranes, 1 150-ton auxiliary crane, and an intelligent monitoring system), a module stacking area (6 zones, each with a capacity of 24 modules, stored on steel frame supports), and a material processing area (including temporary offices and tool storage areas, covering an area of approximately 800 square meters).
3. Schedule Plan: The total construction period is 180 days, with key milestones including: the first 30 days for factory prefabrication of the initial 30 modules; days 31-120 for on-site lifting (an average of 8 modules installed per standard floor per day); days 121-150 for mechanical and electrical installation and decoration; and days 151-180 for project completion and acceptance.

Key Construction Technologies

1. Module Division Design:
   • Structural Division Principles: Adopt an 'one module, one dormitory' integrated design, with modules connected through post-cast joints. The exterior walls are composite insulated walls (200mm C40 concrete on the inside + 50mm extruded insulation layer on the outside + 15mm decorative panels), and the floor slabs adopt a composite layer design (120mm prefabricated + 80mm on-site composite).
   • BIM Technology Application: Establish a full-discipline BIM model for clash detection, develop a 'module ID card' system (QR codes linking design, production, and acceptance information), and use BIM+AR technology to simulate lifting sequences and joint treatments.
2. Factory Prefabrication Process:
   • Mold System: Steel fixed molds with a precision of ±2mm, hydraulic opening and closing systems for rapid demolding, surface chrome plating to ensure concrete forming quality, and a turnover count of ≥300 times.
   • Production Process: Rebar binding → Plumbing pre-embedding → Mold assembly → Concrete pouring → Steam curing → Decoration and finishing → Module acceptance.
   • Quality Control: Self-compacting concrete is used to ensure structural density.