JPH02275006A - Building for turbine - Google Patents

Abstract

PURPOSE:To obtain a reasonable turbine-building which is able to support the horizontal load caused by such as seismic force or earth pressure by a building structure entirety, by connecting building structural columns close to a supporting frame to each ether by means of transmitting/supporting the horizontal load with spaced in a side-edge direction of the supporting frame. CONSTITUTION:A turbine-building 1 has in its center a supporting frame 2 for a turbine or a generator installed on the same foundation slab with a gap 4 secured between the building structure body and the supporting frame 2. In the center of the building 1, an opening is formed on respective floor slabs 5 of the building. Respective building columns 6a, 6b which are adjacently disposed to the supporting frame 2 in the direction perpendicular to the longitudinal edge direction of the supporting frame 2 are connected to each other with a bearing wall 8 such as reinforced concrete construction through the range from the foundation slab to the under part of the deck of the supporting frame 2. Thus the horizontal load produced in the above mentioned orthogonal direction is transmitted to the building structural body through the bearing wall 8, whereby the horizontal forces produced on respective structural bodies of the turbine-building 1 are uniformly distributed.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a turbine building, and more particularly to a turbine building that is separated and independent from a pedestal supporting a turbine/generator, except for a base portion.

[Conventional technology]

Regarding the structure of the turbine building, Japanese Patent Application Laid-Open No. 1986-75
There is one described in Publication No. 595.

According to this example, the seismic design standards applied to the turbine building itself are relaxed, simplifying the structure of the turbine building, reducing seismic design man-hours, materials used, and construction costs, and shortening the construction period for the building. In order to do this, the storage room for the turbine, generator, piping, etc. is to be supported from above the building foundation using a support pedestal in the turbine building.

[Problem to be solved by the invention]

However, in the above conventional technology, as a building structure,
By equipment such as turbines and generators.

In addition to requiring a large space in the center of the building, passing the support frame through the floor slab in the center of the building also increases the number of openings in the floor slab, making it difficult for the building to be used during earthquakes, etc. However, there is a problem in that a very large horizontal load is generated locally in the turbine building, and a rational structural plan that supports the horizontal load generated in the turbine building by the entire building structure cannot be realized.The purpose of the present invention is to: We provide a rational turbine building that smoothly transmits the load due to the horizontal external force applied to the building perpendicular to the direction of gravity of the turbine and generator to the entire building, thereby supporting this horizontal load with the entire building structure. [Means for Solving the Problems] In order to achieve the above object, the present invention provides a structure in which a support frame for supporting equipment such as a turbine and a generator is fixed on the base of a building structure. , and in a turbine building that is separate and independent from other structures in the building, the structural columns adjacent to the support pedestal are spaced apart in the long side direction or the short side direction of the support pedestal. It is characterized by being open and connected by means for transmitting horizontal force and/or means for bearing horizontal force against seismic forces, etc., and as said means, reinforced concrete construction, steel frame structure, steel plate concrete construction, etc. can be used. [Function] According to the above configuration, when a horizontal load such as an earthquake force or a tonosho occurs in a direction perpendicular to the turbine/generator axis, it is smoothly transmitted to the building structural members facing each other across the support frame. Because you can.

This horizontal load can be supported by the entire turbine building structure, which makes it possible to provide a rational building structure plan.

In addition, even if the building structural members are not connected to each other, horizontal loads can be prevented by providing independent walls with high rigidity.

〔Example〕

A first embodiment of the present invention will be described below with reference to FIGS. 1 and 2.

In [turbine building], turbine/generator support frame 2
The turbine building J is located almost in the center of turbine building 1.
It is installed on the same foundation plate 3 with a gap 4 secured between it and the building structure. As a result, for the turbine building 1, an opening is created in each floor slab 5 of the building in the central part. Here, the building columns 6a and 6b adjacent to the turbine/generator support pedestal 2 are connected to the turbine/generator support pedestal 2 from above the base plate 3 in a direction perpendicular to the long side direction of the turbine/generator support pedestal 2. A load-bearing wall 8 made of reinforced concrete is connected to the lower part of the deck part 7 of the generator support frame. Note that the load-bearing wall 8 is not limited to reinforced concrete construction.

According to this embodiment, horizontal loads such as seismic force and earth pressure generated in a direction perpendicular to the long side direction of the turbine/generator support frame 2 can be applied to the turbine/generator support frame 2 facing the long side direction. Since it can be rationally transmitted to the building structure being constructed through the load-bearing wall 8, it becomes possible to uniformly distribute the horizontal force generated in each structure of the turbine building.
A rational building structure plan can be realized.

The method of transmitting the horizontal load due to an earthquake or the like occurring in a direction perpendicular to the long side direction of the turbine/generator support pedestal in this embodiment will be explained below.

Since earthquakes have directionality, the explanation will be based on the horizontal load during an earthquake occurring in direction A in FIG.

In FIG. 11, the horizontal load in the direction A caused by the earthquake is transmitted to the walls, beams, and floor slabs installed in the area of the floor slab 5, and is transmitted through the building pillars 6al and load-bearing walls 8 to the building pillars 6b. Roughly spread to the floor slab 9 area walls and
The load is transferred smoothly to the beams and floor slabs according to its direction.

In this way, the horizontal load caused by the earthquake that occurred in direction A is supported by the structural members of the entire building, even though the turbine/generator support frame is installed in the center of the building, creating a large opening for the building. Therefore, it is possible to design a building that efficiently maintains its strength against horizontal loads such as earthquakes.In addition, in Fig. 15, for horizontal loads from direction B, it is possible to design buildings that efficiently maintain strength against horizontal loads such as earthquakes. The load is transmitted and the same effect is achieved.

According to this embodiment, in the turbine building, the turbine
Despite the large opening in the center of the building, the turbine/generator support mount can absorb the horizontal force generated in the direction perpendicular to the long side direction during an earthquake, over the entire 1f15 turbine building structure. It is possible to implement a turbine building structural plan that enables smooth transmission of horizontal loads. It can be clearly shown by calculating the bending moment and shear force that occur in the design (structural part).

By applying this example and utilizing a building model, in one analysis example of dynamic analysis during a building earthquake, we were able to obtain the following analysis results compared to a turbine building with a conventional structure.

1.) It has been found that the maximum response moment I/load of the turbine building ceiling crane room area, which governs the building frame design, can be reduced by approximately 8%.

2) It was found that the maximum response shear force, which governs the design of the above-mentioned reinforced concrete structure in the lower part of the overhead crane room of the turbine building, can be reduced by a maximum of about 40% in the members next to the atrium.

These results are applied to each structure (structural part) of the turbine construction.
When reflected in the design, the following effects can be achieved.

■It is possible to rationalize the design by reducing the dimensions of the 5 necessary components of the building wall frame (mainly steel structure) in a 1-noon room with a turbine building ceiling.

■It is possible to rationalize the design by reducing the dimensions of the required components of the reinforced concrete structure (columns, beams, walls, floor slabs, etc.) in the lower part of the turbine building overhead crane room, or by reducing the amount of reinforcing bars.

■In the lower area of the first main room of the turbine building ceiling,
As the response acceleration is reduced, it is expected that the seismic design of equipment and piping systems will be rationalized.

■By means of ■ and ■ above, it is possible to reduce the amount of reinforcing bars, steel frames, and concrete, which are the main components of building construction costs, and the building construction cost can be reduced.

■By reducing the amount of building materials that govern the building construction process, it is possible to contribute to shortening the construction period.

Further, in this embodiment, the load-bearing wall 8 is a building pillar 6a.

6b, but it may be discontinuous, for example, by providing a slit in the vertical direction in the center of this load-bearing wall. In this case, the divided load-bearing walls cannot mutually transmit horizontal force to the building columns 6a and 6b, but can each bear the horizontal force as a wing wall that structurally reinforces the building columns 6a or 6b. , a structurally strong turbine building.

Next, the second embodiment of the present invention will be explained with reference to FIGS. 3 and 4. The fourth embodiment has a steel frame structure, whereas the first embodiment has a reinforced concrete structure.
This is one of the modified examples of the first embodiment.

In FIG. 3T, building columns 6a and 6b adjacent to the support frame 5 in a direction perpendicular to the long side direction of the turbine/generator support frame are connected by a support frame 11.

[support frame], 1 is a building column 6a by a frame joint 12,
6b and the basic plate 3. As shown in FIG. 4, the frame joint 12 embeds foundation bolts 15 up to the inside of the reinforcing bars 4 to securely connect them to the foundation slab 3 and building columns 6a and 6b.

As a result, the support frame], ] is supported by this building column a or 6.
It is possible to reinforce the horizontal force bearing force of the building beam 13 and the building columns 6a and 6b that are connected to b.

Next, a third embodiment will be described with reference to FIGS. 5 to 7. In this embodiment, building columns 6a and 6b are joined by a load-bearing wall 1G made of steel plate concrete 1.

As shown in FIG. 5, the building columns 6a and 6h are connected by a load-bearing wall 1G made of steel plate Funkley-1, and the steel plate concrete load-bearing wall J6 is also connected to the base plate 3.

An example of how to connect the building pillar 6a and the foundation plate 3 is shown in Figure 6 (
This will be explained with reference to FIG. 5 (g] cross-sectional view) and FIG. On the building pillar 6a and the foundation plate 3,
The support plate member J7 is embedded, and the flange portion 17a of the support plate member J7 is embedded to the inside of the reinforcing steel 4. Therefore, the load (force) from the steel plate [8] and the concrete 19 that is transmitted to the support plate member [67] is reliably transmitted to the building columns 6a and the foundation slab 3.

Thereby, the same effect as the first embodiment can be obtained.

〔Effect of the invention〕

As described above, according to the present invention, by providing a load-bearing wall such as a horizontal force transmitting means in the space inside the building created by the 5 support frames, the horizontal load due to earthquake force, tosho, etc. can be supported by the entire building structure. A reasonable turbine building can be obtained.

[Brief explanation of drawings]

FIG. 1 is a plan view showing the mutual relationship between the turbine building and the turbine/generator support frame of the first embodiment of the present invention, FIG. 2 is a sectional view taken along the line i-X of FIG. FIG. 4 is a detailed view of section C in FIG. 3; FIG. 5 is an elevational view showing the third embodiment of the invention; FIGS. 6 and 7
The figures are a cross-sectional view taken along the line ■-■ and a cross-sectional view taken along the line ■-■ of FIG. 5, respectively. 1...Turbine building, 2...Turbine/generator support frame, 3...Fundamental version. 4... Vacancy, 5... Floor slab, 6.6a, 6b... Building pillar, 7... Turbine/generator support deck part. 8... Load-bearing wall, 9... Floor slab, 11... Support frame; 16... Steel plate concrete load-bearing wall.

Claims (1)

[Scope of Claims] 1. In a turbine building in which a support frame for supporting equipment such as a turbine and a generator is fixed on the base of the building structure and is separate and independent from other structures in the building. , Connecting building structural columns that are close to the support frame with a gap in the long side direction or the short side direction of the support frame by horizontal force transmission means and/or horizontal force bearing means for earthquake force, etc. The turbine building is characterized by: 2. The turbine building according to claim 1, wherein the horizontal force transmitting means and/or the horizontal force bearing means are constructed of reinforced concrete. 3. The turbine building according to claim 1, wherein the horizontal force transmitting means and/or the horizontal force bearing means is a steel frame structure. 4. The turbine building according to claim 1, wherein the horizontal force transmitting means and/or the horizontal force bearing means are constructed of steel plate concrete.