Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Bonding force self-sensing slow-bonding intelligent steel strand and bonding force self-sensing method thereof
The invention relates to a bond stress self-sensing slow-bonding intelligent steel strand and a bond stress self-sensing method thereof. The bond stress self-sensing slow-bonding intelligent steel strand comprises a steel strand main body, an outer wrapping protective sleeve, a slow-setting adhesive filled between the steel strand main body and the outer wrapping protective sleeve, and a fiber grating string fixedly connected with the inner side of the outer wrapping protective sleeve, the fiber bragg grating string is in sliding connection with the intelligent steel strand through a metal bracket arranged on the steel strand main body; the metal support comprises a sliding ring arranged on the steel strand body in a sleeving mode and a fixed ring arranged on the sliding ring in a sliding and sleeving mode, and a connecting piece used for being connected with the fiber bragg grating string is arranged on the outer side of the fixed ring. When the bond stress between the concrete and the bond stress self-sensing slow-bonding intelligent steel strand is insufficient, the fiber bragg grating string is used for generating axial tension due to axial sliding of the outer wrapping protective sleeve in the tensioning process of the intelligent steel strand, and the axial tension enables the fiber bragg grating string to generate wavelength change. The method has the effects that the bond stress between the retarded-bonding intelligent steel strand and the concrete is effectively judged, and the construction quality of prestress retarded bonding is guaranteed.
本申请涉及一种握裹力自感知缓粘结智能钢绞线及其握裹力自感知方法，其包括钢绞线主体、外包保护套、填充在两者之间的缓凝粘合剂以及固定连接外包保护套内侧的光纤光栅串，光纤光栅串通过布置在钢绞线主体上的金属支架与智能钢绞线实现滑动连接；金属支架包括套设在钢绞线主体上的滑动圈、以及滑动套设在滑动圈上的固定圈，固定圈的外侧设置有用于与光纤光栅串连接的连接件；在混凝土与握裹力自感知缓粘结智能钢绞线握裹力不足时，光纤光栅串用于在智能钢绞线张拉过程中受外包保护套的轴向滑动产生轴向拉伸，轴向拉伸使光纤光栅串产生波长变化。本申请具有实现对缓粘结智能钢绞线与混凝土之间握裹力的有效判断，保证预应力缓粘结的施工质量的效果。
Bonding force self-sensing slow-bonding intelligent steel strand and bonding force self-sensing method thereof
The invention relates to a bond stress self-sensing slow-bonding intelligent steel strand and a bond stress self-sensing method thereof. The bond stress self-sensing slow-bonding intelligent steel strand comprises a steel strand main body, an outer wrapping protective sleeve, a slow-setting adhesive filled between the steel strand main body and the outer wrapping protective sleeve, and a fiber grating string fixedly connected with the inner side of the outer wrapping protective sleeve, the fiber bragg grating string is in sliding connection with the intelligent steel strand through a metal bracket arranged on the steel strand main body; the metal support comprises a sliding ring arranged on the steel strand body in a sleeving mode and a fixed ring arranged on the sliding ring in a sliding and sleeving mode, and a connecting piece used for being connected with the fiber bragg grating string is arranged on the outer side of the fixed ring. When the bond stress between the concrete and the bond stress self-sensing slow-bonding intelligent steel strand is insufficient, the fiber bragg grating string is used for generating axial tension due to axial sliding of the outer wrapping protective sleeve in the tensioning process of the intelligent steel strand, and the axial tension enables the fiber bragg grating string to generate wavelength change. The method has the effects that the bond stress between the retarded-bonding intelligent steel strand and the concrete is effectively judged, and the construction quality of prestress retarded bonding is guaranteed.
本申请涉及一种握裹力自感知缓粘结智能钢绞线及其握裹力自感知方法，其包括钢绞线主体、外包保护套、填充在两者之间的缓凝粘合剂以及固定连接外包保护套内侧的光纤光栅串，光纤光栅串通过布置在钢绞线主体上的金属支架与智能钢绞线实现滑动连接；金属支架包括套设在钢绞线主体上的滑动圈、以及滑动套设在滑动圈上的固定圈，固定圈的外侧设置有用于与光纤光栅串连接的连接件；在混凝土与握裹力自感知缓粘结智能钢绞线握裹力不足时，光纤光栅串用于在智能钢绞线张拉过程中受外包保护套的轴向滑动产生轴向拉伸，轴向拉伸使光纤光栅串产生波长变化。本申请具有实现对缓粘结智能钢绞线与混凝土之间握裹力的有效判断，保证预应力缓粘结的施工质量的效果。
Bonding force self-sensing slow-bonding intelligent steel strand and bonding force self-sensing method thereof
握裹力自感知缓粘结智能钢绞线及其握裹力自感知方法
NING ZHIWEI (Autor:in) / PEI CHANGRONG (Autor:in) / HOU RUIHUA (Autor:in) / BAI YANG (Autor:in) / DING ZHIFA (Autor:in) / LI WEIQING (Autor:in) / TIAN SHIJIE (Autor:in) / SHI YUSHAN (Autor:in) / CUI LINGSHENG (Autor:in) / WANG WENYONG (Autor:in)
26.11.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
E04C
STRUCTURAL ELEMENTS
,
Bauelemente
/
D07B
ROPES OR CABLES IN GENERAL
,
Seile oder Kabel allgemein
/
E04G
SCAFFOLDING
,
Baugerüste
/
G01L
Messen von Kraft, mechanischer Spannung, Drehmoment, Arbeit, mechanischer Leistung, mechanischem Wirkungsgrad oder des Drucks von Fluiden
,
MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
| Europäisches Patentamt | 2020
| Europäisches Patentamt | 2024
| Europäisches Patentamt | 2024
Tail Breaking Force in Thermosonic Wire Bonding with Novel Bonding Wires
| British Library Online Contents | 2008