CN107859059B - Connecting node structure of prefabricated sandwich side wall and prefabricated superposed bottom plate and construction method thereof - Google Patents
Connecting node structure of prefabricated sandwich side wall and prefabricated superposed bottom plate and construction method thereof Download PDFInfo
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- CN107859059B CN107859059B CN201710849545.3A CN201710849545A CN107859059B CN 107859059 B CN107859059 B CN 107859059B CN 201710849545 A CN201710849545 A CN 201710849545A CN 107859059 B CN107859059 B CN 107859059B
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/045—Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/16—Arrangement or construction of joints in foundation structures
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Abstract
The utility model discloses a connecting node structure of a prefabricated sandwich side wall and a prefabricated superposed bottom plate and a construction method thereof, wherein the connecting node structure comprises the prefabricated sandwich side wall (1) and the prefabricated superposed bottom plate (2) which are vertically connected, vertical steel bars of the prefabricated sandwich side wall extend downwards and are bent relatively, a rectangular steel bar cage is arranged between the prefabricated sandwich side wall and the prefabricated superposed bottom plate, and the bottom of the rectangular steel bar cage is propped against a second prefabricated layer of the prefabricated superposed bottom plate through a steel bar backing plate (3); a second prefabricated layer of the prefabricated laminated bottom plate is internally provided with split heads and reinforcing steel bars (4); and prefabricating second cast-in-situ layer cast-in-situ concrete of the superposed bottom plate, and extending upwards for a section to form a first cast-in-situ section (5), wherein the first cast-in-situ layer of the prefabricated sandwich side wall and the vertical reinforcing steel bar extension section of the prefabricated sandwich side wall together form a second cast-in-situ section (6). The joint of the first cast-in-situ section and the second cast-in-situ section moves upwards, so that the structure has stronger shearing capacity and effectively improves the stress performance of the whole structure.
Description
Technical Field
The utility model relates to a fully prefabricated overlapped assembled underground comprehensive pipe gallery, in particular to a prefabricated sandwich side wall and prefabricated overlapped bottom plate connecting node structure of the fully prefabricated overlapped assembled underground comprehensive pipe gallery and a construction method thereof.
Background
Chinese patent application CN205742265U discloses a prefabricated assembled underground utility tunnel, its bottom plate is prefabricated coincide bottom plate, its side wall or side wall and middle wall are prefabricated sandwich side wall, its roof is prefabricated coincide roof, the bottom plate, side wall or side wall and middle wall, roof three are through cast-in-place connection to become whole underground utility tunnel. The prefabricated sandwich side wall comprises prefabricated layers on two sides and a sandwich cast-in-situ layer in the middle, wherein reinforcing steel meshes are embedded in the prefabricated layers of the prefabricated sandwich side wall, and the reinforcing steel meshes in the prefabricated layers on two sides are fixedly connected to the middle truss through binding. As known from chinese patent application CN205742265U, when the prefabricated sandwich side wall is connected with the prefabricated laminated bottom plate, a rectangular reinforcement cage can be directly embedded in the cast-in-situ layer of the prefabricated laminated bottom plate, and then the cast-in-situ layers of the prefabricated laminated bottom plate and the prefabricated sandwich side wall are respectively cast-in-situ and fixed. But obviously, the connection positions of the first cast-in-situ section and the second cast-in-situ section in the connection mode are exactly positioned at the connection position of the prefabricated sandwich side wall and the prefabricated superposed bottom plate, so that the shearing resistance of the whole structure is weaker, and the structure cannot be ensured to have enough connection strength and good stress performance.
Disclosure of Invention
The utility model aims to solve the technical problem of overcoming the defects of the prior art and provides a prefabricated sandwich side wall and prefabricated superposed bottom plate connecting node structure which can realize the stable connection of the prefabricated sandwich side wall and the prefabricated superposed bottom plate and has enough stress performance and a construction method thereof.
It should be noted that, in the present utility model, the terms "vertical", "horizontal", "longitudinal", "upper" and "lower" refer to the directions shown in the drawings.
In order to solve the technical problems, the utility model provides a connecting node structure of a prefabricated sandwich side wall and a prefabricated superposed bottom plate, which comprises a vertically arranged prefabricated sandwich side wall and a prefabricated superposed bottom plate horizontally arranged below the prefabricated sandwich side wall, wherein the prefabricated sandwich side wall of the prefabricated superposed bottom plate comprises first prefabricated layers positioned at two sides and first cast-in-place layers positioned in the middle, the prefabricated superposed bottom plate comprises second prefabricated layers positioned at the bottom and second cast-in-place layers positioned on the second prefabricated layers, a plurality of vertical steel bars are uniformly distributed in the two first prefabricated layers of the prefabricated sandwich side wall, first truss ribs are arranged between the vertical steel bars in the two first prefabricated layers, second truss ribs are arranged between the second prefabricated layers of the prefabricated superposed bottom plate and the transverse steel bars in the second cast-in-place layers, the vertical steel bars in the first prefabricated layers at two sides of the prefabricated sandwich side wall extend downwards and are oppositely bent, a steel bar backing plate is paved on the second prefabricated layers of the prefabricated superposed bottom plate, a rectangular steel bar cage is arranged between the steel bar backing plate and the prefabricated sandwich side wall, and the upper end of the rectangular steel bar cage is mutually embedded with the vertical steel bars of the prefabricated sandwich side wall; the method comprises the steps of carrying out a first treatment on the surface of the A second prefabricated layer of the prefabricated laminated bottom plate is internally provided with split heads and steel bars, the tops of the split heads and steel bars are bent into a U shape and extend into the bottom of a rectangular steel bar cage positioned in the second cast-in-situ layer, and two ends of the split heads and steel bars are bent and then extend into the second prefabricated layer; and the second cast-in-situ layer of the prefabricated superposed bottom plate and the joint of the prefabricated superposed bottom plate and the rectangular reinforcement cage are cast in situ together with concrete and extend upwards for a distance to form a first cast-in-situ section, and the first cast-in-situ layer of the prefabricated sandwich side wall and the vertical reinforcement extension section of the prefabricated sandwich side wall are cast in situ together with concrete to form a second cast-in-situ section.
According to the scheme, the first cast-in-situ section and the second cast-in-situ section are adjacent, and water stop steel plates parallel to the vertical steel bars of the prefabricated sandwich side walls are arranged at the adjacent positions, so that the waterproof performance of the structure is enhanced.
The scheme is further improved in that the upper end and the lower end of the water stop steel plate are symmetrically arranged on the first cast-in-place section and the second cast-in-place section.
According to the scheme, the vertical steel bars of the prefabricated sandwich side walls are bound with the upper ends of the rectangular steel bar cages, and the transverse steel bars, the split heads steel bars and the lower ends of the rectangular steel bar cages in the second cast-in-place layer of the prefabricated laminated slab are bound together.
According to the scheme, the split heads are bound with the transverse steel bars in the second prefabricated layer of the prefabricated superposed bottom plate.
According to the scheme, the second prefabricated layer of the prefabricated superposed bottom plate extends upwards outside the prefabricated sandwich side wall, so that the second prefabricated layer is arranged in an L-shaped mode at the end of the prefabricated superposed bottom plate.
The scheme is further improved in that a plurality of auxiliary connecting steel bars are arranged on the periphery of the rectangular steel bar cage.
In order to solve the technical problems, the utility model also provides a construction method of the prefabricated sandwich side wall and prefabricated superposed bottom plate connecting node structure, which comprises the following steps:
1) Paving a cushion layer on the underground pipe gallery foundation pit;
2) Paving a waterproof material on the cushion layer;
3) Hoisting a prefabricated laminated bottom plate which is preset with split heads and second truss ribs, horizontally laying the prefabricated laminated bottom plate on a waterproof material, and simultaneously laying a steel bar backing plate on a second prefabricated layer of the prefabricated laminated bottom plate at the position opposite to the prefabricated sandwich side wall;
4) Placing a rectangular reinforcement cage on the reinforcement backing plate, and binding and fixing the rectangular reinforcement cage and the split heads together;
5) A water-stopping steel plate is arranged in the middle of the rectangular reinforcement cage, namely at the boundary of the first cast-in-place section and the second cast-in-place section, and is uniformly distributed in the first cast-in-place section and the second cast-in-place section;
6) Binding the steel bars in the second cast-in-situ layer of the prefabricated laminated bottom plate, and binding the transverse steel bars in the second cast-in-situ layer with a rectangular steel bar cage;
7) Installing a flange mold outside the second cast-in-situ layer and the first cast-in-situ section of the prefabricated laminated bottom plate;
8) Casting a second cast-in-situ layer and a first cast-in-situ section of the prefabricated laminated bottom plate by using concrete until the second cast-in-situ layer and the first cast-in-situ section reach the center line position of the water stop steel plate;
9) Removing the second cast-in-situ layer of the prefabricated laminated bottom plate and the outer side flange die of the first cast-in-situ section;
10 Hoisting the prefabricated sandwich side walls which extend the vertical steel bars in the first prefabricated layers at two sides downwards and bend relatively, placing the prefabricated sandwich side walls on a rectangular steel bar cage, and building a supporting system for the prefabricated sandwich side walls;
11 Binding the vertical reinforcement extension section of the prefabricated sandwich side wall with a rectangular reinforcement cage;
12 Installing a flange die outside the second cast-in-situ section;
13 Pouring the first cast-in-situ layer and the second cast-in-situ section of the prefabricated sandwich side wall with concrete;
14 And (3) removing the flange mold at the outer side of the second cast-in-situ section.
Compared with the prior art, the utility model has the following advantages:
according to the utility model, the vertical steel bars of the prefabricated sandwich side wall extend downwards and are oppositely bent to enter the second cast-in-place section, a rectangular steel bar cage is arranged between the prefabricated sandwich side wall and the prefabricated superposed bottom plate, the rectangular steel bar cage is propped against the second prefabricated layer through the steel bar backing plate, meanwhile, a split heads steel bar is additionally arranged at the joint in the prefabricated superposed bottom plate, when in cast-in-place, the second cast-in-place layer of the prefabricated superposed bottom plate is cast in place, concrete extends upwards for a certain distance to form a first cast-in-place section, and the first cast-in-place layer of the prefabricated sandwich side wall and the vertical steel bar extending section of the prefabricated sandwich side wall are cast in-place to form a second cast-in-place section together.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present utility model.
In the figure: 1, prefabricating a sandwich side wall; 11 a first preformed layer; 12 a first cast-in-situ layer; 13 vertical steel bars; 14 first truss ribs; 2, prefabricating a superposed bottom plate; 21 a second preformed layer; 22 a second cast-in-place layer; 23 transverse steel bars; 3, a reinforcing steel bar backing plate; 4, reinforcing steel bars of the split heads; 5 a first cast-in-situ section; 6, a second cast-in-situ section; 7, a water stop steel plate; 8, longitudinal steel bars; 9, second truss ribs; 10 rectangular reinforcement cages; 101 auxiliary connection bars.
Detailed Description
The technical scheme of the utility model is further described below by the specific embodiments with reference to the accompanying drawings.
Referring to fig. 1, an embodiment of a connection node structure between a prefabricated sandwich side wall and a prefabricated laminated bottom plate of the present utility model includes a prefabricated sandwich side wall 1 arranged vertically and a prefabricated laminated bottom plate 2 arranged horizontally below the prefabricated sandwich side wall 1. The prefabricated sandwich side wall 1 comprises first prefabricated layers 11 positioned at two sides and first cast-in-situ layers 12 positioned in the middle, a plurality of vertical steel bars 13 are uniformly distributed in the first prefabricated layers 11 at two sides, the vertical steel bars 13 in the first prefabricated layers 11 at two sides extend downwards and are bent relatively, and first truss ribs 14 positioned in the first cast-in-situ layers 12 are arranged between the vertical steel bars 13 in the first prefabricated layers 11 at two sides. A rectangular reinforcement cage 10 is arranged between the prefabricated sandwich side wall 1 and the prefabricated superposed bottom plate 2, auxiliary connecting reinforcements 101 are arranged in the rectangular reinforcement cage 10, and the bottom of the rectangular reinforcement cage 10 abuts against a second prefabricated layer 21 of the prefabricated superposed bottom plate 2 through a reinforcement backing plate 3. The prefabricated superposed bottom plate 2 comprises a second prefabricated layer 21 positioned at the bottom and a second cast-in-situ layer 22 positioned on the second prefabricated layer 21, wherein a plurality of transverse steel bars 23 and a plurality of longitudinal steel bars 8 are uniformly distributed in the second prefabricated layer 21 and the second cast-in-situ layer 22, and a second truss rib 9 is arranged between the transverse steel bars 23 in the second prefabricated layer 21 and the second cast-in-situ layer 22. A split heads steel bar 4 is arranged in a second prefabricated layer 21 of the prefabricated laminated bottom plate 2, the top of the split heads steel bar 4 is bent into a U shape, the top of the U shape extends into a rectangular steel bar cage 10 positioned in a second cast-in-situ layer 22, and two ends of the split heads steel bar 4 extend into the second prefabricated layer 21 after being bent. The second cast-in-place layer 22 of the prefabricated laminated bottom plate 1 is used for casting concrete in situ and extends upwards for a certain distance to form a first cast-in-place section 5, and the first cast-in-place layer 12 of the prefabricated sandwich side wall 2 and the vertical reinforcing steel bar extension of the prefabricated sandwich side wall 2 are used for casting concrete in situ together to form a second cast-in-place section 6. The first cast-in-situ section 5 and the second cast-in-situ section 6 are adjacent, and a water stop steel plate 7 is arranged at the adjacent position to enhance the waterproof performance.
In order to further enhance the connection strength and the stress performance at the connection node, the vertical steel bars 13, the split heads steel bars 4 of the prefabricated sandwich side wall 1 and the transverse steel bars 23 in the second cast-in-situ layer 22 of the prefabricated laminated bottom plate 2 are respectively bound with the rectangular steel bar cage 10. Both ends of the split heads steel bar 4 are bound with transverse steel bars 23 in a second prefabricated layer 21 of the prefabricated laminated bottom plate 2.
The construction method of the prefabricated sandwich side wall and prefabricated superposed bottom plate connecting node structure comprises the following steps:
1) Paving a cushion layer on the underground pipe gallery foundation pit;
2) Paving a waterproof material on the cushion layer;
3) Hoisting a prefabricated superposed bottom plate 2 which is provided with a split heads steel bar 4 and a second truss steel bar 9 in advance, horizontally laying the prefabricated superposed bottom plate on a waterproof material, and simultaneously laying a steel bar backing plate 3 on a second prefabricated layer of the prefabricated superposed bottom plate at the position opposite to the prefabricated sandwich side wall;
4) Placing a rectangular reinforcement cage 10 on the reinforcement backing plate, and binding and fixing the rectangular reinforcement cage and the split heads together;
5) A water-stop steel plate 7 is arranged in the middle of the rectangular reinforcement cage, namely at the boundary of the first cast-in-place section and the second cast-in-place section, and the water-stop steel plate is uniformly distributed in the first cast-in-place section and the second cast-in-place section;
6) Binding the steel bars in the second cast-in-situ layer 22 of the prefabricated laminated bottom plate, and binding the transverse steel bars in the second cast-in-situ layer with a rectangular steel bar cage;
7) Installing a flange mold outside the second cast-in-situ layer and the first cast-in-situ section of the prefabricated laminated bottom plate;
8) Casting the second cast-in-situ layer 22 and the first cast-in-situ section of the prefabricated laminated bottom plate by concrete until reaching the center line position of the water stop steel plate;
9) Removing the second cast-in-situ layer of the prefabricated laminated bottom plate and the outer side flange die of the first cast-in-situ section;
10 Hoisting the prefabricated sandwich side wall 1 with the vertical steel bars 13 in the first prefabricated layers at two sides extending downwards and bending relatively, placing the prefabricated sandwich side wall on a rectangular steel bar cage, and building a supporting system for the prefabricated sandwich side wall;
11 Binding the vertical reinforcement extension section of the prefabricated sandwich side wall 1 with the rectangular reinforcement cage 10;
12 Installing a flange die outside the second cast-in-situ section 6;
13 Pouring the first cast-in-situ layer 12 and the second cast-in-situ section 6 of the prefabricated sandwich side wall with concrete;
14 And (3) removing the flange mold at the outer side of the second cast-in-situ section.
The utility model has been described above by way of example with reference to the accompanying drawings, it is clear that the implementation of the utility model is not limited to the above-described manner, but it is within the scope of the utility model to apply the inventive concept and technical solution to other situations as long as various modifications of the technical solution of the utility model are adopted or without any modifications.
Claims (7)
1. The utility model provides a construction method of prefabricated sandwich side wall and prefabricated coincide bottom plate connected node structure, prefabricated sandwich side wall and prefabricated coincide bottom plate connected node structure includes prefabricated sandwich side wall (1) of vertical setting and prefabricated coincide bottom plate (2) of horizontal setting in prefabricated sandwich side wall below, prefabricated sandwich side wall includes first prefabricated layer (11) that are located both sides and first cast-in-place layer (12) in the centre, prefabricated coincide bottom plate includes second prefabricated layer (21) and second cast-in-place layer (22) that are located the bottom on the second prefabricated layer, equipartition many vertical rebar (13) in the two first prefabricated layers of prefabricated sandwich side wall, set up first truss muscle (14) between the vertical rebar in two first prefabricated layers, set up second truss muscle (9) between the horizontal rebar in second prefabricated layer and the second cast-in-place layer of prefabricated bottom plate, its characterized in that:
vertical steel bars in the first prefabricated layers at two sides of the prefabricated sandwich side wall extend downwards and are bent relatively, a steel bar base plate (3) is paved on the second prefabricated layer of the prefabricated superposed bottom plate, a rectangular steel bar cage (10) is arranged between the steel bar base plate and the prefabricated sandwich side wall, and the upper end of the rectangular steel bar cage is embedded with the vertical steel bars of the prefabricated sandwich side wall; a second prefabricated layer of the prefabricated laminated bottom plate is internally provided with split heads steel bars (4), the tops of the split heads steel bars are bent into a U shape and extend into the bottom of a rectangular steel bar cage positioned in the second cast-in-situ layer, and two ends of the split heads steel bars are bent and then extend into the second prefabricated layer; the second cast-in-place layer of the prefabricated laminated bottom plate and the joint of the prefabricated laminated bottom plate and the rectangular reinforcement cage are cast in situ with concrete and extend upwards for a distance to form a first cast-in-place section (5), and the first cast-in-place layer of the prefabricated sandwich side wall and the vertical reinforcement extension section of the prefabricated sandwich side wall are cast in situ with concrete to form a second cast-in-place section (6);
the construction method of the prefabricated sandwich side wall and prefabricated superposed bottom plate connection node structure comprises the following steps:
1) Paving a cushion layer on the underground pipe gallery foundation pit;
2) Paving a waterproof material on the cushion layer;
3) Hoisting a prefabricated laminated bottom plate (2) which is provided with a split heads steel bar (4) and a second truss steel bar (9) in advance, horizontally laying the prefabricated laminated bottom plate on a waterproof material, and simultaneously laying a steel bar backing plate (3) on a second prefabricated layer of the prefabricated laminated bottom plate at the position opposite to the prefabricated sandwich side wall;
4) Placing a rectangular reinforcement cage (10) on the reinforcement backing plate, and binding and fixing the rectangular reinforcement cage and the split heads together;
5) A water-stopping steel plate (7) is arranged in the middle of the rectangular reinforcement cage, namely at the boundary of the first cast-in-place section and the second cast-in-place section, and the water-stopping steel plate is uniformly distributed in the first cast-in-place section and the second cast-in-place section;
6) Binding the steel bars in a second cast-in-situ layer (22) of the prefabricated laminated bottom plate, and binding the transverse steel bars in the second cast-in-situ layer with a rectangular steel bar cage;
7) Installing a flange mold outside the second cast-in-situ layer and the first cast-in-situ section of the prefabricated laminated bottom plate;
8) Casting a second cast-in-situ layer (22) and a first cast-in-situ section of the prefabricated laminated bottom plate by concrete until the center line of the water stop steel plate is positioned;
9) Removing the second cast-in-situ layer of the prefabricated laminated bottom plate and the outer side flange die of the first cast-in-situ section;
10 Hoisting the prefabricated sandwich side wall (1) which extends down and bends relatively with the vertical steel bars (13) in the first prefabricated layers at the two sides, placing the prefabricated sandwich side wall on a rectangular steel reinforcement cage, and building a supporting system for the prefabricated sandwich side wall;
11 Binding the vertical reinforcement extension section of the prefabricated sandwich side wall with a rectangular reinforcement cage;
12 Installing a flange die outside the second cast-in-situ section (6);
13 A first cast-in-situ layer (12) and a second cast-in-situ section of the prefabricated sandwich side wall are poured by concrete;
14 And (3) removing the flange mold at the outer side of the second cast-in-situ section.
2. The construction method of the connecting node structure of the prefabricated sandwich side wall and the prefabricated superposed bottom plate according to claim 1, wherein the first cast-in-place section and the second cast-in-place section are adjacent, and a water stop steel plate (7) parallel to the vertical steel bars of the prefabricated sandwich side wall is arranged at the adjacent position.
3. The construction method of the prefabricated sandwich side wall and prefabricated superposed bottom plate connecting node structure according to claim 2, wherein the upper end and the lower end of the water stop steel plate are symmetrically arranged on the first cast-in-place section and the second cast-in-place section.
4. The construction method of the connection node structure of the prefabricated sandwich side wall and the prefabricated superposed bottom plate, which is characterized in that the vertical steel bars of the prefabricated sandwich side wall and the upper ends of the rectangular steel bar cages are bound together, and the transverse steel bars and the split heads steel bars in the second cast-in-situ layer of the prefabricated superposed bottom plate and the lower ends of the rectangular steel bar cages are bound together.
5. The construction method of the connection node structure of the prefabricated sandwich side wall and the prefabricated superposed bottom plate, which is characterized in that the split heads are bound with transverse steel bars in a second prefabricated layer of the prefabricated superposed bottom plate.
6. The construction method of the connection node structure of the prefabricated sandwich side wall and the prefabricated superposed bottom plate, which is characterized in that the second prefabricated layer of the prefabricated superposed bottom plate extends upwards outside the prefabricated sandwich side wall, so that the second prefabricated layer is arranged in an L shape at the end of the prefabricated superposed bottom plate.
7. The construction method of the prefabricated sandwich side wall and prefabricated superposed bottom plate connecting node structure according to claim 1, wherein a plurality of auxiliary connecting reinforcements (101) are arranged on the periphery of the rectangular reinforcement cage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710849545.3A CN107859059B (en) | 2017-09-20 | 2017-09-20 | Connecting node structure of prefabricated sandwich side wall and prefabricated superposed bottom plate and construction method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710849545.3A CN107859059B (en) | 2017-09-20 | 2017-09-20 | Connecting node structure of prefabricated sandwich side wall and prefabricated superposed bottom plate and construction method thereof |
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| CN107859059A CN107859059A (en) | 2018-03-30 |
| CN107859059B true CN107859059B (en) | 2023-04-28 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110924447A (en) * | 2019-11-22 | 2020-03-27 | 浙江大学 | Novel waterproof structure for construction joint of comprehensive pipe gallery and construction method |
| CN110924446A (en) * | 2019-11-22 | 2020-03-27 | 浙江大学 | Waterproof structure with prefabricated plate for construction joint of comprehensive pipe gallery and construction method |
| CN111173029A (en) * | 2020-01-10 | 2020-05-19 | 上海二十冶建设有限公司 | Prefabricated superposed assembly type underground comprehensive pipe gallery sandwich wallboard and construction method thereof |
| CN111173030A (en) * | 2020-01-10 | 2020-05-19 | 上海二十冶建设有限公司 | Prefabricated sandwich side wall and prefabricated superposed bottom plate connecting node structure and construction method thereof |
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| KR101001208B1 (en) * | 2010-08-30 | 2010-12-15 | 대한이.이엔.씨(주) | A constructing method of structure using sandwich pc-wall |
| CN202595937U (en) * | 2012-05-12 | 2012-12-12 | 中国十七冶集团有限公司 | T-type connecting structure of prefabricated sandwiched insulating external wall boards and internal wall |
| CN106193116B (en) * | 2016-08-31 | 2019-02-19 | 长沙远大住宅工业集团股份有限公司 | Overlap assembled underground pipe gallery wallboard positioning device |
| CN207348090U (en) * | 2017-09-20 | 2018-05-11 | 湖南远大工程设计有限公司 | Prefabricated sandwich side wall and prefabricated overlapping bottom plate connecting joint structure |
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