JP4016759B2 - High-rise building - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a high-rise building, and is particularly effectively applied to an office building.
[0002]
[Prior art]
Japanese Patent Laid-Open No. 10-306603 discloses a high-rise apartment building, a core zone composed of a staircase, an elevator, a facility piping space, a structural wall with a vibration control device, a residential zone facing the outer periphery of the building, and a residential zone It is composed of equipment zones disposed between the core zone and the core zone. The structural wall with the vibration control device absorbs the seismic energy to reduce the number of column beams and secure sufficient space. Also, the residential zone and the core zone In other words, a technology has been disclosed in which an installation zone is provided between the two, and a free position can be set without fixing piping to a kitchen, bathroom, or toilet.
[0003]
In addition, the residential zone is configured so that no column beam is installed except for the outer periphery of the building, and the interior of the house is a columnless and beamless space, enabling free planning and layout, and increasing the actual effective volume. In addition, the equipment zone is equipped with equipment piping behind the ceiling and under the floor, and the other spaces are corridors and common spaces, allowing the free positioning of water areas such as kitchens, bathrooms, toilets, etc. It is easy to renovate and change to a multi-family house.
[0004]
[Problems to be solved by the invention]
However, in office buildings, the rentable ratio (effective area / floor area) is the most important. Conventionally, in high-rise buildings with a core wall inside the building and a column beam frame around the building, this rentable ratio has not been considered. It was.
[0005]
In an office building, it is necessary to provide an air conditioning equipment duct, and it is important to efficiently and compactly arrange the air conditioning equipment and the equipment duct.
[0006]
The present invention has been made to solve such problems, and its purpose is most important in offices by an efficient core plan that improves the degree of freedom in building and equipment planning in office buildings and the like. The rentable ratio can be improved, and by improving the degree of freedom of air conditioning equipment and equipment ducts, it is possible to improve air conditioning efficiency, reduce equipment costs, reduce equipment space, improve the rentable ratio, etc. The purpose is to provide a high-rise building with a core wall and a column beam structure on the outer periphery of the building.
[0007]
[Means for Solving the Problems]
Claim 1 of the present invention is a high-rise building comprising a core wall (center core or side core) inside the building and a column beam frame (eg, PCa column and steel beam) on the outer periphery of the building, and the core wall is a seismic wall (horizontal cross section). Is composed of distributed seismic walls combining multiple SRC structures (I-type, L-type, T-type, etc.), and steel haunch beams for floor assemblies (steel / concrete reverse waffle slabs, deck plates + cast-in-place concrete, etc.) haunch but the disposed between the core wall or beam-column Frame beams and building periphery to the core wall, the iron bone haunch beam, which projects below the small end and RyoNaru size rather sets of floor RyoNaru A high-rise building, wherein an equipment duct perpendicular to the steel haunch beam is arranged under the small end of the beam, and an equipment duct is arranged under the floor assembly. (See FIGS. 1 to 3).
[0008]
Claim 2 of the present invention is a high-rise building according to claim 1, wherein a facility space is arranged on the opposite side of the core portion of the core wall (outside of the core wall) ( (See FIGS. 1 and 2).
[0009]
In the first and second aspects, it is preferable that the distributed type earthquake-resistant wall has a thickness (700 mm or less) equivalent to the finished size of the S structure. Equipment spaces such as piping and air conditioners are provided outside the core wall. Place the steel haunch beam released from the seismic force at an appropriate position on the floor assembly, arrange the equipment duct under the beam other than the haunch part, or arrange the equipment duct through the haunch part, or The equipment duct is placed under the floor in parallel with the steel haunch beam.
[0010]
Claim 3 of the present invention is a high-rise building according to claim 1 or 2, wherein the earthquake-resistant walls are connected by a damper (passive damper such as a boundary beam damper). Yes (see FIGS. 4 and 5).
[0011]
In the present invention, provided the haunch portion to the central portion of the steel haunch beams preferably arranged each facility duct to a small end portions of RyoNaru Steel haunch beams (Claim 4). That is, as shown in FIG. 3, a haunch portion protruding below the large beam formation is formed at the center of the steel haunch beam, and a storage space for equipment ducts is formed below the beams at both ends of the small beam formation. To. Moreover, the through hole of an equipment duct is formed in a haunch part as needed. The air conditioner is installed in the equipment space outside the core wall. As shown in FIG. 8, for example, the equipment duct passes through the equipment duct for supply from the air conditioner under the beam at the end on the core wall side of the steel haunch beam. A facility duct for returning to the air conditioner is disposed through the beam at the end of the steel haunch beam on the outer periphery side of the building. In addition, equipment ducts for other parts for supply and return are arranged under the floor in parallel with the steel haunch beam. If necessary, an equipment duct is also provided in the through hole of the haunch part.
[0012]
In the configuration as described above, by combining a plurality of partial shear walls such as I-type, L-type, T-type, etc. into a distributed type earthquake-resistant wall, the degree of freedom of the core plan and architectural plan is increased. As shown in Fig. 6, the normal basic span of the outer periphery of a building can provide a rentable ratio (effective area / floor area) close to the ramen structure. As shown in Fig. 7, a large basic span such as a foreign-affiliated office Since core planning is possible regardless of the span, the core wall can be accommodated in a compact manner, and the rentable ratio is increased compared to a normal ramen structure.
[0013]
In addition, by using a steel haunch beam released from the seismic force in the floor assembly, for example, as shown in FIG. 8, equipment ducts can be arranged under the beams at both ends of the steel haunch beam, It can be placed under the floor in parallel with the steel haunch beam, and the equipment duct can also be placed in the through hole of the haunch part, improving the degree of freedom of air conditioning equipment and equipment duct, improving air conditioning efficiency, equipment Costs can be reduced, and flexibility for partitioning and changing applications can be improved. Furthermore, the reduction in air conditioners reduces equipment space and improves the rentable ratio.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described based on the illustrated embodiments. 1 to 4 show an example in which the present invention is applied to a center core type high-rise office building. FIG. 1 is a plan view, FIG. 2 is a partial detail view of a core wall, and FIG. Detailed view, FIG. 4 shows the entire high-rise office building.
[0015]
1-4, the high-rise office building 1 includes a core wall 2 disposed in the center of the building, a column beam frame 3 including a PCa column 3a and a steel beam 3b on the outer periphery of the building, and a floor on each floor. It consists of set 4.
[0016]
In such a high-rise office building 1, in the present invention, as shown in FIGS. 1 and 2, the core wall 2 is distributed by combining a plurality of I-type, L-type, and T-type partial earthquake resistant walls 10a to 10c. As shown in FIG. 1 and FIG. 3, a steel haunch beam 11 that is free from seismic force is used for the floor set 4.
[0017]
Partial earthquake-resistant walls 10a to 10c are RC or SRC structures, and by combining I type, L type, and T type as appropriate, the degree of freedom in building / equipment planning is improved, and an efficient core plan is made. Realize. The wall thickness of the earthquake resistant walls 10a to 10c is preferably 700 mm or less, which is equivalent to the finished size of the S structure.
[0018]
As shown in FIG. 1, a staircase 5, an elevator facility 6, an elevator hall 7, and the like are disposed inside such a distributed earthquake resistant wall 10, and facility spaces such as piping and air conditioners are disposed outside. 8 is provided.
[0019]
As shown in FIG. 3, the floor assembly 4 is a steel / concrete reverse waffle slab composed of an RC slab 12 and a steel beam or a steel-rebar lattice beam 13 thereon, and a free access floor 14 is provided on the upper surface. . A steel haunch beam 11 is disposed at an appropriate location of the floor assembly 4 (see FIG. 1). As shown in FIG. 2, a slab receiver 15 is disposed outside the distributed earthquake-resistant wall 10.
[0020]
As shown in FIG. 3, the steel haunch beam 11 is formed with a haunch portion 11a protruding below the large beam formation at the center, and is formed under the beam or the haunch portion 11a at both ends 11b of the normal beam formation. The equipment ducts 20a, 21a perpendicular to the beam 11 can be accommodated in the through-holes disposed therein or disposed therethrough, and between the RC slab 12 and the ceiling 16, the equipment ducts 20a, 21a perpendicular to the beam 11 and the beam are arranged. 11, equipment ducts 20b and 21b parallel to 11 can be accommodated, and the degree of freedom of equipment duct work is improved.
[0021]
As shown in FIG. 4, the upper floor of the high-rise office building 1 and the core wall 2 of the penthouse 30 are provided with passive dampers (boundary beam dampers) 31 that connect the partial earthquake resistant walls 10 a to 10 c to each other. Yes. Further, a structural pillar / structural steel frame 33 rising from the continuous wall pile 32 is used for the core wall 2 on the lower floor and the foundation of the high-rise office building 1.
[0022]
Next, FIG. 5 to FIG. 8 are examples when applied to a side-core type high-rise office building. As shown in FIGS. 5 (a) and 5 (b), the core wall 2 is composed of a distributed type earthquake-resistant wall 10 in which a plurality of I-type, L-type, and T-type partial earthquake-resistant walls 10a to 10c are combined. A large number of steel haunch beams 11 are arranged around the core wall 2.
[0023]
As shown in FIG. 5 (c), the floor assembly 4 is composed of a steel frame beam 11, a steel beam 13 orthogonal to the beam, a deck plate 17 and a cast-in-place concrete 18. Below the beams at both ends 11b of the steel haunch beam 11, a supply equipment duct 20a orthogonal to the beam 11, a return equipment duct 21a, a spare equipment duct 24, and the like are disposed. A through hole 11c formed in the haunch portion 11a is also used.
[0024]
As shown in Fig. 6, with the increase in the degree of freedom of the architectural plan, in the normal office span (6.4 m), the rentable ratio (effective area / floor) that is close to the ramen structure even though the wall is installed. Realized an architectural plan that can be obtained.
[0025]
Furthermore, in a foreign-affiliated office, the basic span often increases (7.2 m) due to the allocation of private rooms and parking spaces for large vehicles. In this case, the normal CFT ramen structure shown in Fig. 7 (a) is used. Unlike the core distributed system of the present invention, as shown in Fig. 7 (b), core planning is possible regardless of the outer span (7.2 m), so the core can be compactly accommodated and the rentable ratio (2% increase from 72.2% in (a) to 74.0% in (b)).
[0026]
Further, as shown in FIG. 8, by using the steel haunch beam 11, the supply equipment duct 20a and the return equipment duct 21a orthogonal to the beams can be arranged under the beams at both ends 11b. The supply equipment duct 20b parallel to the beam and the return equipment duct 21b can also be arranged parallel to the steel haunch beam 11, and the ductwork becomes free, thereby improving the efficiency of air conditioning by 1.5 to 2 times. It is possible to reduce the equipment cost and improve the flexibility for partitioning and changing applications. Furthermore, the reduction of the air conditioner 40 reduces the equipment space 8 and improves the rentable ratio.
[0027]
Specific examples of cost reduction related to the air conditioning equipment, reduction of equipment space, and improvement of the rentable ratio associated therewith are shown in FIGS. FIG. 9 shows an example of the duct arrangement of the under-beam duct method in the RC frame construction method of the present invention, and FIG. 10 shows an example of the duct arrangement of the beam penetration duct method in the conventional ramen construction method. FIG. 11 shows a comparison of the air-conditioning equipment-related equipment space between the under-beam duct system of the present invention and the conventional beam-through duct system.
[0028]
9 and FIG. 10, the equipment duct 20 for supply from the air conditioner 40 is shown by a solid line, and the equipment duct 21 for return is shown by a dotted line. In FIG. 9, reference numerals 25 and 26 denote an air supply pipe and an exhaust pipe of the air conditioner 40, respectively. A smoke exhaust shaft 41 and its smoke exhaust duct 22 are disposed on the right side of FIGS.
[0029]
In the case of the beam penetration duct method in the conventional ramen construction method of FIG. 10, since all the ducts 20, 21, and 22 are beam penetration methods and the depth of the office is deep, the beam penetration of the duct is restricted, and as a result, air conditioning The number of systems increases. On the other hand, in the case of the under-beam duct method in the RC frame construction method of the present invention shown in FIG. 9, since the duct space is secured under the beam, the number of air conditioning systems can be reduced by arranging the main duct under the beam. it can. In the case of the conventional beam penetration duct system of FIG. 10, since the number of beam penetrations is limited, the air supply pipe and the exhaust pipe of the air conditioner 40 cannot be installed for each floor as in the present invention of FIG. A shaft for supply and exhaust is required.
[0030]
As shown in FIG. 11, in the present invention, the number of installed air conditioners 40 can be reduced from the conventional 10 to 6, and the smoke exhaust shaft 41 can also be reduced from the conventional 6 to 3 places. . Also, the number of ducts can be reduced. Thereby, in this invention, the reduction | decrease of 1/3 of the installation expense regarding an air-conditioning installation and the reduction | decrease of 1/4 of installation space can be achieved, and a lable ratio can be increased 1.5% in connection with it.
[0031]
【The invention's effect】
(1) In high-rise office buildings, etc., the core wall can be divided into multiple types of partial earthquake-resistant walls such as I-type, L-type, T-type, etc. to form a distributed type earthquake-resistant wall, thereby increasing the degree of freedom in core planning and architectural plans. As a result, the most important rentable ratio (effective area / floor area) in an office building or the like can be improved.
[0032]
(2) By using steel haunch beams for the floor assembly, equipment ducts can be placed under the beams at both ends of the steel haunch beams, and parallel to the steel haunch beams under the floor. In addition, equipment ducts can be placed in the through-holes of the haunch, improving the flexibility of air conditioning equipment and equipment ducts, improving air conditioning efficiency, reducing equipment costs, and improving flexibility for partitioning and changing applications. Can be achieved. Furthermore, the reduction in air conditioners reduces equipment space and improves the rentable ratio.
[0033]
(3) By the above, the construction cost per effective area of office buildings, etc. can be reduced, the equipment cost can be reduced, and the cost can be reduced.
[Brief description of the drawings]
FIG. 1 is a plan view showing an embodiment in which the present invention is applied to a center core type high-rise office building.
2 is a partially enlarged plan view of a core wall portion of FIG. 1; FIG.
3 is a detail of the steel haunch beam of FIG. 1, in which (a) is a sectional view of the floor assembly and the steel haunch beam, and (b) is a side view of the steel haunch beam.
4 is a vertical sectional view showing the entire high-rise office building of FIG. 1. FIG.
FIGS. 5A and 5B show an embodiment when the present invention is applied to a side-core type high-rise office building, where FIG. 5A is a plan view, FIG. 5B is a partially enlarged plan view, and FIG. 5C is a side view of a steel haunch beam. FIG.
6 is a plan view showing a construction plan of a high-rise office building having a normal basic span shown in FIG. 5;
FIGS. 7A and 7B are plan views showing a comparison of a rentable ratio of a high-rise office building having a large basic span, where FIG. 7A shows a CFT frame structure and FIG. 7B shows a case of the present invention.
FIG. 8 is a plan view showing an example of a duct work of the present invention.
FIG. 9 is a plan view showing a duct arrangement example of a sub-beam duct system in the RC frame construction method of the present invention.
FIG. 10 is a plan view showing a duct arrangement example of a beam penetration duct method in a conventional ramen construction method.
FIG. 11 is a plan view comparing the facility space related to the air conditioning facility between the under-beam duct system of the present invention and the conventional beam-through duct system.
[Explanation of symbols]
1 …… High-rise office building 2 …… Core wall 3 …… Column beam 3a… PCa column 3b… Steel beam 4… Floor group 5… Stair room 6 …… Elevator equipment 7 …… Elevator hall 8 …… Equipment space DESCRIPTION OF SYMBOLS 10 ... Distributed type earthquake-resistant wall 10a ... I type earthquake-resistant wall 10b ... L-type earthquake-resistant wall 10c ... T-type earthquake-resistant wall 11 ... Steel-framed hunting beam 12 ... RC slab 13 ... Steel frame beam or steel-framed reinforced lattice beam 14 ... Free access floor 15 ... Slab receiver 16 ... Ceiling 17 ... Deck plate 18 ... Cast-in-place concrete 20 ... Supply equipment duct 20a ... Supply equipment duct 20b perpendicular to the beam ... Parallel to the beam Equipment duct 21 for return supply ... Equipment duct 21a for return ... Equipment duct 21b for return orthogonal to the beam ... Equipment duct 22 for return parallel to the beam ... Smoke duct 24 ... Spare installation Duct 25 ...... supply pipe 26 ...... exhaust pipe 30 ...... penthouse 31 ...... passive damper (Boundary Beams damper)
32 …… Continuous wall pile 33 …… Structure column and steel frame 40 …… Air conditioner 41 …… Smoke exhaust shaft

Claims (4)

A high-rise building consisting of Column Frames internal core walls and buildings periphery building, said core wall is composed of distributed shear walls that combine a plurality of shear walls, the floor assembly has steel haunch beam the core wall or is arranged between the beam-column Frame beams and building periphery to the core wall, the iron bone haunch beam is composed of a haunch portion protruding lower small end and RyoNaru size rather sets of floor RyoNaru The high-rise building is characterized in that an equipment duct orthogonal to the steel haunch beam is arranged under the small end of the beam, and an equipment duct is arranged under the floor assembly .   The high-rise building according to claim 1, wherein an equipment space is arranged outside the core portion of the core wall.   The high-rise building according to claim 1 or 2, wherein the earthquake-resistant walls are connected by a damper. In the high-rise building according to claim 1, claim 2 or claim 3, a haunch portion is provided at the center portion of the steel haunch beam, and equipment ducts are respectively provided at both ends of the steel haunch beam having a small beam. A high-rise building characterized by

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