State enterprise «National Institute for Development Infrastructure»
en UA

KOVALOV PETRO MYKOLAIOVYCH

Developed the design of continuous box bridge span structure.

Developer of U-shaped girders of 12 and 18 meters long.

Engaged in improving the operational performance of existing bridge structures.

-PATH OF LIFE-

Kovalov Petro Mykolaiovych was born in 1943.

In 1969 he graduated from the Road construction faculty of Kiev Automobile and Road Institute and obtained a diploma by “Bridges and tunnels” specialty and started his working path at “Ukrdiprodor” SE.

-WORKING PATH-

He started working at our institute in 1981 as the Head of Artificial Structures Department.

He was directly involved in the development of U-shaped girders of 12 and 18 meters long. The girders were adapted to the conditions of manufacturing in the existing hollow-core slab stands These girders eliminated the problem of voids formation and problem of splines, which were replaced by hinged joints. But these girders could not solve the main problem - increasing the length of bridge spans. The Artificial Structures Department headed by Petro Kovalev presented the initiative to create prefabricated girders with a length of 24 m, which in compare with the unified girders were 1.5 times lighter in weight and involved the use of stressed reinforcing bars of AIIIв class. The use of these structures started in the late 80's, including on the road Kyiv-Odesa.

-SCIENTIFIC INTERESTS-

In 90’s the developments of Petro Kovalev and his Department were concentrated on increasing of operational performance of existing bridge structures, prolongation of their service life. Much attention was paid to the development of methods of bridges repairing, in particular to the issues of  a reliable bridge deck arrangement. Proposals for bridges overlapping with monolithic slabs were developed; prefabricated monolithic spans on the basis of using unified beams were investigated; The design of a fundamentally new series of span structures made of stressed span elements (SSE) overlapped by a monolithic overhead slab were developed. 

For the development of the design of the experimental continuous box bridge span structure he was awarded a bronze medal of the VDNKh (Exhibition of Economic Achievements) of the Ukrainian SSR.

Petro Kovalev has 2 inventions and 26 published papers.

-AWARDS-

“Honored Road Worker of Ukraine” Award. 

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