CN111809729A - A dry connection node for prefabricated concrete beams and columns - Google Patents
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 67
- 239000010959 steel Substances 0.000 claims abstract description 67
- 239000011178 precast concrete Substances 0.000 claims abstract description 30
- 230000002787 reinforcement Effects 0.000 claims abstract description 9
- 238000010276 construction Methods 0.000 abstract description 22
- 238000011161 development Methods 0.000 abstract description 6
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- 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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- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/98—Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids
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- E—FIXED CONSTRUCTIONS
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- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/025—Structures with concrete columns
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Abstract
本发明提供了一种装配式混凝土梁柱的干式连接节点，属于建筑技术领域。包括预制混凝土柱、预制混凝土梁、槽钢、工字型钢、直角钢板；预制混凝土柱中设有柱横向钢筋预留孔道，预制混凝土柱上部右侧设置柱预埋件A，柱预埋件A下方设置工字型钢，工字型钢下方设置牛腿，牛腿中设有牛腿纵向螺栓预留孔道，牛腿右侧设置工字型钢，牛腿下方的预制混凝土柱上设置柱预埋件B；本发明的优点效果是采用干式连接，现场工作量小，连接可靠，传力明确，整体性好，部件标准化，适应装配式混凝土建筑产业化发展。
The invention provides a dry connection node of an assembled concrete beam and column, belonging to the technical field of construction. Including prefabricated concrete columns, prefabricated concrete beams, channel steel, I-beam steel, right-angle steel plates; prefabricated concrete columns are provided with reserved holes for column transverse reinforcement, and prefabricated concrete columns are provided with column embedded parts A and column embedded parts A on the right side of the upper part of the prefabricated concrete column. The I-shaped steel is arranged below, the corbel is arranged under the I-shaped steel, the longitudinal bolts of the corbel are reserved for the holes, the I-shaped steel is arranged on the right side of the corbel, and the column embedded part B is arranged on the precast concrete column below the corbel The advantages and effects of the invention are that the dry connection is adopted, the field workload is small, the connection is reliable, the force transmission is clear, the integrity is good, the components are standardized, and the industrialization development of the prefabricated concrete building is suitable.
Description
技术领域technical field
本发明属于建筑技术领域，特别是涉及一种装配式混凝土梁柱的干式连接节点。The invention belongs to the technical field of construction, and in particular relates to a dry connection node of an assembled concrete beam and column.
背景技术Background technique
装配式混凝土建筑是指以工厂化生产的混凝土预制构件为主．通过现场装配的方式设计建造的混凝土结构类房屋建筑。构件的装配方法一般有现场后浇叠合层混凝土、钢筋锚固后浇混凝土连接等，钢筋连接可采用套筒灌浆连接、焊接、机械连接及预留孔洞搭接连接等做法。20世纪80年代，在我国流行的装配式预制大板住宅，由于结构整体性差、渗漏、楼板裂缝等原因，存在许多影响结构安全及正常使用的隐患和缺陷，逐渐被现浇混凝土结构所取代。但随着当前新兴的装配式混凝土结构的应用，特别是近年来引进了许多国外先进技术，本土化的装配式混凝土结构建造新技术正逐步形成。Prefabricated concrete buildings refer to prefabricated concrete components produced in factories. Concrete structures are designed and constructed by on-site assembly. The assembly methods of components generally include on-site post-pouring of superimposed layer concrete, steel anchoring and post-casting concrete connection, etc. The steel bar connection can be done by sleeve grouting connection, welding, mechanical connection and reserved hole lap connection. In the 1980s, the prefabricated prefabricated large slab houses that were popular in my country, due to poor structural integrity, leakage, floor cracks and other reasons, had many hidden dangers and defects that affected the safety and normal use of the structure, and were gradually replaced by cast-in-place concrete structures. . However, with the application of the current emerging prefabricated concrete structures, especially the introduction of many foreign advanced technologies in recent years, localized new technologies for the construction of prefabricated concrete structures are gradually being formed.
随着我国“建筑工业化、住宅产业化”进程的加快，以及中国“人口红利”的不断减少，建筑行业用工荒的出现住宅工业产业化的趋势日渐明显。装配式混凝土结构的应用重新成为当前研究热点全国各地不断涌现出住宅建筑装配式混凝土结构的新技术、新形式。装配式钢筋混凝土结构是我国建筑结构发展的重要方向之一，它有利于我国建筑工业化的发展，提高生产效率节约能源，发展绿色环保建筑，并且有利于提高和保证建筑工程质量。与现浇施工工法相比，装配式RC结构有利于绿色施工，因为装配式施工更能符合绿色施工的节地、节能、节材、节水和环境保护等要求，降低对环境的负面影响，包括降低噪音、防止扬尘、减少环境污染、清洁运输、减少场地干扰、节约水、电、材料等资源和能源，遵循可持续发展的原则。而且，装配式结构可以连续地按顺序完成工程的多个或全部工序，从而减少进场的工程机械种类和数量，消除工序衔接的停闲时间，实现立体交叉作业，减少施工人员，从而提高工效、降低物料消耗、减少环境污染，为绿色施工提供保障。另外，装配式结构在较大程度上减少建筑垃圾（约占城市垃圾总量的30%―40%），如废钢筋、废铁丝、废竹木材、废弃混凝土等。With the acceleration of the process of "construction industrialization and housing industrialization" in China and the continuous reduction of China's "demographic dividend", the labor shortage in the construction industry has become more and more obvious. The application of prefabricated concrete structures has once again become a current research hotspot. New technologies and new forms of prefabricated concrete structures for residential buildings are emerging all over the country. Prefabricated reinforced concrete structure is one of the important directions for the development of building structures in my country. It is conducive to the development of my country's building industrialization, improving production efficiency, saving energy, developing green and environmentally friendly buildings, and helping to improve and ensure the quality of construction projects. Compared with the cast-in-place construction method, the prefabricated RC structure is conducive to green construction, because the prefabricated construction can better meet the requirements of green construction, such as land saving, energy saving, material saving, water saving and environmental protection, and reduce the negative impact on the environment. Including reducing noise, preventing dust, reducing environmental pollution, clean transportation, reducing site disturbance, saving water, electricity, materials and other resources and energy, following the principle of sustainable development. Moreover, the prefabricated structure can continuously complete multiple or all processes of the project in sequence, thereby reducing the type and quantity of construction machinery entering the site, eliminating the idle time of process connection, realizing three-dimensional cross operation, reducing construction personnel, and improving work efficiency. , Reduce material consumption, reduce environmental pollution, and provide guarantee for green construction. In addition, the prefabricated structure can reduce construction waste (accounting for about 30%-40% of the total urban waste) to a large extent, such as waste steel bars, waste iron wires, waste bamboo wood, waste concrete, etc.
装配式混凝土建筑依据装配化程度高低可分为全装配和部分装配两大类。全装配建筑一般限制为低层或抗震设防要求较低的多层建筑；部分装配混凝土建筑主要构件一般采用预制构件、在现场通过现浇混凝土连接，形成装配整体式结构的建筑。Prefabricated concrete buildings can be divided into two categories: full assembly and partial assembly according to the degree of assembly. Fully assembled buildings are generally limited to low-rise or multi-storey buildings with low seismic fortification requirements; some of the main components of prefabricated concrete buildings are generally prefabricated and connected by cast-in-place concrete on site to form a building with an integrated structure.
我国从20世纪五六十年代开始研究装配式混凝土建筑的设计施工技术，形成了一系列装配式混凝土建筑体系，较为典型的建筑体系有装配式单层工业厂房建筑体系、装配式多层框架建筑体系、装配式大板建筑体系等。到20世纪80年代装配式混凝土建筑的应用达到全盛时期，全国许多地方都形成了设计、制作和施工安装一体化的装配式混凝土工业化建筑模式．装配式混凝土建筑和采用预制空心楼板的砌体建筑成为两种最主要的建筑体系，应用普及率达70％以上。由于装配式建筑的功能和物理性能存在许多局限和不足，我国的装配式混凝土建筑设计和施工技术研发水平还跟不上社会需求及建筑技术发展的变化，到20世纪90年代中期，装配式混凝土建筑已逐渐被全现浇混凝土建筑体系取代，目前除装配式单层工业厂房建筑体系应用较广泛外。其他预制装配式建筑体系的工程应用极少。预制结构抗震的整体性和设计施工管理的专业化研究不够，造成其技术经济性较差。是导致预制结构长期处于停滞状态的根本原因。my country began to study the design and construction technology of prefabricated concrete buildings from the 1950s and 1960s, and formed a series of prefabricated concrete building systems. The more typical building systems include prefabricated single-story industrial plant building systems and prefabricated multi-storey frame buildings. system, prefabricated slab building system, etc. By the 1980s, the application of prefabricated concrete buildings reached its heyday, and many parts of the country had formed a prefabricated concrete industrialized building model integrating design, production, construction and installation. Prefabricated concrete buildings and masonry buildings with prefabricated hollow floor slabs have become the two most important building systems, with an application penetration rate of over 70%. Due to the many limitations and deficiencies in the functions and physical properties of prefabricated buildings, my country's prefabricated concrete building design and construction technology research and development level has not kept up with the changes in social needs and construction technology development. By the mid-1990s, prefabricated concrete The building has been gradually replaced by the all-in-place concrete building system, except for the prefabricated single-story industrial plant building system, which is widely used. There are very few engineering applications of other prefabricated building systems. The seismic integrity of prefabricated structures and the specialized research on design and construction management are insufficient, resulting in poor technical economy. It is the root cause of the long-term stagnation of prefabricated structures.
发明内容SUMMARY OF THE INVENTION
为了解决上述存在的技术问题，本发明提供一种装配式混凝土梁柱的干式连接节点，主要解决现场施工复杂，资源消耗量大，梁端抗弯剪能力差的问题。In order to solve the above-mentioned technical problems, the present invention provides a dry-type connection node of prefabricated concrete beams and columns, which mainly solves the problems of complex on-site construction, large resource consumption and poor bending and shear resistance of beam ends.
为了实现上述目的，本发明采用的技术方案为：In order to achieve the above object, the technical scheme adopted in the present invention is:
一种装配式混凝土梁柱的干式连接节点，包括预制混凝土柱、预制混凝土梁、槽钢、工字型钢、直角钢板；A dry-type connection node of prefabricated concrete beams and columns, comprising prefabricated concrete columns, prefabricated concrete beams, channel steel, I-shaped steel, and right-angle steel plates;
预制混凝土柱中设有柱横向钢筋预留孔道，预制混凝土柱上部右侧设置柱预埋件A，柱预埋件A下方设置工字型钢，工字型钢下方设置牛腿，牛腿中设有牛腿纵向螺栓预留孔道，牛腿右侧设置工字型钢，牛腿下方的预制混凝土柱上设置柱预埋件B；The prefabricated concrete column is provided with a reserved channel for the transverse reinforcement of the column, the upper right side of the prefabricated concrete column is provided with a column embedded part A, an I-shaped steel is set below the column embedded part A, a corbel is provided under the I-shaped steel, and the corbel is provided with The holes are reserved for the longitudinal bolts of the corbel, the I-shaped steel is arranged on the right side of the corbel, and the column embedded part B is arranged on the precast concrete column below the corbel;
预制混凝土梁的端部下侧设置缺口，预制混凝土梁顶部设置梁横向钢筋预留孔道，中部设置梁纵向螺栓预留孔道，预制混凝土梁的端部左侧和缺口左侧各设置一个槽钢；The underside of the end of the precast concrete beam is provided with a gap, the top of the precast concrete beam is provided with a reserved hole for the transverse reinforcement of the beam, the middle part is provided with a reserved hole for the longitudinal bolt of the beam, and a channel steel is provided on the left side of the end of the precast concrete beam and the left side of the gap;
预制混凝土梁的缺口与牛腿配合搭接，工字型钢与槽钢互相卡和后，将两块直角钢板分别置于预制混凝土梁端部的上下侧，两块直角钢板的一边分别与柱预埋件A、柱预埋件B固定，另一边通过螺栓与预制混凝土梁和牛腿固定，将钢筋依次穿过柱横向钢筋预留孔道、梁横向钢筋预留孔道，采用套筒灌浆的方式固定。The gaps of the precast concrete beams are lapped together with the corbels. After the I-beam and the channel steel are interlocked with each other, two right-angle steel plates are placed on the upper and lower sides of the end of the precast concrete beams. The embedded part A and the embedded part B of the column are fixed, and the other side is fixed with the precast concrete beam and corbel through bolts.
进一步地，预制混凝土梁端部下侧的缺口尺寸与牛腿的尺寸一致。Further, the size of the notch on the lower side of the end of the precast concrete beam is consistent with the size of the corbel.
进一步地，槽钢与工字型钢对位插接后无缝隙。Further, there is no gap after the channel steel and the I-shaped steel are aligned and inserted.
进一步地，直角钢板上设有直角钢板预留孔，直角钢板预留孔、牛腿纵向螺栓预留孔道、梁纵向螺栓预留孔道三者位置相对应。Further, the right-angle steel plate is provided with a right-angle steel plate reserved hole, the right-angle steel plate reserved hole, the corbel longitudinal bolt reserved hole, and the beam longitudinal bolt reserved hole corresponding to the three positions.
本发明的有益效果：Beneficial effects of the present invention:
本发明的效果和优点是连接方式采用干作业施工，简化施工；混凝土梁柱及牛腿连接可靠，整体性好，具有优越的抗震性能；构件标准化，显著提升工业化效率，适应装配式混凝土建筑产业化发展，降低资源及能源消耗。The effects and advantages of the invention are that the connection method adopts dry operation construction, which simplifies construction; the concrete beams, columns and corbels are connected reliably, have good integrity, and have superior seismic performance; the components are standardized, which can significantly improve the industrialization efficiency and adapt to the prefabricated concrete construction industry. development and reduce resource and energy consumption.
附图说明Description of drawings
图1为预制混凝土柱与预制混凝土梁连接示意图。Figure 1 is a schematic diagram of the connection between a precast concrete column and a precast concrete beam.
图2为预制混凝土柱结构示意图。Figure 2 is a schematic diagram of the precast concrete column structure.
图3为预制混凝土梁结构示意图。Figure 3 is a schematic diagram of the precast concrete beam structure.
图4为直角钢板结构示意图。Figure 4 is a schematic diagram of the structure of a right-angle steel plate.
图5为工字型钢结构示意图。Figure 5 is a schematic diagram of an I-shaped steel structure.
图6为槽钢结构示意图。Figure 6 is a schematic diagram of the channel steel structure.
图7为工字型钢与槽钢连接示意图。Figure 7 is a schematic diagram of the connection between the I-shaped steel and the channel steel.
图中：1为预制混凝土柱；2为预制混凝土梁；3为槽钢；4为工字型钢；5为直角钢板；1-1为柱横向钢筋预留孔道；1-2为牛腿纵向螺栓预留孔道；1-3为柱预埋件A；1-4为牛腿；1-5为柱预埋件B；2-1为梁横向钢筋预留孔道；2-2为梁纵向螺栓预留孔道；5-1为直角钢板预留孔。In the figure: 1 is a precast concrete column; 2 is a precast concrete beam; 3 is a channel steel; 4 is an I-shaped steel; 5 is a right-angle steel plate; Reserved holes; 1-3 is the column embedded part A; 1-4 is the corbel; 1-5 is the column embedded part B; 2-1 is the reserved hole for the beam transverse reinforcement; 2-2 is the beam longitudinal bolt Leave holes; 5-1 reserve holes for right-angle steel plates.
具体实施方式Detailed ways
下面结合附图和实施例对本发明进行详细描述：The present invention is described in detail below in conjunction with accompanying drawing and embodiment:
实施例：如图1-图7所示，本发明一种装配式混凝土梁柱的干式连接节点，包括预制混凝土柱1、预制混凝土梁2、槽钢3、工字型钢4、直角钢板5；Embodiment: As shown in Figure 1-Figure 7, a dry connection node of a prefabricated concrete beam and column of the present invention includes a
预制混凝土柱1中设有柱横向钢筋预留孔道1-1，预制混凝土柱1上部右侧设置柱预埋件A1-3，柱预埋件A1-3下方设置工字型钢4，工字型钢4下方设置牛腿1-4，牛腿1-4中设有牛腿纵向螺栓预留孔道1-2，牛腿1-4右侧设置工字型钢4，牛腿1-4下方的预制混凝土柱1上设置柱预埋件B1-5；The
预制混凝土梁2的端部下侧设置缺口，预制混凝土梁2顶部设置梁横向钢筋预留孔道2-1，中部设置梁纵向螺栓预留孔道2-2，预制混凝土梁2的端部左侧和缺口左侧各设置一个槽钢3；A gap is set on the lower side of the end of the
预制混凝土梁2的缺口与牛腿1-4配合搭接，工字型钢4与槽钢3互相卡和后，将两块直角钢板5分别置于预制混凝土梁2端部的上下侧，两块直角钢板5的一边分别与柱预埋件A1-3、柱预埋件B1-5固定，另一边通过螺栓与预制混凝土梁2和牛腿1-4固定，将钢筋依次穿过柱横向钢筋预留孔道1-1、梁横向钢筋预留孔道2-1，采用套筒灌浆的方式固定。The gap of the
预制混凝土梁2端部下侧的缺口尺寸与牛腿1-4的尺寸一致。The size of the notch on the underside of the end of the precast
槽钢3与工字型钢4对位插接后无缝隙。The
直角钢板5上设有直角钢板预留孔5-1，直角钢板预留孔5-1、牛腿纵向螺栓预留孔道1-2、梁纵向螺栓预留孔道2-2三者位置相对应。The right-
以上所述仅是本发明的优选实施方式，应当指出，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，还可以做出若干改进和润饰，这些改进和润饰也应视为本发明的保护范围。The above are only the preferred embodiments of the present invention. It should be pointed out that for those skilled in the art, without departing from the principles of the present invention, several improvements and modifications can be made. It should be regarded as the protection scope of the present invention.
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