Nanjing Yangtze River Bridge is a large-scale railway bridge project independently built by China people. 1958 to 1966, Wang presided over the preliminary design of Nanjing Yangtze River Bridge, was responsible for the steel beam design of the bridge, and assisted in examining and approving the construction design of the whole bridge. The steel beam of Nanjing Yangtze River Bridge was originally intended to use low alloy steel imported from the Soviet Union. However, due to the tense relationship between China and the Soviet Union, the Soviet Union's supply specifications could not meet the structural requirements. At this critical moment, Wang insisted on using domestic 16 manganese low alloy steel and went to Angang for emergency assistance with leading comrades of the Ministry of Railways. He closely cooperated with Angang technicians to study deeply. On the premise of ensuring the toughness and plasticity of steel, the strength can be appropriately reduced within the allowable range of steel requirements for large bridges, which doubles the qualified rate of finished products. Finally, the technical specification of "16 manganese bridge" is made for this steel, which meets the needs of steel beams of Nanjing Yangtze River Bridge. This kind of steel is still widely used in bridges, construction, shipbuilding and other departments. In the design of the steel beam of Nanjing Yangtze River Bridge, considering the increase of span, low alloy steel was adopted. Wang studied the vibration theory seriously and put forward a model test for the steel beam. The experiment was carried out with the assistance of the Research Institute of the Ministry of Railways, and the whole process of steel beam erection was simulated according to the design idea. In the actual erection process, observe various vibration responses and internal forces to guide the construction and ensure the erection safety. From this practical experience, he deeply realized that this is a kind of "cognitive cycle from theoretical discussion-model test-real bridge measurement", which is of certain significance to improve the level of ideological understanding and guide the practice of new structures in the future.
Wang was then the deputy chief engineer of the Bridge Engineering Bureau. In the early stage of the construction of Zhicheng Yangtze River Bridge from 65438 to 0966, he worked out the overall layout of the bridge. Wang participated in determining the design principle of installing steel beams in the sling frame in the unique cable-stayed cantilever beam erection scheme of the bridge. Jiujiang Yangtze River Bridge successfully adopted air curtain caisson, and Wang participated in and directed the scientific research work of the project. He also put forward the principle of bridge integral model and joint model to verify the key problems in structural design. As bridge engineers and technicians, not only should we properly handle some technical problems in normal design and construction, especially in emergency repair works, the task is urgent and there is no precedent for reference, which depends entirely on the ability to deal with emergencies. The main stream of the old Yellow River Bridge in Zhengzhou/pier KLOC-0/958 1 1 was washed away, and the north-south traffic artery in China was interrupted; During the construction of Nanjing Yangtze River Bridge 1964, the pontoons of piers 4 and 5 were in great danger of swinging, which is rare in the history of bridge construction. Wang actively participated in the repair of bridges damaged by the 1976 Tangshan earthquake, or made suggestions or supported rationalization suggestions, and participated in the correct decision-making of leaders. With the joint efforts of all bridge builders, the damaged bridge was repaired in a short time. 1963 joined the leading group of the expert group of the Ministry of Railways and went to Vietnam to inspect the Ma Jiang Bridge. Before he left, he was informed of the forecast that the flood might come ahead of time, and made several expected emergency repair plans. After arriving at the construction site, it is planned to wedge the cage and the pipe string with steel wire rope according to the actual situation, so that they can be connected into a whole, and concrete will be poured into the pipe string overnight to make the foundation take root in the rock stratum. Four days later, with only a small number of pipe columns under stress, it withstood the test of continuous flood peak and saved the pier. To this end, the Minister of Communications of the Vietnamese Government personally held a ceremony in recognition of our expert group.
Pier 25 of the West Bridge of Guangzhou Pearl River Bridge was originally designed as a pipe pile foundation. During the construction, it was found that there were caves in the bedrock, so the design had to be revised. Wang presided over the design, and the modified design of crossing the karst cave with super-forward drilling and sinking string was successful. The pipe string foundation and pipe string drilling method is a new technology born in the construction of Wuhan Yangtze River Bridge, and the pipe string drilling through the karst cave is the first case in the Pearl River Bridge.
It has its particularity to build a bridge in the cold area of Northeast China. In the early 1960s, in consultation with the Third Design Institute of the Ministry of Railways, Wang worked out the construction design scheme of dragging perforated steel beams on the bent of frozen river for the second Songhua River Bridge in Taolaizhao. The plan of repairing the subglacial foundation of Harbin Songhua River Bridge and the floating, vertical and horizontal movement of long-span steel beams was approved.
As the technical director of the Bridge Engineering Bureau, Wang is also responsible for examining and approving the design schemes of single-hole long-span steel beams of Jinsha River Bridge, Dadu River Bridge and Yalong River Bridge in chengdu-kunming railway undertaken by the Bureau. At the same time, he also assisted in examining and approving the design of Yibin Jinsha River Bridge, a three-hole continuous steel bridge across Zhonghelong. In the future, we will assist in arranging the borrowing of temporarily idle bridge members and assembling the temporary balance beam span, so as to realize the installation and deployment of the one-way full cantilever of Dadu River Bridge, the crossing and folding of the cantilever of Jinsha River Bridge and Yalong River Bridge. While completing the technical work of bridge design and construction, Wang also devoted a lot of energy to international technical exchange activities. He has visited many countries for bridge technology inspection and participated in international technical conferences, participated in or presided over bridge delegations from the Soviet Union, the United States, Japan, Britain, Yugoslavia, Romania, Southeast Asia, India and other countries, and also presided over the training of bridge builders from North Korea and Vietnam who practiced in China. In these activities, on the one hand, he introduced the achievements of bridge construction in China realistically, on the other hand, he carefully studied the new technological achievements abroad for our use. During the period of 1958, I participated in the bridge investigation team of the Ministry of Railways and went to the Soviet Union. Invited to attend the Moscow All-Soviet Bridge Mechanization Construction Conference, visited design institutes, research institutes and universities, and discussed the related issues of long bridge design and development with the Soviet expert group at the construction site for the reference of Nanjing Yangtze River Bridge design. The piers No.8 and No.9 of Nanjing Yangtze River Bridge adopt prestressed concrete pipe piles with a diameter of 3.6 meters, and draw on the beneficial experience that the pipe piles designed by Wang's trip sank into the sand layer more than 47 meters. During the period of 1976, the bridge investigation team organized by china civil engineering society visited the University of Tokyo, design institutes, research institutes, bridge factories and many bridge sites built or under construction, got to know the main experts and scholars in the Japanese bridge industry, and discussed the international level of modern bridges in an all-round way. He carefully studied Japan's advanced theory and technology in the design and construction of bridges in earthquake-stricken areas, new long-span structures, high-strength steel welding, and new deep-water foundations. , participated in the compilation and presided over the publication of the book "Overview of Bridges in Japan", which was republished because it was welcomed by readers. From 65438 to 0980, as the head of china civil engineering society delegation, Wang attended the annual meeting of American Society of Civil Engineers held in Miami, USA. During his visit to the United States, he discussed the fatigue and brittle fracture of bridges with American experts and professors from Caspian University. Visit and discuss the characteristics of long bridges and movable bridges built in the United States; He also agreed with the American side on the principle that the Chinese-American Society would co-host the (Beijing) International Bridge and Structure Technology Exchange Conference, which was successfully held in Beijing on 1982, and Wang participated in the evaluation and recommendation of Chinese bridge papers. In all previous technical exchanges, he has written or co-written more than one paper 10, which has been published in international conferences held in the United States, Britain and other countries or in foreign magazines.
In the technical exchange, Wang devoted himself to studying and learning from others, focusing on the design and construction of Chinese bridges. He is the main participant in the introduction and implementation of 10 technology project, in which the design of vertical double-page movable bridge and the arrangement system of movable mechanism have played a very good role in filling the gap in the design and construction of movable bridge in China. 1972, in cooperation with the construction machinery expert group of the Ministry of Communications, he worked out the general design of the vertical moving bridge of Project 330, paving the way for the future vertical bridge design in China. Tianjin Haihe Bridge was designed and built by Bridge Engineering Bureau in 65438-0985, which absorbed the basic principles of this imported project. For the development of China's bridge industry, Wang is extremely concerned about the training of bridge builders. Most of the college graduates who have worked under him have grown into technical leaders. After Wang Zai 1983 retired to the second line, he continued to care about training young and middle-aged technicians, actively organized them to learn technology, helped them revise and read academic papers, and some even helped translate them into English. Through his organization, recommendation and help, more than 65,438 young and middle-aged technicians were able to publish papers in important technical conferences or publications at home and abroad. 1983, he was 70 years old and sickly. He began to write a book about 170000 words, bridge engineering. The book was published in 1992 and will be published soon. This book is a summary of Wang Yisheng's experience in bridge construction, hoping to inspire the younger generation of bridge builders.