Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for constructing post-tensioned prestressed structure through tensioning grooves
The invention provides a method for constructing a post-tensioned prestressed structure through a tensioning groove, and belongs to the technical field of tensioning construction. The method sequentially comprises the following steps that 1, a beam bottom film is installed, column ribs are bound, and pre-stress hole channels in the horizontal direction are reserved; step 2, welding a reinforcing steel bar bracket according to a designed vector height, and laying and fixing a prestressed duct; 3, the corrugated pipes are bound and fixed through binding wires, and prestressed tendons penetrate into the hole channels; 4, formworks on the two sides of the beam are installed, reinforcing steel bars are bound, a tensioning groove formwork is erected, and the prestressed structure and the tensioning groove structure are poured together; 5, the prestressed beam side mold and the exceeding tensioning groove inner mold are dismantled; 6, a center hole jack driven by a high-pressure oil pump is adopted in the tensioning groove to tension the prestressed tendons; 7, redundant steel strands are cut off, and grouting and anchor sealing are conducted; 8, the tensioning groove is blocked; and 9, after the grouting material reaches the strength required by design, the bottom film and the support are removed.
本发明提供了一种通过张拉槽施工后张法预应力结构的方法，属于张法施工技术领域。依次进行如下操作：步骤1，安装梁底膜、绑扎柱筋预留出水平方向预应力孔道；步骤2，按照设计矢高焊接钢筋托架，对预应力孔道的布设和固定；步骤3，采用扎丝进行绑扎固定波纹管并将预应力筋穿入孔道；步骤4，安装梁两侧模板、绑扎钢筋、支设张拉槽模板并且将预应力结构和张拉槽结构一同浇筑；步骤5，拆除预应力梁侧模和超出张拉槽内模；6，在张拉槽内采用高压油泵驱动的穿心式千斤顶对预应力筋进行张拉；步骤7，切除多余钢绞线并进行灌浆、封锚；步骤8，对张拉槽进行封堵；步骤9，灌浆料达到设计要求强度后，拆除底膜及支撑。
Method for constructing post-tensioned prestressed structure through tensioning grooves
The invention provides a method for constructing a post-tensioned prestressed structure through a tensioning groove, and belongs to the technical field of tensioning construction. The method sequentially comprises the following steps that 1, a beam bottom film is installed, column ribs are bound, and pre-stress hole channels in the horizontal direction are reserved; step 2, welding a reinforcing steel bar bracket according to a designed vector height, and laying and fixing a prestressed duct; 3, the corrugated pipes are bound and fixed through binding wires, and prestressed tendons penetrate into the hole channels; 4, formworks on the two sides of the beam are installed, reinforcing steel bars are bound, a tensioning groove formwork is erected, and the prestressed structure and the tensioning groove structure are poured together; 5, the prestressed beam side mold and the exceeding tensioning groove inner mold are dismantled; 6, a center hole jack driven by a high-pressure oil pump is adopted in the tensioning groove to tension the prestressed tendons; 7, redundant steel strands are cut off, and grouting and anchor sealing are conducted; 8, the tensioning groove is blocked; and 9, after the grouting material reaches the strength required by design, the bottom film and the support are removed.
本发明提供了一种通过张拉槽施工后张法预应力结构的方法，属于张法施工技术领域。依次进行如下操作：步骤1，安装梁底膜、绑扎柱筋预留出水平方向预应力孔道；步骤2，按照设计矢高焊接钢筋托架，对预应力孔道的布设和固定；步骤3，采用扎丝进行绑扎固定波纹管并将预应力筋穿入孔道；步骤4，安装梁两侧模板、绑扎钢筋、支设张拉槽模板并且将预应力结构和张拉槽结构一同浇筑；步骤5，拆除预应力梁侧模和超出张拉槽内模；6，在张拉槽内采用高压油泵驱动的穿心式千斤顶对预应力筋进行张拉；步骤7，切除多余钢绞线并进行灌浆、封锚；步骤8，对张拉槽进行封堵；步骤9，灌浆料达到设计要求强度后，拆除底膜及支撑。
Method for constructing post-tensioned prestressed structure through tensioning grooves
一种通过张拉槽施工后张法预应力结构的方法
ZHENG CHENGLONG (Autor:in) / SHI PENG (Autor:in) / TANG WEIYAO (Autor:in) / HU ZEKUN (Autor:in) / FAN YUANYE (Autor:in) / JIA XIAOLIN (Autor:in) / LI JIA (Autor:in) / ZHANG BIN (Autor:in) / YANG JIYU (Autor:in) / ZHOU XIANG (Autor:in)
25.07.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
PRESTRESSED-POST-TENSIONED CONCRETE - Base Isolation and Post-Tensioning
| Online Contents | 2005
PRECAST-PRESTRESSED AND POST-TENSIONED CONCRETE - Post-Tensioning a Structure in Spain
| Online Contents | 2003
Post-tensioned prestressed Concrete
| TIBKAT | 1981
Post-Tensioned Prestressed Masonry Columns
| ASCE | 2001