Jingmen Prefabricated Houses

The prefabricated houses in Jingmen mainly adopt prefabricated construction technology, which means that some or all components are prefabricated in factories and then transported to the construction site for assembly. Here is a detailed introduction:

Typical Project

The second phase of the Beijingpang Garden Community project is the first prefabricated housing reconstruction project in the western Hubei region. It consists of 8 buildings with 15 units and can provide 1,076 reconstruction housing units. The underground floor and the first and second floors above ground adopt cast-in-place reinforced concrete structures, while the third to eighteenth floors above ground use prefabricated structures. The prefabricated components used include prefabricated exterior walls, prefabricated partition walls, prefabricated stairs, and prefabricated balconies, with a prefabrication rate of 53%.

Advantages of Prefabricated Buildings

• High Construction Quality: Components produced in factories are hoisted on-site. Walls are made using molds in the 'residential factory' and controlled by computers, with length, width, and height errors of only 1-2mm. The walls are very flat and exquisite, eliminating the need for later plastering and addressing quality issues such as wall cracking and hollowing.
• Short Construction Period: Taking the second phase of the Beijingpang Garden Community project as an example, compared with the first phase of traditional construction, the construction period has been shortened by one-third. To build a floor of about 800 square meters, it takes about 4 days to construct the main structure of one floor using traditional methods, while for prefabricated buildings, the subsequent main structure adopts interior and exterior wall plaster-free processes, and finished window frames, balcony railings, stair railings, and bathrooms are integrated and inserted during factory prefabrication of components, greatly saving the total construction period.
• Energy Conservation and Environmental Protection: The amount of waste generated and losses can be reduced by more than half. The installation of components for one floor can be completed within one day, and one floor can be built in 5-6 days, greatly reducing the generation of construction waste on-site. Taking a 20-story fully furnished residential building with a total construction area of 12,000 square meters as an example, the construction period using traditional methods is about 360 days, while using fully prefabricated construction takes only 200 days. At the same time, it can save 20% of materials, 70% of energy, and 80% of water.
• Low Labor Costs: Using traditional construction techniques requires about 30 carpenters, 15 steelworkers, and 4 plumbers and electricians, while using prefabricated construction requires only 12 carpenters, 7 steelworkers, and 2 plumbers and electricians.

Safety

Reinforcing bars are pre-embedded in components such as prefabricated exterior walls and prefabricated stairs during production. During assembly, these reinforcing bars are interlocked with the reinforcing bars of beams and columns and then poured with concrete, firmly integrating them. Under the premise of strictly controlling construction quality, there are no structural safety issues.

Development Plan

Jingmen attaches great importance to the development of prefabricated buildings and has established a leading group for the development of prefabricated buildings to coordinate and promote the development of prefabricated buildings throughout the city. It took the lead among prefecture-level cities in the province in issuing the 'Implementation Opinions on Promoting the Modernization of the Construction Industry in Jingmen City'. By 2025, the proportion of prefabricated building area in Jingmen will reach 35%. By the end of next year, the proportion of prefabricated building area in the area within the third ring road of Jingmen and the Aifeike Town in Zhanghe New District will reach more than 20% of the newly built building area, and in the urban areas of Jingshan County, Shayang County, and Zhongxiang City, it will reach more than 15%.