Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
ПРЕДВАРИТЕЛЬНО ЦЕМЕНТИРОВАННЫЙ СТАЛЬНОЙ МАТЕРИАЛ С ПРЕДВАРИТЕЛЬНО НАПРЯЖЕННЫМ БЕТОНОМ (РС) И СПОСОБ ОТВЕРЖДЕНИЯ ПРЕДВАРИТЕЛЬНО ЦЕМЕНТИРОВАННОГО СЛОЯ ВНУТРИ НЕГО
A pregrouted PC steel material (10) includes a 19-wire-twisted PC strand (1), a pregrouted layer (2) disposed on an outer periphery of the PC strand (1), and a sheath (3) configured to cover an outer periphery of the pregrouted layer (2). A filling resin (4) is filled between steel wires (side wires) (1b, 1c, 1d). Since the filling resin (4) does not exude to the pregrouted layer (2) before tensioning of the PC strand (10), an operation of tensioning the PC strand (1) is not hindered by curing of the pregrouted layer (2). In contrast, since the gap between the steel wires is reduced when the PC strand (1) is tensioned, the filling resin (4) flows out (exudes) from between the steel wires to the pregrouted layer (2) to cure the pregrouted layer (2) only after the reduction.
ПРЕДВАРИТЕЛЬНО ЦЕМЕНТИРОВАННЫЙ СТАЛЬНОЙ МАТЕРИАЛ С ПРЕДВАРИТЕЛЬНО НАПРЯЖЕННЫМ БЕТОНОМ (РС) И СПОСОБ ОТВЕРЖДЕНИЯ ПРЕДВАРИТЕЛЬНО ЦЕМЕНТИРОВАННОГО СЛОЯ ВНУТРИ НЕГО
A pregrouted PC steel material (10) includes a 19-wire-twisted PC strand (1), a pregrouted layer (2) disposed on an outer periphery of the PC strand (1), and a sheath (3) configured to cover an outer periphery of the pregrouted layer (2). A filling resin (4) is filled between steel wires (side wires) (1b, 1c, 1d). Since the filling resin (4) does not exude to the pregrouted layer (2) before tensioning of the PC strand (10), an operation of tensioning the PC strand (1) is not hindered by curing of the pregrouted layer (2). In contrast, since the gap between the steel wires is reduced when the PC strand (1) is tensioned, the filling resin (4) flows out (exudes) from between the steel wires to the pregrouted layer (2) to cure the pregrouted layer (2) only after the reduction.
ПРЕДВАРИТЕЛЬНО ЦЕМЕНТИРОВАННЫЙ СТАЛЬНОЙ МАТЕРИАЛ С ПРЕДВАРИТЕЛЬНО НАПРЯЖЕННЫМ БЕТОНОМ (РС) И СПОСОБ ОТВЕРЖДЕНИЯ ПРЕДВАРИТЕЛЬНО ЦЕМЕНТИРОВАННОГО СЛОЯ ВНУТРИ НЕГО
30.01.2018
Patent
Elektronische Ressource
Russisch
IPC:
E04G
SCAFFOLDING
,
Baugerüste
Europäisches Patentamt | 2017
Europäisches Patentamt | 2019
Europäisches Patentamt | 2016
Europäisches Patentamt | 2020