Modular Construction in China: 26-Storey Residential Building Raised in Five Days

Modular construction has reached a remarkable level in China. With only a small team, a 26-storey residential building was assembled in just five days. This engineering feat shows how relentless innovation is permanently reshaping the property sector.

How was it possible to put up a tower so quickly?

In the city of Changsha, the pioneering scheme relied on two high-capacity cranes and roughly 100 skilled workers. Instead of building floor by floor in the usual way, the team installed modular units resembling oversized containers. This approach dramatically accelerated on-site construction works.

Because these large volumetric units were manufactured industrially in advance, complex tasks could be completed in a controlled environment. Strict standardisation ensured that each module arrived with the elements required for immediate installation. Below, we break down the main components included in these impressive structures.

• Steel frame: a robust metal base that replaces traditional concrete.
• Electrical network: wiring pre-installed at the factory to speed up fit-out.
• Plumbing system: integrated pipework ready for immediate connection within the building.
• Internal finishes: walls and floors completed before road transport.
• Standardised dimensions: precise measurements to make motorway transport feasible.

What is the real secret behind this speed?

Conventional construction is heavily dependent on linear, sequential workflows on the construction site. Typically, teams must wait for a slab to dry fully before starting the level above. This standard process creates long periods of waiting that push the overall schedule back considerably.

The modular model, by contrast, removes that linear dependency through parallel working. While the tower’s foundations are being excavated on the plot, interior elements are produced in the factory at the same time. This modern strategy boosts productivity and substantially shortens delivery times.

How does the choice of materials remove bottlenecks?

Large, conventional buildings often rely on concrete cores that require lengthy chemical curing. Modular methodology avoids this delay by using a structural metal matrix instead. The result is that vertical development can continue without stoppages caused by material hydration.

Metal Matrix

Speeding Up Assembly

Replacing concrete with stainless-steel plates and pre-engineered structural columns completely removes waiting periods linked to curing.

From then on, the pace of lifting depends only on the cranes’ mechanical cycle and the swift work of the fastening crew.

Because components are bolted or welded directly into place, progress is governed purely by the physical throughput of the available cranes. This extreme efficiency fundamentally redefines today’s urban logistics. The direct benefits of using structural steel technology include:

• Completely eliminating drying time for fluid materials.
• Improving structural safety through bolted metal connections.
• Reducing material waste at the urban build site.

Why is this technology still uncommon in the West?

Despite clear success in Asia, ultra-fast assembly faces major obstacles in large Western metropolitan areas. Strict local regulations often slow approvals for innovative engineering projects. These bureaucratic hurdles prevent the immediate adoption of this agile construction system.

In addition, a building’s integrity depends on rigorous geometric standardisation so modules can be transported correctly by road. Dimensions must comply with local motorway width limits. Key infrastructure requirements to make this transport workable include:

• Strict adherence to maximum road-freight dimensions on the network.
• Efficient vertical integration with suppliers of prefabricated steel components.
• Compliance with zoning and safety rules in regional metropolitan areas.

What is the future of the global construction industry?

For Western developers, the realistic route is not to replicate the five-day assembly exactly under restrictive rules. A more effective move is to blend modular techniques with traditional methods in a hybrid approach. This smart combination drives the technical evolution of the modern industry.

Bringing factory-made interior components together with classic civil engineering helps bypass major logistical bottlenecks. This mixed methodology balances production agility with local regulatory demands. The future points towards a notable expansion of this flexible architecture concept.

References: BROAD Holon Building – BROAD U.S.A. INC.