CN206737199U - A kind of light steel foam concrete assembled wall of assembled - Google Patents
A kind of light steel foam concrete assembled wall of assembled Download PDFInfo
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- CN206737199U CN206737199U CN201720507324.3U CN201720507324U CN206737199U CN 206737199 U CN206737199 U CN 206737199U CN 201720507324 U CN201720507324 U CN 201720507324U CN 206737199 U CN206737199 U CN 206737199U
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 99
- 239000010959 steel Substances 0.000 title claims abstract description 99
- 239000011381 foam concrete Substances 0.000 title claims abstract description 29
- 239000004568 cement Substances 0.000 claims abstract description 7
- 239000000835 fiber Substances 0.000 claims abstract description 5
- 238000010079 rubber tapping Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 3
- 239000004567 concrete Substances 0.000 claims description 2
- 239000004540 pour-on Substances 0.000 claims 1
- 238000009413 insulation Methods 0.000 abstract description 19
- 239000002131 composite material Substances 0.000 abstract description 14
- 238000005452 bending Methods 0.000 abstract description 3
- 238000009415 formwork Methods 0.000 abstract description 3
- 238000009776 industrial production Methods 0.000 abstract description 2
- 238000010276 construction Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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Abstract
本实用新型一种装配式轻钢‑泡沫混凝土组合墙体，包括墙板框架，所述墙板框架包括沿横向排设的第一U型轻钢、第二U型轻钢及第三U型轻钢，在第一、第二、第三U型轻钢的顶端和底端分别设置有第四U型轻钢和第五U型轻钢，第四U型轻钢上开设有浇注孔，第一、第二、第三U型轻钢沿纵向的两侧嵌装有第一墙板，在第一墙板和墙板框架之间形成的空腔中填充泡沫混凝土。通过在墙板框架外围设置纤维水泥板，不仅增强墙体的保温性能，还能节省模板，适用于制作装配式组合墙体，装配化程度高，适合工业化生产；墙板框架和第一墙板之间形成的空腔结构内填充泡沫混凝土，提高整个墙板的抗剪和抗弯强度，提高了墙体的保温、隔音与防火性能。
The utility model is an assembled light steel-foam concrete composite wall body, comprising a wall panel frame, and the wall panel frame includes a first U-shaped light steel, a second U-shaped light steel and a third U-shaped light steel arranged in the horizontal direction. Light steel, the fourth U-shaped light steel and the fifth U-shaped light steel are respectively arranged on the top and bottom of the first, second and third U-shaped light steels, and pouring holes are opened on the fourth U-shaped light steels, The first, second and third U-shaped light steel are embedded with first wallboards on both sides along the longitudinal direction, and the cavity formed between the first wallboard and the wallboard frame is filled with foam concrete. By arranging fiber cement boards on the periphery of the wall panel frame, it not only enhances the thermal insulation performance of the wall, but also saves formwork, which is suitable for making prefabricated composite walls with a high degree of assembly and is suitable for industrial production; the wall panel frame and the first wall panel The cavity structure formed between them is filled with foam concrete, which improves the shear and bending strength of the entire wall panel, and improves the thermal insulation, sound insulation and fireproof performance of the wall.
Description
技术领域：Technical field:
本实用新型涉及建筑工程技术领域，具体涉及一种装配式轻钢-泡沫混凝土组合墙体。The utility model relates to the technical field of construction engineering, in particular to an assembled light steel-foam concrete composite wall.
背景技术：Background technique:
传统的冷弯薄壁型钢墙体是一种以冷弯薄壁型钢骨架和轻型墙面板通过自攻螺钉连接共同作为承重和维护结构的墙体系统。这种结构体系自重轻，施工速度快，但墙体的保温、隔音、防火等性能差，自攻螺钉的间断连接使结构的整体性较差。为改善上述不足，本文提出一种轻钢-泡沫混凝土组合墙体，用冷弯薄壁型钢和水泥板支模，形成墙体空腔，然后现场浇筑的发泡混凝土浆体从空腔中流入，硬化后与型钢和水泥板一起，形成完整一体的夹心复合墙体。夹芯混凝土的使用可以提高这种墙体的保温、隔音和防火等性能，使结构保温可实现建筑自保温，同时彻底解决建筑保温及防火的矛盾，且使墙体具有较好的整体性。该种墙体不但具有轻质、保温隔音性能好、抗震性能好、管线安装方便、免粉刷等优良特性，并且其耐候性能和抗冻性能也很好，面板和芯层结合紧密，淋湿后再受冻不会出现空鼓或脱落，适合用作外墙，具有较大的推广价值。The traditional cold-formed thin-walled steel wall is a wall system in which the cold-formed thin-walled steel skeleton and light wall panels are connected by self-tapping screws as a load-bearing and maintenance structure. This kind of structural system has light weight and fast construction speed, but the thermal insulation, sound insulation and fireproof performance of the wall are poor, and the intermittent connection of self-tapping screws makes the integrity of the structure poor. In order to improve the above deficiencies, this paper proposes a light steel-foam concrete composite wall, which uses cold-formed thin-walled steel and cement board to support the formwork to form a wall cavity, and then the foamed concrete slurry poured on site flows into the cavity After hardening, it will form a complete sandwich composite wall together with steel and cement boards. The use of sandwich concrete can improve the thermal insulation, sound insulation and fireproof performance of the wall, so that the structural insulation can realize the self-insulation of the building, and at the same time completely solve the contradiction between building thermal insulation and fire prevention, and make the wall have better integrity. This kind of wall not only has excellent characteristics such as light weight, good thermal insulation and sound insulation performance, good seismic performance, convenient installation of pipelines, and no painting, but also has good weather resistance and frost resistance. It will not be hollowed out or fall off when it is frozen again, and it is suitable for use as an exterior wall and has great promotion value.
实用新型内容：Utility model content:
本实用新型的目的是提供一种性能更加优良的装配式轻钢-泡沫混凝土组合墙体。The purpose of the utility model is to provide an assembled light steel-foam concrete composite wall with better performance.
为实现上述目的，本实用新型采用以下技术方案：In order to achieve the above object, the utility model adopts the following technical solutions:
本实用新型提供的一种装配式轻钢-泡沫混凝土组合墙体，包括墙板框架，所述墙板框架包括沿横向排设的第一U型轻钢、第二U型轻钢及第三U型轻钢，在所述第一、第二、第三U型轻钢的顶端和底端分别设置有第四U型轻钢和第五U型轻钢，所述第四U型轻钢上开设有浇注孔，所述第一、第二、第三U型轻钢沿纵向的两侧嵌装有第一墙板，在所述第一墙板和所述墙板框架之间形成空腔，在所述空腔中填充泡沫混凝土。The utility model provides an assembled light steel-foam concrete composite wall, which includes a wall panel frame, and the wall panel frame includes a first U-shaped light steel, a second U-shaped light steel and a third U-shaped light steel arranged horizontally. U-shaped light steel, a fourth U-shaped light steel and a fifth U-shaped light steel are arranged on the top and bottom ends of the first, second, and third U-shaped light steels, and the fourth U-shaped light steel There are pouring holes on the top, the first, second, and third U-shaped light steel are embedded with first wall panels on both sides in the longitudinal direction, and a space is formed between the first wall panels and the wall panel frame. A cavity is filled with foam concrete.
所述第四、第五U型轻钢沿纵向的两侧嵌装有第二墙板。The fourth and fifth U-shaped light steel are embedded with second wallboards on both sides in the longitudinal direction.
所述第一、第三U型轻钢与所述第四、第五U型轻钢相搭接的部分设置有吊装孔。The parts where the first and third U-shaped light steels overlap with the fourth and fifth U-shaped light steels are provided with hoisting holes.
所述第一、第二、第三U型轻钢的中段沿横向设置有拉条。The middle sections of the first, second and third U-shaped light steel are provided with braces along the transverse direction.
所述第一、第三U型轻钢与所述第四、第五U型轻钢之间设置有斜拉条。Diagonal stays are arranged between the first and third U-shaped light steels and the fourth and fifth U-shaped light steels.
所述第一、第二、第三U型轻钢的端部朝向彼此弯折设置。The ends of the first, second and third U-shaped light steel are bent toward each other.
所述第一、第二、第三、第四和第五U型轻钢的厚度相同，均为2～3mm。The first, second, third, fourth and fifth U-shaped light steels have the same thickness, which is 2-3 mm.
所述第一墙板和第二墙板均为纤维水泥板，其厚度均为8-12mm。Both the first wallboard and the second wallboard are fiber cement boards with a thickness of 8-12 mm.
所述第一墙板和第二墙板通过自攻螺钉固接于所述墙板框架上。The first wallboard and the second wallboard are fixed on the wallboard frame by self-tapping screws.
本实用新型一种装配式轻钢-泡沫混凝土组合墙体的有益效果：自重轻，施工速度快，保温隔音，便于吊装，安装方便，成本低，适用于低、多层建筑承重和维护结构的墙体系统，通过在墙板框架外围设置纤维水泥板，不仅增强墙体的保温性能，还能节省模板，适用于制作装配式组合墙体，装配化程度高，适合工业化生产；墙板框架和第一墙板之间形成的空腔结构内填充泡沫混凝土，提高了整个墙板的抗剪和抗弯强度，提高了墙体的保温、隔音与防火性能；在轻钢框架之间设置有拉条和斜拉条，可有效提高墙体轻钢框架的整体稳定性、抗侧刚度，避免框架受压失稳，且在框架结构上设置的吊装孔，可以实现墙板的悬吊安装，且其安装简单、方便，施工速度快。The utility model has the beneficial effects of an assembled light steel-foam concrete composite wall body: light weight, fast construction speed, heat preservation and sound insulation, easy hoisting, convenient installation, low cost, and is suitable for low and multi-storey building load-bearing and maintenance structures. The wall system, by arranging fiber cement boards around the wall panel frame, not only enhances the thermal insulation performance of the wall, but also saves formwork. It is suitable for making prefabricated composite walls with a high degree of assembly and is suitable for industrial production; the wall panel frame and The cavity structure formed between the first wall panels is filled with foam concrete, which improves the shear and bending strength of the entire wall panel, and improves the thermal insulation, sound insulation and fireproof performance of the wall; Strips and cable-stayed strips can effectively improve the overall stability and lateral stiffness of the light steel frame of the wall, avoiding the instability of the frame under pressure, and the hoisting holes set on the frame structure can realize the suspension installation of the wall panels, and The installation is simple and convenient, and the construction speed is fast.
附图说明：Description of drawings:
图1为本实用新型一种装配式轻钢-泡沫混凝土组合墙体的墙体框架的结构示意图；Fig. 1 is a structural schematic diagram of a wall frame of an assembled light steel-foam concrete composite wall of the present invention;
图2为本实用新型一种装配式轻钢-泡沫混凝土组合墙体的结构示意图；Fig. 2 is a structural schematic diagram of an assembled light steel-foam concrete composite wall of the present invention;
图3为本实用新型一种装配式轻钢-泡沫混凝土组合墙体的断面图；Fig. 3 is a sectional view of an assembled light steel-foam concrete composite wall of the present invention;
图4为第一U型轻钢的结构示意图；Fig. 4 is the structural representation of the first U-shaped light steel;
1-墙板框架，2-第一U型轻钢，3-第二U型轻钢，4-第三U型轻钢，5-拉条，6-第四U型轻钢，7-第五U型轻钢，8-浇注孔，9-吊装孔，10-斜拉条，11-第一墙板，12-第二墙板，13-泡沫混凝土，14-第六U型轻钢。1-Wall panel frame, 2-First U-shaped light steel, 3-Second U-shaped light steel, 4-Third U-shaped light steel, 5-Brace, 6-Fourth U-shaped light steel, 7-The first Five U-shaped light steel, 8-pouring hole, 9-hoisting hole, 10-cable stay, 11-first wallboard, 12-second wallboard, 13-foam concrete, 14-sixth U-shaped light steel.
具体实施方式：detailed description:
下面结合实施例对本实用新型作进一步的详细说明。Below in conjunction with embodiment the utility model is described in further detail.
根据图1～图3所示，本实用新型提供的一种装配式轻钢-泡沫混凝土组合墙体，包括墙板框架1，所述墙板框架1包括沿横向排设的第一U型轻钢2、第二U型轻钢3及第三U型轻钢4，在所述第一、第二、第三U型轻钢的中段沿横向设置有拉条5，在所述第一、第二、第三U型轻钢的顶端和底端分别设置有第四U型轻钢6和第五U型轻钢7，所述第四U型轻钢6上开设有两个40mm×40mm的浇注孔8，在所述第一、第三U型轻钢与所述第四、第五U型轻钢相搭接的部分设置有吊装孔9，可以对墙体进行吊装，使得本墙体的安装简单方便，且在所述第一、第三U型轻钢与所述第四、第五U型轻钢之间设置有斜拉条10，提高墙体轻钢框架的整体稳定性、抗侧刚度，避免框架受压失稳，所述第一、第二、第三U型轻钢沿纵向的两侧嵌装有第一墙板11，在所述第一墙板11和所述墙板框架1之间形成空腔，在所述空腔中填充泡沫混凝土13，提高了整个墙板的抗剪和抗弯强度，提高了墙体的保温、隔音与防火性能，在所述第四、第五U型轻钢沿纵向的两侧嵌装有第二墙板12，所述第一墙板11和第二墙板12通过自攻螺钉固接于所述墙板框架1上，增强墙体的保温性能，装配化程度高，所述第一墙板11和第二墙板12均为纤维水泥板，其厚度均为8-12mm。As shown in Figures 1 to 3, an assembled light steel-foam concrete composite wall provided by the utility model includes a wall panel frame 1, and the wall panel frame 1 includes a first U-shaped light Steel 2, the second U-shaped light steel 3 and the third U-shaped light steel 4, in the middle section of the first, second, and third U-shaped light steel, a tie bar 5 is arranged laterally, and in the first, second and third U-shaped light steel The top and bottom of the second and third U-shaped light steels are respectively provided with a fourth U-shaped light steel 6 and a fifth U-shaped light steel 7, and the fourth U-shaped light steel 6 is provided with two 40mm×40mm The pouring holes 8 of the first and third U-shaped light steels and the overlapping parts of the fourth and fifth U-shaped light steels are provided with hoisting holes 9, which can hoist the wall so that the wall The installation of the body is simple and convenient, and there are diagonal stays 10 between the first and third U-shaped light steels and the fourth and fifth U-shaped light steels to improve the overall stability of the light steel frame of the wall , anti-lateral rigidity, to avoid the instability of the frame under pressure, the first, second, and third U-shaped light steel are embedded with first wall panels 11 on both sides of the longitudinal direction, and the first wall panels 11 and the A cavity is formed between the wall panel frames 1, and foam concrete 13 is filled in the cavity, which improves the shear and bending strength of the entire wall panel, and improves the thermal insulation, sound insulation and fireproof performance of the wall. The fourth and fifth U-shaped light steel are embedded with second wallboards 12 on both sides of the longitudinal direction, and the first wallboard 11 and the second wallboard 12 are fixed on the wallboard frame 1 by self-tapping screws , enhance the thermal insulation performance of the wall, and have a high degree of assembly. The first wallboard 11 and the second wallboard 12 are both fiber cement boards, and their thicknesses are both 8-12mm.
进一步地，如图4所示，所述第一、第二、第三U型轻钢结构相同，其端部朝向彼此弯折设置，且所述第一、第二、第三、第四和第五U型轻钢的厚度相同，均为2～3mm。Further, as shown in Figure 4, the first, second, and third U-shaped light steel structures are the same, and their ends are bent toward each other, and the first, second, third, fourth, and The fifth U-shaped light steel has the same thickness, which is 2-3mm.
上述一种装配式轻钢-泡沫混凝土组合墙体的使用方法，其具体步骤如下：The specific steps of the method for using the above-mentioned prefabricated light steel-foam concrete composite wall are as follows:
步骤1：制作墙板框架Step 1: Make the Wall Panel Frame
所述墙板框架1包括沿横向排设的第一U型轻钢2、第二U型轻钢3及第三U型轻钢4，及在所述第一、第二、第三U型轻钢的顶端和底端分别设置有第四U型轻钢6和第五U型轻钢7，且在所述第四U型轻钢6上开设有浇注孔8；The wall panel frame 1 includes a first U-shaped light steel 2, a second U-shaped light steel 3 and a third U-shaped light steel 4 arranged horizontally, and the first, second and third U-shaped The top and bottom ends of the light steel are respectively provided with a fourth U-shaped light steel 6 and a fifth U-shaped light steel 7, and a pouring hole 8 is opened on the fourth U-shaped light steel 6;
步骤2：预留吊装孔Step 2: Reserve hoisting holes
在所述第一、第三U型轻钢与所述第四、第五U型轻钢相连接的部分预留吊装孔9；Reserve hoisting holes 9 at the parts where the first and third U-shaped light steels are connected with the fourth and fifth U-shaped light steels;
步骤3：安装第一墙板Step 3: Install the First Wall Panel
在所述第一、第二、第三U型轻钢沿纵向的两侧嵌装第一墙板11；First wall panels 11 are embedded on both sides of the first, second and third U-shaped light steel along the longitudinal direction;
步骤4：填充泡沫混凝土Step 4: Fill the Foam Concrete
通过第四U型轻钢6上开设的浇注孔8向所述第一墙板11和所述墙板框架1之间形成的空腔中填充泡沫混凝土13；Fill the cavity formed between the first wall panel 11 and the wall panel frame 1 through the pouring hole 8 provided on the fourth U-shaped light steel 6;
步骤5：通过预留的吊装孔9将墙板框架1吊装至施工现场；Step 5: Hoist the wall panel frame 1 to the construction site through the reserved hoisting hole 9;
步骤6：将第六U型轻钢14固定于地梁；Step 6: Fix the sixth U-shaped light steel 14 to the ground beam;
步骤7：固定墙体框架；Step 7: Fix the wall frame;
通过预留的吊装孔9将墙体框架1吊装到已固定的所述第六U型轻钢14上，即将第五U型轻钢7套装在所述第六U型轻钢14内，然后通过自攻螺钉将墙体框架1固接于所述第六U型轻钢14；The wall frame 1 is hoisted on the fixed sixth U-shaped light steel 14 through the reserved hoisting hole 9, that is, the fifth U-shaped light steel 7 is set in the sixth U-shaped light steel 14, and then The wall frame 1 is fixed to the sixth U-shaped light steel 14 by self-tapping screws;
步骤8：安装第二墙板Step 8: Install the Second Wall Panel
在所述第四、第五U型轻钢沿纵向的两侧嵌装第二墙板12，使得整个墙面平整，进而完成整个墙体的组装。The second wall panel 12 is embedded on both sides of the fourth and fifth U-shaped light steel along the longitudinal direction, so that the entire wall surface is flat, and then the assembly of the entire wall body is completed.
最后应该说明的是：以上实施例仅用以说明本实用新型的技术方案而非对其限制，尽管参照上述实施例对本实用新型进行了详细说明，所属领域的普通技术人员应当理解：依然可以对本实用新型的具体实施方式进行修改或者等同替换，而未脱离本实用新型精神和范围的任何修改或者等同替换，其均应涵盖在本权利要求范围当中。Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model and not to limit them. Although the present utility model has been described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: the present utility model can still be The specific implementation of the utility model is modified or equivalently replaced, and any modification or equivalently replaced without departing from the spirit and scope of the utility model shall be covered by the scope of the present claims.
Claims (9)
- A kind of 1. light steel of assembled-foam concrete assembled wall, it is characterised in that：Including wallboard frame, the wallboard frame It is U-shaped described first, second, third including transversely arranging the first U-shaped light steel set, the second U-shaped light steel and the 3rd U-shaped light steel The top and bottom of light steel are respectively arranged with the 4th U-shaped light steel and the 5th U-shaped light steel, offer and pour on the described 4th U-shaped light steel Orifice, both sides of the described first, second, third U-shaped light steel along longitudinal direction are embedded with the first wallboard, in first wallboard and described Cavity is formed between wallboard frame, the filled and process concrete in the cavity.
- A kind of 2. light steel of assembled-foam concrete assembled wall according to claim 1, it is characterised in that：Described 4th, both sides of the 5th U-shaped light steel along longitudinal direction are embedded with the second wallboard.
- A kind of 3. light steel of assembled-foam concrete assembled wall according to claim 1, it is characterised in that：Described First, the part that the 3rd U-shaped light steel mutually overlaps with described four, the 5th U-shaped light steel is provided with hole for hoist.
- A kind of 4. light steel of assembled-foam concrete assembled wall according to claim 1, it is characterised in that：Described First, the stage casing of second, third U-shaped light steel is horizontally arranged with tie rod.
- A kind of 5. light steel of assembled-foam concrete assembled wall according to claim 1, it is characterised in that：Described First, it is provided with batter brace between the 3rd U-shaped light steel and the four, the 5th U-shaped light steel.
- A kind of 6. light steel of assembled-foam concrete assembled wall according to claim 1, it is characterised in that：Described First, the end of second, third U-shaped light steel bends setting toward each other.
- A kind of 7. light steel of assembled-foam concrete assembled wall according to claim 1, it is characterised in that：Described First, second, third, it is the 4th identical with the thickness of the 5th U-shaped light steel, be 2~3mm.
- A kind of 8. light steel of assembled-foam concrete assembled wall according to claim 2, it is characterised in that：Described One wallboard and the second wallboard are fiber cement board, and its thickness is 8-12mm.
- A kind of 9. light steel of assembled-foam concrete assembled wall according to claim 2, it is characterised in that：Described One wallboard and the second wallboard are fixed on the wallboard frame by tapping screw.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106958308A (en) * | 2017-05-09 | 2017-07-18 | 沈阳建筑大学 | A kind of light steel foam concrete assembled wall of assembled and its application method |
| CN108343193A (en) * | 2018-04-28 | 2018-07-31 | 山东省建设发展研究院 | A kind of light prefabricated assembling type outer wall plate and preparation method thereof |
| CN108560795A (en) * | 2018-03-14 | 2018-09-21 | 沈阳建筑大学 | A kind of light steel of assembled-foam concrete composite floor and its construction method |
| CN108589981A (en) * | 2018-06-22 | 2018-09-28 | 上海开装建筑科技有限公司 | The rapidly-assembled integrated molding partition wall of one kind and its installation method |
| CN109440966A (en) * | 2018-12-13 | 2019-03-08 | 沈阳建筑大学 | A kind of light steel frame-foam concrete-steel wire assembled wall and connection method |
| CN115324209A (en) * | 2022-08-03 | 2022-11-11 | 日照天工绿能建筑科技发展有限公司 | Assembly type light steel and light concrete structure wallboard connecting structure and construction method |
-
2017
- 2017-05-09 CN CN201720507324.3U patent/CN206737199U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106958308A (en) * | 2017-05-09 | 2017-07-18 | 沈阳建筑大学 | A kind of light steel foam concrete assembled wall of assembled and its application method |
| CN108560795A (en) * | 2018-03-14 | 2018-09-21 | 沈阳建筑大学 | A kind of light steel of assembled-foam concrete composite floor and its construction method |
| CN108343193A (en) * | 2018-04-28 | 2018-07-31 | 山东省建设发展研究院 | A kind of light prefabricated assembling type outer wall plate and preparation method thereof |
| CN108589981A (en) * | 2018-06-22 | 2018-09-28 | 上海开装建筑科技有限公司 | The rapidly-assembled integrated molding partition wall of one kind and its installation method |
| CN109440966A (en) * | 2018-12-13 | 2019-03-08 | 沈阳建筑大学 | A kind of light steel frame-foam concrete-steel wire assembled wall and connection method |
| CN115324209A (en) * | 2022-08-03 | 2022-11-11 | 日照天工绿能建筑科技发展有限公司 | Assembly type light steel and light concrete structure wallboard connecting structure and construction method |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20171212 Termination date: 20210509 |