CN107724528A - One kind is used for the prefabricated overall beam column construction of " dry type " assembling concrete frame structure - Google Patents
One kind is used for the prefabricated overall beam column construction of " dry type " assembling concrete frame structure Download PDFInfo
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- 239000004567 concrete Substances 0.000 title claims abstract description 16
- 238000010276 construction Methods 0.000 title abstract description 10
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 53
- 239000010959 steel Substances 0.000 claims abstract description 53
- 230000002787 reinforcement Effects 0.000 claims description 6
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 5
- 238000003466 welding Methods 0.000 claims description 5
- 238000013461 design Methods 0.000 claims description 4
- 235000010627 Phaseolus vulgaris Nutrition 0.000 claims 3
- 244000046052 Phaseolus vulgaris Species 0.000 claims 3
- 238000005266 casting Methods 0.000 claims 1
- 238000012423 maintenance Methods 0.000 claims 1
- 239000011148 porous material Substances 0.000 claims 1
- 238000007493 shaping process Methods 0.000 claims 1
- 238000000034 method Methods 0.000 description 10
- 238000005516 engineering process Methods 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000011178 precast concrete Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/20—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of concrete, e.g. reinforced concrete, or other stonelike material
- E04B1/21—Connections specially adapted therefor
- E04B1/215—Connections specially adapted therefor comprising metallic plates or parts
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Abstract
本发明提供一种用于“全干式”装配混凝土框架结构的预制整体梁柱结构，属于结构工程领域，包括预制整体梁柱节点、预制梁和预制柱。预制整体梁柱节点为十字形结构，整体浇筑养护成，十字形结构中心部分为核心区，横向部分为梁端部件、纵向部分为柱端部件。梁端部件、柱端部件在远离核心区一端均设置带孔钢板预埋件；预制梁和预制柱浇筑养护成型，预制梁、预制柱的端部均设置带孔钢板预埋件；带孔钢板预埋件之间通过摩擦螺栓连接，带孔钢板预埋件与预制整体梁柱节点或预制梁、预制柱内的增强钢筋连接。本发明提供的预制整体梁柱节点及其连接体系具有更好的力学性能，现场操作快捷，方便施工。
The invention provides a prefabricated integral beam-column structure for a "fully dry" assembled concrete frame structure, which belongs to the field of structural engineering and includes prefabricated integral beam-column nodes, prefabricated beams and prefabricated columns. The prefabricated overall beam-column joint is a cross-shaped structure, which is formed by integral pouring and curing. The central part of the cross-shaped structure is the core area, the horizontal part is the beam end part, and the vertical part is the column end part. Beam end parts and column end parts are equipped with steel plate embedded parts with holes at the end far away from the core area; The embedded parts are connected by friction bolts, and the embedded parts of the steel plate with holes are connected with the prefabricated integral beam-column nodes or the reinforced steel bars in the prefabricated beams and prefabricated columns. The prefabricated integral beam-column joint and its connection system provided by the invention have better mechanical properties, quick on-site operation and convenient construction.
Description
技术领域technical field
本发明属于结构工程领域，涉及一种预制整体梁柱节点及其连接体系，该节点用于“全干式”装配混凝土框架结构。The invention belongs to the field of structural engineering, and relates to a prefabricated integral beam-column node and its connecting system, which is used in a "fully dry" assembled concrete frame structure.
背景技术Background technique
当前，装配式混凝土结构主要分为装配整体式以及预制装配式两类。装配整体式是指由预制混凝土构件或部件通过钢筋、连接件或施加预应力加以连接并现场浇筑混凝土而形成整体的结构。其特点是，在装配预制构件时需要采用部分现浇的方法，以加强关键构件或部位的整体性，例如梁端或柱端。这种方法也被称为“半干式”装配，该技术可以保证关键构件的力学特性等同现浇构件，具有较好的抗震性能。缺点是存在湿作业，施工流程相对复杂，工期较长。而预制装配式是指由预制混凝土构件或部件通过预埋连接件或施加预应力等方式装配而成的结构，其并不需要现场浇筑混凝土，因此也被称为“全干式”装配技术。相对“半干式”技术而言，这种方法现场施工更加简便，工期也短。但由于仅依靠连接件或预应力技术连接，关键构件的抗震性能较差。例如，当采用传统的“全干式”装配技术时，预制混凝土梁直接通过连接件或施加预应力安装在预制柱的两侧。此时，重力荷载或地震作用产生的最大弯矩位于连接部位，而该连接部位缺少贯穿节点的连续受力钢筋，无法充分抵抗不利的弯矩作用，容易发生脆性破坏，对于结构安全非常不利。在此背景下，急需一种可以避免此种破坏形式，具有良好力学性能并方便施工的“全干式”预制装配节点形式，并针对其特点提出合理的连接方式。At present, prefabricated concrete structures are mainly divided into two types: prefabricated and prefabricated. Assembled integral type refers to a structure formed by prefabricated concrete components or components connected by steel bars, connectors or prestressed and poured concrete on site. Its characteristic is that when assembling prefabricated components, it is necessary to adopt a partial cast-in-place method to strengthen the integrity of key components or parts, such as beam ends or column ends. This method is also called "semi-dry" assembly. This technology can ensure that the mechanical properties of key components are equivalent to those of cast-in-place components, and has better seismic performance. The disadvantage is that there is wet work, the construction process is relatively complicated, and the construction period is long. The prefabricated assembly refers to the structure assembled by prefabricated concrete components or parts through pre-embedded connectors or prestressing. It does not require on-site pouring of concrete, so it is also called "fully dry" assembly technology. Compared with the "semi-dry" technology, this method is easier to construct on site and has a shorter construction period. However, due to only relying on connectors or prestressing technology to connect, the seismic performance of key components is poor. For example, when using the traditional "all-dry" assembly technique, precast concrete beams are installed directly on both sides of the precast columns through connectors or by applying prestress. At this time, the maximum bending moment generated by gravity load or earthquake action is located at the connection part, and the connection part lacks continuous stressed steel bars passing through the joint, so it cannot fully resist the unfavorable bending moment action, and is prone to brittle failure, which is very unfavorable to structural safety. In this context, there is an urgent need for a "fully dry" prefabricated assembly joint form that can avoid this form of failure, has good mechanical properties and is convenient for construction, and proposes a reasonable connection method according to its characteristics.
发明内容Contents of the invention
本发明旨在提供一种预制整体梁柱节点及其连接体系，该节点用于“全干式”装配混凝土框架结构。特点是整体性及力学性能好，且便于施工。The present invention aims to provide a prefabricated integral beam-column joint and its connecting system, which is used in a "fully dry" assembled concrete frame structure. It is characterized by good integrity and mechanical properties, and is convenient for construction.
为了达到上述目的，本发明的技术方案为：In order to achieve the above object, technical scheme of the present invention is:
一种用于“全干式”装配混凝土框架结构的结构，包括预制整体梁柱节点、预制梁和预制柱。A structure for "all dry" fabricated concrete frame structures comprising prefabricated integral beam-column joints, prefabricated beams and prefabricated columns.
所述的预制整体梁柱节点为十字形结构，整体浇筑养护成，包括核心区、梁端部件和柱端部件；其中，十字形结构中心部分为核心区，十字形结构横向部分为梁端部件、纵向部分为柱端部件。梁端部件在远离核心区一端设置第一带孔钢板预埋件；柱端部件在远离核心区一端设置第二带孔钢板预埋件；第一带孔钢板预埋件和第二带孔钢板预埋件采用焊接的方式与预制整体梁柱节点内的增强钢筋连接。The prefabricated integral beam-column joint is a cross-shaped structure, integrally poured and maintained, including the core area, beam end parts and column end parts; wherein, the central part of the cross-shaped structure is the core area, and the transverse part of the cross-shaped structure is the beam end part , The longitudinal part is a column end part. The beam end part is provided with the first steel plate embedded part with holes at the end away from the core area; the column end part is provided with the second steel plate embedded part with holes at the end far away from the core area; the first steel plate embedded part with holes and the second steel plate with holes The embedded parts are connected with the reinforcing steel bars in the prefabricated integral beam-column joints by welding.
所述的预制梁和预制柱浇筑养护成型，预制梁的端部设置第一带孔钢板预埋件，该第一带孔钢板预埋件通过摩擦螺栓与梁端部件端部的第一带孔钢板预埋件连接；预制柱的端部设置第二带孔钢板预埋件，该第二带孔钢板预埋件通过摩擦螺栓与柱端部件端部的第二带孔钢板预埋件连接。预制梁、预制柱端部的第一带孔钢板预埋件和第二带孔钢板预埋件采用焊接的方式与预制梁、预制柱内的增强钢筋连接。The prefabricated beam and the prefabricated column are poured and maintained, and the end of the prefabricated beam is provided with a first embedded steel plate with holes. The steel plate embedded part is connected; the end of the prefabricated column is provided with a second steel plate embedded part with holes, and the second steel plate embedded part with holes is connected to the second steel plate embedded part with holes at the end of the column end part through friction bolts. The first steel plate embedded parts with holes and the second steel plate embedded parts with holes at the ends of the prefabricated beams and columns are connected to the reinforced steel bars in the prefabricated beams and prefabricated columns by welding.
所述的第一带孔钢板预埋件和第二带孔钢板预埋件的尺寸及孔洞数量不同。所述的核心区、梁端部件、柱端部件、预制梁和预制柱的尺寸及配筋情况根据设计计算确定，其中预制梁的尺寸及配筋情况与梁端部件保持一致，预制柱的尺寸及配筋情况与柱端部件保持一致。The size and number of holes of the first steel plate embedded part with holes and the second steel plate embedded part with holes are different. The size and reinforcement of the core area, beam end parts, column end parts, prefabricated beams and prefabricated columns are determined according to design calculations, wherein the size and reinforcement of the prefabricated beams are consistent with the beam end parts, and the size of the prefabricated columns And the reinforcement situation is consistent with the column end parts.
本发明的有益效果：Beneficial effects of the present invention:
(1)具有更好的力学性能。相比于传统预制装配式梁柱节点，本发明所述的整体式梁柱节点的梁端、柱端以及节点核心区一体浇筑成型，内部配置连续分布的受力钢筋，节点区域的抗震性能更好。所述连接体系将传统的连接部位从试件端部向试件中部转移，避免薄弱环节处于最不利的弯矩和剪力作用区域，从而改善了框架结构的力学性能。(1) It has better mechanical properties. Compared with the traditional prefabricated beam-column joint, the beam end, column end and joint core area of the integral beam-column joint described in the present invention are integrally poured and molded, and the continuously distributed stressed steel bars are arranged inside, and the seismic performance of the joint area is better. it is good. The connection system transfers the traditional connection position from the end of the test piece to the middle of the test piece, avoiding the weak link in the most unfavorable area of bending moment and shear force, thereby improving the mechanical properties of the frame structure.
(2)现场操作快捷，方便施工。采用摩擦螺栓和预埋件连接预制构件，在现场消除浇筑混凝土等湿作业，缩短工期，提高效率。(2) On-site operation is quick and convenient for construction. Friction bolts and embedded parts are used to connect prefabricated components, eliminating wet operations such as pouring concrete on site, shortening the construction period and improving efficiency.
附图说明Description of drawings
图1是预制整体梁柱节点的正视图。Figure 1 is a front view of a prefabricated integral beam-column joint.
图2是预制整体梁柱节点的侧视图。Figure 2 is a side view of the prefabricated integral beam-column joint.
图3是预制整体梁柱节点的俯视图。Figure 3 is a top view of the prefabricated integral beam-column joint.
图4是预制整体梁柱节点连接体系的正视图。Fig. 4 is a front view of the prefabricated integral beam-column joint connection system.
图5是预制整体梁柱节点连接体系的侧视图。Fig. 5 is a side view of the prefabricated integral beam-column joint connection system.
图6是预制整体梁柱节点连接体系的俯视图。Fig. 6 is a top view of the prefabricated integral beam-column joint connection system.
图中：1预制整体梁柱节点；2核心区；3梁端部件；4柱端部件；5预制梁；6预制柱；7第一带孔钢板预埋件；8第二带孔钢板预埋件；9摩擦螺栓。In the figure: 1 prefabricated integral beam-column joint; 2 core area; 3 beam end parts; 4 column end parts; 5 prefabricated beams; 6 prefabricated columns; pieces; 9 friction bolts.
具体实施方法Specific implementation method
本发明具体实施方法为：The concrete implementation method of the present invention is:
一种用于“全干式”装配混凝土框架结构的结构，包括预制整体梁柱节点1、预制梁5和预制柱6。A structure for "full dry" assembled concrete frame structure, including prefabricated integral beam-column joints 1, prefabricated beams 5 and prefabricated columns 6.
所述的预制整体梁柱节点1为十字形结构，整体浇筑养护成，包括核心区2、梁端部件3和柱端部件4；其中，十字形结构中心部分为核心区2，十字形结构横向部分为梁端部件3、纵向部分为柱端部件4。梁端部件3在远离核心区2一端设置第一带孔钢板预埋件7；柱端部件4在远离核心区2一端设置第二带孔钢板预埋件8。The prefabricated integral beam-column node 1 is a cross-shaped structure, integrally poured and maintained, including the core area 2, beam end parts 3 and column end parts 4; wherein, the central part of the cross-shaped structure is the core area 2, and the cross-shaped structure is horizontally The part is the beam end part 3, and the longitudinal part is the column end part 4. The beam end part 3 is provided with a first steel plate embedded part 7 with holes at the end away from the core area 2 ; the column end part 4 is provided with a second steel plate embedded part 8 with holes at the end far away from the core area 2 .
所述的预制梁5和预制柱6浇筑养护成型，预制梁5的端部设置第一带孔钢板预埋件7，该第一带孔钢板预埋件7通过摩擦螺栓9与梁端部件3端部的第一带孔钢板预埋件7连接；预制柱6的端部设置第二带孔钢板预埋件8，该第二带孔钢板预埋件8通过摩擦螺栓9与柱端部件4端部的第二带孔钢板预埋件8连接。The prefabricated beam 5 and the prefabricated column 6 are poured and maintained, and the end of the prefabricated beam 5 is provided with a first steel plate embedded part 7 with holes, and the first steel plate embedded part 7 with holes is connected with the beam end part 3 The first steel plate embedded part 7 with holes at the end is connected; the end of the prefabricated column 6 is provided with a second steel plate embedded part 8 with holes, and the second steel plate embedded part 8 with holes is connected to the column end part 4 through a friction bolt 9 The second perforated steel plate embedded part 8 at the end is connected.
上述用于“全干式”装配混凝土框架结构的结构制备过程如下：The above-mentioned structural preparation process for the "fully dry" assembled concrete frame structure is as follows:
(1)按照设计计算要求，在预制构件厂浇筑预制整体梁柱节点1。在浇筑过程中，将第一带孔钢板预埋件7和第二带孔钢板预埋件8分别埋置于远离核心区2的梁端部件3和柱端部件4。第一带孔钢板预埋件7和第二带孔钢板预埋件8采用焊接的方式与预制整体梁柱节点1内的增强钢筋连接。(1) According to the design and calculation requirements, pour the prefabricated integral beam-column joint 1 in the prefabricated component factory. During the pouring process, the first steel plate embedded part 7 with holes and the second steel plate embedded part 8 with holes are respectively embedded in the beam end part 3 and the column end part 4 far away from the core area 2 . The first steel plate embedded part 7 with holes and the second steel plate embedded part 8 with holes are connected to the reinforcing steel bars in the prefabricated integral beam-column node 1 by welding.
(2)按照设计计算要求，在预制构件厂浇筑预制梁5和预制柱6，同时将另外的第一带孔钢板预埋件7和第二带孔钢板预埋件8分别埋置于预制梁5和预制柱6的两端。预制梁5、预制柱6端部的第一带孔钢板预埋件7和第二带孔钢板预埋件8采用焊接的方式与预制梁5、预制柱6内的增强钢筋连接。(2) According to the design and calculation requirements, the prefabricated beam 5 and precast column 6 are poured in the prefabricated component factory, and the other first embedded steel plate with holes 7 and the second embedded steel plate with holes 8 are respectively embedded in the prefabricated beam 5 and the two ends of the prefabricated column 6. The first steel plate embedded part 7 with holes and the second steel plate embedded part 8 with holes at the ends of the prefabricated beam 5 and the prefabricated column 6 are connected with the reinforcing steel bars in the prefabricated beam 5 and the prefabricated column 6 by welding.
(3)将预制整体梁柱节点1、预制梁5和预制柱6运至施工现场，先将预制整体梁柱节点1与已安装好的下层预制柱6连接，具体步骤为：将柱端部件4和预制柱6端部的第二带孔钢板预埋件8的孔位对齐，再在每一个孔位穿入高强度的摩擦螺栓9并旋紧。重复以上步骤，直到将上层预制柱6、左右侧预制梁5与预制整体梁柱节点1。(3) Transport the prefabricated integral beam-column node 1, prefabricated beam 5 and precast column 6 to the construction site, and first connect the prefabricated integral beam-column node 1 with the installed lower precast column 6. 4. Align with the hole position of the second steel plate embedded part 8 with holes at the end of the prefabricated column 6, and then penetrate a high-strength friction bolt 9 in each hole position and tighten it. Repeat the above steps until the upper prefabricated column 6, the left and right prefabricated beams 5 and the prefabricated integral beam-column node 1 are connected.
以上所述仅是本发明的优选实施方式，对于本技术领域的普通技术人员来说，在不脱离本发明原理的前提下，还可作出若干改进和润饰，这些改进和润饰也应视为本发明的保护范围。The above is only a preferred embodiment of the present invention, and for those of ordinary skill in the art, without departing from the principle of the present invention, some improvements and modifications can also be made, and these improvements and modifications should also be regarded as the present invention. protection scope of the invention.
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| CN109183985A (en) * | 2018-10-19 | 2019-01-11 | 沈华 | A kind of novel dry full-prefabricated assembled concrete frame linked system |
| CN109853728A (en) * | 2019-03-29 | 2019-06-07 | 安徽建筑大学 | A kind of assembled architecture dry type beam-column connection |
| CN110173043A (en) * | 2019-07-03 | 2019-08-27 | 安徽建筑大学 | A kind of beam-column connection assembled using high-strength bolt |
| CN110284591A (en) * | 2019-06-28 | 2019-09-27 | 王本淼 | Method for connecting main beam and structural support |
| CN110984369A (en) * | 2019-06-28 | 2020-04-10 | 王海崴 | Steel plate component for connecting frame structure support steel bar and beam steel bar |
| CN111636560A (en) * | 2020-07-02 | 2020-09-08 | 张家港联峰钢铁研究所有限公司 | A prefabricated reinforced concrete bearing body for prefabricated buildings |
| CN112177152A (en) * | 2020-10-20 | 2021-01-05 | 天津大学 | Beam-column joint of prefabricated special-shaped column structure and manufacturing method thereof |
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| CN110952656A (en) * | 2019-06-28 | 2020-04-03 | 王本淼 | Method for connecting main beam and structural support |
| CN110952655A (en) * | 2019-06-28 | 2020-04-03 | 王本淼 | Method for connecting main beam and structural support |
| CN110984369A (en) * | 2019-06-28 | 2020-04-10 | 王海崴 | Steel plate component for connecting frame structure support steel bar and beam steel bar |
| CN110284591B (en) * | 2019-06-28 | 2021-04-16 | 王本淼 | A connection method of main beam and structural support |
| CN110173043A (en) * | 2019-07-03 | 2019-08-27 | 安徽建筑大学 | A kind of beam-column connection assembled using high-strength bolt |
| CN111636560A (en) * | 2020-07-02 | 2020-09-08 | 张家港联峰钢铁研究所有限公司 | A prefabricated reinforced concrete bearing body for prefabricated buildings |
| CN112177152A (en) * | 2020-10-20 | 2021-01-05 | 天津大学 | Beam-column joint of prefabricated special-shaped column structure and manufacturing method thereof |
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Application publication date: 20180223 |