CN104032839A - Connecting structure of frictional type damper assembling type frame joint and constructing method thereof - Google Patents
Connecting structure of frictional type damper assembling type frame joint and constructing method thereof Download PDFInfo
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- 239000011150 reinforced concrete Substances 0.000 claims abstract description 85
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 43
- 239000010959 steel Substances 0.000 claims abstract description 43
- 238000010276 construction Methods 0.000 claims abstract description 12
- 239000000463 material Substances 0.000 claims abstract description 11
- 239000004567 concrete Substances 0.000 claims description 7
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 239000011440 grout Substances 0.000 claims description 2
- 230000021715 photosynthesis, light harvesting Effects 0.000 abstract description 5
- 238000005265 energy consumption Methods 0.000 description 7
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Abstract
一种摩擦型阻尼器装配式框架节点的连接结构，该结构的钢绞线预埋管内设有预应力钢绞线，预制钢筋混凝土梁与预制钢筋混凝土柱通过预应力钢绞线连接，梁柱接缝处用高强灌浆料连接，形成梁柱连接节点，摩擦型阻尼器安装在梁柱连接节点处，形成整体预应力附加摩擦型阻尼器装配式框架节点的连接结构。施工方法包括将预制钢筋混凝土梁与预制钢筋混凝土柱上的阻尼器预埋管对正；将钢绞线穿入到预制钢筋混凝土梁的钢绞线预埋管中；用高强灌浆料灌缝，形成梁柱整体节点；在阻尼器预埋管中穿入摩擦型阻尼器固定螺杆安装摩擦型阻尼器。本结构能够有效地提高装配式框架结构在地震作用下的耗能能力，保证柱、梁的有效连接，有效的消耗地震能量，保护建筑结构。
A connection structure of friction damper assembled frame joints, in which pre-stressed steel strands are installed in the steel strand pre-embedded pipes, prefabricated reinforced concrete beams and prefabricated reinforced concrete columns are connected by prestressed steel strands, beams and columns The joints are connected with high-strength grouting materials to form beam-column connection nodes, and friction dampers are installed at the beam-column connection nodes to form a connection structure of integrally prestressed additional friction damper assembled frame nodes. The construction method includes aligning the prefabricated reinforced concrete beam with the damper embedded pipe on the prefabricated reinforced concrete column; passing the steel strand into the steel strand embedded pipe of the prefabricated reinforced concrete beam; filling the joint with high-strength grouting material, Form the overall node of the beam and column; penetrate the friction damper fixing screw in the damper pre-embedded pipe to install the friction damper. The structure can effectively improve the energy dissipation capacity of the assembled frame structure under earthquake action, ensure the effective connection of columns and beams, effectively consume earthquake energy, and protect the building structure.
Description
技术领域 technical field
本发明涉及一种摩擦型阻尼器装配式框架节点的连接结构及其施工方法，是一种新型预制框架结构节点连接与耗能技术，属于土木工程中装配式混凝土框架结构抗震技术领域。 The invention relates to a connection structure of a friction damper assembled frame node and a construction method thereof, is a novel prefabricated frame structure node connection and energy consumption technology, and belongs to the field of anti-seismic technology of an assembled concrete frame structure in civil engineering.
背景技术 Background technique
我国是一个地震多发国家，大部分地区处于抗震设防区，在实际工程施工中，装配式框架结构可以降低工程造价，加快施工速度，减少资源消耗，降低环境污染。是我国建筑业发展的方向之一。与现浇钢筋混凝土框架结构相比，装配式钢筋混凝土框架结构节点耗能能力略显不足，并且装配式框架结构节点的抗震耗能能力较低一直是阻碍建筑业发展的因素。为此申请人发明了申请号为：2014201172513 “装配式框架架构节点摩擦型阻尼器”，经检索尚未发现有用节点摩擦型阻尼器作为装配式框架结构节点，来提高抗震效果的报道。 my country is an earthquake-prone country, and most areas are in seismic fortification areas. In actual engineering construction, prefabricated frame structures can reduce engineering costs, speed up construction, reduce resource consumption, and reduce environmental pollution. It is one of the development directions of my country's construction industry. Compared with cast-in-place reinforced concrete frame structures, the energy dissipation capacity of prefabricated reinforced concrete frame structure nodes is slightly insufficient, and the low seismic energy dissipation capacity of prefabricated frame structure nodes has always been a factor hindering the development of the construction industry. For this reason, the applicant invented the application number: 2014201172513 "Nodal Friction Damper of Fabricated Frame Structure". After searching, no reports have been found on the useful node friction damper as the node of the fabricated frame structure to improve the anti-seismic effect.
发明内容 Contents of the invention
本发明的目的在于针对现有技术装配式框架结构节点的抗震耗能能力较低的缺陷，由于地震发生时建筑结构的节点强度和耗能能力是抗震性能的重要指标，为了降低地震对结构的破坏程度，提供一种摩擦型阻尼器装配式框架节点的连接结构及其施工方法。 The purpose of the present invention is to address the defects of low seismic energy consumption capacity of the assembled frame structure nodes in the prior art. Since the node strength and energy consumption capacity of the building structure are important indicators of the seismic performance when an earthquake occurs, in order to reduce the impact of the earthquake on the structure According to the degree of damage, a connection structure and construction method of friction damper assembled frame joints are provided.
实现上述发明目的采用以下技术方案： Realize above-mentioned invention object and adopt following technical scheme:
一种摩擦型阻尼器装配式框架节点的连接结构，该结构包括预制钢筋混凝土柱、预制钢筋混凝土梁和摩擦型阻尼器，预制钢筋混凝土柱和预制钢筋混凝土梁内分别设有多条钢绞线预埋管和多条阻尼器安装预埋管，其特征在于，所述的钢绞线预埋管内设有预应力钢绞线，预制钢筋混凝土梁与预制钢筋混凝土柱通过预应力钢绞线连接，并在梁柱接缝处用高强灌浆料灌浆连接，形成梁柱连接节点，摩擦型阻尼器安装在梁柱连接节点处，形成整体的预应力附加摩擦型阻尼器装配式框架节点的连接结构。 A connection structure of a friction damper assembled frame node, the structure includes a prefabricated reinforced concrete column, a prefabricated reinforced concrete beam and a friction damper, and a plurality of steel strands are respectively arranged in the prefabricated reinforced concrete column and the prefabricated reinforced concrete beam Pre-embedded pipes and multiple dampers are installed with pre-embedded pipes, which are characterized in that pre-stressed steel strands are arranged in the steel strand pre-embedded pipes, and prefabricated reinforced concrete beams and prefabricated reinforced concrete columns are connected by prestressed steel strands , and grout the beam-column joints with high-strength grouting material to form beam-column joints, and friction dampers are installed at the beam-column joints to form an integral connection structure of prestressed additional friction damper assembled frame joints .
进一步，预制钢筋混凝土柱内的多条阻尼器安装预埋管相平行安装在预制钢筋混凝土梁柱、预制钢筋混凝土梁内。 Further, a plurality of damper installation pre-embedded pipes in the prefabricated reinforced concrete column are installed in parallel in the prefabricated reinforced concrete beam column and the prefabricated reinforced concrete beam.
进一步，多条钢绞线预埋管相互平行安装在预制钢筋混凝土梁柱、预制钢筋混凝土梁内。 Further, a plurality of pre-embedded steel strand pipes are installed parallel to each other in the prefabricated reinforced concrete beam column and the prefabricated reinforced concrete beam.
进一步，摩擦型阻尼器固定螺杆穿入阻尼器预埋管中，用螺母固定。 Further, the fixed screw rod of the friction damper penetrates into the pre-embedded pipe of the damper and is fixed with a nut.
一种摩擦型阻尼器装配式框架节点的连接结构的施工方法，包括下述步骤： A construction method of a connection structure of a friction damper assembled frame node, comprising the following steps:
a.吊装预制钢筋混凝土梁至设计位置，将预制钢筋混凝土梁与预制钢筋混凝土柱上的阻尼器预埋管对正； a. Lift the prefabricated reinforced concrete beam to the design position, and align the prefabricated reinforced concrete beam with the damper embedded pipe on the prefabricated reinforced concrete column;
b.将无粘结预应力钢绞线穿入到预制钢筋混凝土梁的钢绞线预埋管中； b. Insert unbonded prestressed steel strands into the pre-embedded steel strands of prefabricated reinforced concrete beams;
c.预制钢筋混凝土柱与预制钢筋混凝土梁的接缝处用高强灌浆料灌缝，形成梁柱整体节点； c. The joints between prefabricated reinforced concrete columns and prefabricated reinforced concrete beams are filled with high-strength grouting materials to form integral beam-column nodes;
d.待灌浆料达到设计强度后张拉预应力钢绞线对预制钢筋混凝土柱与预制钢筋混凝土梁施加设计的预应力； d. After the grouting material reaches the design strength, tension the prestressed steel strand to apply the designed prestress to the prefabricated reinforced concrete columns and prefabricated reinforced concrete beams;
e.在阻尼器预埋管中穿入摩擦型阻尼器固定螺杆，安装摩擦型阻尼器并拧紧固定螺母； e. Insert the friction damper fixing screw into the damper embedded pipe, install the friction damper and tighten the fixing nut;
f.拧紧摩擦型阻尼器的摩擦片紧压螺母，给摩擦片施加压力。 f. Tighten the friction plate compression nut of the friction damper to apply pressure to the friction plate.
采用上述技术方案，与现有技术相比，由于本发明启用摩擦型阻尼器作为装配式框架结构节点连接结构，摩擦型阻尼器在外力作用下可以绕绕转动轴转动，同时摩擦片合理利用钢板的滑动摩擦摩擦耗能，使结构在保证整体性的基础上实现有效耗能的效果，可以有效提高装配式框架结构节点的耗能能力。本发明能够有效地提高装配式框架结构在地震作用下耗能能力，在地震发生时，预应力钢绞线可以保证预制钢筋混凝土柱、预制钢筋混凝土梁的有效连接，有效的消耗地震能量，保护建筑结构。 By adopting the above technical solution, compared with the prior art, since the friction damper is used as the joint connection structure of the assembled frame structure in the present invention, the friction damper can rotate around the rotation axis under the action of external force, and the friction plate can rationally use the steel plate The frictional energy consumption of sliding friction makes the structure realize the effect of effective energy consumption on the basis of ensuring the integrity, and can effectively improve the energy dissipation capacity of the assembled frame structure nodes. The invention can effectively improve the energy consumption capacity of the assembled frame structure under the action of an earthquake. When an earthquake occurs, the prestressed steel strand can ensure the effective connection of prefabricated reinforced concrete columns and prefabricated reinforced concrete beams, effectively consume earthquake energy, and protect building structure.
本发明可用于新建的工程结构，也可用于建筑物的加固与改良。具有设计概念明确、施工简单、安全可靠、节省造价、经久耐用等特点，会给我国的经济和社会发展将带来巨大的效益，具有广阔的应用前景。 The invention can be used for newly-built engineering structures, and can also be used for reinforcement and improvement of buildings. It has the characteristics of clear design concept, simple construction, safety and reliability, cost saving, and durability. It will bring huge benefits to my country's economic and social development, and has broad application prospects.
附图说明 Description of drawings
图1是本发明的整体连接结构示意图。 Fig. 1 is a schematic diagram of the overall connection structure of the present invention.
图2是本发明摩擦阻尼器的正立面图。 Fig. 2 is a front view of the friction damper of the present invention.
图3是摩擦阻尼器的侧立面图。 Figure 3 is a side elevational view of the friction damper.
图4是本发明预制钢筋混凝土柱正立面图。 Fig. 4 is the elevational view of the prefabricated reinforced concrete column of the present invention.
图5是预制钢筋混凝土柱的截面图。 Fig. 5 is a cross-sectional view of a prefabricated reinforced concrete column.
图6是本发明预制钢筋混凝土梁顶面图。 Fig. 6 is a top view of the prefabricated reinforced concrete beam of the present invention.
图7是本发明预制钢筋混凝土梁端面图。 Fig. 7 is an end view of the prefabricated reinforced concrete beam of the present invention.
图8是本发明预制钢筋混凝土梁结构示意图。 Fig. 8 is a schematic diagram of the prefabricated reinforced concrete beam structure of the present invention.
图中，阻尼器安装预埋管1，预制钢筋混凝土柱2，摩擦阻尼器3，预制钢筋混凝土梁4，钢绞线预埋管5，安装螺栓孔6，中摩擦片7，滑片紧压螺栓8，垫片9，边摩擦片10，紧压螺栓孔11，螺栓滑道12，转动轴13，箍筋14，纵筋15，梁箍筋16，梁纵筋17。 In the figure, the damper is installed with pre-embedded pipe 1, prefabricated reinforced concrete column 2, friction damper 3, prefabricated reinforced concrete beam 4, steel strand pre-embedded pipe 5, installation bolt hole 6, middle friction plate 7, sliding plate tightly pressed Bolt 8, gasket 9, edge friction plate 10, pressing bolt hole 11, bolt slideway 12, rotating shaft 13, stirrup 14, longitudinal reinforcement 15, beam stirrup 16, beam longitudinal reinforcement 17.
具体实施方式 Detailed ways
下面面结合附图对本发明做进一步的描述。 The present invention will be further described below in conjunction with the accompanying drawings.
本发明公开了一种摩擦型阻尼器装配式框架节点的连接结构及其施工方法。其发明思想是：在预制钢筋混凝土柱2与预制钢筋混凝土梁4节点处安装摩擦型阻尼器3，形成整体的预应力附加摩擦型阻尼器装配式框架节点的连接结构。这种设计，保证装配式混凝土框架结构在地震发生时，实现节点的有效连接和有效耗能。 The invention discloses a connection structure of an assembled frame node of a friction damper and a construction method thereof. The idea of the invention is to install friction dampers 3 at joints between prefabricated reinforced concrete columns 2 and prefabricated reinforced concrete beams 4 to form an integral connection structure of prestressed additional friction damper assembled frame joints. This design ensures that the prefabricated concrete frame structure realizes the effective connection of nodes and effective energy consumption when an earthquake occurs.
具体结构参见附图1-8，这种预应力附加摩擦型阻尼器装配式框架结构节点连接结构由预制钢筋混凝土柱2、预制钢筋混凝土梁4和摩擦型阻尼器3三大部分组成。三大部分的整体连接结构见图1，图4、图5，预制钢筋混凝土柱2由柱纵筋15，柱箍筋14，钢绞线预埋管5，阻尼器预埋管1和混凝土构成。预制钢筋混凝土梁4由梁纵筋17，梁箍筋16，钢绞线预埋管5，阻尼器预埋管1和混凝土构成。预制钢筋混凝土柱2内设有多条相互平行安装的阻尼器安装预埋管1和多条相互平行设置钢绞线预埋管5。预制钢筋混凝土梁4内设有多条相互平行设置钢绞线预埋管5和多条相互平行设置的阻尼器安装预埋管1。钢绞线预埋管5内穿有预应力钢绞线，预制钢筋混凝土梁4与预制钢筋混凝土柱2通过预应力钢绞线连接。摩擦型阻尼器3与预制钢筋混凝土柱2螺栓连接，形成整体的预应力附加摩擦型阻尼器节点连接结构。 Refer to accompanying drawings 1-8 for the specific structure. This prestressed additional friction damper assembled frame structure node connection structure consists of three parts: prefabricated reinforced concrete column 2, prefabricated reinforced concrete beam 4 and friction damper 3. The overall connection structure of the three parts is shown in Figure 1, Figure 4, and Figure 5. The prefabricated reinforced concrete column 2 is composed of column longitudinal reinforcement 15, column stirrup 14, steel strand pre-embedded pipe 5, damper pre-embedded pipe 1 and concrete. . The prefabricated reinforced concrete beam 4 is composed of beam longitudinal bars 17, beam stirrups 16, steel strand pre-embedded pipes 5, damper pre-embedded pipes 1 and concrete. The prefabricated reinforced concrete column 2 is provided with a plurality of damper installation embedded pipes 1 installed parallel to each other and a plurality of steel strand embedded pipes 5 arranged in parallel with each other. The prefabricated reinforced concrete beam 4 is provided with a plurality of steel strand pre-embedded pipes 5 arranged parallel to each other and a plurality of damper installation pre-embedded pipes 1 arranged parallel to each other. Prestressed steel strands are passed through the steel strand pre-embedded pipe 5, and the prefabricated reinforced concrete beam 4 and the prefabricated reinforced concrete column 2 are connected through the prestressed steel strand. The friction damper 3 is bolted to the prefabricated reinforced concrete column 2 to form an integral prestressed additional friction damper node connection structure.
参见附图2，图3，摩擦型阻尼器3由双摩擦片片、中摩擦片片7、滑片紧压螺栓8和转动轴13四大部分组成。双摩擦片板与中摩擦片7板用滑片紧压螺栓8连接，双摩擦片板安装在转动轴13上，其中双摩擦片包括：安装螺孔6、边摩擦片10、螺栓滑道12、转动轴13；中摩擦片包括：安装螺栓孔6、转动轴13、紧压螺栓孔11、中摩擦片7。 Referring to accompanying drawing 2, Fig. 3, friction type damper 3 is made up of double friction sheet, middle friction sheet 7, sliding plate compression bolt 8 and rotating shaft 13 four parts. The double friction plate and the middle friction plate 7 are connected by sliding plate compression bolts 8, and the double friction plate is installed on the rotating shaft 13, wherein the double friction plate includes: mounting screw holes 6, side friction plates 10, and bolt slideways 12 1. The rotating shaft 13; the middle friction plate includes: the mounting bolt hole 6, the rotating shaft 13, the pressing bolt hole 11, and the middle friction plate 7.
在阻尼器预埋管1中穿入摩擦型阻尼器3的固定螺杆，用螺栓拧紧将摩擦型阻尼器3与预制钢筋混凝土柱2连接。边摩擦片10位于中摩擦片7的外部，边摩擦片10、中摩擦片7套在转动轴13上，中摩擦片板上设置有多个安装螺栓孔6，螺栓滑道12设置在边摩擦片10上，螺栓滑道12上有紧压螺栓孔11，滑片紧压螺栓8将边摩擦片10与中摩擦片7固定，在滑片紧压螺栓8与边摩擦片10之间垫有垫片9。 The fixed screw rod of the friction damper 3 is penetrated into the damper pre-embedded pipe 1, and the friction damper 3 is connected with the prefabricated reinforced concrete column 2 by tightening with bolts. The side friction plate 10 is located outside the middle friction plate 7, the side friction plate 10 and the middle friction plate 7 are sleeved on the rotating shaft 13, a plurality of mounting bolt holes 6 are arranged on the middle friction plate, and the bolt slideway 12 is arranged on the side friction plate. On the sheet 10, there is a pressing bolt hole 11 on the bolt slideway 12, the sliding sheet pressing bolt 8 fixes the side friction sheet 10 and the middle friction sheet 7, and there is a pad between the sliding sheet pressing bolt 8 and the side friction sheet 10 Gasket 9.
参见附图4、附图5，预制钢筋混凝土柱2由柱纵筋15，柱箍筋14，钢绞线预埋管5，阻尼器预埋管1和混凝土构成。预制钢筋混凝土梁4由梁纵筋17，梁箍筋16，钢绞线预埋管5，阻尼器预埋管1和混凝土构成。 Referring to accompanying drawing 4, accompanying drawing 5, prefabricated reinforced concrete column 2 is made of column longitudinal bar 15, column stirrup 14, steel strand pre-embedded pipe 5, damper pre-embedded pipe 1 and concrete. The prefabricated reinforced concrete beam 4 is composed of beam longitudinal bars 17, beam stirrups 16, steel strand pre-embedded pipes 5, damper pre-embedded pipes 1 and concrete.
阻尼器预埋管1和钢绞线预埋管5均采用PVC材料或波纹钢管制作，直径为16~30 mm。钢绞线为钢质材料制作，直径为15.2mm。 Both the damper pre-embedded pipe 1 and the steel strand pre-embedded pipe 5 are made of PVC material or corrugated steel pipe, with a diameter of 16-30 mm. The steel strand is made of steel material with a diameter of 15.2mm.
摩擦型阻尼器选用专利申请号：2014201172513 的产品。 The friction damper is the product with patent application number: 2014201172513.
本发明摩擦型阻尼器装配式框架节点的连接结构的施工方法按照下列步骤进行： The construction method of the connection structure of the friction damper assembled frame node of the present invention is carried out according to the following steps:
1.准备预制钢筋混凝土梁4、预制钢筋混凝土柱2和摩擦型阻尼器3，三种产品均由工厂预制。 1. Prepare prefabricated reinforced concrete beam 4, prefabricated reinforced concrete column 2 and friction damper 3, all three products are prefabricated by the factory.
2.吊装预制钢筋混凝土柱2到设计位置，注意预制钢筋混凝土柱2上预留钢绞线预埋管5及阻尼器预埋安装管1的方向正确无误。 2. Hoist the prefabricated reinforced concrete column 2 to the design position, and pay attention to the correct direction of the reserved steel strand pre-embedded pipe 5 and damper pre-embedded installation pipe 1 on the prefabricated reinforced concrete column 2.
3.吊装预制钢筋混凝土梁4至设计位置，预制钢筋混凝土柱2与预制钢筋混凝土梁4的钢绞线预埋管5要对正。 3. Hoist the prefabricated reinforced concrete beam 4 to the design position, and align the prefabricated reinforced concrete column 2 with the steel strand pre-embedded pipe 5 of the prefabricated reinforced concrete beam 4 .
4.将无粘结预应力钢绞线传入到预制钢筋混凝土柱2和制钢筋混凝土梁4内的钢绞线预埋管5中。 4. Pass the unbonded prestressed steel strands into the steel strand pre-embedded pipes 5 in the prefabricated reinforced concrete columns 2 and the reinforced concrete beams 4 .
5. 预制钢筋混凝土柱2和预制钢筋混凝土梁4的接缝处用高强灌浆料灌缝，形成预制钢筋混凝土柱2和制钢筋混凝土梁4的整体节点。 5. The joints between the prefabricated reinforced concrete column 2 and the prefabricated reinforced concrete beam 4 are filled with high-strength grouting material to form the integral joint of the prefabricated reinforced concrete column 2 and the prefabricated reinforced concrete beam 4 .
6.待灌浆料达到设计强度后张拉预应力钢绞线对预制钢筋混凝土柱2和制钢筋混凝土梁4施加设计的预应力。 6. After the grouting material reaches the design strength, stretch the prestressed steel strand to apply the designed prestress to the prefabricated reinforced concrete column 2 and the manufactured reinforced concrete beam 4 .
7.在预制钢筋混凝土柱2和制钢筋混凝土梁4内的阻尼器预埋管中1穿入阻尼器固定螺杆，安装摩擦型阻尼器3并拧紧固定螺母。 7. Insert the damper fixing screw into the damper pre-embedded pipe 1 in the prefabricated reinforced concrete column 2 and the manufactured reinforced concrete beam 4, install the friction damper 3 and tighten the fixing nut.
8.拧紧摩擦片紧压螺栓8，给摩擦片施加设计的紧压力。 8. Tighten the pressure bolt 8 of the friction disc to apply the designed tight pressure to the friction disc.
摩擦型阻尼器3在外力作用下可以绕转动轴13转动，在地震发生时，该阻尼器的两个摩擦片板绕转轴转动，同时单摩擦片和双摩擦片之间相对滑动，依次运动有效的消耗地震能量，有效提高装配式框架结构节点的耗能能力，保护建筑结构。当外力消失后松开摩擦片紧压螺栓，阻尼器可以恢复原状。 The friction damper 3 can rotate around the rotation axis 13 under the action of external force. When an earthquake occurs, the two friction plates of the damper rotate around the rotation axis. At the same time, the single friction plate and the double friction plate slide relative to each other. Consume the seismic energy, effectively improve the energy dissipation capacity of the assembled frame structure nodes, and protect the building structure. When the external force disappears, loosen the friction plate and press the bolt, and the damper can return to its original state.
上述实施例仅表达了本发明的一种实施方式，但并不能因此而理解为对本发明范围的限制。应当指出，对于本领域的普通技术人员来说，在不脱离本发明构思的前提下，还可以做出若干变形和改进，这些都属于本发明的保护范围。 The above-mentioned embodiment only expresses one embodiment of the present invention, but should not be construed as limiting the scope of the present invention. It should be pointed out that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention.
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