SU1650890A1 - Method of prestressing reinforcements of ferroconcrete articles - Google Patents
Method of prestressing reinforcements of ferroconcrete articles Download PDFInfo
- Publication number
- SU1650890A1 SU1650890A1 SU884466092A SU4466092A SU1650890A1 SU 1650890 A1 SU1650890 A1 SU 1650890A1 SU 884466092 A SU884466092 A SU 884466092A SU 4466092 A SU4466092 A SU 4466092A SU 1650890 A1 SU1650890 A1 SU 1650890A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- tension
- concrete products
- reinforced concrete
- rods
- different
- Prior art date
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Abstract
Изобретение относитс к способам напр жени арматуры при изготовлении предварительно напр женных железобетонных изделий. Цель изобретени - повышение качества железобетонных изделий за счет обеспечени одинакового нат жени всех арматурных стержней . Способ предварительного напр жени арматуры железобетонных изделий заключаетс в следующем. В формы 3 укладывают арматурные стержни 4, между подвижными упорами 1 и 2 устанавливают разное рассто ние, при этом рассто ние между анкерными головками напр гаемых стержней также принимаетс разным. При групповом нат жении механизмом одновременно всех стержней 5 с .заданным усилием Р сначала выбирают зазоры, но т.к. у каждого стержн эти зазоры разные, то и сте;- пень нат жени , а следовательно, и предварительное напр жение каждого стержн разные, что приводит к резкому снижению качества железобетонных изделий. Чтобы получить одинаковую степень нат жени , необходимо выбрать технологические зазоры, а .потом производить групповое нат жение всех стержней. В этом случае качество железобетонных изделий резко возрастает, 2 ил о (ЯThe invention relates to methods of stressing reinforcement in the manufacture of prestressed concrete products. The purpose of the invention is to improve the quality of reinforced concrete products by ensuring the same tension of all reinforcing bars. The method of prestressing reinforcement of reinforced concrete products is as follows. The reinforcing bars 4 are placed in the molds 3, a different distance is set between the movable stops 1 and 2, and the distance between the anchor heads of the tensioned rods is also assumed to be different. When the group tension mechanism simultaneously all rods 5 with a given force P, the gaps are first selected, but since for each bar these gaps are different, then also for the ste; - the tension stump and, consequently, the pre-stress of each bar is different, which leads to a sharp decrease in the quality of reinforced concrete products. To obtain the same degree of tension, it is necessary to select the technological gaps, and then to produce a group tension of all the rods. In this case, the quality of reinforced concrete products increases dramatically, 2 or o (I
Description
Фиг. 2FIG. 2
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU884466092A SU1650890A1 (en) | 1988-07-26 | 1988-07-26 | Method of prestressing reinforcements of ferroconcrete articles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU884466092A SU1650890A1 (en) | 1988-07-26 | 1988-07-26 | Method of prestressing reinforcements of ferroconcrete articles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU1650890A1 true SU1650890A1 (en) | 1991-05-23 |
Family
ID=21392129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU884466092A SU1650890A1 (en) | 1988-07-26 | 1988-07-26 | Method of prestressing reinforcements of ferroconcrete articles |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU1650890A1 (en) |
-
1988
- 1988-07-26 SU SU884466092A patent/SU1650890A1/en active
Non-Patent Citations (1)
| Title |
|---|
| Авторское свидетельство СССР F 1337500, кл. Е 04 G 21/12, 1985. * |
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