North Xin'an, located in the west of Beijing's Shijingshan District Before 1978, there were many shops in Beixin'an, known as the "Little Wangfujing" in Shijingshan District, and the economic prosperity recorded many miracles of new Chinese industrial production and the pride of the first theater in Shijingshan District, the first cinema, the first state-run hospital, the first state-run grain store were born here. With the increasing acceleration of urban development, Beixin'an has become "the largest shantytown in Beijing" and "the last shantytown along Chang'an Avenue" has gradually evolved into a "nostalgia" in the hearts of the people of Shijingshan.
Old Days North Sim An
Since 2016, Shijingshan District has fully opened the task of transforming the North Xin'an plot, and the curtain wall project of the 656 plot of the North Xin'an Project, which is undertaken by China Construction Decoration Group, has also ushered in a perfect conclusion in recent days. Quickly build a certificate with Xiaobian to prove the rebirth of the butterfly of "Little Wangfujing"
Nirvana is reborn, and this dream is fulfilled
Before the transformation, the living conditions of the typical residents of the shantytown of Beixin'an, which was once "big, chaotic and difficult", were still stuck at the level of the 1970s and 1980s, when the former grand scene was no longer there, and the local residents in The predicament of Beixin'an were looking forward to the rebirth of Beixin'an all the time
Renderings of the North Xin'an Shantytown Renovation Project
Since undertaking the curtain wall project of plot 656 of the North Xin'an Project, China Construction Curtain Wall attaches great importance to improving people's livelihood as the starting point and actively integrates the concept of green technology innovation "construction" The area has embarked on a green development transformation and upgrading road After the office building known as the "Gate of Jingxi" in the transformation area is put into use, it will become an urban comprehensive landmark building that integrates office, commercial and other formats
Renderings of plot 656 of the North Xin'an Project
Green construction, smart empowerment
The total area of the curtain wall of plot 656 of the North Xin'an Project is about 83,000 square meters, of which the tower standard breathing curtain wall system of 45,000 square meters is the first breathing curtain wall project undertaken by China State Construction Curtain Wall
Real view of plot 656 of the North Xin'an Project
Breathing curtain wall is also known as double curtain wall, double ventilation curtain wall by the inner and outer curtain walls composed of two curtain walls between the inner and outer curtain walls to form a relatively closed air layer using air as a bad conductor of heat This feature uses exhaust equipment or natural wind to promote cold and hot air from the lower air inlet into the upper exhaust outlet to leave the use of flowing cold and warm air to reduce the temperature difference between the inner curtain wall and the room to ensure summer heat insulation and winter warmth The whole process is called breathing curtain wall
Breathing curtain wall airflow direction
In order to ensure the energy saving and emission reduction effect of the breathing curtain wall system, the project department of the 656 plot of North Xin'an adopts the mature closed internal circulation system breathing curtain wall as the main system through the control of the double-layer curtain wall louver ventilation window of the mechanical and electrical ventilation equipment, and connects the ventilation room layer between the two layers of the curtain wall with the HVAC exhaust pipe set at the top of the suspension to form a bottom-up mandatory air circulation to effectively reduce the energy consumption of the curtain wall to achieve green and low-carbon construction in 2020 successfully won the honor of "Beijing Green Model Site"
Breathing curtain wall control demonstration
Work hard together to overcome difficulties
Since entering the site, the project department of The 656 plot of North Xin'an has faced multiple challenges such as large construction volume and difficulties in material transfer with tight construction periods, among which the largest technical difficulty is the installation of aluminum ceilings in the air corridor at a height of 78 meters
Ceiling of the air corridor
In order to successfully overcome this difficult point, the project team held several technical research meetings "brainstorming" to brainstorm and solve the problems and finally decided to use the window wiper at the bottom of the corridor to install the aluminum plate ceiling
Use a window wiper to install the ceiling aluminum plate
The project team completed the installation of the ceiling aluminum plate within the track by changing the movement mode of the window cleaning machine, and the ceiling aluminum plate on both sides of the adjacent side used the window wiper located on the roof to install the installation process by adding a frame to the hanging basket to extend the work range and finally successfully completed the installation of the ceiling aluminum plate in the corridor to lay the foundation for achieving high-quality performance during the node construction period
Corridor unit body curtain wall hoisting
After tenacious struggle, the project department of North Xin'an 656 plot successfully won the highest peak to connect 60 cross-units with a total of nearly 9,000 cross-breathing glass curtain wall construction tasks The curtain wall construction area reached a total of more than 90,000 square meters and finally achieved perfect performance, ensuring delivery on schedule