SU87025A1 - Reinforced concrete beam-top for trapezoidal support at preparatory workings - Google Patents
Reinforced concrete beam-top for trapezoidal support at preparatory workingsInfo
- Publication number
- SU87025A1 SU87025A1 SU403642A SU403642A SU87025A1 SU 87025 A1 SU87025 A1 SU 87025A1 SU 403642 A SU403642 A SU 403642A SU 403642 A SU403642 A SU 403642A SU 87025 A1 SU87025 A1 SU 87025A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- reinforced concrete
- concrete beam
- trapezoidal support
- preparatory workings
- rods
- Prior art date
Links
Landscapes
- Reinforcement Elements For Buildings (AREA)
Description
Предметом изобретени вл етс железобетонна трубчата балкаверхн к дл тра-пециевидной крепи при подготовительных выработках, арматура которой состоит ив металлических, продольно размещенных стержней, перехватываемых многогранной спиралью из металлического прута.The subject of the invention is a reinforced concrete tubular beam top for tra-specific support during preparatory workings, the reinforcement of which consists of metal, longitudinally placed rods intercepted by a multifaceted spiral of a metal rod.
Устройство подобных железобетонных труб, пзготовл емых центрифугированием , известно.The device of such reinforced concrete tubes prepared by centrifugation is known.
Отличительна особенность описываемой балки-верхн ка заключаетс в том, что в зоне раст жени балки в качестве арматуры применен многожильный стальной канат. Таквм образом, в наиболее нагруженной зоне балки создаетс лучшее сцепление между бетоном и арматурой , а следовательно, и большее сопротивление действию нагрузок.A distinctive feature of the described top beam is that in the stretching zone of the beam, a multicore steel wire is used as reinforcement. Thus, in the most loaded zone of the beam, a better adhesion between concrete and reinforcement, and consequently, greater resistance to loads, is created.
На фиг. 1 изображена описываема балка-верхн к в ,ем виде; на фиг. 2 - то же, вразрезе по .4-.4 иа фиг. 1; на фиг. 3 - металлический каркас.FIG. 1 depicts the described beam-top to in, it is; in fig. 2 - the same, contrary to .4-.4 and figs. one; in fig. 3 - metal frame.
Балка-верхн к представл ет железобетонную трубу /, арматура которой состоит И8 рабочих стержней 2, коротких стержней 3 и многогранной спирали 4 (фиг. 1, 2 и 3).Beam-top to represents a reinforced concrete pipe /, the reinforcement of which consists of I8 working rods 2, short rods 3 and a multifaceted spiral 4 (Figs. 1, 2 and 3).
Многогранна снираль 4 имеет шаг, равный 40-50 мм в пролете балки п 10 лиг - в опорах (на концах длиною 150 мм) верхн ка. Рабочие стержни 2 арматуры делаютс из прутковоГ сталп № 3 и 5 и пр де изнопаенного каната.The multifaceted ribbing 4 has a pitch equal to 40-50 mm in the span of the beam and 10 leagues - in the supports (at the ends of a length of 150 mm) the top. The working rods 2 of the reinforcement are made of rod stal no. 3 and 5, and also made of a foam rope.
Стержни из пр дей изношенного каната расположены в раст нутой зоне, в углах монтажной арматуры, наиболее удаленных от. нейтральной осп изгиба. Два стержн из ирутково стали расположены к сжатой и два в раст нутой зонах.Rods from a worn rope strand are located in the stretched zone, in the corners of the installation fittings furthest from. neutral pox bending. Two rods of irutkovo steel are located to the compressed and two in the extended zones.
Свободные углы в монтажной арматуре между стержн ми 2 в опорахверхн ка заполн ютс короткими монтажными стержн ми 3.The free angles in the mounting fixture between the rods 2 in the upper supports are filled with short mounting rods 3.
Неровна поверхность пр дей (образованна свивкой проволок в пр дь) обеспечивает хорошее сцепление их с бетоном.The uneven surface of the strands (formed by twisting the wires into the strands) ensures their good adhesion to the concrete.
- 2 - 2
N° 87025 Предмет изобретени N ° 87025 Invention
Железобетонна балка-верхн к лл трапециевидной крепи при подготовительных выработках, выполненна в форме трубы, отличающа с - тем,что в зоне раст жени балки в качестве арматуры применен стальной многожильный канат.Reinforced concrete beam-to-top trapezoidal support at preparatory workings, made in the form of a pipe, characterized in that, in the zone of stretching of the beam, a steel multicore cable was used as reinforcement.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU403642A SU87025A1 (en) | 1949-09-01 | 1949-09-01 | Reinforced concrete beam-top for trapezoidal support at preparatory workings |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU403642A SU87025A1 (en) | 1949-09-01 | 1949-09-01 | Reinforced concrete beam-top for trapezoidal support at preparatory workings |
Publications (1)
Publication Number | Publication Date |
---|---|
SU87025A1 true SU87025A1 (en) | 1949-11-30 |
Family
ID=48258883
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU403642A SU87025A1 (en) | 1949-09-01 | 1949-09-01 | Reinforced concrete beam-top for trapezoidal support at preparatory workings |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU87025A1 (en) |
-
1949
- 1949-09-01 SU SU403642A patent/SU87025A1/en active
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