A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Prestressed concrete combined box girder reinforcing structure and construction method
The invention relates to a prestressed concrete combined box girder reinforcing structure and a construction method. The construction method comprises the following steps: step 1, surveying and setting out; 2, newly-added anchoring toothed plates and newly-added diaphragms are constructed; step 3, forming holes in the original diaphragm; 4, a bogie and a limiting shock absorber are constructed; step 5, perforating the external prestressed tendons; and step 6, tensioning and anchoring the external prestressing tendons. The bogie has the beneficial effects that according to the bogie provided by the invention, the eccentric ring for restraining the guide sleeve can rotate relative to the angle steel, the axis position of the guide sleeve is finely adjusted, and the axis positioning precision of an external prestressed tendon is improved; according to the limiting shock absorber, the external prestressed tendon is sleeved with the limiting ring, the limiting spring is arranged between the limiting ring and the angle steel, and a good shock absorption and isolation effect can be provided; the newly-added transverse partition beams are arranged between the concrete box girders, the stability of the concrete box girders can be remarkably improved, and the reinforcing effect is improved.
本发明涉及预应力混凝土组合箱梁加固结构及施工方法，包括步骤：步骤1.测量放样；步骤2.新增锚固齿板、新增横隔梁施工；步骤3.原横隔梁开孔；步骤4.转向架、限位减震器施工；步骤5.体外预应力筋穿孔；步骤6.体外预应力筋张拉锚固。本发明的有益效果是：本发明提出的转向架，约束导向套筒的偏心环可相对角钢转动，对导向套筒的轴线位置进行微调，提高了体外预应力筋的轴线定位精度；本发明提出的限位减震器，由限位环套在体外预应力筋上，限位环与角钢之间设置限位弹簧，可提供较好的减震隔离效果；本发明的混凝土箱梁之间设有新增横隔梁，可显著提升混凝土箱梁的稳定性，提升加固效果。
Prestressed concrete combined box girder reinforcing structure and construction method
The invention relates to a prestressed concrete combined box girder reinforcing structure and a construction method. The construction method comprises the following steps: step 1, surveying and setting out; 2, newly-added anchoring toothed plates and newly-added diaphragms are constructed; step 3, forming holes in the original diaphragm; 4, a bogie and a limiting shock absorber are constructed; step 5, perforating the external prestressed tendons; and step 6, tensioning and anchoring the external prestressing tendons. The bogie has the beneficial effects that according to the bogie provided by the invention, the eccentric ring for restraining the guide sleeve can rotate relative to the angle steel, the axis position of the guide sleeve is finely adjusted, and the axis positioning precision of an external prestressed tendon is improved; according to the limiting shock absorber, the external prestressed tendon is sleeved with the limiting ring, the limiting spring is arranged between the limiting ring and the angle steel, and a good shock absorption and isolation effect can be provided; the newly-added transverse partition beams are arranged between the concrete box girders, the stability of the concrete box girders can be remarkably improved, and the reinforcing effect is improved.
本发明涉及预应力混凝土组合箱梁加固结构及施工方法，包括步骤：步骤1.测量放样；步骤2.新增锚固齿板、新增横隔梁施工；步骤3.原横隔梁开孔；步骤4.转向架、限位减震器施工；步骤5.体外预应力筋穿孔；步骤6.体外预应力筋张拉锚固。本发明的有益效果是：本发明提出的转向架，约束导向套筒的偏心环可相对角钢转动，对导向套筒的轴线位置进行微调，提高了体外预应力筋的轴线定位精度；本发明提出的限位减震器，由限位环套在体外预应力筋上，限位环与角钢之间设置限位弹簧，可提供较好的减震隔离效果；本发明的混凝土箱梁之间设有新增横隔梁，可显著提升混凝土箱梁的稳定性，提升加固效果。
Prestressed concrete combined box girder reinforcing structure and construction method
预应力混凝土组合箱梁加固结构及施工方法
HE WEI (author) / ZENG FANRAN (author)
2022-04-08
Patent
Electronic Resource
Chinese
Transverse active reinforcing structure of prestressed concrete box girder and construction method
| European Patent Office | 2022
Transverse active reinforcing structure of prestressed concrete box girder and construction method
| European Patent Office | 2024
Adjustable prestressed concrete box girder end formwork and reinforcing construction method
| European Patent Office | 2023
PRESTRESSED CONCRETE GIRDER HAVING REINFORCING MEMBER AND THE CONSTRUCTION METHOD THEREOF
| European Patent Office | 2017
PRESTRESSED CONCRETE GIRDER HAVING REINFORCING MEMBER AND THE CONSTRUCTION METHOD THEREOF
| European Patent Office | 2017