Hu Yuxian was born in Beijing on October 14, 1922. His ancestral home was Wuchang, Hubei. He moved with his family when he was young and eventually settled in Wuhan, Hubei. He was smart when he was young, and he began to study hard in middle school. In 1940, he was promoted to Nanjing Central University (now Nanjing University), and a year later he transferred to National Chiao Tung University (now Shanghai) Jiaotong University) Department of Civil Engineering. In 1944, Hu Yuxian traversed the Japanese army's blockade on foot with luggage on his back, and moved from Nanjing to Chongqing to continue his studies. He completed his university studies in 1946.
In 1946, when Hu Yuxian was in National Chiao Tung University, his transcript (recorded the academic results of each subject during Hu Yuxian University.)
Out of the desire for knowledge, he was also influenced by the idea of saving the country by science. At that time, Mr. Hu Yuxian had a strong desire to study abroad. After many efforts, he obtained financial support for studying abroad. In August 1948, Mr. Hu Yuxian went to the United States to study abroad, studying for a master's degree and a doctorate degree in the Department of Civil Engineering of the University of Michigan in the United States.
I was passionate about sports while studying at the University of Michigan in the United States. In desperation, I can only study and work in the United States for a while, and I have to wait for the opportunity to return to China. While working in New York, U.S., Hu Yuxian has never forgotten his belief in returning to China to participate in the construction of New China. He took the initiative to give up a job as a well-paid structural design team leader, and went to a large bridge design company with a low salary to work in large bridges. The purpose of design learning is to prepare for the construction of large-scale bridges on the land of the motherland in the future.
In 1955, Hu Yuxian and his family gave up the superior living conditions in the United States.Return to the embrace of the motherland without hesitation. When Hu Yuxian returned to the country and boarded the ship, a US official once said with a sarcasm: "You will be a general when you go back." Hu Yuxian replied firmly: "No, I will only be a soldier when I return."
After returning home, he Regardless of the hardship of the living environment, he is engaged in structural theory research at the Institute of Civil Engineering and Architecture, Chinese Academy of Sciences (now , Institute of Engineering Mechanics, China Earthquake Administration). In the early 1960s, he began to devote himself to the scientific research of seismic engineering and pioneered engineering seismology in our country. In addition, Mr. Hu Yuxian took the lead in researching the impact of site conditions on earthquakes and earthquake damage, and applied the main conclusions to the seismic design of building structures in China.
When studying the influence of site conditions on the building structure, the earthquake intensity was used. Hu Yuxian considered: First, a weak site is likely to cause foundation failure; second, a weak site may change the characteristics of ground motion. Simply increasing the intensity of does not reflect the impact of site conditions well. He proposed that should use a different response spectrum in the seismic design. This has important guiding role and application value for the revision of intensity standards, intensity zoning, and revision of seismic codes. adopted the influence of site conditions on the response spectrum in the seismic code. This work is more than ten years earlier than that of the United States and Japan.
Seismometer used by earthquake engineer Hu Yuxian
In 1970, an earthquake of magnitude 7.7 occurred in Tonghai, Yunnan. Prior to this, the survey on the earthquake site generally used China Earthquake Intensity Scale . Hu Yuxian discovered through on-site inspections and discussions with other experts that only relying on the index of earthquake intensity to evaluate the damage at the earthquake site can only reflect part of the content, and cannot reflect the damage of the disaster in detail.
Based on a detailed investigation of the site, the "seismic damage index" method is proposed to measure the impact of site conditions on the seismic damage of buildings.He divided the destructive situation of the earthquake disaster in more detail, and considered the various factors of earthquake damage to the house, such as site conditions, house structure type, building quality, etc., so that our country can be more reasonable Assessing earthquake disasters provides an important basis for the party and government's decision-making on earthquake relief.
In 1974, Hu Yuxian (formerly) went to Yongshan, Yunnan for a geological survey
Tangshan Earthquake Relic Investigation
In the 1980s, Hu Yuxian based on China’s national conditions, dared to innovate, and ranked first in the organization The deterministic method adopted by the second generation and second-generation zoning maps was combined with the probabilistic method adopted internationally at that time, and a comprehensive probability method for seismic risk analysis was proposed. This method has been written into Chinese engineering specifications, which has greatly promoted China's engineering construction and effectively improved the engineering's seismic design level.
Academician Hu Yuxian still applied to the leaders when he was nearly 80 years old, hoping to visit the earthquake site. He said: "Don't worry about my body. If you don't let me go to the site, my scientific research life will end." .
In August 2008, Hu Yuxian attended the Wenchuan Earthquake Engineering Seismic Damage Survey and Exchange Seminar in Chengdu (the first row is the eighth from the left is Hu Yuxian)
Academician Hu Yuxian has not only made outstanding achievements in the field of scientific research for China’s earthquake research Dedication has also trained a large number of experts and scholars in the field of earthquake engineering for our country, which has played a vital role in the construction and development of the discipline. Academician Hu Yuxian encourages students to actively think about problems, be willing to discuss and dare to argue. He often discusses with the students in the office, allowing them to express their opinions frankly, and sometimes they will conduct several concentrated discussions on an academic issue, so that the students can form a deeper understanding of the problem.
In the 1960s, Hu Yuxian and Liu Huixian discussed the postgraduate training program (the second from the right is Hu Yuxian)
Academician Hu Yuxian is a recognized master in the field of earthquake engineering.However, he often claims to be an engineer, and he is indifferent to fame and fortune and being simple in his life. His rigorous scholarship and his practical attitude in scientific research have influenced generations of scholars. He has been struggling to be on the front line of earthquake scientific research, devoted himself to the cause of earthquake prevention and disaster reduction in our country, and constantly "exploited territory" in the field of earthquake engineering.
References
1. Institute of Geophysics, China Earthquake Administration. "Academician Hu Yuxian [Editor of Hu Yuxian] _p11 famous journal of earthquake engineering J]. World Earthquake Engineering, 1985(02): 78-80.
3. Yan Xiujie. The person I admire—Welcome to the 90th birthday of Academician Hu Yuxian[J]. International Earthquake Development.
4. Chinese Scientist Museum.
.-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-