Recently, China State Construction International Global Headquarters Project
"Corner Column-free Cable-Free Curtain Wall Indoor Cantilevered Space"
That is, the hoisting of the steel structure of the "window of China Construction" has been completed
The construction of curtain wall (including cable curtain wall) is underway
CSCEC Global Headquarters Project is a major project in Jiangsu Province, with a total construction area of about 73,000 square meters, consisting of 1 high-rise office building (1# building) and 1 multi-storey office supporting building (2# building), with 21 floors and a height of 126 meters.
The southeast corner of the project building is set up with an open landscape platform with a 270° panoramic view, that is, the "window of construction", which is 75 meters from the ground and has a façade area of about 1,200 square meters, consisting of 21 groups of vertical single-cable systems with a span of 24.5 meters, and the maximum thickness of the steel truss flange plate is 100 mm, which is difficult to construct.
The project team adheres to the leadership of science and technology and intelligent construction, and makes every effort to promote the high-quality completion of the construction of "China Construction Window" through the application of a number of new technologies and new equipment~
Digital technology facilitates the intelligent selection of components
The project team uses BIM technology and digital twin technology
Simulation technology and other intelligent construction technologies
Optimize the installation equipment and conditions of "China Construction Window".
The deflection angle of the fixture is calculated by 11.5°
At the same time, it is suitable for the rotation of the glass under the action of wind load
Finally, it was decided to use a ball hinge fixture with a deflection angle of ±15°
Using the intelligent monitoring technology independently developed by China State Construction International
An intelligent pressure sensor is installed at the force transmission part of the cable
Real-time monitoring of cable force changes
For the safety and quality control of the cable structure of the "window of construction".
It provides accurate data support
"Construction site eye in the sky" helps full-time all-round supervision
The project team adopted an intelligent construction management system
All-weather unattended system
The whole process of construction is carried out
Intelligent, standardized and information-based supervision
"Window of China Construction" roof steel structure weld
All of them are first-class full penetration welds
Construction welding is mostly high-altitude work
The technical level of welders is extremely demanding
In order to facilitate the all-round inspection of the welding quality
The project department adopts an integrated management system
Collect the construction site on the mobile terminal
Information such as environment, progress and quality
The data is then dumped in the cloud
Finally, it is analyzed and processed in the background
It has effectively strengthened the quality management of "China Construction Window".
At present, all primary welds have been completed
100% one-time pass rate
Intelligent robots help high-altitude "threading the needle"
The positioning of the steel structure lugs of the "window of the construction industry".
Determines the installation accuracy of the cable
JGJ102-2003 Technical Code for Glass Curtain Wall Engineering
The upper end of the steel beam is required to reserve the hole center and the lower end of the ear plate hole
The verticality deviation should be controlled within 5 mm
In order to eliminate the measurement error caused by human operation
The project team adopts the independent research and development of China State Construction International
Intelligent Measurement Robots
to accurately control the center position of the reserved hole at the upper end of the steel beam
It effectively balances efficiency and precision
In the end, the deviation of the axis of the vertical cable is not more than 3 mm
Perfectly meets the specifications
Source: China State Construction International