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 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!
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.
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.
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