Liu Hua, one of the top ten excellent engineers of Zhongtian holding group, graduated from the urban landscape specialty of Hainan University
. 
He has worked as an engineer in Zhongtian for 10 years and won the title of “top ten excellent engineers” of Zhongtian holding group in 2020
. 
On the occasion of International Women’s day, let’s approach female engineer Liu Hua and listen to her story
. 
Liu Hua of Zhongtian South China group is a real “South Chinese”
. 
He was born and raised in Guangxi, studied in Hainan and worked in Guangdong
. 
She is also a woman who is dedicated to her major
. 
In the past 12 years, she has been devoted to building technology from interior design, mechanical and electrical installation to BIM application
. 
Since joining South China group in January 2010, Liu Hua has participated in several major landmark projects of South China group, including two Luban Award projects: Sanya Phoenix Island and Guangzhou Xinguang city garden; three headquarters projects: Yajule headquarters building, Zhongtian South China group headquarters building and Xinghewan headquarters building
. 
1、 At the beginning of 2010, Liu Hua, who has been doing interior design for two years, joined Zhongtian as a professional technical assistant in Sanya Phoenix Island project
. 
At that time, the conditions of the project department were very difficult
. 
The kitchen compartment made of waste bricks was used as the dormitory
. 
The bathroom was surrounded by wood formwork, and the roof of the dormitory was paved with color steel plate
. 
Mice could be heard fighting on it every night
. 
Looking at the falling dust, Liu Hua said to himself secretly: This is life
. 
Every year there are typhoons landing in Hainan
. 
In 2011, on the night of Typhoon “Nasha” landing, Liu Hua’s prefabricated house was only more than 20 meters away from the sea, and it was shaking all the time
. 
She was staring at the roof all night for fear that the prefabricated house would collapse and be blown into the sea
.
She secretly encouraged herself: don’t be afraid, only if she can bear hardships can she feel the sweetness of life
.
In 2012, typhoon “Shanshen” came
.
It was stormy at midnight
.
When the technical director of the project heard that the basement of Building 5 was flooded, he immediately put on his raincoat and rushed to the basement
.
When he came back, it was nearly 3 a.m
.
and he was all wet
.
“Although we can’t control the weather, we should control the loss to the minimum,” the technical director told Liu Hua At that moment, Liu Hua understood what “responsibility” was
.
Photo: Sanya Phoenix Island project, because his father was a senior fitter, Liu Hua was deeply influenced and interested in machine repair
.
Before going to Sanya Phoenix Island project, although Liu Hua had done the mechanical and electrical information of a project, he did not really touch every process
.
The mechanical and electrical construction experience of the three property hotel apartments of the project has become the starting point of Liu Hua’s mechanical and electrical technical reserves
.
The small Liu Hua has become the small tail behind the workers in the project, and does not let go of any kind of construction process operation
.
When the fire galvanized steel pipe is threaded, she squats on the side for several turns; when the PPR water pipe is hot-melt connected, she calculates the time nearby; when the iron pipe is cut with sparks, she hides in the distance to watch
.
The cutting of the iron sheet of the air duct and the laying of the cable attracted the curious Liu Hua
.
Gradually, Liu Hua mastered the conventional mechanical and electrical construction operation
.
In the eyes of workers, she changed from a young girl to a professional mechanical and electrical engineer
.
In the Sanya Phoenix Island project, Liu Hua first came into contact with comprehensive pipeline layout and pipeline pre assembly
.
Because the overall shape of the project building is oval and the internal public walkway is extended in an arc, the pipeline is required to be installed in an arc
.
Basement mechanical and electrical includes water supply and drainage, fire protection, building electrical, ventilation and air conditioning, intelligent building and other professional
.
The arc-shaped pipeline and multi-layer pipeline layout greatly increase the difficulty of comprehensive pipeline installation
.
In the face of this problem, under the guidance of the electromechanical technical director, Liu Hua went down to the basement with a pen, a drawing and a tape measure to review the site structure size and electromechanical pipe section size, draw the layout of electromechanical pipeline by CAD, and form the blanking list by section, so as to effectively reduce the cost The difficulty of assembly construction of complex pipeline on site is analyzed, which is affirmed by the owner
.
By 2013, Liu Hua had been in the project department for three years, in her own words, “three years out of society.”
.
In the past three years, she not only accepted the baptism of typhoon, but also withstood various challenges in her work
.
2、 BIM’s first experience in March 2013, because of the experience of mechanical and electrical work in the project department, Liu Hua went to work in Zhongtian installation Guangdong branch
.
The first task is to bid
.
Liu Hua checked two mechanical and electrical bidding documents with a total of more than 1000 pages page by page to understand the owner’s technical requirements, find out the unclear terms in the tender and put forward technical questions
.
In addition to bidding, the leader also arranged for her to calculate the quantity of the project
.
Due to the shortage of personnel at that time, Liu Hua worked overtime almost every day to calculate the quantity
.
She could always be seen in the empty office late at night
.
With the construction experience accumulated in the project department, the budget accuracy of mechanical and electrical engineering handled by Liu Hua has reached more than 95%, which provides strong support for the bidding work
.
In the preparation of the technical proposal part of the tender, Liu Hua felt that her mechanical and electrical specification knowledge was insufficient, so she bought a lot of mechanical and electrical construction and acceptance specifications, and began to learn from the specifications in a down-to-earth way
.
Liu Hua also works as a quality manager
.
When she goes to the project department, she will take the company’s “three hundred common quality problems” to inspect the site one by one, and explain the standard practices and matters needing attention to the workers
.
Because of her efforts, the construction quality of the project has been improved, and she has become a quality director herself
.
As a woman, she grows up very fast
.
In October 2013, Liu Hua came into contact with the word Bim in a bid
.
Her previous work experience and intuition told her that BIM would become a trend
.
Sure enough, soon after that, Zhongtian installation organized a BIM software Revit training, and Liu Hua also took part in it
.
From traditional software CAD to Revit, she thought it was a turning point from 2D to 3D
.
After the training, she continued to look for videos on the Internet for self-study
.
In this way, while learning and doing, Liu Hua participated in the BIM deepening design of the air conditioning room of Yajule headquarters building
.
Because of the manufacturer’s reasons, the position of the water supply pipe and the return pipe of the air conditioning unit’s water supply and return pipe were installed reversely, resulting in that the original design pipeline could not be installed
.
Liu Hua modified the electromechanical integrated model overnight, adjusted the pipeline route, and communicated with the pipeline processing plant in time to modify the pipeline size
.
This adjustment avoids the loss, and the advantages of BIM application in solving field problems are fully revealed
.
Liu Hua is full of expectations for BIM
.
Left: Liu Hua and his mother right: Liu Hua shares personal work experience and experience
.
In more than two years of Zhongtian installation, Liu Hua has accumulated experience in mechanical and electrical construction and acceptance of many projects
.
At the same time, because he participated in the Luban Award Evaluation of Sanya Phoenix Island project, he has also deeply studied the preparation and acceptance of mechanical and electrical completion acceptance data
.
These experiences enable Liu Hua to master the requirements of mechanical and electrical construction specifications System knowledge, after her full-time BIM application work laid a solid foundation
.
3、 BIM is inseparable from the cooperation with Zhongtian South China group in the bidding process of Shenzhen Ping’an international financial center building and other projects
.
In October 2015, Liu Hua was transferred from Zhongtian installation to Zhongtian South China group design center
.
The newly established design center is all fresh university graduates except for director Hu kaiyong and Liu Hua
.
As the only engineer with mechanical and electrical BIM project experience, Liu Hua became the BIM leader
.
She used the evening time to organize everyone to conduct BIM modeler pre examination training, and finally all the members obtained the first level modeler certificate
.
Photo: training for technical director of the branch company
.
In December 2015, the assembly project investment promotion Kaiyuan center started bidding, and the owner clearly proposed to apply BIM Technology.
.
