Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Support pre-pressing device based on pier top prestress and construction method
The invention provides a support pre-pressing device based on pier top prestress. The support pre-pressing device comprises a force transmission system, a stress system and an anchoring system. The force transmission system comprises a bearing beam and a plurality of longitudinal beams (3) which are longitudinally supported on the top surface of the bearing beam; the stress system comprises an upper carrying pole beam, a lower carrying pole beam and a jack; the anchoring system comprises an anchoring beam (8), a pier top vertical prestress applying device, a finish rolling deformed steel bar sleeve (9), a pier top prestress (10) and a finish rolling deformed steel bar nut; the anchoring beam is made of double section steel, holes are formed according to pier top prestress, the anchoring beam penetrates through the pier top prestress during installation, the anchoring beam is anchored through a finish rolling deformed steel bar nut above the anchoring beam, the back pressure device is anchored through the anchoring system during support pre-pressing, the pier top vertical prestress applying device outputs pre-pressing load, and the pre-pressing load is transmitted downwards through the force transmission system. The pre-pressing load uniformly functions on a bracket system (12). And by adjusting the reading of an oil pressure gauge, each stage of pre-pressing load is loaded, so that the aim of pre-pressing the bracket is fulfilled. The invention further provides a corresponding construction method.
提供一种基于墩顶预应力的支架预压装置，包括：包括传力体系、受力体系及锚固体系；传力体系包括垫梁及纵梁(3)，纵梁为多根，纵向支撑在垫梁的顶面上；受力体系包括上扁担梁、下扁担梁及千斤顶；锚固体系包括锚固梁(8)、墩顶竖向预应力施加装置、精轧螺纹钢套筒(9)、墩顶预应力(10)及精轧螺纹钢螺母；锚固梁采用双拼型钢并根据墩顶预应力布置开孔，安装时将锚固梁穿过墩顶预应力并在上方用精轧螺纹钢螺母锚固，支架预压时，锚固体系将反压装置锚固，墩顶竖向预应力施加装置输出预压荷载，通过传力体系向下传递，均匀作用在支架体系(12)上，通过调整油压表读数，加载至各级预压荷载，达到支架预压的目的。还提供了相应的施工方法。
Support pre-pressing device based on pier top prestress and construction method
The invention provides a support pre-pressing device based on pier top prestress. The support pre-pressing device comprises a force transmission system, a stress system and an anchoring system. The force transmission system comprises a bearing beam and a plurality of longitudinal beams (3) which are longitudinally supported on the top surface of the bearing beam; the stress system comprises an upper carrying pole beam, a lower carrying pole beam and a jack; the anchoring system comprises an anchoring beam (8), a pier top vertical prestress applying device, a finish rolling deformed steel bar sleeve (9), a pier top prestress (10) and a finish rolling deformed steel bar nut; the anchoring beam is made of double section steel, holes are formed according to pier top prestress, the anchoring beam penetrates through the pier top prestress during installation, the anchoring beam is anchored through a finish rolling deformed steel bar nut above the anchoring beam, the back pressure device is anchored through the anchoring system during support pre-pressing, the pier top vertical prestress applying device outputs pre-pressing load, and the pre-pressing load is transmitted downwards through the force transmission system. The pre-pressing load uniformly functions on a bracket system (12). And by adjusting the reading of an oil pressure gauge, each stage of pre-pressing load is loaded, so that the aim of pre-pressing the bracket is fulfilled. The invention further provides a corresponding construction method.
提供一种基于墩顶预应力的支架预压装置，包括：包括传力体系、受力体系及锚固体系；传力体系包括垫梁及纵梁(3)，纵梁为多根，纵向支撑在垫梁的顶面上；受力体系包括上扁担梁、下扁担梁及千斤顶；锚固体系包括锚固梁(8)、墩顶竖向预应力施加装置、精轧螺纹钢套筒(9)、墩顶预应力(10)及精轧螺纹钢螺母；锚固梁采用双拼型钢并根据墩顶预应力布置开孔，安装时将锚固梁穿过墩顶预应力并在上方用精轧螺纹钢螺母锚固，支架预压时，锚固体系将反压装置锚固，墩顶竖向预应力施加装置输出预压荷载，通过传力体系向下传递，均匀作用在支架体系(12)上，通过调整油压表读数，加载至各级预压荷载，达到支架预压的目的。还提供了相应的施工方法。
Support pre-pressing device based on pier top prestress and construction method
一种基于墩顶预应力的支架预压装置及施工方法
JIANG JINMING (Autor:in) / JIN QI (Autor:in) / ZHANG PENGFEI (Autor:in) / LI BIN (Autor:in) / HE LINGXI (Autor:in) / PENG JIANFENG (Autor:in) / ZHANG GUANGHUA (Autor:in) / LI PING (Autor:in) / ZHANG LIYAN (Autor:in)
07.09.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
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