CN107366369B - Waterproof outer wall with high anti-seismic performance and construction method thereof - Google Patents

Abstract

The invention discloses a waterproof outer wall with high anti-seismic performance and a construction method thereof. The invention is composed of a bearing component, a filler wall and an outer waterproof wall body. An inner side infilled wall and an outer side waterproof wall are arranged between the bearing members, the bearing members and the outer side waterproof wall of the infilled wall are both cast in situ by reinforced concrete together to form an all-reinforced concrete waterproof outer wall, and the all-reinforced concrete waterproof outer wall and the infilled wall are connected reliably to form a high-earthquake-resistance double-layer wall together. The novel outer wall has good waterproof performance, multiple fortifications and outstanding performance in earthquake resistance, and has important significance for water resistance and earthquake resistance of the building outer wall.

Description

A kind of high seismic performance waterproof exterior wall and its construction method

Technical field:

The invention relates to the technical field of construction, in particular to a waterproof outer wall with high seismic performance, which belongs to the technical fields of waterproofing, seismic resistance of buildings and prefabricated buildings.

Background technique:

With the continuous development of urban construction in my country, the safety and service life of construction projects have attracted more and more attention. Waterproofing of building exterior walls plays a very important role in the use of buildings, especially under the requirements of building energy conservation, the role of waterproofing is becoming more and more important. However, due to the development of the diversity of building exterior walls, as well as the increase of building height and wind pressure, the leakage rate of exterior walls increases, which reduces the use function and thermal insulation performance of exterior walls as enclosure structures. Shortened service life of exterior walls. Therefore, more and more attention has been paid to the waterproof performance of building exterior walls.

In high-rise buildings, most of the structural forms are frame structures, shear wall structures and frame shear wall structures. Only part of the outer walls are reinforced concrete shear walls, and most of the remaining infill walls are masonry walls. However, because the reinforced concrete shear wall and the infill wall are two different materials, the linear expansion coefficients of the two materials are different, and the shrinkage and deformation of the two materials are not synchronized, resulting in interface cracks, which further leads to the problem of external wall leakage.

At present, domestic exterior wall waterproofing patents generally achieve exterior wall waterproofing by waterproofing the exterior wall structure or painting the exterior wall waterproof coating.

Wang Zhong disclosed a waterproof structure for building exterior walls (authorized announcement number: CN 206070765 U, application number: 201621102792.4), the exterior side of the building exterior wall structure from inside to outside sequentially includes: a wall structure layer; The leveling layer on the wall structure layer; the flexible waterproof layer arranged on the leveling layer; the surface layer arranged on the flexible waterproof layer; : a wall structure layer; a leveling layer arranged on the wall structure layer; an inorganic scale water-based epoxy resin paint waterproof and moisture-proof layer arranged on the leveling layer. The exterior wall of the building has two waterproof structures inside and outside, with simple structure and good waterproof and impermeability effect.

Luan Yinfeng et al. disclose an exterior wall waterproof structure (application publication number: CN 103924690 A, application number: 201410167693.3), the exterior wall waterproof structure includes a polymer cement waterproof coating layer, a stitched polyester cloth and a waterproof crack-resistant mortar layer , the polymer cement waterproof coating layer is coated on the outer wall thermal insulation layer or the leveling layer, the seam-woven polyester cloth is pasted on the polymer cement waterproof coating layer, and the waterproof and crack-resistant mortar layer is coated on the seam-woven polyester cloth. The waterproof structure of the outer wall is not easy to be damaged, and the waterproof effect is good.

Xu Desheng announced a waterproof coating for building exterior walls and a preparation method thereof (application publication number: CN 105062297A, application number: 201510563153.1). point. The waterproof coating for exterior walls of buildings can form a breathable and hydrophobic film with a certain depth on the exterior walls of buildings to prevent the intrusion of water.

The above query results show that at present, the waterproofing of domestic and foreign walls mainly stays in the simple outer wall surface layer stage, and to a large extent relies on simply setting multi-layer waterproof layers on the outer wall or simply painting the outer wall with waterproof paint to achieve the outer wall waterproofing. The rigid waterproof method with multi-layer waterproof layer has many procedures, complex construction, and no ductility; while the flexible waterproof method of paint waterproofing is greatly affected by temperature, the construction quality is not easy to guarantee, and may release harmful gases. Due to the different coefficients of linear expansion, the concrete shear wall and the infill wall produce interface cracks, which leads to the problem of cracking and leakage of the outer wall. The problem of waterproofing of the outer wall has not been eradicated.

On the other hand, my country is an earthquake-prone country, and the seismic defense line is particularly important. The more seismic defense lines, the better the protection of people's lives and property. The shear wall structure has been widely used due to its advantages of high lateral stiffness and small lateral displacement, but there are also many problems.

The traditional shear wall structure and its infill wall form two seismic lines of defense. When the earthquake comes, the infill wall acts as the first anti-seismic defense line to consume seismic energy. After the infill wall is damaged, the shear wall acts as the second anti-seismic defense line to consume seismic energy. However, the construction quality of the infill wall is uneven, sometimes the infill wall fails before it plays a role, and the shear wall directly consumes seismic energy as the only anti-seismic defense line. The safety of life and property cannot be fully guaranteed.

Gao Shuling et al. published a method for manufacturing a masonry wall with high shear resistance and high seismic performance (application publication number: CN 106592815 A, application number: 201611112963.6), the method includes the following steps: taking out the bricks, using polyvinyl alcohol Fiber-reinforced cement-based composite materials are used as masonry mortar, and the "three-one" masonry method is used for masonry; after the masonry is completed, both sides of the wall are plastered, and the plastering mortar is a high-toughness material; after plastering 1-7 Sprinkle the wall for curing within a few days, and then maintain it under outdoor environmental conditions until the age of 28 days to obtain a masonry wall. The method improves the shear resistance and seismic performance of masonry walls.

Cheng Yuxiang et al. published an anti-seismic shear wall (authorized announcement number CN 203684455 U, application number: 201420057772.4), the shear wall includes edge members, anti-seismic devices and corrugated steel plates. When it strikes, it can buffer the damage caused by the earthquake, reduce the disaster caused by the earthquake, and has a strong earthquake resistance.

The above query results show that at present, domestic seismic walls are mainly at the stage of strengthening the single-channel seismic defense line, and largely rely on the enhancement of the seismic performance of the infill wall or shear wall of the single-channel seismic defense line to improve the seismic fortification of the structure. Consider improving the seismic performance of the structure by relying on the form of adding seismic lines. This kind of structure relies on a single anti-seismic defense line for seismic resistance, and the unit cost to improve the seismic performance is relatively high, and the improvement range is limited, and it is easy to cause safety problems. At the same time, the use of prefabricated structures is easy to lead to leakage problems.

Based on the above research and analysis, a waterproof exterior wall structure with high seismic performance is proposed. This high seismic performance waterproof exterior wall structure has 3 composite seismic defense lines, the seismic performance is enhanced, and the safety reserve is improved. At the same time, the use of fully reinforced concrete structure significantly improves the waterproof performance of the building exterior wall.

Invention content:

The technical problem to be solved by the present invention is to provide a waterproof exterior wall with high seismic performance and a construction method thereof, so as to overcome the defects of the existing building exterior wall waterproofing, the single line of defense of the earthquake resistant system, etc. The multi-functional improvement of the composite anti-seismic line in one.

The present invention adopts following technical scheme:

A waterproof exterior wall with high seismic performance is composed of load-bearing components, a filling wall and an outer waterproof wall. An inner filling wall and an outer waterproof wall are arranged between the load-bearing components, and the load-bearing components and the outer waterproof wall of the filling wall are all made of reinforced concrete. The fully reinforced concrete waterproof outer wall is cast in situ together, and the fully reinforced concrete waterproof outer wall and the filling wall form a double wall with high seismic performance through reliable connection.

In the waterproof outer wall with high seismic performance, the load-bearing member is a shear wall or a frame column.

For the waterproof outer wall with high seismic performance, the wall body has openings or no openings according to design requirements.

In the waterproof outer wall with high seismic performance, the filling wall between the load-bearing components is a masonry wall, a prefabricated wall or a wall panel, which is formed by on-site masonry or prefabrication.

For the waterproof outer wall with high seismic performance, the filling wall between the load-bearing components adopts the construction methods of on-site masonry, hoisting or assembling.

For the waterproof outer wall with high seismic performance, the filling wall between the load-bearing components is constructed before the outer waterproof wall is poured, or is constructed after the outer waterproof wall is poured.

In the waterproof outer wall with high seismic performance, the connection between the filling wall between the load-bearing members and the load-bearing members on both sides is rigid connection or flexible connection.

The specific construction steps of the waterproof exterior wall with high seismic performance are as follows:

(a). Ground and floor construction: according to the design requirements, tie the steel bars and then pour the concrete to form;

(b) Set-out positioning: use a total station or theodolite to determine the axis of the load-bearing member, the outer waterproof wall and the infill wall, and determine the axis position of the load-bearing member, the outer waterproof wall and the infill wall on the ground or floor. Location;

(c). Preparation materials: materials mainly include infill wall materials, steel bars, commercial concrete and formwork;

(d). Construction of load-bearing components and outer waterproof wall: the load-bearing components and outer waterproof wall are all cast-in-place. After the positioning of the line is determined, the steel bars are tied according to the design requirements, and then the formwork is finally poured into concrete to form and maintain;

(e) Construction of infill wall: The infill wall is constructed to the corresponding elevation according to the design requirements, and the infill wall and the load-bearing members on both sides are connected into a whole through reliable connection to form a double-layer wall with high seismic performance.

Compared with traditional building technology, the advantages of the present invention are:

(1) The outer wall is a continuous fully reinforced concrete structure, and the waterproof performance has been significantly improved;

(2) The cast-in-place concrete load-bearing member, the cast-in-place concrete outer waterproof wall and the filling wall together form a double-layer wall with high seismic performance. There are 3 composite seismic defense lines, and the seismic performance of the building structure is greatly improved;

(3) When the inner filling wall is built first, it can be used as a formwork for the outer cast-in-place reinforced concrete wall, which reduces the project cost;

(4) The load-bearing wall can be integrally cast with the outer waterproof wall, and the construction is convenient and fast.

Description of drawings:

Figure 1 is a perspective view of a waterproof exterior wall with high seismic performance between shear walls

Figure 2 is a front view of a high seismic performance waterproof exterior wall between shear walls

Figure 3 is a top view of a waterproof exterior wall with high seismic performance between shear walls

Figure 4 is a perspective view of a waterproof exterior wall with high seismic performance between frame columns

Figure 5 is a front view of a waterproof exterior wall with high seismic performance between frame columns

Figure 6 is a top view of a waterproof outer wall with high seismic performance between frame columns

Figure 7 is a perspective view of a waterproof exterior wall with high seismic performance between a frame column and a shear wall

Figure 8 is a front view of a waterproof exterior wall with high seismic performance between a frame column and a shear wall

Figure 9 is a top view of a waterproof exterior wall with high seismic performance between a frame column and a shear wall

10 is a schematic perspective view of the first embodiment (shear wall form) of the high seismic performance waterproof exterior wall provided by the present invention;

FIG. 11 is a schematic perspective view of the second embodiment (frame column form) of the high seismic performance waterproof outer wall provided by the present invention;

FIG. 12 is a schematic perspective view of the third embodiment (frame column and shear wall form) of the waterproof outer wall with high seismic performance provided by the present invention.

The reference numerals are explained as follows:

1- cast-in-place reinforced concrete shear wall; 2- cast-in-place reinforced concrete waterproof wall on the outside; 3- masonry wall, prefabricated wall or wall panel as filling wall on the inside; 4- cast-in-place reinforced concrete frame column; 5- Building interior walls.

Detailed ways:

In order for those skilled in the art to better understand the technical solutions provided by the present invention, the present invention will be described in detail below with reference to embodiments.

Embodiment 1 adopts the form of waterproof outer wall between shear walls, the filling wall is a masonry wall, and the construction method is on-site masonry; Embodiment 2 adopts the form of waterproof outer wall between frame columns, the filling wall is a prefabricated wall, and the construction method is hoisting ; Implementation example 3 adopts the form of a waterproof outer wall between the frame column and the shear wall, the filling wall is a wall panel, and the construction method is hoisting and assembling.

Implementation Example 1:

As shown in Fig. 1, the waterproof outer wall with high seismic performance is composed of a shear wall (1), a filling wall (3) and an outer waterproof wall (2), and an inner side is arranged between the shear walls (1). The infill wall (3), the outer waterproof wall (2), the shear wall (1) and the outer waterproof wall (2) of the infill wall are all made of reinforced concrete and cast together to form a fully reinforced concrete waterproof outer wall, and a fully reinforced concrete waterproof outer wall A double-layer wall with high seismic performance is formed together with the filling wall (3) through reliable connection.

In the waterproof outer wall with high seismic performance, the load-bearing member is a shear wall (1).

For the waterproof outer wall with high seismic performance, the wall body has openings according to design requirements.

In the waterproof outer wall with high seismic performance, the filling wall (3) between the shear walls (1) is a masonry wall, which is formed by on-site masonry.

The waterproof outer wall with high seismic performance, the filling wall (3), adopts the construction method of on-site masonry.

The waterproof outer wall with high seismic performance, the filling wall (3), is constructed after the outer waterproof wall body (2) is poured.

The waterproof outer wall with high seismic performance, the filling wall (3), is connected with the shear walls (1) on both sides in a flexible connection.

The specific construction steps of the waterproof exterior wall with high seismic performance are as follows:

(a). Ground and floor construction: according to the design requirements, tie the steel bars and then pour the concrete to form;

(b) Set-out positioning: use a total station or theodolite to determine the axes of the shear wall (1), the outer waterproof wall (2) and the filling wall (3), and determine the shear wall (1) on the ground or floor. 1), the axis position of the outer waterproof wall (2) and the position of the filling wall (3);

(c). Preparation materials: materials mainly include infill wall materials, steel bars, commercial concrete and formwork;

(d). Construction of the shear wall (1) and the outer waterproof wall (2): the shear wall (1) and the outer waterproof wall (2) are all cast-in-place. It is required to tie the reinforcement after the formwork, and finally pour the concrete to form and maintain;

(e). Construction of the infill wall (3): The infill wall (3) is constructed to the corresponding elevation according to the design requirements, and the infill wall (3) and the shear walls (1) on both sides are connected into a whole through reliable connection to form a common structure. High seismic performance double wall.

Implementation Example 2:

As shown in Fig. 4, the waterproof outer wall with high seismic performance is composed of frame columns (4), filling walls (3) and outer waterproof walls (2), and inner filling walls are arranged between the frame columns (4). (3) and the outer waterproof wall (2), the frame column (4) and the outer waterproof wall (2) of the filling wall are all made of reinforced concrete cast in situ to form a fully reinforced concrete waterproof outer wall, a fully reinforced concrete waterproof outer wall and a filling wall (3) A double-layer wall with high seismic performance is formed by reliable connection.

In the waterproof outer wall with high seismic performance, the load-bearing members are frame columns (4).

For the waterproof outer wall with high seismic performance, the wall body has openings according to design requirements.

In the waterproof outer wall with high seismic performance, the filling wall (3) between the frame columns (4) is a prefabricated wall, which is formed in a prefabricated manner.

The waterproof outer wall with high seismic performance, the filling wall (3), adopts the construction method of on-site hoisting.

The waterproof outer wall with high seismic performance, the filling wall (3), is constructed after the outer waterproof wall body (2) is poured.

For the waterproof outer wall with high seismic performance, the filling wall (3) is connected with the frame columns (4) on both sides in a flexible connection.

The specific construction steps of the waterproof exterior wall with high seismic performance are as follows:

(a). Ground and floor construction: according to the design requirements, tie the steel bars and then pour the concrete to form;

(b) Set-out positioning: use a total station or theodolite to determine the axis of the frame column (4), the outer waterproof wall (2) and the filling wall (3), and determine the frame column (4) on the ground or floor. , the axis position of the outer waterproof wall (2) and the position of the filling wall (3);

(c). Preparation materials: materials mainly include infill wall materials, steel bars, commercial concrete and formwork;

(d). Construction of the frame column (4) and the outer waterproof wall (2): The frame column (4) and the outer waterproof wall (2) are all cast-in-place. Reinforced back formwork, and finally poured concrete to form and maintain;

(e). Construction of the infill wall (3): The infill wall (3) is constructed to the corresponding elevation according to the design requirements. The infill wall (3) and the frame columns (4) on both sides are connected into a whole through reliable connection, and together they form a high level. Seismic performance double wall.

Implementation Example 3:

As shown in Figure 7, the high seismic performance waterproof outer wall is composed of a shear wall (1), a frame column (4), a filling wall (3) and its outer waterproof wall (2). (1) An inner filling wall (3) and an outer waterproof wall (2) are arranged between (1) and the frame column (4), and the shear wall (1), the frame column (4) and the outer waterproof wall (2) of the filling wall are all made of The reinforced concrete is cast together to form a fully reinforced concrete waterproof outer wall, and the fully reinforced concrete waterproof outer wall and the filling wall (3) form a double wall with high seismic performance through reliable connection.

In the waterproof outer wall with high seismic performance, the load-bearing components are a shear wall (1) and a frame column (4).

For the waterproof outer wall with high seismic performance, the wall body has openings according to design requirements.

In the waterproof outer wall with high seismic performance, the filling wall (3) between the shear wall (1) and the frame column (4) is a wall panel, which is formed by prefabrication.

The waterproof outer wall with high seismic performance and the filling wall (3) adopt the construction method of on-site hoisting and assembling.

The waterproof outer wall with high seismic performance, the filling wall (3), is constructed after the outer waterproof wall body (2) is poured.

The waterproof outer wall with high seismic performance, the filling wall (3), is connected with the shear walls (1) and frame columns (4) on both sides in a flexible connection.

The specific construction steps of the waterproof exterior wall with high seismic performance are as follows:

(a). Ground and floor construction: according to the design requirements, tie the steel bars and then pour the concrete to form;

(b) Set-out positioning: use a total station or theodolite to determine the axes of the shear wall (1), the frame column (4), the outer waterproof wall (2) and the filling wall (3). Determine the axial position of the shear wall (1), the frame column (4), the outer waterproof wall (2) and the position of the filling wall (3);

(c). Preparation materials: materials mainly include infill wall materials, steel bars, commercial concrete and formwork;

(d). Construction of shear wall (1), frame column (4), outer waterproof wall (2): shear wall (1), frame column (4), outer waterproof wall (2) are all cast-in-place After the positioning of the line is determined, the rear formwork is bound by the reinforcement according to the design requirements, and finally the concrete is poured to form and maintain;

(e). Construction of the infill wall (3): The infill wall (3) is constructed to the corresponding elevation according to the design requirements, and the infill wall (3) is connected with the shear walls (1) and frame columns (4) on both sides through reliable connection. Connected as a whole, they together form a double-layer wall with high seismic performance.

The above-mentioned examples are only used to illustrate several preferred schemes of the present application, and do not constitute any restrictions on the protection scope of the present application. The usual changes and replacements performed by those skilled in the art within the scope of the present application should be included in the protection of the present application. within the range.

Claims (7)

1. The utility model provides a waterproof outer wall of high anti-seismic performance, characterized by: the reinforced concrete waterproof wall is characterized in that the reinforced concrete waterproof wall and the filler wall are connected reliably to form a high-earthquake-resistance double-layer wall, and the concrete steps are as follows:

(a) construction of ground and floor: binding steel bars according to design requirements, and pouring concrete for molding;

(b) paying off and positioning: determining the axes of the bearing member, the outer waterproof wall and the infilled wall by using a total station or a theodolite, and determining the axis positions of the bearing member, the outer waterproof wall and the infilled wall on the ground or a floor slab;

(c) preparing materials: the material mainly comprises a filling wall material, a reinforcing steel bar, commercial concrete and a template;

(d) construction of the bearing member and the outer waterproof wall body: the bearing member and the outer waterproof wall body are in a full cast-in-place mode, after the position is determined by paying off and positioning, reinforcing steel bars are bound according to design requirements, a formwork is erected, and finally concrete is poured, formed and maintained;

(e) constructing a filler wall: the filler wall is constructed to the corresponding elevation according to the design requirement, and the filler wall and the bearing members at the two sides are connected into a whole in a reliable connection mode to jointly form the high-seismic-resistance double-layer wall.

2. The waterproof exterior wall with high earthquake resistance as claimed in claim 1, wherein: the bearing component is a shear wall or a frame column.

3. The waterproof exterior wall with high earthquake resistance as claimed in claim 1, wherein: the wall body is provided with or without a hole according to the design requirement.

4. The waterproof exterior wall with high earthquake resistance as claimed in claim 1, wherein: the filler wall among the bearing members is a masonry wall, a prefabricated wall or a wallboard and is formed in a field masonry or prefabrication mode.

5. The waterproof exterior wall with high earthquake resistance as claimed in claim 1, wherein: the infilled wall between the bearing members adopts the construction mode of on-site masonry, hoisting or assembly.

6. The waterproof exterior wall with high earthquake resistance as claimed in claim 1, wherein: and the filler wall between the bearing members is constructed before the outer side waterproof wall body is poured, or constructed after the outer side waterproof wall body is poured.

7. The waterproof exterior wall with high earthquake resistance as claimed in claim 1, wherein: the connection mode of the infilled wall between the load-bearing members and the load-bearing members on the two sides is rigid connection or flexible connection.

Images