A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention discloses a prestress tensioning flat anchorage device assembly. The prestress tensioning flat anchorage device assembly comprises a limiting reinforcing plate and a flat anchor plate, wherein the limiting reinforcing plate is arranged at the front end of the flat anchor plate, a plurality of limiting holes are formed in the flat anchor plate, the limiting holes are aligned with conical clamping holes in the flat anchor plate in position, and the limiting holes are stepped holes with the small front parts and the large rear parts, so that each limiting hole forms a first limiting hole and a second limiting hole; each second limiting hole is a large hole close to the corresponding conical clamping hole, each first limiting hole is a small hole communicating with the corresponding second limiting hole, the aperture of each second limiting hole is larger than the aperture of a clamping sheet, the aperture of each first limiting hole is larger than the diameter of a steel strand and smaller than the aperture of the clamping sheet, and the depth of each second limiting hole is matched with the retraction amount of the clamping sheet. According to the prestress tensioning flat anchorage device assembly, the problems that a wire slips, the steel strands are broken, the outer ends of the clamping sheets are extruded and deformed, the tensioning direction of a jack is inclined, and the jack is deformed in the using process are effectively solved; in addition, it can be guaranteed that the clamping sheets have sufficient retraction space, and the requirement for the normal retraction amount of the clamping sheets is met.
本发明公开了一种预应力张拉扁形锚具组件，包括限位加强板和扁锚板，限位加强板设置在扁锚板前端，扁锚板上开设有多个限位孔，限位孔与扁锚板上锥形夹孔之间位置对正，其中，限位孔为前小后大的台阶孔，使限位孔形成第一限位孔和第二限位孔两部分，第二限位孔为紧挨锥形夹孔的大孔，第一限位孔为与第二限位孔连通的小孔，且第二限位孔的孔径大于夹片孔径，第一限位孔的孔径大于钢绞线的直径，且小于夹片孔径，第二限位孔的深度与夹片的回缩量相适配。本发明有效解决滑丝、钢绞线折断、夹片外端头被挤压变形、千斤顶张拉方向倾斜以及千斤顶在使用过程中变形的问题；此外，还能保证夹片有充分的回缩空间，满足夹片的正常回缩量要求。
The invention discloses a prestress tensioning flat anchorage device assembly. The prestress tensioning flat anchorage device assembly comprises a limiting reinforcing plate and a flat anchor plate, wherein the limiting reinforcing plate is arranged at the front end of the flat anchor plate, a plurality of limiting holes are formed in the flat anchor plate, the limiting holes are aligned with conical clamping holes in the flat anchor plate in position, and the limiting holes are stepped holes with the small front parts and the large rear parts, so that each limiting hole forms a first limiting hole and a second limiting hole; each second limiting hole is a large hole close to the corresponding conical clamping hole, each first limiting hole is a small hole communicating with the corresponding second limiting hole, the aperture of each second limiting hole is larger than the aperture of a clamping sheet, the aperture of each first limiting hole is larger than the diameter of a steel strand and smaller than the aperture of the clamping sheet, and the depth of each second limiting hole is matched with the retraction amount of the clamping sheet. According to the prestress tensioning flat anchorage device assembly, the problems that a wire slips, the steel strands are broken, the outer ends of the clamping sheets are extruded and deformed, the tensioning direction of a jack is inclined, and the jack is deformed in the using process are effectively solved; in addition, it can be guaranteed that the clamping sheets have sufficient retraction space, and the requirement for the normal retraction amount of the clamping sheets is met.
本发明公开了一种预应力张拉扁形锚具组件，包括限位加强板和扁锚板，限位加强板设置在扁锚板前端，扁锚板上开设有多个限位孔，限位孔与扁锚板上锥形夹孔之间位置对正，其中，限位孔为前小后大的台阶孔，使限位孔形成第一限位孔和第二限位孔两部分，第二限位孔为紧挨锥形夹孔的大孔，第一限位孔为与第二限位孔连通的小孔，且第二限位孔的孔径大于夹片孔径，第一限位孔的孔径大于钢绞线的直径，且小于夹片孔径，第二限位孔的深度与夹片的回缩量相适配。本发明有效解决滑丝、钢绞线折断、夹片外端头被挤压变形、千斤顶张拉方向倾斜以及千斤顶在使用过程中变形的问题；此外，还能保证夹片有充分的回缩空间，满足夹片的正常回缩量要求。
Prestress tensioning flat anchorage device assembly
一种预应力张拉扁形锚具组件
WU ANYANG (author)
2021-06-29
Patent
Electronic Resource
Chinese
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