CN108385857B - A special-shaped prefabricated prestressed wall connection structure and assembly method - Google Patents
A special-shaped prefabricated prestressed wall connection structure and assembly method Download PDFInfo
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- CN108385857B CN108385857B CN201810109860.7A CN201810109860A CN108385857B CN 108385857 B CN108385857 B CN 108385857B CN 201810109860 A CN201810109860 A CN 201810109860A CN 108385857 B CN108385857 B CN 108385857B
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- 238000000034 method Methods 0.000 title claims abstract description 26
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 78
- 239000010959 steel Substances 0.000 claims abstract description 78
- 230000002787 reinforcement Effects 0.000 claims abstract description 15
- 230000000149 penetrating effect Effects 0.000 claims abstract description 3
- 238000010008 shearing Methods 0.000 claims description 10
- 238000009415 formwork Methods 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 238000004873 anchoring Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 15
- 238000010586 diagram Methods 0.000 description 8
- 239000000758 substrate Substances 0.000 description 3
- 239000011440 grout Substances 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000010412 perfusion Effects 0.000 description 1
- 238000000275 quality assurance Methods 0.000 description 1
- 238000009436 residential construction Methods 0.000 description 1
- 239000002699 waste material Substances 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
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
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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
- E04B1/38—Connections for building structures in general
- E04B1/61—Connections for building structures in general of slab-shaped building elements with each other
- E04B1/6108—Connections for building structures in general of slab-shaped building elements with each other the frontal surfaces of the slabs connected together
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Abstract
本发明公开了一种异形预制预应力墙体连接结构及装配方法，所述的连接结构包括剪力墙板以及预应力墙体，所述的预应力墙体包括基体以及分布在基体周围的连接体，所述的连接体上开设有纵向凹槽，所述的纵向凹槽穿出连接体的顶面、底面以及远离基体的侧面；所述的剪力墙板的一个侧面与所述的纵向凹槽连接，使所述的纵向凹槽形成纵向槽井；所述的基体中分布有穿透基体顶面、底面的预应力钢筋，所述的纵向凹槽中预埋有横穿所述纵向凹槽的横向抗剪钢筋，所述的剪力墙板与预应力墙体之间设置有预埋钢筋，预埋钢筋的一端位于所述的基体中，另一端穿过所述的纵向凹槽并伸入到所述的剪力墙板中。本发明在保证质量的前提下简化了施工过程，降低了施工成本。
The invention discloses a special-shaped prefabricated prestressed wall connection structure and an assembling method. The connection structure includes a shear wall panel and a prestressed wall, and the prestressed wall includes a base and connections distributed around the base. The connecting body is provided with a longitudinal groove, and the longitudinal groove penetrates the top surface, the bottom surface and the side surface away from the base body of the connecting body; The grooves are connected, so that the longitudinal grooves form longitudinal grooves; the base body is distributed with prestressed steel bars penetrating the top and bottom surfaces of the base body, and the longitudinal grooves are pre-embedded in the longitudinal grooves. The transverse shear reinforcement of the groove, the pre-embedded reinforcement is arranged between the shear wall panel and the prestressed wall, one end of the pre-embedded reinforcement is located in the base body, and the other end passes through the longitudinal groove and extend into the shear wall panel. The invention simplifies the construction process and reduces the construction cost on the premise of ensuring the quality.
Description
技术领域technical field
本发明涉及预制装配式混凝土结构与施工技术领域，具体涉及一种异形预制预应力墙体连接结构及装配方法。The invention relates to the technical field of prefabricated prefabricated concrete structures and construction, in particular to a special-shaped prefabricated prestressed wall connection structure and an assembling method.
背景技术Background technique
我国传统的住宅建造方式基本上采用现浇方式，因为该方式在技术方面已比较成熟，但是，现浇结构体系仍存在诸多问题，一是现场施工条件差；二是现场施工产生大量垃圾，材料浪费严重；三是受现场及气候条件限制，施工效率低，施工时间长；四是现场施工对周围环境影响很大。相比之下装配式剪力墙采用工业化的方式来建造，将住宅的部分或全部构件在工厂预先制作完成，然后运输到施工现场，通过可靠的连接方式将构件组装成一体，具有施工周期短，质量稳定可靠，环保节能等优点，能够极大缓解市场压力。The traditional residential construction method in my country basically adopts the cast-in-place method, because this method is relatively mature in technology, but there are still many problems in the cast-in-place structural system. First, the on-site construction conditions are poor; The waste is serious; the third is that the construction efficiency is low and the construction time is long due to the limitation of the site and climatic conditions; the fourth is that the on-site construction has a great impact on the surrounding environment. In contrast, the prefabricated shear wall is built in an industrialized way. Some or all of the components of the house are prefabricated in the factory, and then transported to the construction site. The components are assembled into one through a reliable connection method, which has a short construction period. , stable and reliable quality, environmental protection and energy saving, etc., can greatly relieve market pressure.
但现有的装配式剪力墙结构连接方式大多数为竖向连接，横向连接方式较少，且横向连接多采用现浇混凝土方式，现场湿作业量大，并且需要支模，成本较高，墙板连接处施工复杂，且施工质量不易控制，装配后的剪力墙结构整体力学性能不好。However, most of the existing prefabricated shear wall structures are connected vertically, with fewer horizontal connections, and most of the horizontal connections are cast-in-place concrete, which requires a large amount of wet work on site, and requires formwork, which is costly. The construction of the wall panel connection is complicated, and the construction quality is not easy to control, and the overall mechanical performance of the assembled shear wall structure is not good.
发明内容SUMMARY OF THE INVENTION
本发明的目的在于提供一种异形预制预应力墙体连接结构及装配方法，以解决当下单一的预制装配式剪力墙横向连接方式存在的问题，减少现场湿作业，简化施工过程，降低成本且保证质量。The purpose of the present invention is to provide a special-shaped prefabricated prestressed wall connection structure and an assembling method, so as to solve the problems existing in the current single prefabricated prefabricated shear wall lateral connection mode, reduce on-site wet operations, simplify the construction process, reduce costs and Quality assurance.
为了实现上述任务，本发明采用以下技术方案：In order to realize the above-mentioned tasks, the present invention adopts the following technical solutions:
一种异形预制预应力墙体连接结构，包括剪力墙板以及预应力墙体，所述的预应力墙体包括基体以及分布在基体周围的连接体，所述的连接体上开设有纵向凹槽，所述的纵向凹槽穿出连接体的顶面、底面以及远离基体的侧面；所述的剪力墙板的一个侧面与所述的纵向凹槽连接，使所述的纵向凹槽形成纵向槽井；所述的基体中分布有穿透基体顶面、底面的预应力钢筋，所述的纵向凹槽中预埋有横穿所述纵向凹槽的横向抗剪钢筋，所述的剪力墙板与预应力墙体之间设置有预埋钢筋，预埋钢筋的一端位于所述的基体中，另一端穿过所述的纵向凹槽并伸入到所述的剪力墙板中。A special-shaped prefabricated prestressed wall connection structure includes shear wall panels and prestressed walls, the prestressed wall includes a base body and connecting bodies distributed around the base body, and longitudinal recesses are opened on the connecting body The longitudinal groove penetrates the top surface, the bottom surface and the side surface away from the base body of the connecting body; one side surface of the shear wall panel is connected with the longitudinal groove, so that the longitudinal groove is formed Longitudinal groove well; the base body is distributed with prestressed steel bars penetrating the top surface and bottom surface of the base body, the longitudinal grooves are pre-embedded with transverse shear steel bars that traverse the longitudinal grooves, and the shear Pre-embedded steel bars are arranged between the force wall panel and the prestressed wall. One end of the pre-embedded steel bars is located in the base body, and the other end passes through the longitudinal groove and extends into the shear wall panel. .
进一步地，所述的纵向凹槽两侧的连接体上沿纵向凹槽的长度方向对称开设有卡槽，所述的剪力墙板的侧面上设置有一对与所述卡槽配合的卡沿。Further, the connecting bodies on both sides of the longitudinal groove are symmetrically provided with clamping grooves along the length direction of the longitudinal groove, and a pair of clamping edges matched with the clamping grooves are arranged on the side surfaces of the shear wall panel. .
进一步地，所述的纵向凹槽内部分布有与所述预应力钢筋平行的纵向通长钢筋，纵向通长钢筋与所述的横向抗剪钢筋绑扎连接。Further, longitudinal through-length steel bars parallel to the prestressed steel bars are distributed inside the longitudinal groove, and the longitudinal through-length steel bars are bound and connected with the transverse shear-resistant steel bars.
进一步地，所述的剪力墙板的侧面上分布有通向剪力墙板内部的灌浆套筒，所述的预埋钢筋的端部伸入到所述的灌浆套筒内。Further, a grouting sleeve leading to the interior of the shear wall panel is distributed on the side surface of the shear wall panel, and the end of the pre-embedded steel bar extends into the grouting sleeve.
进一步地，所述的基体周围的连接体间隔设置四个，使所述的预应力墙体整体呈“十”字形结构。Further, four connecting bodies are arranged at intervals around the base body, so that the prestressed wall body has a "cross"-shaped structure as a whole.
进一步地，所述的剪力墙板与所述的连接体的高度、厚度均相同。Further, the height and thickness of the shear wall panel and the connecting body are the same.
进一步地，所述的预埋钢筋与所述的预应力钢筋垂直，所述的横向抗剪钢筋分别与所述的纵向通长钢筋、预埋钢筋垂直。Further, the pre-embedded steel bars are perpendicular to the pre-stressed steel bars, and the transverse shearing steel bars are respectively perpendicular to the longitudinal through-length steel bars and the pre-embedded steel bars.
本发明进一步公开了一种异形预制预应力墙体连接结构的装配方法，包括以下步骤：The invention further discloses an assembly method of a special-shaped prefabricated prestressed wall connection structure, comprising the following steps:
步骤1，根据建筑结构设计要求，确定剪力墙板和预应力墙体上各个部件的规格尺寸；Step 1: Determine the specifications and dimensions of each component on the shear wall panel and the prestressed wall according to the design requirements of the building structure;
步骤2，在工厂预制剪力墙板，在制作过程中预先在剪力墙板上留好灌浆套筒的灌浆口和排浆口通道；在工厂预制预应力墙体，采用先张法施加预应力；Step 2: Prefabricate the shear wall panels in the factory, and leave the grouting opening and the grouting outlet channel of the grouting sleeve on the shear wall panels in advance during the production process; stress;
步骤3，剪力墙板和所述预应力墙体连接时，将每根预埋钢筋对应插在一个灌浆套筒内，使所述卡槽和卡沿紧密接触；同法依次完成每个剪力墙板和预应力墙体的连接；Step 3: When the shear wall panel and the prestressed wall are connected, insert each pre-embedded steel bar into a grouting sleeve correspondingly, so that the card groove and the card edge are in close contact; the same method is used to complete each shear in turn. Connection of force wall panels and prestressed walls;
步骤4，在剪力墙板和预应力墙体上的纵向槽井中浇筑混凝土，无需支模；所有纵向槽井浇筑完毕后，依次在每个剪力墙板上通过灌浆口向灌浆套筒内灌浆，直至完成每个剪力墙板上的灌浆作业，完成。Step 4: Concrete is poured in the longitudinal grooves on the shear wall panels and prestressed walls, without the need for formwork; after all the longitudinal grooves are poured, the grouting sleeves are poured into the grouting sleeves through the grouting openings on each shear wall panel in turn. Grout until the grouting on each shear wall panel is complete, complete.
进一步地，步骤1中所述的规格尺寸包括：剪力墙板的尺寸，预应力墙体尺寸，灌浆套筒的规格和间距，预埋钢筋的直径、间距、预埋长度和锚固长度，预应力钢筋的直径、间距，纵向通长钢筋的直径、间距，横向抗剪钢筋的直径、间距，卡沿和卡槽的尺寸。Further, the specifications and dimensions described in step 1 include: the size of the shear wall panel, the size of the prestressed wall, the size and spacing of the grouting sleeve, the diameter, spacing, embedded length and anchorage length of the embedded steel bars, Diameter and spacing of stress reinforcement bars, diameter and spacing of longitudinal full-length reinforcement bars, diameter and spacing of transverse shear reinforcement bars, and dimensions of clip edges and slots.
本发明与现有技术相比具有以下技术特点：Compared with the prior art, the present invention has the following technical characteristics:
1.本发明为解决当下单一的预制装配式剪力墙横向连接方式提供一种新结构与方法，有效地简化了施工工序，实现预制装配式剪力墙横向快速连接；1. The present invention provides a new structure and method for solving the current single lateral connection mode of prefabricated shear walls, which effectively simplifies the construction process and realizes the horizontal quick connection of prefabricated shear walls;
2.异形预制预应力墙体核心区混凝土中受力钢筋采用预应力钢筋，施加预应力，有利于改善剪力墙受力性能，提高抗震能力；2. The prestressed steel bars in the concrete in the core area of the special-shaped prefabricated prestressed wall are prestressed steel bars and prestressed, which is conducive to improving the mechanical performance of the shear wall and improving the seismic capacity;
3.墙体与墙板连接处形成封闭槽井，后浇混凝土时不需要模板，有利于提高施工速度，降低生产成本；3. A closed slot is formed at the connection between the wall and the wall panel, and no formwork is required when concrete is poured later, which is beneficial to improve the construction speed and reduce the production cost;
4.封闭槽井内沿设置的纵向通长钢筋与沿厚度方向横向抗剪钢筋绑扎连接，组成钢筋网片，为后浇混凝土提供强有力的约束，改善后浇混凝土的受力性能；4. The longitudinal full-length steel bars set in the closed groove well are bound and connected with the transverse shearing steel bars along the thickness direction to form a steel mesh sheet, which provides strong constraints for the post-cast concrete and improves the mechanical performance of the post-cast concrete;
5.墙体与墙板连接处接触面通过卡槽和卡沿配合形成止漏缝，可有效避免后浇混凝土时浆液从接触面处流出；5. The contact surface of the connection between the wall and the wall panel is formed by the slot and the edge to form a leak-proof joint, which can effectively prevent the slurry from flowing out of the contact surface when the concrete is poured later;
6.本发明的预制预应力墙体可以视实际工程需要设置为如十字形、一字型、L形、T形等异形结构，满足不同的施工需求。6. The prefabricated prestressed wall of the present invention can be set to special-shaped structures such as cross-shaped, inline-shaped, L-shaped, T-shaped, etc., depending on the actual engineering needs, to meet different construction requirements.
附图说明Description of drawings
图1为本发明的异形预制预应力墙体连接结构的装配示意图；Fig. 1 is the assembly schematic diagram of the special-shaped prefabricated prestressed wall connection structure of the present invention;
图2为预应力墙体部分的结构示意图；Fig. 2 is the structural schematic diagram of the prestressed wall part;
图3为剪力墙板部分的结构示意图；Fig. 3 is the structural representation of shear wall panel part;
图4为图1所示结构的横断面结构示意图；Fig. 4 is the cross-sectional structural schematic diagram of the structure shown in Fig. 1;
图5(a)为预应力墙体和剪力墙板装配过程示意图(装配前两个剪力墙板时)；Figure 5(a) is a schematic diagram of the assembly process of the prestressed wall and the shear wall panel (when the first two shear wall panels are assembled);
图5(b)为预应力墙体和剪力墙板装配过程示意图(装配后两个剪力墙板时)；Figure 5(b) is a schematic diagram of the assembly process of the prestressed wall and the shear wall panel (when the two shear wall panels are assembled);
图6(a)为基体周围有两个连接体呈“一”字形时的结构示意图；Figure 6(a) is a schematic diagram of the structure when there are two connectors in the shape of "one" around the substrate;
图6(b)为基体周围有两个连接体呈“L”形时的结构示意图；Figure 6(b) is a schematic diagram of the structure when there are two connectors around the substrate in an "L" shape;
图6(c)为基体周围有三个连接体呈“T”形时的结构示意图；Figure 6(c) is a schematic diagram of the structure when there are three connectors in a "T" shape around the substrate;
图中标号代表：1—剪力墙板，2—预应力墙体，201—基体，202—连接体，3—灌浆套筒，4—预埋钢筋，5—预应力钢筋，6—纵向通长钢筋，7—横向抗剪钢筋，8—纵向槽井，9—止漏缝，10—纵向凹槽，11—卡沿，12—卡槽。The numbers in the figure represent: 1—shear wall panel, 2—prestressed wall, 201—base body, 202—connector, 3—grouting sleeve, 4—pre-embedded steel bar, 5—prestressed steel bar, 6—longitudinal pass through Long steel bar, 7-transverse shearing steel bar, 8-longitudinal groove, 9-stop leakage, 10-longitudinal groove, 11-card edge, 12-card groove.
具体实施方式Detailed ways
如图所示，本发明公开了一种异形预制预应力墙体连接结构，包括剪力墙板1以及预应力墙体2，所述的预应力墙体2包括基体201以及分布在基体201周围的连接体202，所述的连接体202上开设有纵向凹槽10，所述的纵向凹槽10穿出连接体202的顶面、底面以及远离基体201的侧面；所述的剪力墙板1的一个侧面与所述的纵向凹槽10连接，使所述的纵向凹槽10形成纵向槽井8；所述的基体201中分布有穿透基体201顶面、底面的预应力钢筋5，所述的纵向凹槽10中预埋有横穿所述纵向凹槽10的横向抗剪钢筋7，所述的剪力墙板1与预应力墙体2之间设置有预埋钢筋4，预埋钢筋4的一端位于所述的基体201中，另一端穿过所述的纵向凹槽10并伸入到所述的剪力墙板1中。As shown in the figure, the present invention discloses a special-shaped prefabricated prestressed wall connection structure, including a shear wall panel 1 and a prestressed wall 2, and the prestressed wall 2 includes a base body 201 and is distributed around the base body 201. The connecting body 202, the connecting body 202 is provided with a longitudinal groove 10, and the longitudinal groove 10 penetrates the top surface, the bottom surface and the side away from the base body 201 of the connecting body 202; the shear wall panel One side of the 1 is connected to the longitudinal groove 10, so that the longitudinal groove 10 forms a longitudinal groove 8; The longitudinal grooves 10 are pre-embedded with transverse shear reinforcement bars 7 crossing the longitudinal grooves 10, and pre-embedded reinforcement bars 4 are arranged between the shear wall panels 1 and the prestressed walls 2. One end of the embedded steel bar 4 is located in the base body 201 , and the other end passes through the longitudinal groove 10 and extends into the shear wall panel 1 .
本发明中的预应力墙体2以及剪力墙板1均为预制结构，其中，预应力墙体2由两部分构成，其一是位于中部的基体201，其二是围绕基体201设置的连接体202，一个连接体202对应一个剪力墙板1；所述的连接体202可以视实际需求设置一个或多个以构成不同的异形结构，如图6(a)、图6(b)和图6(c)所示，其中图6(a)、图6(b)中连接体202均设置了两个，如图6(a)整体为“一”字形结构，图6(b)为“L”形结构；图6(c)中连接体202设置了三个，为“T”形结构。本实施例中以图1为例，连接体202在基体201周围间隔设置了四个，使所述的预应力墙整体呈“十”字形结构。对基体201和连接体202的具体形状没有固定要求，优选地，所述的连接体202为矩形体结构，而基体201则可以为四个侧面大小相等的矩形体结构，当设置四个连接体202时，基体201的每一个侧面连接一个连接体202。The prestressed wall body 2 and the shear wall panel 1 in the present invention are both prefabricated structures, wherein the prestressed wall body 2 is composed of two parts, one is the base body 201 located in the middle, and the other is the connection arranged around the base body 201 body 202, one connecting body 202 corresponds to one shear wall panel 1; one or more of the connecting bodies 202 can be set according to actual needs to form different special-shaped structures, as shown in Figure 6(a), Figure 6(b) and As shown in FIG. 6(c), two connectors 202 are provided in FIG. 6(a) and FIG. 6(b). As shown in FIG. 6(a), the whole is a “one” shape structure, and FIG. "L"-shaped structure; in Fig. 6(c), three connectors 202 are provided, which is a "T"-shaped structure. In this embodiment, taking FIG. 1 as an example, four connecting bodies 202 are arranged around the base body 201 at intervals, so that the prestressed wall has a "cross"-shaped structure as a whole. There is no fixed requirement for the specific shapes of the base body 201 and the connecting body 202. Preferably, the connecting body 202 is a rectangular body structure, and the base body 201 can be a rectangular body structure with four sides of equal size. When four connecting bodies are provided At 202, each side surface of the base body 201 is connected to a connecting body 202.
为了便于后续的混凝土浇筑和整体结构的牢固性，本方案中在所述的连接体202上开设有纵向凹槽10，纵向凹槽10的长度(高度)方向即为所述连接体202的高度方向，在实际使用时，所述的长度方向即为垂直于地面的方向。所述的纵向凹槽10为三向透式结构，即纵向凹槽10的两端穿出连接体202的顶面、底面，并且其一个侧面穿出连接体202上距离基体201最远的一个侧面。所述的剪力墙板1安装在预应力墙体2的纵向凹槽10的侧面，并与所述的连接体202共面，这样剪力墙板1封堵住了所述纵向凹槽10侧面的开口，使得所述纵向凹槽10形成纵向槽井8，此时所述的纵向凹槽10只有上下两端通透，且横截面为矩形结构；所述的纵向槽井8用于灌注混凝土。所述的剪力墙板1与所述的连接体202的高度、厚度均相同。本实施例中，优选地，所述的纵向凹槽10的横截面尺寸为200mm×100mm。In order to facilitate the subsequent concrete pouring and the firmness of the overall structure, in this solution, the connecting body 202 is provided with a longitudinal groove 10 , and the length (height) direction of the longitudinal groove 10 is the height of the connecting body 202 In actual use, the length direction is the direction perpendicular to the ground. The longitudinal groove 10 is a three-way through-type structure, that is, the two ends of the longitudinal groove 10 penetrate the top surface and the bottom surface of the connecting body 202, and one side surface of the longitudinal groove 10 penetrates the one on the connecting body 202 that is farthest from the base body 201. side. The shear wall panel 1 is installed on the side of the longitudinal groove 10 of the prestressed wall body 2, and is coplanar with the connecting body 202, so that the shear wall panel 1 blocks the longitudinal groove 10. The opening on the side makes the longitudinal groove 10 form a longitudinal groove 8. At this time, only the upper and lower ends of the longitudinal groove 10 are transparent, and the cross-section is a rectangular structure; the longitudinal groove 8 is used for perfusion. concrete. The height and thickness of the shear wall panel 1 and the connecting body 202 are the same. In this embodiment, preferably, the cross-sectional size of the longitudinal groove 10 is 200 mm×100 mm.
本方案中在所述的剪力墙板1以及预应力墙体2中的不同部位预设有钢筋，以保证本连接结构的整体力学性能。具体地，所述的预应力墙体2的基体201中分布有多根预应力钢筋5，预应力钢筋5的布设方向为所述基体201的高度方向，多根预应力钢筋5之间相互平行，且其两端穿出基体201的顶面、底面；本实施例中，所述的预应力钢筋5设置4根，每一根的直径至少为20mm；在纵向凹槽10中间隔分布有横向抗剪钢筋7，横向抗剪钢筋7横穿所述的纵向凹槽10，即横向抗剪钢筋7的布设方向为所述纵向凹槽10的宽度方向，且横向抗剪钢筋7的长度大于所述纵向凹槽10的宽度；所述的横向抗剪钢筋7的直径至少为10mm，长度至少为160mm，以有效加强连接处的抗剪能力。In this scheme, steel bars are preset in different parts of the shear wall panel 1 and the prestressed wall body 2 to ensure the overall mechanical performance of the connection structure. Specifically, a plurality of prestressed steel bars 5 are distributed in the base body 201 of the prestressed wall 2 , the layout direction of the prestressed steel bars 5 is the height direction of the base body 201 , and the plurality of prestressed steel bars 5 are parallel to each other. , and its two ends penetrate the top and bottom surfaces of the base body 201; in this embodiment, the prestressed steel bars 5 are provided with 4 pieces, each with a diameter of at least 20mm; Shear reinforcement bars 7, transverse shear reinforcement bars 7 traverse the longitudinal groove 10, that is, the arrangement direction of the transverse shear reinforcement bars 7 is the width direction of the longitudinal groove 10, and the length of the transverse shear reinforcement bars 7 is greater than the length of the transverse shear reinforcement bars 7. The width of the longitudinal groove 10; the diameter of the transverse shear reinforcement 7 is at least 10mm and the length is at least 160mm, so as to effectively strengthen the shear resistance of the joint.
所述的剪力墙板1与预应力墙体2之间采用预埋钢筋4实现二者的连接，具体地，所述的预埋钢筋4的一端伸入到所述的基体201中，另一端穿过纵向凹槽10，留有至少200mm的锚固长度，这部分伸入到所述的剪力墙板1中，这样就将剪力墙板1与所述的连接体202连接在了一起。Between the shear wall panel 1 and the prestressed wall 2, the embedded steel bar 4 is used to realize the connection between the two. Specifically, one end of the embedded steel bar 4 extends into the base body 201, and the other One end passes through the longitudinal groove 10, leaving an anchoring length of at least 200mm, and this part extends into the shear wall panel 1, so that the shear wall panel 1 and the connecting body 202 are connected together .
可选地，如图2、图3所示，所述的纵向凹槽10两侧的连接体202上沿纵向凹槽10的长度方向对称开设有卡槽12，所述的剪力墙板1的侧面上设置有一对与所述卡槽12配合的卡沿11；即所述的卡槽12开设在纵向凹槽10的外侧壁上，而所述的卡沿11则位于剪力墙板1侧面上的两侧，当剪力墙板1和预应力墙体2对接时，所述的卡槽12插入到所述的卡沿11内部，连接处形成类“Z”字形的止漏缝9，可以有效避免后浇混凝土时浆液从连接处流出。优选地，沿所述剪力墙板1厚度方向上，所述卡沿11的厚度为20mm，垂直于厚度方向，所述卡沿11的长度为30mm；所述的卡槽12的尺寸与卡沿11对应一致。Optionally, as shown in FIG. 2 and FIG. 3 , the connecting bodies 202 on both sides of the longitudinal groove 10 are symmetrically provided with clamping grooves 12 along the length direction of the longitudinal groove 10 , and the shear wall panel 1 A pair of card edges 11 that cooperate with the card slots 12 are arranged on the side of the cam; that is, the card slots 12 are opened on the outer side wall of the longitudinal groove 10, and the card edges 11 are located on the shear wall panel 1 On both sides of the side, when the shear wall panel 1 and the prestressed wall 2 are butted together, the card slot 12 is inserted into the card edge 11, and the joint forms a "Z"-shaped leak-proof joint 9 , which can effectively prevent the slurry from flowing out of the joint when the concrete is poured. Preferably, along the thickness direction of the shear wall panel 1, the thickness of the clip edge 11 is 20mm, and perpendicular to the thickness direction, the length of the clip edge 11 is 30mm; the size of the clip slot 12 is the same as that of the clip board. Correspondingly along 11.
为进一步改善剪力墙板1和预应力墙板的受力性能，提高抗震能力，本方案中在纵向凹槽10内部分布有与所述预应力钢筋5平行的纵向通长钢筋6，纵向通长钢筋6与所述的横向抗剪钢筋7绑扎连接，纵向通长钢筋6的直径至少为10mm；当多个本发明的连接结构上下布设时，在纵向上所述的纵向槽井8同轴，相邻的纵向槽井8中布设的纵向通长钢筋6之间机械连接，例如搭接。纵向通长钢筋6和横向抗剪钢筋7绑扎连接组成钢筋网片，为后浇混凝土提供强有力的约束。In order to further improve the mechanical performance of the shear wall panel 1 and the prestressed wall panel and improve the seismic capacity, in this scheme, longitudinally long steel bars 6 parallel to the prestressed steel bars 5 are distributed in the longitudinal groove 10, and the longitudinal The long steel bars 6 are bound and connected with the transverse shearing steel bars 7, and the diameter of the longitudinal long steel bars 6 is at least 10 mm; when a plurality of connection structures of the present invention are arranged up and down, the longitudinal grooves 8 described in the longitudinal direction are coaxial. , mechanical connection between the longitudinally long steel bars 6 arranged in the adjacent longitudinal groove wells 8, such as lap joints. Longitudinal full-length steel bars 6 and transverse shearing steel bars 7 are bound and connected to form a steel mesh sheet, which provides strong restraint for post-cast concrete.
进一步地，剪力墙板1的侧面上分布有通向剪力墙板1内部的灌浆套筒3，灌浆套筒3的布设方向垂直于所述的预应力钢筋5，与所述的预埋钢筋4同轴设置，所述的预埋钢筋4的端部伸入到所述的灌浆套筒3内，由此将剪力墙板1以及预应力墙体2连接起来。另外，在布设时，所述的预埋钢筋4与所述的预应力钢筋5垂直，所述的横向抗剪钢筋7分别与所述的纵向通长钢筋6、预埋钢筋4垂直。Further, a grouting sleeve 3 leading to the interior of the shear wall panel 1 is distributed on the side of the shear wall panel 1, and the arrangement direction of the grouting sleeve 3 is perpendicular to the prestressed steel bar The steel bars 4 are coaxially arranged, and the ends of the embedded steel bars 4 protrude into the grouting sleeve 3 , thereby connecting the shear wall panel 1 and the prestressed wall body 2 . In addition, when laying, the pre-embedded steel bars 4 are perpendicular to the pre-stressed steel bars 5 , and the transverse shearing steel bars 7 are respectively perpendicular to the longitudinal through-length steel bars 6 and the pre-embedded steel bars 4 .
本方案中，剪力墙板1以及预应力墙体2先通过预埋钢筋4插入到所述的灌浆套筒3装配成型，然后在形成的纵向槽井8中浇筑混凝土，最后进行灌浆完成最终的连接。In this scheme, the shear wall panel 1 and the prestressed wall body 2 are first assembled and formed by inserting the embedded steel bar 4 into the grouting sleeve 3, and then pouring concrete in the formed longitudinal groove 8, and finally grouting to complete the final Connection.
在上述技术方案的基础上，本发明进一步提供了一种异形预制预应力墙体2连接结构的装配方法，包括以下步骤：On the basis of the above technical solutions, the present invention further provides a method for assembling a special-shaped prefabricated prestressed wall 2 connection structure, comprising the following steps:
步骤1，根据建筑结构设计要求，确定剪力墙板1和预应力墙体2上各个部件的规格尺寸，包括：剪力墙板1的尺寸，预应力墙体2尺寸，灌浆套筒3的规格和间距，预埋钢筋4的直径、间距、预埋长度和锚固长度，预应力钢筋5的直径、间距，纵向通长钢筋6的直径、间距，横向抗剪钢筋7的直径、间距，卡沿11和卡槽12的尺寸；Step 1: Determine the specifications and dimensions of each component on the shear wall panel 1 and the prestressed wall 2 according to the building structure design requirements, including: the size of the shear wall panel 1, the size of the prestressed wall 2, and the size of the grouting sleeve 3. Specifications and spacing, diameter, spacing, embedded length and anchoring length of pre-embedded steel bars 4, diameter and spacing of pre-stressed steel bars 5, diameter and spacing of longitudinally long steel bars 6, diameter and spacing of transverse shearing steel bars 7, clamps Dimensions along 11 and slot 12;
步骤2，按照确定好的剪力墙板1的尺寸，在工厂预制剪力墙板1(包括该墙板上的各个钢筋)，在制作过程中预先在剪力墙板1上留好灌浆套筒3的灌浆口和排浆口通道，以防止浇筑过程中所述的通道被混凝土堵住；按照确定好的预应力墙体2的尺寸，在工厂预制预应力墙体2(包括该墙体上的各个钢筋)，采用先张法施加预应力；其中横向抗剪钢筋7在浇筑混凝土之前需要固定好位置，纵向通长钢筋6在拆模后进行绑扎；Step 2, according to the determined size of the shear wall panel 1, prefabricate the shear wall panel 1 (including the steel bars on the wall panel) in the factory, and leave a grouting sleeve on the shear wall panel 1 in advance during the production process. The grouting port and the grout outlet channel of the cylinder 3 are used to prevent the channel from being blocked by concrete during the pouring process; according to the determined size of the prestressed wall 2, the prestressed wall 2 (including the The prestressing method is applied by the pre-tensioning method; wherein the transverse shearing steel bars 7 need to be fixed in position before the concrete is poured, and the longitudinal full-length steel bars 6 are bound after the formwork is removed;
步骤3，剪力墙板1和所述预应力墙体2连接时，将每根预埋钢筋4对应插在一个灌浆套筒3内，保证所述卡槽12和卡沿11紧密接触(即二者之间不留间隙)；同法依次完成每个剪力墙板1和预应力墙体2的连接；Step 3, when the shear wall panel 1 and the prestressed wall body 2 are connected, each embedded steel bar 4 is correspondingly inserted into a grouting sleeve 3 to ensure that the clamping groove 12 and the clamping edge 11 are in close contact (ie, There is no gap between the two); the same method is used to complete the connection of each shear wall panel 1 and the prestressed wall 2 in turn;
步骤4，在剪力墙板1和预应力墙体2上的纵向槽井8中浇筑混凝土，无需支模；所有纵向槽井8浇筑完毕后，依次在每个剪力墙板1上通过灌浆口向灌浆套筒3内灌浆，直至完成每个剪力墙板1上的灌浆作业，完成。Step 4: Concrete is poured in the longitudinal grooves 8 on the shear wall panels 1 and the prestressed walls 2 without the need for formwork; after all the longitudinal grooves 8 are poured, grouting is performed on each shear wall panel 1 in turn. Grouting in the mouth grouting sleeve 3 until the grouting operation on each shear wall panel 1 is completed.
需要说明的是，本发明不仅适用于上述十字形节点连接，同样对“一”字型、“L”型和“T”型节点连接适用，具体实施方法同上所述。It should be noted that the present invention is not only applicable to the above-mentioned cross-shaped node connection, but also applicable to the "one"-shaped, "L"-shaped and "T"-shaped node connection, and the specific implementation method is the same as the above.
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| CN107060132A (en) * | 2017-03-24 | 2017-08-18 | 广州大学 | A kind of prefabricated assembled shear wall |
| CN207919759U (en) * | 2018-02-06 | 2018-09-28 | 西安建筑科技大学 | A kind of precast prestressed connecting structure of wall of abnormity |
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