阅读说明：本技术 肋条横向布置型轻型钢板-混凝土组合剪力墙及连接方法 (Light steel plate-concrete combined shear wall with transversely arranged ribs and connecting method ) 是由 郭子雄 许力 刘阳 叶勇 于 2021-06-18 设计创作，主要内容包括：本发明提供了肋条横向布置型轻型钢板-混凝土组合剪力墙,包括：带肋轻型钢板、混凝土、自攻螺钉以及边缘约束构件；所述带肋轻型钢板为平行且相向设置的两块,每一块所述带肋轻型钢板分别包括至少两块子钢板,所述两块子钢板沿着墙体的高度方向设置并通过自攻螺钉固定连接；所述边缘约束构件设置在带肋轻型钢板沿着长度方向的两端,并通过自攻螺钉与带肋轻型钢板固定连接使之围成封闭条形截面,所述混凝土填充于所述条形截面中。本发明提出了构造简单、材料利用充分、连接方便可靠的肋条横向布置型轻型钢板-混凝土组合剪力墙及连接方法。(The invention provides a light steel plate-concrete combined shear wall with transversely arranged ribs, which comprises: ribbed lightweight steel plate, concrete, self-tapping screw, and edge-constraining member; the ribbed light steel plates are arranged in parallel and in opposite directions, each ribbed light steel plate comprises at least two sub steel plates, and the two sub steel plates are arranged along the height direction of the wall body and are fixedly connected through self-tapping screws; the edge restraining members are arranged at two ends of the ribbed light steel plate along the length direction, are fixedly connected with the ribbed light steel plate through self-tapping screws to form a closed strip-shaped section in an enclosing mode, and the concrete is filled in the strip-shaped section. The invention provides a rib transverse arrangement type light steel plate-concrete combined shear wall and a connecting method, wherein the rib transverse arrangement type light steel plate-concrete combined shear wall is simple in structure, full in material utilization and convenient and reliable in connection.)

1. Rib transverse arrangement type light steel sheet-concrete combination shear wall, its characterized in that includes: ribbed lightweight steel plate, concrete, self-tapping screw, and edge-constraining member;

the ribbed light steel plates are arranged in parallel and in opposite directions, each ribbed light steel plate comprises at least two sub steel plates, and the two sub steel plates are arranged along the height direction of the wall body and are fixedly connected through self-tapping screws;

the edge restraining members are arranged at two ends of the ribbed light steel plate along the length direction, are fixedly connected with the ribbed light steel plate through self-tapping screws to form a closed strip-shaped section in an enclosing mode, and the concrete is filled in the strip-shaped section.

2. The light steel plate-concrete combined shear wall with transverse ribs according to claim 1, wherein: the sub-steel plate is a closed-end profiled steel plate, a reduced-end profiled steel plate or a steel plate with strip-shaped ribs, and the thickness of the sub-steel plate is 0.75-1.8 mm.

3. The light steel plate-concrete combined shear wall with transverse ribs according to claim 2, wherein: the ribs are arranged along the lateral direction of the sub-steel plates.

4. The light steel plate-concrete combined shear wall with transverse ribs according to claim 1, wherein: the edge restraining member is a rectangular steel tube.

5. The light steel plate-concrete combined shear wall with transverse ribs according to claim 4, wherein: two longitudinal connecting plates are welded on a steel plate on one side of the rectangular steel pipe, the distance between the connecting plates is equal to the thickness of a wall body of the shear wall, a plurality of strip-shaped notches are formed in the longitudinal connecting plates along the height direction of the wall, and the positions of the notches correspond to the positions of ribs of the sub-steel plates.

6. The light steel plate-concrete combined shear wall with transverse ribs according to claim 5, wherein: the ribs are inserted into the notches, so that the ribbed light steel plate and the rectangular steel pipe are provided with overlapped parts, and the overlapped parts are connected through self-tapping screws to form a closed strip-shaped section.

7. The light steel plate-concrete combined shear wall with transverse ribs according to claim 1, wherein: the edge restraining member is a reinforcement cage and a wrapped steel plate.

8. The light steel plate-concrete combined shear wall with transverse ribs according to claim 7, wherein: the steel plate of borduring is channel-section steel or cold-formed U shaped steel, and it has a plurality of rectangular shape incisions to open on its edge of a wing border wall direction of height, and notched position corresponds with the rib position of sub-steel sheet.

9. The light steel plate-concrete composite shear wall with transverse ribs according to claim 8, wherein: the rib is inserted into the notch, so that the ribbed light steel plate and the edge-covered steel plate have an overlapped part, the overlapped part is connected through self-tapping screws to form a closed strip-shaped cross section, and the preset positions at two ends of the cross section are provided with the steel reinforcement cage.

10. The construction method of the rib transverse arrangement type light steel plate-concrete combined shear wall is characterized by comprising the following steps:

1) aligning and overlapping the lower edge rib of the upper sub steel plate and the upper edge rib of the lower sub steel plate, and connecting the upper sub steel plate and the lower sub steel plate by adopting self-tapping screws to form a ribbed light steel plate;

2) placing the two spliced light steel plates with the ribs and the two edge restraining members according to a preset relative position; the ribbed light steel plate is used as a web plate steel plate of the combined shear wall, and the ribs are transversely arranged;

3) the ribs of the ribbed light steel plate are wedged into the elongated notches of the edge restraining members, and the ribbed light steel plate and the edge restraining members are connected by self-tapping screws to form closed strip-shaped section grooves after the ribbed light steel plate is fixed in position.

Technical Field

The invention relates to a building structure, in particular to a light steel plate-concrete combined shear wall with transversely arranged ribs and a connecting method.

Background

The steel plate-concrete combined shear wall is a novel lateral force resisting member, and is formed by combining steel plates wrapped outside two sides and concrete filled inside. In the construction stage, the steel plate can be used as a permanent formwork for concrete pouring. In the normal use stage, the steel plate can prevent concrete cracks from exposing and participating in structural stress, and the internally filled concrete can be not arranged or only arranged with the constructional steel bars. Therefore, the steel plate-concrete combined wall has good construction convenience and use performance, and is worth popularizing and applying in engineering.

The steel plate thickness of traditional steel plate-concrete combination shear wall is usually more than 10mm, simultaneously in order to guarantee that steel plate and concrete can the collaborative work, need adopt shear connection structure such as stiffening rib, and stiffening rib is for being on a parallel with the high vertical arrangement of wall usually. In multi-storey buildings, however, shear walls are subject to less axial forces, while shear forces are relatively large. If the traditional steel plate-concrete combined shear wall construction measures are adopted, the steel content of the cross section is high, and the longitudinal stiffening ribs cannot effectively participate in resisting horizontal shear, so that the combined shear wall is insufficient in material utilization and poor in economical efficiency.

The above problems can be solved by using a light steel plate with strip-shaped ribs as an outer steel plate. The thickness of the light steel plate is 0.75-1.8 mm, the light steel plate is usually made of cold-rolled galvanized coils, and the light steel plate has the characteristics of light weight, corrosion resistance, industrial standard production and the like. The bar-shaped ribs can be effectively embedded in concrete, the cooperative working performance between the steel plate and the concrete is enhanced, and meanwhile, the calculation width-thickness ratio of the steel plate can be effectively reduced, so that the local stability of the steel plate is improved. The transversely arranged strip-shaped ribs can also play the role of horizontally distributed reinforcing steel bars, effectively participate in resisting horizontal shearing force, and steel plate materials can be fully utilized.

The connection between the steel plates of the existing steel plate-concrete combined shear wall and the connection between the steel plates and the edge members usually need to adopt a large amount of auxiliary materials such as steel plates, reinforcing steel bars and the like, and the auxiliary materials are all related to welding. The welding operation has higher requirements on welding personnel and construction conditions. In addition, earthquake damage indicates that the welding seam is easy to crack under the action of earthquake reciprocating load, so that the structural performance is reduced. Therefore, the method for conveniently and reliably connecting the combined shear wall has great significance for popularization and application of the combined shear wall.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides a rib transversely-arranged light steel plate-concrete combined shear wall and a connecting method, wherein the rib transversely-arranged light steel plate-concrete combined shear wall is simple in structure, full in material utilization and convenient and reliable in connection.

In order to solve the above technical problems, the present invention provides a light steel plate-concrete composite shear wall with transverse ribs, comprising: ribbed lightweight steel plate, concrete, self-tapping screw, and edge-constraining member;

the ribbed light steel plates are arranged in parallel and in opposite directions, each ribbed light steel plate comprises at least two sub steel plates, and the two sub steel plates are arranged along the height direction of the wall body and are fixedly connected through self-tapping screws;

the edge restraining members are arranged at two ends of the ribbed light steel plate along the length direction, are fixedly connected with the ribbed light steel plate through self-tapping screws to form a closed strip-shaped section in an enclosing mode, and the concrete is filled in the strip-shaped section.

In a preferred embodiment: the sub-steel plate is a closed-end profiled steel plate, a reduced-end profiled steel plate or a steel plate with strip-shaped ribs, and the thickness of the sub-steel plate is 0.75-1.8 mm.

In a preferred embodiment: the ribs are arranged along the lateral direction of the sub-steel plates.

In a preferred embodiment: the edge restraining member is a rectangular steel tube.

In a preferred embodiment: two longitudinal connecting plates are welded on a steel plate on one side of the rectangular steel pipe, the distance between the connecting plates is equal to the thickness of a wall body of the shear wall, a plurality of strip-shaped notches are formed in the longitudinal connecting plates along the height direction of the wall, and the positions of the notches correspond to the positions of ribs of the sub-steel plates.

In a preferred embodiment: the ribs are inserted into the notches, so that the ribbed light steel plate and the rectangular steel pipe are provided with overlapped parts, and the overlapped parts are connected through self-tapping screws to form a closed strip-shaped section.

In a preferred embodiment: the edge restraining member is a reinforcement cage and a wrapped steel plate.

In a preferred embodiment: the steel plate of borduring is channel-section steel or cold-formed U shaped steel, and it has a plurality of rectangular shape incisions to open on its edge of a wing border wall direction of height, and notched position corresponds with the rib position of sub-steel sheet.

In a preferred embodiment: the rib is inserted into the notch, so that the ribbed light steel plate and the edge-covered steel plate have an overlapped part, the overlapped part is connected through self-tapping screws to form a closed strip-shaped cross section, and the preset positions at two ends of the cross section are provided with the steel reinforcement cage.

The invention also provides a construction method of the light steel plate-concrete combined shear wall with the transversely arranged ribs, which is characterized by comprising the following steps:

1) aligning and overlapping the lower edge rib of the upper sub steel plate and the upper edge rib of the lower sub steel plate, and connecting the upper sub steel plate and the lower sub steel plate by adopting self-tapping screws to form a ribbed light steel plate;

2) placing the two spliced light steel plates with the ribs and the two edge restraining members according to a preset relative position; the ribbed light steel plate is used as a web plate steel plate of the combined shear wall, and the ribs are transversely arranged;

3) the ribs of the ribbed light steel plate are wedged into the elongated notches of the edge restraining members, and the ribbed light steel plate and the edge restraining members are connected by self-tapping screws to form closed strip-shaped section grooves after the ribbed light steel plate is fixed in position.

Compared with the prior art, the technical scheme of the invention has the following beneficial effects:

the light steel plate-concrete combined shear wall with the transversely arranged ribs has the outstanding advantages that the steel plate is light and thin, the steel content of the section of the combined wall is low, and the combined wall has good applicability in multi-storey buildings. The transversely arranged strip-shaped ribs not only improve the common working performance between the outer steel plate and the inner concrete, but also can effectively participate in resisting horizontal load, thereby improving the shear-resistant bearing capacity of the combined shear wall. Compared with the traditional connection mode, the invention greatly simplifies the construction process. No matter the connection between the steel plates or the connection between the steel plates and the edge members, the connection can be completed at one time only by adopting the tapping screws through drilling, tapping and fixing of electric tools. The connection mode has reliable quality, simple operation and low requirements on equipment and personnel. The invention improves the mechanical property and the construction convenience of the steel plate-concrete combined shear wall.

Drawings

FIG. 1 is a three-dimensional schematic view of the connection between ribbed lightweight steel panels;

FIG. 2 is a three-dimensional view of each component of a rib transverse arrangement type light steel plate-concrete composite shear wall with rectangular steel pipes as edge constraint members;

FIG. 3 is a three-dimensional view of a rib-transversely disposed light steel plate-concrete composite shear wall with rectangular steel tubes as edge-constraining members;

FIG. 4 is a three-dimensional view of a rib transverse arrangement type light steel plate-concrete combined shear wall with an edge constraint member using a reinforcement cage and a steel plate with a covered edge;

FIG. 5 is a top view of a light steel plate-concrete composite shear wall with edge-constraining members employing a reinforcement cage and a wrapped steel plate with ribs arranged transversely;

FIG. 6 is a front view of a rib-transversely disposed light steel plate-concrete composite shear wall with rectangular steel tubes as edge-constraining members;

FIG. 7 is a top view of a light steel plate-concrete composite shear wall with transverse ribs of rectangular steel tubes as edge-constraining members;

in the figure: 1-son steel plate; 2-self-tapping screw; 3-concrete; 4-rectangular steel pipes; 5-a reinforcement cage; 6-edge-covered steel plate; 7-longitudinal steel bars; 8-stirrup.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like, are used in a broad sense, and for example, "connected" may be a wall-mounted connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection through an intermediate medium, and a communication between two elements, and those skilled in the art will understand the specific meaning of the terms in the present invention specifically.

Referring to fig. 1, the lower edge rib of an upper sub steel plate 1 is aligned with the upper edge rib of a lower sub steel plate 1, and the upper and lower sub steel plates 1 are connected by tapping screws 2 to form a ribbed lightweight steel plate. The distance between the self-tapping screws is 50-150 mm.

Referring to fig. 2 to 4, the rib-transversely arranged lightweight steel plate-concrete composite shear wall structure includes a ribbed lightweight steel plate, a tapping screw 2, concrete 3, and an edge-constraining member. The edge restraining member may be a rectangular steel tube 4 or a steel reinforcement cage 5 and a steel plate 6. Rectangular steel pipe 4 can adopt cold-formed, steel pipe for welded structure, and steel pipe one side steel sheet welding has twice vertical connecting plate, and the interval of connecting plate equals shear force wall thickness, and vertical connecting plate has a plurality of rectangular shape incisions along opening on the direction of height, and incision length is 50 ~ 100mm, and notched position corresponds with the position of steel sheet rib, makes the rib can accurately wedge into rectangular shape incision. After the spliced light steel plate with ribs 1 and the rectangular steel pipe 4 are positioned according to preset positions, the self-tapping screws 2 are adopted to connect the light steel plate with ribs 1 and the rectangular steel pipe 4 to form a closed strip-shaped section in a surrounding mode, and the self-tapping screws 2 complete connection at one time through drilling, tapping and fixing of electric tools. The ribs of the light steel plate 1 with ribs on both sides can be arranged in an aligned manner or in a staggered manner.

The edge restraint component also can adopt steel reinforcement cage 5 and the steel sheet 6 of borduring, the steel sheet 6 of borduring can adopt channel-section steel, cold-formed U shaped steel, and 6 cross-sectional heights of the steel sheet of borduring equal wall body thickness, and it has a plurality of rectangular shape incisions to open on 6 edges of a wing border wall body direction of height of the steel sheet of borduring, and incision length is 50 ~ 100mm, and notched position corresponds with the position of steel sheet rib, makes the rib can accurately wedge into rectangular shape incision. After the ribbed light steel plate 1 and the edge-covered steel plate 6 are positioned according to preset positions, the ribbed light steel plate 1 and the edge-covered steel plate 6 are connected by the self-tapping screws 2 to form a closed strip-shaped section in an enclosing mode, the reinforcement cage 5 comprises longitudinal reinforcements 7 and stirrups 8, the reinforcement cage 5 is respectively arranged at the end portions of two sides of the closed strip-shaped section, and the structural requirements of the reinforcement cage can refer to the regulations of the reinforced concrete shear wall edge members in building earthquake-resistant design specifications GB 50011 and 2010.

The concrete 3 is filled in the strip-shaped cross section, and the concrete 3 can be common concrete, light concrete or high-performance concrete.

The construction method comprises the following steps:

first, the lower edge ribs of the sub-steel plates 1 are aligned and overlapped with the upper edge ribs of the sub-steel plates 1, and the upper and lower sub-steel plates 1 are connected to each other by tapping screws 2 to be integrated. And sequentially splicing the plurality of sub steel plates 1 according to the requirement of the height of the wall body. Thereafter, the two spliced ribbed lightweight steel plates and 2 edge restraining members were placed in predetermined relative positions. The ribbed light steel plate 1 is used as a web plate steel plate of the combined shear wall, the ribs are transversely arranged, the steel plate ribs are wedged into the elongated notches of the edge member connecting plates, and after the positions are fixed, the ribbed light steel plate 1 and the edge members are connected by self-tapping screws 2 to form closed strip-shaped section grooves. If the edge member adopts the reinforcement cage 5, the reinforcement cage 5 is respectively placed on two sides of the strip-shaped cross section, finally the concrete 3 is poured in the closed strip-shaped cross section, and the construction of the invention is completed when the concrete 3 meets the maintenance requirement.

The above description is only a preferred embodiment of the present invention, but the design concept of the present invention is not limited thereto, and any person skilled in the art can make insubstantial changes in the technical scope of the present invention within the technical scope of the present invention, and the actions infringe the protection scope of the present invention are included in the present invention.