CN118564104A - New and old building nested composite structure capable of utilizing old and stable in internal environment - Google Patents

Abstract

The invention relates to the technical field of construction measures for existing buildings, and discloses a nested duplex structure of old and new buildings that can be reused and has a stable internal environment. The large-sized old building is renovated by separating the building function and the building appearance, and only the outer shell is retained for the decorative outer cover, and the building function is realized by the new building in the outer shell, so that the total load of the old building is reduced instead of increased, and even the force-bearing structure of the old building can meet the demand. The window openings of the curtain wall windows and side windows of special sizes are utilized to overcome the interference problem caused by the nesting of the new and old two-story buildings on the construction, so that the construction of the nested building is feasible and the internal ventilation and lighting problems are overcome after the construction; and the characteristic that the walkway between the decorative outer cover and the new building is annular is utilized to arrange the regional electric smoke barrier vertical wall and the channel electric smoke barrier vertical wall, so that the fire area can be quickly isolated and smoke exhausted; the above three points are combined to form a nested duplex structure of old and new buildings that can be reused and has a stable internal environment under the premise of retaining the building appearance.

Description

A nested duplex structure of old and new buildings that can be reused and has a stable internal environment

Technical Field

The invention relates to the technical field of construction measures for existing buildings, and in particular to a new and old building nested duplex structure which can utilize old buildings and has a stable internal environment.

Background Art

The fate of most old buildings is to be demolished to make way for the construction of new buildings, but there are some old buildings with special significance that need to be changed in use while retaining their original appearance, which requires in-depth renovation of the buildings.

Considering that the old building itself has been seriously aged, its structural strength has seriously declined, and its appearance has become very dilapidated. These problems are difficult to solve without deep transformation of the building itself. Therefore, the transformation of old buildings often needs to be carried out in the form of dismantling into parts and reassembling. During the dismantling process, the building parts can be tested separately and the parts that do not meet the strength standards or are seriously damaged can be replaced. The internal reinforcement treatment can be carried out or the internal layout of the building can be changed to adapt to the changes in the use of the building.

However, this method of demolition and modification is not applicable to some large-scale old buildings. The biggest problem is that in large-scale old buildings, due to their large size, they have low rigidity, are prone to deformation, and have difficulty meeting strength standards. In order to maintain their shape, they often need to use components such as reinforced concrete beams and columns/shear walls that have high rigidity but are not suitable for disassembly into parts. In addition, as old buildings have been around for a long time, construction specifications may change. Buildings in some places may not be allowed to be reassembled into their original size after being disassembled into parts due to height restrictions and other factors.

Take the Jinyu Xingfa Science Park project in the northern area of Beijing Huairou Science City as an example. The project site is Xingfa Cement Factory, which was built in the early 1990s and contributed a large amount of building materials to Beijing's urban construction. It is an important industrial heritage site. Therefore, the buildings there need to be transformed into research facilities of the nearby Beijing Yanqi Lake Institute of Applied Mathematics while retaining their appearance. The warehouse needs to be converted into a multi-story supercomputer room. The warehouse is a typical single-story large-span building with weak bearing capacity and is very dilapidated. It is completely unable to bear the added floor slabs and complex electronic equipment. At the same time, its interior cannot meet the environmental requirements of supercomputer equipment. Its brick-concrete composite structure is not allowed to be dismantled and reassembled. In addition, building new buildings in industrial heritage sites is different from building directly on the foundation. It is necessary to consider how to prevent the old buildings from interfering with the construction process or how to use the old buildings to complete the smooth construction. There are also many inapplicable aspects of its internal layout and ventilation using conventional buildings. Similar problems are common in the transformation of the three batches of industrial heritage sites across the country. What is even more fatal is that even if we do not consider the protection of industrial heritage sites, due to the local height limit policy, it is not feasible to demolish the building and rebuild a new one in the same appearance as the original one.

In addition to the above problems that affect building renovation, old buildings also have problems that affect their use. When old buildings were constructed, there was no design concept that pursues high comfort and energy saving, such as passive insulation and large-area natural lighting. In addition, the fire protection adaptation often cannot keep up with the modern automatic fire protection system. They often use masonry structures in many places, which is not conducive to hanging heavy objects on the surface.

Summary of the invention

The invention provides a new and old building nested duplex structure which can utilize old buildings and has a stable internal environment.

The technical problem to be solved is: during the renovation and utilization of large-scale old buildings, it is impossible to maintain the shape of the buildings by dismantling them into parts and then reassembling them, because high-rigidity but non-demolishable components such as reinforced concrete beams and columns or shear walls are needed. How to achieve reasonable fire protection and ventilation in large-scale old buildings?

In order to solve the above technical problems, the present invention adopts the following technical scheme: a nested duplex structure of old and new buildings that can be reused and has a stable internal environment, comprising a decorative cover formed by reinforcing the old building and a new building arranged in the decorative cover, wherein the top view of the decorative cover is rectangular, a wall at either end in the length direction of the decorative cover is provided with a window hole for installing a curtain wall window, and two side walls in the length direction of the decorative cover and a wall on the side opposite to the curtain wall window are provided with a window hole for installing a side window, a glass curtain wall is installed in the window hole of the curtain wall window, and transparent glass and/or blinds are installed in the window hole of the side window, the top surface of the side window is higher than the top floor of the new building, and the bottom surface of the side window is lower than the low ceiling of the new building, and the remaining outer walls of the decorative cover except the window holes of the curtain wall window and the window holes of the side window are wrapped with a layer of decorative material for imitating the original appearance of the outer wall of the old building and protecting the outer wall of the old building;

The reinforcement structure of the old building includes a non-load-bearing wall reinforcement structure, in which a reinforcement groove is opened in the wall at the top of the window opening of the side window, a lintel is installed in the reinforcement groove, and the window opening of the curtain wall window vertically extends to the roof of the old building; a reinforced concrete load-bearing wall reinforcement structure, in which a groove is opened in the outer wall, a hidden column is installed in the groove, and a lintel is installed at the top of the window opening of the curtain wall window; a masonry load-bearing wall reinforcement structure, in which a groove is opened in the outer wall, a hidden column is installed in the groove, a reinforcement groove is opened in the wall at the top of the window opening of the side window, a lintel is installed in the reinforcement groove, and the window opening of the curtain wall window vertically extends to the roof of the old building, and the floor slab of the new building extends horizontally outward to the outer wall position of the decorative cover to form a suspended indoor corridor, and the indoor corridor is a cantilevered corridor.

Furthermore, the new building includes multiple lower functional areas, a lobby arranged between the lower functional areas and the curtain wall windows, an upper functional area arranged between the multiple lower functional areas, and aisles arranged between adjacent lower functional areas and between the lower functional areas and the decorative cover. IT data rooms are arranged in the upper and lower functional areas. A fresh air room, a post-accident ventilation room, a power distribution room and a smoke exhaust room are separated on one side of the IT data room by walls. A smoke extraction pipe and an exhaust pipe are extended outward from the smoke exhaust room. The smoke extraction pipe extends into any other machine room, and the exhaust pipe extends to the side window. Exhaust shutters are arranged on the upper part of the side window, and the outlet of the exhaust pipe is connected to the exhaust shutters. The door of any independent room in the lower functional area and the upper functional area faces the side window.

Furthermore, the new building also includes regional electric smoke barriers and channel electric smoke barriers. The regional electric smoke barriers are arranged between adjacent supporting columns of the lower functional area and at the stair exits of the lower functional area and the upper functional area, and the channel electric smoke barriers are arranged between the new building and the walkway of the decorative cover.

Furthermore, the non-top floor of the new building is a computer room for centrally installing computer and/or data center cabinets. The air inlet and outlet of the cabinet radiator are both shutters on the top of the side windows, and the bottom of the side windows with shutters is a glass window.

Furthermore, a reinforced concrete ground beam is buried in the ground at the bottom of the curtain wall window, a sky beam is arranged at the top of the curtain wall window adjacent to the roof, inner columns are arranged at intervals in the curtain wall window, and the upper and lower ends of the inner columns are respectively fixedly connected to the sky beam and the ground beam, and a soft inlaid edging structure is arranged on the edge of the glass in the curtain wall window, and the soft inlaid edging structure is used to ensure that the glass of the curtain wall window is not damaged when the curtain wall expands or contracts due to heat.

Furthermore, the keel grid of the curtain wall window is provided with a door frame, and a glass door leaf is installed in the door frame.

Furthermore, a flexible decorative panel is provided at the joint between the cantilevered end of the cantilevered corridor and the outer wall of the decorative outer cover, the flexible decorative panel is fixedly connected to the cantilevered end of the cantilevered corridor, the flexible decorative panel is not connected to the inner side of the inner wall of the decorative outer cover, and the gap between the curtain wall window and the new building is set as a foyer.

Furthermore, the decorative cover includes walls arranged vertically on all sides, a roof arranged on the top of the walls, and a plane tripod arranged on the top inside the roof. The plane tripods are arranged in multiple intervals along the length direction of the decorative cover, and both ends of the length direction of the multiple plane tripods are fixed to the top of the wall. There is a cavity between the plane tripod and the ground of the decorative cover, and the bottom elevation of the multiple plane tripods is higher than the top elevation of the new building.

Furthermore, the window opening of the side window is provided with an installation hole with a smooth and flat hole wall, and the glass window sash of the side window is supported on the hole wall of the installation hole.

Furthermore, the outer wall of the decorative outer cover is a plain brick wall, and the decorative material on the outer wall of the decorative outer cover is a PK brick.

Compared with the prior art, the nested duplex structure of old and new buildings of the present invention, which can reuse old buildings and has a stable internal environment, has the following beneficial effects:

In the present invention, the idea of separating function from appearance is adopted to renovate large-scale old buildings. The old building only retains its outer shell as a decorative cover to maintain the building appearance, and the function of the building is realized by the newly built building inside the decorative cover, so that the old building not only does not need to bear new loads, but its original load is only left with the roof and decorative materials, and even the load-bearing structure of the old building can meet the demand.

At the same time, by using the special-sized curtain wall windows and side window openings, the interference problem caused by the nesting of the old and new buildings was overcome (construction vehicles and equipment could not enter, building materials and waste materials could not be hoisted, and the concrete pouring pump pipe was blocked), making the construction of this nested building feasible, and overcoming the ventilation and lighting problems inside the nested building after construction;

The old building is wrapped with new decorative materials that imitate the appearance of the old building, so that the dilapidated appearance of the old building is completely renovated and protected at the same time;

Taking advantage of the circular shape of the corridor between the decorative cover and the new building, the regional electric smoke shielding wall and the passage electric smoke shielding wall are arranged to quickly isolate a part of the corridor into an independent small space. Together with the smoke exhaust room and the smoke exhaust pipeline, efficient fire prevention and smoke exhaust effects can be achieved, greatly protecting the equipment in the room.

By combining the above four points, the renovation of a large-scale old building was completed while retaining the building's appearance. At the same time, the double-layer nested structure makes the internal environment of the new building more stable (the new building does not need to face direct sunlight, wind, rain, snow, and dust), and has good ventilation and fire protection functions, which can better meet various occasions with high requirements for environmental stability, including computer rooms.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a plan view of a building in a duplex structure of old and new buildings that can be reused and has a stable internal environment according to the present invention;

FIG2 is a schematic diagram of the structure of a curtain wall window;

FIG3 is a plan view of the upper functional area in a duplex structure of old and new buildings that can be reused and has a stable internal environment;

FIG. 4 is a schematic structural diagram of a section of the outer wall of the decorative housing including the side windows.

In the figure, 1. decorative cover; 11. curtain wall window; 111. glass curtain wall; 112. door frame; 12. side window; 121. transparent glass; 122. shutters; 2. new building; 21. lower functional area; 22. foyer; 23. upper functional area; 24. walkway; 25. smoke exhaust room; 26. regional electric smoke barrier vertical wall; 27. channel electric smoke barrier vertical wall; 3. indoor corridor.

DETAILED DESCRIPTION

Taking the Jinyuxingfa Science Park project in the northern area of Huairou Science City in Beijing as an example, as shown in Figures 1 and 4, a nested duplex structure of old and new buildings that can be reused and has a stable internal environment includes a decorative cover 1 formed by reinforcing the old building and a new building 2 arranged in the decorative cover 1. The top view of the decorative cover 1 is rectangular, and a window hole for installing a curtain wall window 11 is opened on the wall at either end of the length direction of the decorative cover 1. The walls on both sides of the length direction of the decorative cover 1 and the wall on the side opposite to the curtain wall window 11 are opened. There is a window opening for installing a side window 12, a glass curtain wall 111 is installed in the window opening of the curtain wall window 11, a transparent glass 121 and/or a shutter 122 is installed in the window opening of the side window 12, the top surface of the side window 12 is higher than the top floor of the new building 2, and the bottom surface of the side window 12 is lower than the lower ceiling of the new building 2. The decorative cover 1 is wrapped with a layer of decorative material for imitating the original appearance of the old building's exterior wall and protecting the old building's exterior wall except the window openings of the curtain wall window 11 and the window openings of the side window 12.

The reinforcement structure of the old building includes a non-load-bearing wall reinforcement structure, in which a reinforcement groove is opened in the wall at the top of the window opening of the side window 12, a lintel is installed in the reinforcement groove, and the window opening of the curtain wall window 11 extends vertically to the roof of the old building; a reinforced concrete load-bearing wall reinforcement structure, in which a groove is opened in the outer wall, a hidden column is installed in the groove, and a lintel is installed at the top of the window opening of the curtain wall window 11; a masonry load-bearing wall reinforcement structure, in which a groove is opened in the outer wall, a hidden column is installed in the groove, and a wall at the top of the window opening of the side window 12 is opened. A reinforcement groove is provided, in which a lintel is installed. The window opening of the curtain wall window 11 extends vertically to the roof of the old building, and the floor slab of the new building 2 extends horizontally outward to the outer wall of the decorative cover 1 to form a suspended indoor corridor 3. The indoor corridor 3 is a cantilevered corridor. When holes are drilled on the outer wall of the old building to avoid interference between the inner and outer buildings, the bearing capacity of the outer wall of the old building will decrease. Therefore, arranging the reinforcement structure in advance before drilling the holes can effectively improve the bearing capacity of the outer wall of the old building and ensure construction safety.

It should be noted that the window opening of the curtain wall window 11 is used for material transportation during the construction process and as part of the building lighting after the construction is completed. Therefore, the window opening of the curtain wall window 11 needs to meet the following conditions:

1. All vehicles and machinery required for construction inside the old building can pass through;

Here, a narrow wall of an old building is usually chosen, and the entire wall is demolished and replaced with a glass curtain wall111.

2. Installed on the sunny side of the building;

The glass curtain wall 111 here is the main lighting channel, which is located on the south side of the building in the northern hemisphere and on the north side of the building in the southern hemisphere.

3. The old building components around the window opening will not fall off;

The curtain wall window 11 is a very special structure. It is not attached to the wall like a conventional curtain wall, but installed like a window. Therefore, its glass needs to be fixed by the keel grid, and the periphery also needs to be fixed. The old building components around the window hole need to fix the edge of the curtain wall window 11, and must ensure that it can be stable after the hole is opened.

The window openings of the side windows 12 also require material transportation. After construction is completed, they serve as part of the building's lighting and ventilation. Therefore, the window openings of the side windows 12 meet the following conditions: 1. They are set at intervals around the exterior wall of the old building; this requirement is for ventilation and lighting, and secondly, to ensure that all construction locations can find a relatively close side window 12 window opening.

2. The top is higher than the top floor of the new building 2 to be built inside the old building, and the bottom is lower than the lower ceiling of the new building 2 to be built inside the old building;

Since the window openings of the side windows 12 need to transport various materials, they need to be high enough and low enough to meet the needs of construction on all floors.

There is a gap between the outer wall of the new building 2 and the outer wall of the old building for people to pass through. Since there is no connection between the new building 2 and the old building, there is a gap between the two. Here, it is ensured that the gap can be passed by pedestrians so that these gaps can be used as corridors to make up for the problem caused by the reduced size of the new building 2 due to being inside the old building.

The top floor of New Building 2 is an open structure without a roof;

The construction of the top roof of the new building 2 will be seriously interfered by the roof of the decorative outer cover 1, and the construction cannot be completed normally. Here, the nested structural characteristics of the decorative outer cover 1 and the new building 2 can be utilized to directly utilize the roof of the decorative outer cover 1. If the roof of the decorative outer cover 1 is damaged, it can be repaired or replaced in advance. The roof itself does not need to bear loads other than its own weight. Therefore, the roof panels can be replaced with confidence.

The materials of the new building 2 can be transported or hoisted through the window openings of the curtain wall window 11 or the window openings of the side windows 12 according to their own sizes. The slag in the decorative cover 1 is loaded and transported along the window openings of the curtain wall window 11, and the remaining waste is hoisted out from the window openings of the side windows 12 closest to the waste;

The side windows 12 have the characteristics of being densely arranged, with the top being high and the bottom being low, so that the construction process of the new building 2 is not interfered with by the decorative cover 1 .

As shown in FIGS. 1 and 3 , the new building 2 includes a plurality of lower functional areas 21, a lobby 22 arranged between the lower functional areas 21 and the curtain wall windows 11, an upper functional area 23 arranged between the plurality of lower functional areas 21, and a walkway 24 arranged between adjacent lower functional areas 21 and between the lower functional areas 21 and the decorative cover 1. Both the upper functional area 23 and the lower functional area 21 are provided with IT data rooms. One side of the IT data room is separated by a wall with a fresh air room, a post-accident ventilation room, a power distribution room and a smoke exhaust room 25. The smoke exhaust room 25 faces outward. A smoking pipe and a smoke exhaust pipe are extended on the side. The smoking pipe extends to any other machine room, and the smoke exhaust pipe extends to the side window 12. An exhaust louver is arranged on the upper part of the side window 12. The outlet of the smoke exhaust pipe is connected to the exhaust louver. The door of any independent room in the lower functional area 21 and the upper functional area 23 faces the side window 12. The top floor of the new building 2 is an open-top structure without a roof. The construction of the roof of the top floor of the new building 2 will be seriously interfered by the lack of a roof in the old building, and the construction cannot be completed normally. Therefore, the roof of the new building 2 is simply abandoned here, and the roof of the old building is directly used. If the roof of the old building is damaged, it should be renovated here, that is, the roof board should be replaced. Unlike the exterior wall, the roof itself does not need to bear loads other than its own weight, so the roof board can be easily replaced.

As shown in Figures 2 and 3, the new building 2 also includes a regional electric smoke barrier 26 and a channel electric smoke barrier 27. The regional electric smoke barrier 26 is arranged between adjacent supporting columns of the lower functional area 21 and at the staircase exits of the lower functional area 21 and the upper functional area 23. The channel electric smoke barrier 27 is arranged between the new building 2 and the walkway 24 of the decorative cover 1. By utilizing the fact that the decorative cover 1 and the new building 2 are not in contact, a ring-shaped walkway 24 is formed between the decorative cover 1 and the new building 2, thereby reducing the difficulty of arranging the electric smoke barrier. At the same time, the regional electric smoke barrier 26 and the channel electric smoke barrier 27 can be taken off and lowered by human control. When a fire occurs in a certain area, the fire area can be isolated into an independent small space and smoke can be exhausted by controlling the regional electric smoke barrier 26 and the channel electric smoke barrier 27 nearest to the area, thereby preventing the spread of smoke, improving the smoke exhaust efficiency, and reducing the impact of the fire on the entire building. The main difference between the two types of smoke barrier walls is the different positions of their partitions. The channel electric smoke barrier wall 27 is used to separate the aisle 24, and the area electric smoke barrier wall 26 is used to separate each area.

The non-top floor of the new building 2 is a computer room for centrally installing computer and/or data center cabinets. The air inlet and outlet of the cabinet radiator are both shutters 122 at the top of the side window 12. The bottom of the side window 12 with the shutter 122 is a glass window.

As shown in Figure 2, a reinforced concrete ground beam is buried in the ground at the bottom of the curtain wall window 11, a sky beam is arranged at the top of the curtain wall window 11 adjacent to the roof, inner columns are arranged at intervals in the curtain wall window 11, and the upper and lower ends of the inner columns are fixedly connected to the sky beam and the ground beam respectively. A soft inlaid edging structure is arranged on the edge of the glass in the curtain wall window 11, and the soft inlaid edging structure is used to ensure that the glass of the curtain wall is not damaged when the curtain wall window 11 expands and contracts due to heat.

The ground beam is provided with an inlay groove for fixing the bottom of the curtain wall window 11, or a bracket for fixing the bottom of the curtain wall window 11 is anchored;

The left and right sides of the curtain wall window 11 are fixedly connected with the outer wall of the old building.

The curtain wall window 11 is fixed in a stable frame similar to a window frame, and a keel grid is installed in the stable frame. The glass in the curtain wall window 11 is inlaid in the keel grid in a soft inlay edging manner to form an installation frame for the glass curtain wall.

The keel grid of the curtain wall window 11 is provided with a door frame 112, and a glass door leaf is installed in the door frame 112, and the door can also serve as a lighting opening.

A flexible decorative panel is provided at the joint between the cantilevered end of the cantilevered corridor and the outer wall of the decorative outer cover 1. The flexible decorative panel is fixedly connected to the cantilevered end of the cantilevered corridor, and the flexible decorative panel is not connected to the inner side of the inner wall of the decorative outer cover 1. The gap between the curtain wall window 11 and the new building 2 is set as a foyer 22.

The decorative outer cover 1 includes walls arranged vertically on all sides, a roof arranged on the top of the walls, and a plane tripod arranged on the top of the roof. The plane tripod is arranged in multiple intervals along the length direction of the decorative outer cover 1, and both ends of the multiple plane tripods in the length direction are fixed to the top of the wall. There is a cavity between the plane tripod and the ground of the decorative outer cover 1. The bottom elevations of the multiple plane tripods are higher than the top elevation of the new building 2. A cavity is set between the plane tripod and the ground of the decorative outer cover 1, so that vehicles can drive into the old building.

The window opening of the side window 12 is provided with an installation hole with a smooth and flat hole wall, and the glass window sash of the side window 12 is supported on the hole wall of the installation hole.

The outer wall of the decorative cover 1 is a plain brick wall, and the decorative material on the outer wall of the decorative cover 1 is PK brick. Since the appearance of the old building is shabby and has fallen into disrepair, the decorative material can be used to completely complete the renovation of the building appearance at a low cost and in a short time. At the same time, the old wall can be protected, the impact of weathering can be reduced, and the aesthetics of the building appearance can be improved. The PK brick can simulate the appearance of the plain brick wall.

If there are tiles on the exterior walls of the old building, you can re-tile them. If there are stone slabs on the exterior walls of the old building, you can clean and repair them and then apply real stone paint. If the exterior walls of the old building are plain concrete walls, re-apply a layer of plain concrete. If the exterior walls of the old building are lime plastered, remove the lime and re-plaster them.

The embodiments described above are merely descriptions of preferred implementation modes of the present invention and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims (10)

1. The utility model provides a new and old building nested duplex structure that can utilize old and inside stable environment which characterized in that: the building decoration structure comprises a decoration outer cover (1) formed by reinforcing an old building and a new building (2) arranged in the decoration outer cover (1), wherein the top view of the decoration outer cover (1) is rectangular, a window hole for installing a curtain wall window (11) is formed in any one wall body in the length direction of the decoration outer cover (1), window holes for installing side windows (12) are formed in two wall bodies in the length direction of the decoration outer cover (1) and one wall body opposite to the curtain wall window (11), glass curtain walls (111) are arranged in the window holes of the curtain wall window (11), transparent glass (121) and/or shutter (122) are arranged in the window holes of the side windows (12), the top surface of the side windows (12) is higher than the top floor of the new building (2), the bottom surface of the side windows (12) is lower than the bottom ceiling of the new building (2), and a layer of the outer cover (1) except the window holes of the curtain wall (11) and the rest outer walls of the window holes of the side windows (12) is wrapped with decorative materials for simulating the original appearance of the building and protecting the old building outer wall;

The reinforcing structure of the old building comprises a non-bearing wall reinforcing structure, a reinforcing groove is formed in a wall body at the top of a window hole of a side window (12), a lintel is arranged in the reinforcing groove, and the window hole of a curtain wall window (11) vertically extends to a roof of the old building; the reinforced concrete bearing wall reinforcing structure is characterized in that a slot is formed in an outer wall of the reinforced concrete bearing wall reinforcing structure, a hidden column is arranged in the slot, and a lintel is arranged at the top of a window hole of a curtain wall window (11); masonry bearing wall reinforced structure, fluting in its outer wall, the blind column is installed to the inslot, and the reinforcement groove has been seted up to the wall body of the window hole top position of side window (12), install the lintel in the reinforcement groove, the window hole of curtain window (11) vertically extends to the roof of decorating dustcoat (1), the floor level of newly-built (2) outwards extends to the outer wall position of decorating dustcoat (1), forms unsettled indoor corridor (3), indoor corridor (3) are the gathering corridor.

2. A new and old building nest composite structure which is old and stable in internal environment as claimed in claim 1, wherein: the novel building (2) comprises a plurality of lower functional areas (21), a hall (22) arranged between the lower functional areas (21) and curtain wall windows (11), a plurality of upper functional areas (23) arranged in the lower functional areas (21), a pavement (24) arranged between the lower functional areas (21) and the decorative outer cover (1), IT data machine rooms are arranged in the upper functional areas (23) and the lower functional areas (21), a fresh air machine room, a post-accident ventilation machine room, a distribution room and a smoke exhaust machine room (25) are partitioned by walls on one side of the IT data machine rooms, smoke exhaust pipes and smoke exhaust pipes extend outwards in the smoke exhaust machine room (25), the smoke exhaust pipes extend into any other machine room, the outlet of the smoke exhaust pipes are communicated with a shutter (122), and any independent room in the lower functional areas (21) and the upper functional areas (23) faces the side window (12).

3. A new and old building nest composite structure which is old and stable in internal environment as claimed in claim 2, wherein: the novel building (2) further comprises an area electric smoke blocking vertical wall (26) and a channel electric smoke blocking vertical wall (27), the area electric smoke blocking vertical wall (26) is arranged between adjacent support columns of the lower layer functional area (21) and a stair outlet of the upper layer functional area (23), and the channel electric smoke blocking vertical wall (27) is arranged between the novel building (2) and a pavement (24) of the decorative outer cover (1).

4. A new and old building nest composite structure which is old and stable in internal environment according to claim 3, wherein: the non-top layer of the new building (2) is a machine room for intensively installing cabinets of computers and/or data centers, an air inlet and an air outlet of a radiator of the cabinet are both louver windows (122) at the top of the side window (12), the side window (12) provided with the louver windows (122) is provided with glass windows at the bottom.

5. A new and old building nest composite structure which is old and stable in internal environment as claimed in claim 1, wherein: reinforced concrete ground beam has been buried underground to curtain window (11) bottom ground, and curtain window (11) top is provided with the roof beam with the position that the roof is adjacent, is provided with the inner column in the middle of curtain window (11), both ends respectively with roof beam and ground beam fixed connection about the inner column, glass edge in curtain window (11) is provided with soft mosaic bordure structure, soft mosaic bordure structure is used for guaranteeing that the glass of curtain window (11) does not take place to damage when taking place curtain expend with heat and contract with cold.

6. A new and old building nest composite structure which is old and stable in internal environment as claimed in claim 1, wherein: the keel grid of the curtain wall window (11) is provided with a door frame (112), and a glass door leaf is arranged in the door frame (112).

7. A new and old building nest composite structure which is old and stable in internal environment as claimed in claim 1, wherein: the flexible decorative board is arranged at the joint between the overhanging end of the overhanging corridor and the outer wall of the decorative outer cover (1), the flexible decorative board is fixedly connected with the overhanging end of the overhanging corridor, and the flexible decorative board is not connected with the inner side of the inner wall of the decorative outer cover (1).

8. A new and old building nest composite structure which is old and stable in internal environment as claimed in claim 1, wherein: the decoration outer cover (1) comprises walls which are vertically arranged around, a roof which is arranged at the top of the walls, and plane tripods which are arranged at the inner top of the roof, wherein the plane tripods are arranged into a plurality of planes along the length direction of the decoration outer cover (1) at intervals, the two ends of the length direction of the planes tripods are fixed at the top of the walls, a cavity is formed between the planes tripods and the ground of the decoration outer cover (1), and the elevation of the bottom surfaces of the planes tripods is higher than that of the newly-built building (2).

9. A new and old building nest composite structure which is old and stable in internal environment as claimed in claim 1, wherein: the window hole of the side window (12) is provided with a mounting hole with a smooth and flat hole wall, and the glass window sash of the side window (12) is propped against the hole wall of the mounting hole.

10. A new and old building nest composite structure which is old and stable in internal environment as claimed in claim 1, wherein: the outer wall of the decorative outer cover (1) is a clear water brick wall, and the decorative material on the outer wall of the decorative outer cover (1) is PK bricks.