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The high-quality construction of "Luohu Crown" accelerates to the cloud!

It is known as the "crown of Luohu".

Shenzhen Luohu 407 super high-rise project

The construction site is in full swing

Sprint to the 300-meter node with all your might!

The high-quality construction of "Luohu Crown" accelerates to the cloud!

The total construction area of the project is 273,500 square meters

It consists of a tower and a podium

The above-ground tower has 83 floors and a total height of 407 meters

Including concrete-filled steel tubes, steel-reinforced concrete, and reinforced concrete

and complex structural forms such as rigid column steel structures

The quality of concrete pouring becomes the most basic

It is also the most critical quality assurance

How the project fully implements lean construction standards

Let's take a look!

The high-quality construction of "Luohu Crown" accelerates to the cloud!

Design first raises the standard for large-volume concrete pouring

The project has entered the construction stage of the main structure above ground

About 450 cubic meters of concrete are poured at one time

It is difficult to maintain the continuity of pouring and prevent cracking

The project team passed the design

Draw a plan for pouring bulk concrete in advance

For pouring routes, pouring time,

The pouring sequence and other links are comprehensively planned

Matching the corresponding specifications of pumping equipment through the design

Define the pouring thickness of each layer

Quantitative standards such as concrete exit temperature and mold entry temperature

Strict implementation of real-time monitoring

Make sure the pouring is excellent the first time.

The high-quality construction of "Luohu Crown" accelerates to the cloud!

Technical research to ensure ultra-high pumping of high-strength concrete

The maximum concrete pumping height of the project is 379.9 meters

And the concrete has high strength and high viscosity

Ultra-high pressure pumping construction is difficult

The project team conducted several trial matchings

Optimized high-strength concrete has both good

Flowability, stability and pumpability

The slump is controlled at 180~220mm

In order to ensure that the first pump is sent to the top, it is poured uninterruptedly

The core tube adopts 2 domestic advanced units

HG19A-3R hydraulic placing machine for concrete pouring

All poured surfaces can be covered

Improve pouring speed and molding quality.

The high-quality construction of "Luohu Crown" accelerates to the cloud!

Ingenuity guards and optimizes the quality of concrete forming

The single-storey area of the core tube of the project is 754 square meters

The maximum cross-section of the wall is 1.4m

The structure forms are diverse and the nodes are complex

Concrete forming quality control is difficult

In the climbing formwork coverage area, the project adopts large steel formwork

Ensure the stiffness of the wall column formwork and reinforcement system

Concrete is used with paving and vibration

The plate vibrator is used with a vibrating rod for vibrating

After the completion of the finishing, the spray system is used for maintenance

Cover with plastic film to moisturize

Ensure the quality of the first molding.

The project has been awarded

Hubei Provincial Construction Engineering BIM Competition Class I Achievement

The second class of achievements of the National Engineering Construction Industry BIM Competition of the China Construction Enterprise Association

Hubei Province Engineering Construction Excellent QC Three Categories of Achievements

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