CN109024875A - A kind of assembled integral concrete component and construction method - Google Patents
A kind of assembled integral concrete component and construction method Download PDFInfo
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- CN109024875A CN109024875A CN201810819606.6A CN201810819606A CN109024875A CN 109024875 A CN109024875 A CN 109024875A CN 201810819606 A CN201810819606 A CN 201810819606A CN 109024875 A CN109024875 A CN 109024875A
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- 239000004567 concrete Substances 0.000 title claims abstract description 131
- 238000010276 construction Methods 0.000 title claims abstract description 16
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 77
- 239000010959 steel Substances 0.000 claims abstract description 77
- 230000002787 reinforcement Effects 0.000 claims abstract description 69
- 238000000034 method Methods 0.000 claims abstract description 28
- 230000003014 reinforcing effect Effects 0.000 claims abstract 5
- 238000013461 design Methods 0.000 claims description 9
- 238000009415 formwork Methods 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 239000011440 grout Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 description 5
- 239000004568 cement Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000011178 precast concrete Substances 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000011150 reinforced concrete Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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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
- E04B1/02—Structures consisting primarily of load-supporting, block-shaped, or slab-shaped elements
- E04B1/04—Structures consisting primarily of load-supporting, block-shaped, or slab-shaped elements the elements consisting of concrete, e.g. reinforced concrete, or other stone-like material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/14—Producing shaped prefabricated articles from the material by simple casting, the material being neither forcibly fed nor positively compacted
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
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- Ceramic Engineering (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
本发明公开了一种装配式整体式混凝土构件及施工方法，其特征在于，包括多个子混凝土构件，每个子混凝土构件中设有穿筋孔道，穿筋孔道之外区域按设计要求配置有竖向钢筋，相邻的子混凝土构件之间通过插在穿筋孔道内的搭接钢筋相连；在所述的穿筋孔道内填充有混凝土。预制混凝土竖向构件(墙、柱)时，按照一个楼层高度分段预制，通过构件内的竖向钢筋连接为一个整体。为了能够留出上、下层竖向钢筋搭接连接的空间，将预制混凝土竖向构件作成中空的上下贯通，能够穿入竖向钢筋并能灌入混凝土的孔道；钢筋的接头方式避免了套筒灌浆和浆锚搭接，更加简单、方便。上下预制构件也通过孔道内的混凝土浇筑为一个整体，更加安全可靠。
The invention discloses an assembled integral concrete component and a construction method, which is characterized in that it comprises a plurality of sub-concrete components, each sub-concrete component is provided with a tunnel for piercing reinforcement, and the area outside the tunnel for piercing reinforcement is configured with vertical Reinforcing bars, adjacent sub-concrete components are connected by overlapping steel bars inserted in the reinforcing tunnel; the reinforcing tunnel is filled with concrete. When prefabricating concrete vertical components (walls, columns), prefabricate in sections according to the height of a floor, and connect them as a whole through the vertical steel bars in the components. In order to leave space for the lap connection of the upper and lower vertical steel bars, the prefabricated concrete vertical members are made hollow up and down, which can penetrate the vertical steel bars and pour into the concrete channel; the joint method of the steel bars avoids the use of sleeves Grouting and grout anchor lapping are simpler and more convenient. The upper and lower prefabricated components are also poured into a whole through the concrete in the tunnel, which is safer and more reliable.
Description
技术领域technical field
本发明涉及一种装配式整体式混凝土构件及施工方法。The invention relates to an assembled integral concrete component and a construction method.
背景技术Background technique
装配整体式混凝土结构具有工业化水平高、便于冬季施工、减少现场湿作业量、减少材料浪费、减少工地扬尘、噪音，从而达到提高建筑质量、提高生产效率、节能减排和保护环境的目的。为保证结构的整体性，竖向预制承重构件(墙体、柱)的纵向受力钢筋连接是装配整体混凝土结构中最为关键的技术。The assembled integral concrete structure has a high level of industrialization, is convenient for winter construction, reduces the amount of wet work on site, reduces waste of materials, reduces dust and noise on the construction site, so as to achieve the purpose of improving construction quality, increasing production efficiency, saving energy and reducing emissions, and protecting the environment. In order to ensure the integrity of the structure, the connection of longitudinally stressed steel bars of vertical prefabricated load-bearing components (walls, columns) is the most critical technology in the assembly of integral concrete structures.
目前国内外比较成熟的竖向预制承重构件的钢筋连接技术主要有两种：套筒灌浆连接和浆锚搭接连接。套筒灌浆连接是指在预制混凝土构件中预埋的金属套筒中插入钢筋并灌注水泥基灌浆料而实现的钢筋连接方式。浆锚搭接连接是指在预制混凝土构件中采用特殊工艺制成的孔道中插入需搭接的钢筋，并灌注水泥基灌浆料而实现的钢筋搭接连接方式。但这两种方法施工工艺复杂，灌浆的密实性不易检验，容易成为质量隐患。专利“灌芯叠合装配式钢筋混凝土剪力墙结构的建造方法”(ZL201210399425)提供一种竖向剪力墙的拼接方法，即在构件内预留竖向贯通孔以实现上下层竖向构件钢筋的贯通连接。但该方法的钢筋连接方式依然采用了套筒连接的方式。因此，需要开发一种简易实用安全可靠的连接方法十分必要。At present, there are two mature steel bar connection technologies for vertical prefabricated load-bearing components at home and abroad: sleeve grouting connection and grouting anchor lap connection. Sleeve grouting connection refers to the steel bar connection method realized by inserting steel bars into metal sleeves embedded in precast concrete components and pouring cement-based grouting materials. Grout-anchor lap joint refers to the steel bar lap joint connection method that is realized by inserting the steel bar to be lapped in the channel made by special process in the precast concrete member and pouring cement-based grouting material. However, the construction process of these two methods is complicated, and the compactness of grouting is not easy to test, which is likely to become a quality hidden danger. The patent "Construction method of reinforced concrete shear wall structure with pouring and superimposed assembly" (ZL201210399425) provides a splicing method for vertical shear walls, that is, vertical through holes are reserved in the components to realize the vertical components of the upper and lower layers. Through connection of steel bars. However, the steel bar connection method of this method still adopts the sleeve connection method. Therefore, it is necessary to develop a simple, practical, safe and reliable connection method.
发明内容Contents of the invention
为了解决现有技术中存在的技术问题，本发明的目的在于提出一种新的装配式整体式混凝土构件及竖向钢筋连接方法；由于钢筋与混凝土之间有一定黏结力，钢筋将承担的力通过黏结力传递到邻近混凝土中，并进一步依靠黏结力传递给邻近钢筋。为可靠传力，两根钢筋之间必须有足够的搭接长度。In order to solve the technical problems existing in the prior art, the object of the present invention is to propose a new assembly-type integral concrete member and a method for connecting vertical steel bars; It is transmitted to the adjacent concrete through the bonding force, and further depends on the bonding force to the adjacent steel bars. In order to transmit force reliably, there must be sufficient lap length between the two steel bars.
基于混凝土构件钢筋搭接连接传力的机理，本发明提出一种装配式整体式混凝土构件，包括多个子混凝土构件，每个子混凝土构件中设有穿筋孔道，穿筋孔道之外区域按设计要求配置有竖向钢筋，相邻的子混凝土构件之间通过插在穿筋孔道内的搭接钢筋相连；在所述的穿筋孔道内填充有混凝土。Based on the force transmission mechanism of the lap joint connection of concrete members, the present invention proposes a prefabricated integral concrete member, including multiple sub-concrete members, each sub-concrete member is provided with a tunnel for piercing reinforcement, and the area outside the tunnel for piercing reinforcement is according to the design requirements Vertical steel bars are arranged, and the adjacent sub-concrete components are connected by overlapping steel bars inserted in the reinforcement tunnel; the concrete is filled in the reinforcement tunnel.
进一步的，上述所述的装配式整体式混凝土构件中，子混凝土构件中的穿筋孔道贯穿其顶面和底面；所述的搭接钢筋的两端分别插在相邻的两个子混凝土构件中，实现相邻子混凝土构件的连接。Further, in the above-mentioned prefabricated monolithic concrete member, the reinforcement channel in the sub-concrete member runs through its top surface and bottom surface; the two ends of the overlapping steel bars are respectively inserted into two adjacent sub-concrete members , to realize the connection of adjacent sub-concrete components.
进一步的，上述所述的装配式整体式混凝土构件中，所述的竖向钢筋贴近孔道内壁位置固定。Further, in the prefabricated monolithic concrete member mentioned above, the vertical reinforcement is fixed close to the inner wall of the tunnel.
进一步的，上述所述的装配式整体式混凝土构件中，搭接钢筋位置与子混凝土构件内竖向钢筋贴紧，方向竖直向上，伸入穿筋孔道内搭接钢筋的长度需大于规范规定的搭接长度，而预留向上插入上一节子混凝土构件穿筋孔道的搭接钢筋的长度也需大于规范规定的搭接长度。Further, in the above-mentioned prefabricated integral concrete member, the position of the lapped steel bar is close to the vertical steel bar in the sub-concrete member, and the direction is vertically upward, and the length of the lapped steel bar inserted into the reinforcement tunnel must be greater than the specification The length of the lap joint, and the length of the lap steel bar reserved to be inserted upward into the reinforcement channel of the previous section of the concrete member must also be greater than the lap length specified in the code.
进一步的，搭接钢筋与子混凝土构件内竖向钢筋的数量和规格一致。Further, the number and specification of the overlapping steel bars are consistent with the vertical steel bars in the sub-concrete members.
上面所述的装配式整体式混凝土构件具体的施工方法，如下The specific construction method of the prefabricated monolithic concrete member mentioned above is as follows
步骤1预制多个子混凝土构件，每个子混凝土构件中预制有穿筋孔道，孔道之外区域按设计要求配置竖向钢筋；Step 1 Prefabricate multiple sub-concrete components, each sub-concrete component is prefabricated with a tunnel for piercing reinforcement, and the area outside the tunnel is configured with vertical reinforcement according to the design requirements;
步骤2在拼装现场，将步骤1中预制的子混凝土构件立起；且在穿筋孔道内插入搭接钢筋，并临时固定；Step 2: At the assembly site, erect the sub-concrete components prefabricated in Step 1; and insert overlapping steel bars into the reinforcement tunnel, and temporarily fix them;
步骤3向穿筋孔道内浇注微膨胀混凝土；Step 3 pouring micro-expansion concrete into the reinforced tunnel;
步骤4将上段子混凝土构件吊起，放在步骤3中的子混凝土构件顶部，步骤3中的子混凝土构件的搭接钢筋穿入到上段子混凝土构件的穿筋孔道内；上段预制构件与下段预制构件对齐；然后再向穿筋孔道内浇注微膨胀混凝土；Step 4 lifts the upper sub-concrete member and puts it on the top of the sub-concrete member in step 3, and the lapped steel bars of the sub-concrete member in step 3 penetrate into the reinforcement channel of the upper sub-concrete member; Align the prefabricated components; then pour the micro-expansion concrete into the reinforced tunnel;
步骤5重复步骤2、3、4，将整个建筑物竖向构件拼装完毕。Step 5 Repeat steps 2, 3, and 4 to complete the assembly of the vertical components of the entire building.
进一步的，步骤1的子混凝土构件具体制作方法如下：Further, the specific manufacturing method of the sub-concrete component in step 1 is as follows:
通过预埋内模板的方法制作预制子混凝土构件的穿筋孔道，子混凝土构件穿筋孔道之外区域按设计要求配置竖向钢筋，为了与孔道内搭接连接的钢筋可靠传力，该竖向钢筋贴近孔道内壁位置固定，用于成型穿筋孔道用内模板的外边线比竖向钢筋内边线位置略小；在浇筑完竖向构件混凝土的初凝之后，终凝之前(大约10小时左右)将内模板抽出，形成中空的穿筋孔道；The reinforced tunnel of the prefabricated sub-concrete member is made by pre-embedding the inner formwork, and the area outside the reinforced tunnel of the sub-concrete member is configured with vertical reinforcement according to the design requirements. The position of the steel bar close to the inner wall of the channel is fixed, and the outer edge of the inner formwork used to form the reinforced channel is slightly smaller than the inner edge of the vertical steel bar; after the initial setting of the vertical component concrete is poured, before the final setting (about 10 hours) Pull out the inner template to form a hollow tunnel through the reinforcement;
由于子混凝土构件按照一个楼层高度分段预制，竖向钢筋在子混凝土构件的顶端和底端断开。Since the sub-concrete members are prefabricated in sections according to a floor height, the vertical reinforcement is broken at the top and bottom ends of the sub-concrete members.
进一步的，所述的搭接钢筋与子混凝土构件内竖向钢筋的数量和规格一致，位置与子混凝土构件内竖向钢筋贴紧，方向竖直向上，伸入穿筋孔道内搭接钢筋的长度需大于规范规定的搭接长度，而预留向上插入上一节子混凝土构件穿筋孔道的搭接钢筋的长度也需大于规范规定的搭接长度。Further, the number and specification of the overlapping steel bars are consistent with the vertical steel bars in the sub-concrete member, the position is close to the vertical steel bars in the sub-concrete member, the direction is vertically upward, and the overlapping steel bars extend into the reinforcement tunnel. The length must be greater than the lap length specified in the code, and the length of the lap steel bar reserved to be inserted upward into the reinforcement channel of the previous section of the concrete member must also be greater than the lap length specified in the code.
本发明的有益效果如下：The beneficial effects of the present invention are as follows:
本方法与传统方法相比，预制子混凝土竖向构件(墙、柱)时，按照一个楼层高度分段预制，通过构件内的竖向钢筋连接为一个整体。为了能够留出上、下层竖向钢筋搭接连接的空间，将子预制混凝土竖向构件作成中空的上下贯通，能够穿入竖向钢筋并能灌入混凝土的孔道；钢筋的接头方式避免了套筒灌浆和浆锚搭接，更加简单、方便。上下预制构件也通过孔道内的混凝土浇筑为一个整体，更加安全可靠。Compared with the traditional method, this method prefabricates sub-concrete vertical components (walls, columns) in sections according to the height of a floor, and is connected as a whole through the vertical steel bars in the components. In order to leave space for the lap connection of the upper and lower vertical steel bars, the sub-prefabricated concrete vertical members are made hollow up and down, which can penetrate the vertical steel bars and pour into the concrete tunnel; the joint method of the steel bars avoids the Tube grouting and grout-anchor lapping are simpler and more convenient. The upper and lower prefabricated components are also poured into a whole through the concrete in the tunnel, which is safer and more reliable.
附图说明Description of drawings
构成本申请的一部分的说明书附图用来提供对本申请的进一步理解，本申请的示意性实施例及其说明用于解释本申请，并不构成对本申请的不当限定。The accompanying drawings constituting a part of the present application are used to provide further understanding of the present application, and the schematic embodiments and descriptions of the present application are used to explain the present application, and do not constitute improper limitations to the present application.
图1预制好的混凝土竖向构件；Fig. 1 prefabricated concrete vertical member;
图2本层穿筋孔内插入竖向钢筋并浇筑孔内混凝土；Figure 2 Insert vertical steel bars into the reinforcement holes of this layer and pour concrete in the holes;
图3上层预制构件安装就位；Figure 3 The upper prefabricated components are installed in place;
图4上层预制构件穿筋孔内插入竖向钢筋并浇筑孔内混凝土；Fig. 4 Insert vertical steel bars into the reinforcement holes of the upper prefabricated components and pour concrete in the holes;
图5搭接钢筋的搭接长度示意图。Figure 5. Schematic diagram of the lap length of lapped steel bars.
图中：1——预制构件；2——预制构件内的穿筋孔；3——预制构件内的竖向钢筋；4——搭接钢筋；5——穿筋孔内浇筑的混凝土；6——上层预制构件内的竖向钢筋。In the figure: 1—prefabricated component; 2—reinforced hole in the prefabricated component; 3—vertical reinforcement in the prefabricated component; 4—lapped reinforcement; 5—concrete poured in the reinforced hole; 6 - vertical reinforcement in the upper precast elements.
具体实施方式Detailed ways
应该指出，以下详细说明都是例示性的，旨在对本申请提供进一步的说明。除非另有指明，本文使用的所有技术和科学术语具有与本申请所属技术领域的普通技术人员通常理解的相同含义。It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
需要注意的是，这里所使用的术语仅是为了描述具体实施方式，而非意图限制根据本申请的示例性实施方式。如在这里所使用的，除非上下文另外明确指出，否则单数形式也意图包括复数形式，此外，还应当理解的是，当在本说明书中使用术语“包含”和/或“包括”时，其指明存在特征、步骤、操作、器件、组件和/或它们的组合；It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and/or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and/or combinations thereof;
为了方便叙述，本发明中如果出现“上”、“下”、“左”“右”字样，仅表示与附图本身的上、下、左、右方向一致，并不对结构起限定作用,仅仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的设备或元件必须具有特定的方位，以特定的方位构造和操作，因此不能理解为对本发明的限制。For the convenience of description, if the words "up", "down", "left" and "right" appear in the present invention, it only means that they are consistent with the directions of up, down, left and right in the drawings themselves, and do not limit the structure. It is for the convenience of describing the present invention and simplifying the description, but does not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
正如背景技术所介绍的，现有技术中目前国内外比较成熟的竖向预制承重构件的钢筋连接技术主要有两种：套筒灌浆连接和浆锚搭接连接。套筒灌浆连接是指在预制混凝土构件中预埋的金属套筒中插入钢筋并灌注水泥基灌浆料而实现的钢筋连接方式。浆锚搭接连接是指在预制混凝土构件中采用特殊工艺制成的孔道中插入需搭接的钢筋，并灌注水泥基灌浆料而实现的钢筋搭接连接方式。但这两种方法施工工艺复杂，灌浆的密实性不易检验，容易成为质量隐患。专利“灌芯叠合装配式钢筋混凝土剪力墙结构的建造方法”(ZL201210399425)提供一种竖向剪力墙的拼接方法，即在构件内预留竖向贯通孔以实现上下层竖向构件钢筋的贯通连接。但该方法的钢筋连接方式依然采用了套筒连接的方式。因此，需要开发一种简易实用安全可靠的连接方法十分必要，为了解决如上的技术问题，本申请提出了一种装配式整体式混凝土构件及制作方法。As introduced in the background technology, there are mainly two types of reinforcement connection technologies for vertical prefabricated load-bearing members that are relatively mature at home and abroad in the prior art: sleeve grouting connection and grout-anchor lap connection. Sleeve grouting connection refers to the steel bar connection method realized by inserting steel bars into metal sleeves embedded in precast concrete components and pouring cement-based grouting materials. Grout-anchor lap joint refers to the steel bar lap joint connection method that is realized by inserting the steel bar to be lapped in the channel made by special process in the precast concrete member and pouring cement-based grouting material. However, the construction process of these two methods is complicated, and the compactness of grouting is not easy to test, which is likely to become a quality hidden danger. The patent "Construction method of reinforced concrete shear wall structure with pouring and superimposed assembly" (ZL201210399425) provides a splicing method for vertical shear walls, that is, vertical through holes are reserved in the components to realize the vertical components of the upper and lower layers. Through connection of steel bars. However, the steel bar connection method of this method still adopts the sleeve connection method. Therefore, it is very necessary to develop a simple, practical, safe and reliable connection method. In order to solve the above technical problems, this application proposes a prefabricated monolithic concrete component and a manufacturing method.
本申请的一种典型的实施方式中，本发明的目的在于提出一种新的装配式整体式混凝土构件及竖向钢筋连接方法；由于钢筋与混凝土之间有一定黏结力，钢筋将承担的力通过黏结力传递到邻近混凝土中，并进一步依靠黏结力传递给邻近钢筋。为可靠传力，两根钢筋之间必须有足够的搭接长度。In a typical implementation of the present application, the purpose of the present invention is to propose a new assembled integral concrete member and a method for connecting vertical steel bars; It is transmitted to the adjacent concrete through the bonding force, and further depends on the bonding force to the adjacent steel bars. For reliable force transmission, there must be sufficient lap length between the two steel bars.
基于混凝土构件钢筋搭接连接传力的机理，本发明提出一种装配式整体式混凝土构件，包括多个子混凝土构件1，如图1所示，每个子混凝土构件1中设有穿筋孔道2，穿筋孔道之外区域按设计要求配置有竖向钢筋3，相邻的子混凝土构件之间通过插在穿筋孔道内的搭接钢筋4相连；在所述的穿筋孔道内填充有混凝土5，具体的如图2所示；Based on the mechanism of force transmission in the lap joint connection of concrete members, the present invention proposes a prefabricated integral concrete member, which includes a plurality of sub-concrete members 1, as shown in Figure 1, each sub-concrete member 1 is provided with a reinforcement tunnel 2, The area outside the reinforcement tunnel is configured with vertical steel bars 3 according to the design requirements, and the adjacent sub-concrete members are connected by overlapping steel bars 4 inserted in the reinforcement tunnel; the concrete 5 is filled in the reinforcement tunnel , specifically as shown in Figure 2;
在图3中给出了两个子混凝土构件相邻的结构示意图。A schematic diagram of the adjacent structure of two sub-concrete components is given in Fig. 3 .
进一步的，上述所述的装配式整体式混凝土构件中，子混凝土构件中的穿筋孔道贯穿其顶面和底面；所述的搭接钢筋的两端分别插在相邻的两个子混凝土构件中，实现相邻子混凝土构件的连接。Further, in the above-mentioned prefabricated monolithic concrete member, the reinforcement channel in the sub-concrete member runs through its top surface and bottom surface; the two ends of the overlapping steel bars are respectively inserted into two adjacent sub-concrete members , to realize the connection of adjacent sub-concrete components.
进一步的，上述所述的装配式整体式混凝土构件中，所述的竖向钢筋贴近孔道内壁位置固定。Further, in the prefabricated monolithic concrete member mentioned above, the vertical reinforcement is fixed close to the inner wall of the tunnel.
进一步的，搭接钢筋与预制构件内竖向钢筋的数量和规格一致，在图1环绕图2中，竖向钢筋5的数量是6个，搭接钢筋4的数量也是6个；搭接钢筋4位置与子混凝土构件内竖向钢筋5贴紧，方向竖直向上，伸入穿筋孔道内搭接钢筋的长度需大于规范规定的搭接长度，而预留向上插入上一节子混凝土构件穿筋孔道的搭接钢筋的长度也需大于规范规定的搭接长度。Further, the number and specification of the vertical reinforcement in the prefabricated component are the same as those of the overlapping reinforcement. In Figure 1 surrounding Figure 2, the number of vertical reinforcement 5 is 6, and the number of overlapping reinforcement 4 is also 6; 4 The position is close to the vertical steel bar 5 in the sub-concrete member, and the direction is vertically upward. The length of the lapped steel bar extending into the reinforcement tunnel must be greater than the lap length specified in the code, and it is reserved for insertion into the previous sub-concrete member. The length of the overlapping steel bars in the reinforcement channel must also be greater than the overlapping length specified in the code.
上面所述的装配式整体式混凝土构件具体的制作方法，预制混凝土竖向构件(墙、柱)时，按照一个楼层高度分段预制，通过构件内的竖向钢筋连接为一个整体。为了能够留出上、下层竖向钢筋搭接连接的空间，将预制混凝土竖向构件作成中空的上下贯通，能够穿入竖向钢筋并能灌入混凝土的孔道，如下：The specific manufacturing method of the prefabricated monolithic concrete component mentioned above, when prefabricating concrete vertical components (walls, columns), prefabricates in sections according to the height of a floor, and connects them as a whole through the vertical steel bars in the components. In order to leave space for the lap connection of the upper and lower vertical steel bars, the prefabricated concrete vertical members are made hollow up and down through the holes that can penetrate the vertical steel bars and pour concrete, as follows:
步骤1预制多个子混凝土构件，每个子混凝土构件中预制有穿筋孔道，孔道之外区域按设计要求配置竖向钢筋；Step 1 Prefabricate multiple sub-concrete components, each sub-concrete component is prefabricated with a tunnel for piercing reinforcement, and the area outside the tunnel is configured with vertical reinforcement according to the design requirements;
通过预埋内模板的方法制作预制子混凝土构件的穿筋孔道，子混凝土构件穿筋孔道之外区域按设计要求配置竖向钢筋，为了与孔道内搭接连接的钢筋可靠传力，该竖向钢筋贴近孔道内壁位置固定，用于成型穿筋孔道用内模板的外边线比竖向钢筋内边线位置略小；在浇筑完竖向构件混凝土的初凝之后，终凝之前(大约10小时左右)将内模板抽出，形成中空的穿筋孔道；The reinforced tunnel of the prefabricated sub-concrete member is made by pre-embedding the inner formwork, and the area outside the reinforced tunnel of the sub-concrete member is configured with vertical reinforcement according to the design requirements. The position of the steel bar close to the inner wall of the channel is fixed, and the outer edge of the inner formwork used to form the reinforced channel is slightly smaller than the inner edge of the vertical steel bar; after the initial setting of the vertical component concrete is poured, before the final setting (about 10 hours) Pull out the inner template to form a hollow tunnel through the reinforcement;
由于子混凝土构件按照一个楼层高度分段预制，竖向钢筋在子混凝土构件的顶端和底端断开。Since the sub-concrete members are prefabricated in sections according to a floor height, the vertical reinforcement is broken at the top and bottom ends of the sub-concrete members.
步骤2在拼装现场，将步骤1中预制的子混凝土构件立起；且在穿筋孔道内插入搭接钢筋，并临时固定；Step 2: At the assembly site, erect the sub-concrete components prefabricated in Step 1; and insert overlapping steel bars into the reinforcement tunnel, and temporarily fix them;
所述的搭接钢筋与预制构件内竖向钢筋的数量和规格一致，位置与子混凝土构件内竖向钢筋贴紧，方向竖直向上，伸入穿筋孔道内搭接钢筋的长度需大于规范规定的搭接长度，而预留向上插入上一节子混凝土构件穿筋孔道的搭接钢筋的长度也需大于规范规定的搭接长度。The number and specifications of the overlapping reinforcements are consistent with the vertical reinforcements in the prefabricated components, the position is close to the vertical reinforcements in the sub-concrete components, the direction is vertically upward, and the length of the overlapping reinforcements extending into the reinforcement tunnel must be greater than the specification The specified lap length, and the length of the lap steel bars reserved to insert upward into the reinforcement channel of the previous section of the concrete member must also be greater than the lap length specified in the code.
步骤3向穿筋孔道内浇注微膨胀混凝土；如图2所示；Step 3 pouring micro-expansion concrete into the reinforced tunnel; as shown in Figure 2;
步骤4将上段子混凝土构件吊起，放在步骤3中的子混凝土构件顶部，步骤3中的子混凝土构件的搭接钢筋穿入到上段子混凝土构件的穿筋孔道内；上段预制构件与下段预制构件对齐；然后再向穿筋孔道内浇注微膨胀混凝土；如图3、图4所示；Step 4 lifts the upper sub-concrete member and puts it on the top of the sub-concrete member in step 3, and the lapped steel bars of the sub-concrete member in step 3 penetrate into the reinforcement channel of the upper sub-concrete member; Align the prefabricated components; then pour micro-expansion concrete into the reinforced tunnel; as shown in Figure 3 and Figure 4;
步骤5重复步骤2、3、4，将整个建筑物竖向构件拼装完毕。Step 5 Repeat steps 2, 3, and 4 to complete the assembly of the vertical components of the entire building.
以上所述仅为本申请的优选实施例而已，并不用于限制本申请，对于本领域的技术人员来说，本申请可以有各种更改和变化。凡在本申请的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本申请的保护范围之内。The above descriptions are only preferred embodiments of the present application, and are not intended to limit the present application. For those skilled in the art, there may be various modifications and changes in the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of this application shall be included within the protection scope of this application.
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