FIELD: construction industry, strengthening of reinforced concrete beams with the aid of strut frames included in composition of bearing members of covering of buildings and structures or crane beams. SUBSTANCE: process of strengthening of reinforced concrete includes attachment of struts of strut frame to reinforced concrete beam, attachment of draw bar with drawing facility to parts near supports of reinforced concrete beam, to lower ends of struts of strut frame and its prestressing. Initial stressing of draw bar is carried out upon its attachment. Thereafter lateral cuts which height varies and is proportional to values of bending moment in reinforced concrete beam caused by loads are made in reinforced concrete beam on side of its compressed zone. Then draw bar is stressed again by drawing facility and lateral cuts are filled with stiff inserts. EFFECT: reduced labor input to strengthening of reinforced concrete beams and their enhanced resistance to crack formation. 6 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR COMBINATION PRESTRESSING OF PERFORATED TRUSSED BEAM | 2001 |
|
RU2190735C1 |
| WAY OF REINFORCEMENT OF BEAM BY PRE-STRESSED STRUT FRAME | 2001 |
|
RU2187608C1 |
| TRUSSED BEAM | 1999 |
|
RU2169242C1 |
| PRE-STRESSED TRUSSED BEAM | 1999 |
|
RU2169243C1 |
| PRESTRESSED TRUSSED BEAM | 2001 |
|
RU2186913C1 |
| PROCESS OF REINFORCEMENT OF BEAM WITH PRESTRESSED STRUT FRAME | 2002 |
|
RU2209278C1 |
| PRESTRESSED TRUSSED GIRDER | 2001 |
|
RU2184819C1 |
| PROCESS OF MOUNTING OF PRESTRESSED STRUTFRAMED BEAM | 2002 |
|
RU2208104C1 |
| PRE-STRESSED CABLE-STAYED STRUCTURE | 1999 |
|
RU2173751C2 |
| PRESTRESSED TRUSSED GIRDER | 2001 |
|
RU2186914C1 |
