This document summarizes research from the Department of Building Constructions at a Faculty of Civil Engineering and Architecture. It outlines three key areas of research: 1) wooden structures and connections, 2) frame-membrane steel constructions, and 3) the stress-strain state of reinforced concrete structures. For the second area, research focuses on calculating plane prestressed cylindrical membranes and developing frame and rod assemblies. This research has resulted in various publications, patents, and the defense of two PhD dissertations on reinforced concrete structures.

1. Department of
Building
constructions
Faculty of Civil Engineering
and Architecture

2. 1-st Research Area
Building structures research

3. Prospects for research directions:
 Method of finite elements in voltages;
 Wooden structures with connections on tree nails connectors;
 Study of building coating frame-membrane steel
constructions.

4. Wooden structures with connections on tree
nails connectors
PhD, Assoc. Prof. S.А. Isupov
For 25 years (from 1980 to 2005), wooden structures with
connections on tree nails connectors have been used in the
construction of 10 warm sites, 10 saw mills workshops, 9
manufacturing facilities, 2 sports centers, as well as the pavilion at
the central market, constructions for Kirov Theatre Square
decoration, and in other industrial buildings.

5. Study of building coating frame-membrane
steel constructions
PhD, Assoc. Prof. М.А. Zhandarov

6. Method of calculation and the study of plane prestressed
cylindrical membranes:
- membranes with a uniformly distributed load;
- membranes with a concentrated load;
- membranes under the action of uniformly distributed and
concentrated loads;
- calculation of membranes with bending stiffness (profiled decking);
Structural designs of frame-membrane systems :
- paving block;
- space panel;
- amplification circuit of rod constructions with flat membrane ;
- prestressed panel.
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7. Development of rods and assemblies for CCM frames:
 Perforated beam with chess wall perforation;
 Perforated arch with chess wall perforation;
 Node rods connection of space frames;
 Prestressed flexible ground anchors;
 Flat thin sheet connection with skeleton prestressed membranes.
Collaboration of rod frames with a flat prestressed skin:
 Reinforcement of rods compressed in the plane of the membrane;
 Turning to the work of the stretched rod frame flat membrane;
 CCM, that provide a variable amount of reinforcement rods of compressed
frame.
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8. Certificates of authorship and patents on the topic "frame-
membrane structure of coatings“
 Zhandarov М.А. Certificate of authorship 746039, «Ground anchors»
 Zhandarov М.А. Certificate of authorship 876902, «Nodal connection of
rod construction»
 Zhandarov М.А. Certificate of authorship 1231170. «Method of
lightweight metal beams manufacturing »
 Zhandarov М.А. Patent 1555447, «Construction panel»
 Zhandarov М.А. Certificate of authorship 1716055. «Device for rod
structure amplification»
 Zhandarov М.А. Patent 2013502. «Method of spatial panel cover
manufacturing»
 Zhandarov М.А., Tupitsyn А.V. Patent № 2352735 «Prestressing steel
beam»
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9. Publications and conference papers
 Zhandarov М.А. «Features of arrangement and calculation of cross sections
through I-beams with chess wall perforation». Construction and architecture,
1989, №6.
 Zhandarov М.А. «Steel panel cover frame-membrane system». 2006.–№ 12.
– pp. 102-105.
 Zhandarov М.А., Sedlov V.I. Study of transverse rigidity flat cylindrical
membrane. Proceedings of the young scientists. Saint-Petersburg State
University of Architecture and Civil Engineering. Saint Petersburg. 1998.
 Zhandarov М.А., Sedlov V.I. «Roof coating of steel sheeting with clamped
edges». Proceedings of the Third All-Russian Conference NASKR-2001.
Cheboksary.
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10. 2-nd Research Area
Investigation of the stress-strain state
of the exploited reinforced concrete
structures, methods of calculation and
ways to strengthen the elements and
parts of buildings

11. Prospects for research directions:
 ASSESSMENT OF DEFECTS OR DAMAGES FOR BEARING
CAPACITY OF CONCRETE ELEMENTS;
 RESTORATION AND ENHANCEMENT OF CARRIER ABILITY
OF FLEXIBLE CONCRETE STRUCTURES BY THE
INTRODUCTION OF PRESTRESSED PUFFS OF DIFFERENT
TYPES;
 RESTORATION AND ENHANCEMENT OF CARRYING
CAPACITY OF FLEXIBLE CONCRETE STRUCTURES BY THE
INTRODUCTION OF UNRACKED AREA OF CONCRETE;

12. Research Objectives :
 Ordering of defects and structural damage in the Kirov region.
 The strength and stiffness of the normal sections of reinforced concrete
flexural members reinforced under load by increasing the tensile
reinforcement installation of an additional prestressing reinforcement in the
form of various puffs :
 - horizontal;
 - trussed;
 - combined.
 Investigation of the mechanism of the influence of debonding with concrete
reinforcement (in the form of longitudinal cracks and corrosion zones
collapse of the protective layer of concrete) on the strength of the normal
sections of reinforced concrete elements.
 Development of methodology for accounting debonding on the strength and
deformability characteristics of bent reinforced concrete elements.
 Investigation of the stress-strain state of the exploited concrete structures.

13. Results:
 Dissertation for the PhD degree was defended in 1999 on specialty
05.23.01 - constructions and buildings. «The strength and stiffness of the
normal sections of reinforced concrete flexural members reinforced with
load of hard trussed fittings».
 Dissertation for the PhD degree was defended in 2008 on specialty
05.23.01 – constructions and buildings. «The strength and stiffness of
reinforced concrete ribbed slabs with debonding of concrete
reinforcement».

14. Investigation of the stress-strain state of concrete structures full-
scale tests on a specially designed programs with the analysis of
the results.
- tests of reinforced sections of floors in a building under construction of
sports and entertainment complex in the park "Victory" in Kirov in 2005
Results:

15. - testing of damaged plates of floors in a building under
construction house number at Moskovskaya str. 115 in Kirov
in 2006
Results:

16. - Test of concrete slab industrial production multivacuum prestressed
extrusion molding formless brand NVK72-12-8 in 2008
Results:

17. - Test of concrete slab industrial production multivacuum prestressed
formless molding grade PB 2.72.12-8K7tp in 2009
Results:

18. Contacts:
The department of building structures: Head of the Department
Tyukalov Yu. Ya.
53-25-00
e-mail: tyukalov@vyatsu.ru
Vice-Rector for Science and Innovation: Litvinets S.G.
64-15-91
e-mail: litvinets@vyatsu.ru