JP6937457B2 - A connecting body in which wooden cross-shaped composite columns are tightly crimped with flat PC beams. - Google Patents

Description

In order to adapt to the large-scale and high-rise wooden buildings that utilize laminated wood and the violence and variety of natural disasters, it is desirable to fundamentally innovate the conventional joining method, which has a large difference in material characteristics when joining large members. Is done. In particular, it is a field that requires complex technology that goes beyond joining technology in order to bring out long-term durability and durability.

Wood is a recyclable material that is superior to stone, iron, and brick, but due to its inhomogeneous characteristics, ingenuity to utilize the directional force of fibers, and the deviation of the wood industry, the development of basic technology has been delayed. There is. On the other hand, the wide social position of utilizing wood in people's adaptation space for natural disasters and social changes is also low.

There is a demand for integrated technology that conveys to the ground with the dynamics that reliably control the stress balance that increases with increasing size and height, and creates the sensibilities and functions of human beings.

In order to utilize the reinforced concrete rebar that doubles as a compression material and a tension material for tensile joints, it is effective to develop a construction method that combines PC members with beam members for each layer and separates fiber axial force members and fiber right angle members. it is conceivable that. In addition, a comprehensive solution can be seen beyond the construction technology and dynamic mechanics that make the flame, vibration, and sound insulation functions useful for the structure, the sharing of members, and the simplification of construction. We can see the problem of utilizing diversity with geometric similarity that is effective in the fields of simplification, commonality, and sharing.

By increasing the volume of supporting members for column loads and utilizing the compressive force in the fiber direction, assuming a rigid frame structure with a composite structure of PC steel bars and PC construction for the tensile bonding force in the fiber direction, a member structure with bearing walls and vibration control functions Make up for weaknesses by adding. By utilizing the effective composite structure of wood and PC structure as a connecting beam orthogonal to the outer structure line to form a two-way rigidity with the composite column, the problem of the means of joining the tensile force of wood is solved. Compression cushioning is essential for the joint surfaces between different materials.

In addition, the solution is a two-way rigid frame structure with a detachable Lego (registered trademark) structure by separating the skeleton and infill, which makes the most of the convenient and comfortable space and design for architectural applications with various structural forms.

And attaching and detaching the pillars and beams of the main structure separately, at a variable structure to the changing times, in wooden technology to take advantage of the long-term durability of architectural value and charm, Lego facing the IOT of production and conservation (registered trademark) structure Realize.

We aim to create a building with a large space by connecting the main structures of the outer structure of the building, which is made up of common members for columns and beams. A single composite that is orthogonal to the short side faces of two flat general-purpose members is composited so as to form a cross shape, and the side surface of the central pillar is sandwiched between openwork beams and the direction orthogonal to the long side direction of the cross-shaped pillar. Create a connection of the outer structure with the beams and the cross-shaped composite columns.

In addition to the configuration in which the central axis of the flat PC structure is aligned on the surface where the top surfaces of the column head and the orthogonal mating beam are aligned, and the PC beam and the hardness buffers of both members are placed on the composite column and the combined beam, the flatness is added. A joint type in which a beam equipped with a PC steel bar joint in advance is attached to a type PC beam, and a flat PC beam on the column head and the lower floor column head is crimped with a PC steel bar via the PC steel bar joint. The structure is as follows, and a mechanism is used in which the wooden columns and PC beams are separated and crimped with tensile joint parts.

A cross-shaped composite column is formed by sandwiching the central column in an arrangement orthogonal to each other on the short side surfaces of the two flat cross-section laminated wood columns. At the center of the beam length that matches the width of the flat PC beam to the long side of the central column of the composite column or widens it to sufficiently transmit the cross section of the composite column, the composite column and the flat PC beam are T. Build a mold connection.

In addition, a building outer structure is also formed in which PC flat beams are bridged in a gate shape between the stigmas between the center of the pillars, in which the central axis of the long side of the cross-shaped composite pillar is set at equal intervals of 4 to 6 m along the outer line of the building. can.

PCs are placed between the central axis of the cross-shaped composite column and the flat PC beam, which is the same as the stigma, on the column base of the composite column via a joint with a PC steel bar joint mounted in advance on the central axis of the flat PC beam. The three columns are tightly crimped with steel bars, and the three columns are integrated by penetrating PC steel bars or the like between the stigma column bases of the three cross-shaped composite central axes and at positions close to both ends. The ends of the combined beams are crimped with fixing hardware, and a composite body of each member is realized with a configuration that compensates for the defects of wood.

A stress control mechanism that repeats the lever function of the stigma / column base and beam members is created by strengthening the composite strength via a PC steel bar / shear plate that combines three columns on the central axis in the long side direction of the composite column.
In addition, the material of the shear plate can be added with a vibration damping function by the restoring force of elastic rubber or the like.

Align both sides of the long side of the rectangular column arranged so as to be orthogonal to the central axis of the PC beam so as to match the center axis of the frame in the long side direction of the cross-shaped composite column.

The central axis of the PC beam is arranged along the central axis of the two cross-shaped columns, and the width exceeds the length of the long side of the column that is orthogonal to each other. Build the body structure.

For the PC beam, the beam central axis of the long side of the cross-shaped column is between the joints with the PC steel bar joints attached in advance to the outer line of the column head column base with a gap close to the short side surface of the composite column cross section. With PC steel bars for crimping the cross-shaped columns, the cross-shaped columns are located close to each other from both short side surfaces of the cross-column cross section at the center in the beam-beam axial direction so as to secure the tension bolt work clearance of the PC bars. A composite frame is formed by crimping and joining the flat PC beams of the column head and column base.

The openwork beam orthogonal to the outer line of the building is orthogonal to the cross-shaped composite column installed on the outer line of the building, and the space and structure of the floor structure are formed through the beam connecting the ends of the combined beam. Make it a frame.

The PC steel bar is fixed in the center of the gap of the openwork beam with a fixture, and the fixing parts of the PC steel bar end are provided on both sides of the side surface that penetrates the openwork beam end edge and the middle column of the cross-shaped column to provide rigidity in two directions. I'm creating it.

At least one surface of the outer shell having a square or rectangular plan shape is connected to a T-shaped or gate-shaped connecting body, and the tensile joint is formed while utilizing the compressive axial force of wood in the cross-sectional area. We are constructing a structure that effectively utilizes the connection of various stresses without having it.

The technology of PC steel bars that bear the tensile force adopts the conventional technology that has been proven in large buildings and bridges, and the material of wooden cross-shaped composite columns and openwork beams, and the joining method, joining position, and members of the member shape characteristics. While creating a multi-dimensional complex such as crack prevention, the space unit of a square / rectangular building is repeated, the building becomes a building with equal load and stress, ensuring safety utilizing the essence of wooden construction, and the yield and distribution of wood. -It will be a well-balanced wooden structure for processing, reuse of parts, partial replacement of parts, etc.

You can see a building with a side of a square of 10m square, a floor height of 3 to 6m, and 10 floors.

By making the beams for each layer corresponding to shearing force, prevention of merging, bearing capacity, and buckling into PC construction, and minimizing the joints of the tensile force of wooden construction, it will be easier to proceed with the development of wooden fireproof member processing.

It also contributes to raising forest growth costs by adding value to wooden structures by improving the workability of wood processing and worksites, installing structural monitoring sensors, and equipping wooden structures with different-dimensional functions.

The standardization of members will increase the productivity of joining and composite members, and will enable the separation of functions such as heat insulation and anti-termite, which cause corrosion of structural members, with the aim of drawing out new technologies.

The load of the girders on the floor is directly adjusted to the column position, and the supporting stress of the column members and the horizontal seismic stress are dispersed to ensure long-term sustainable durability quality for each member.

We have pioneered a Lego (registered trademark) structural form that effectively reflects the material and joint surface strength in the mechanical structure by using the joint form that properly uses the mechanical properties of wood and concrete members and the weaknesses and advantages of the material properties, and the structural quality is uneven. Reduction, speeding up the realization of construction machinery, simple robotization, and structural monitoring.

With a rigid frame structure skeleton that is consistent with the individual requirements of residential building spaces, which multidimensionally links resource efficiency, processing control and commonality, simple construction, diverse usage, convenience, comfort, and sustainable variability. , Infill Suppresses simultaneous damage due to external force of building materials and technology, and builds long-term durability.

By showing a format that distinguishes the structural concept of a large wooden building from the structural concept that has become a building structure in which a large stress acts, while achieving both common structural local strength and member size and safety, it is possible to create an environment for developing new wooden technology. Give an impact.

Recycle the strength to ensure the safety of people's continuous living. Make the space beautiful with resources. Anyone can process and assemble it anywhere. The creation of a living environment in Japan will be promoted with low-carbon technology, which will help promote the cyclical nature of forest conservation and development.

The vertical axial force of wood is reflected in the structural design, and the sense of stability spreads to the design of windows, ceilings, furniture, etc. Through the creation of design value, it will be useful for popularizing wooden buildings and strengthening awareness of forest conservation.

In addition, as a lean social asset, the knowledge will work toward the society and the times when the need for urban building technology to make land use denser will be noticed, and the knowledge to review the building structure that is flexible and strong against earthquakes will work. , The property of wooden buildings will be improved as long-lasting durable buildings.

(B) Frame isometric diagram: A connecting body in which the center of the length of a flat beam made of PC is bridged in a T shape in the direction of the long side of the column head of the cross-shaped composite column, and a connecting body in which the beam is bridged in a gate shape between the composite columns. (B) Frame plan view: A plan view in which a flat PC beam is hung in a gate shape between two cross-shaped columns. (Including a part of the beam adjacent to both ends of the beam) (c) Frame side view: A flat PC beam is hung between the centers of the stigmas between the cross-shaped composite columns, and a PC steel bar is placed between the flat PC beams between the stigma and the column base. The ramen figure that was tension-bonded with. (2) Cross-sectional view of the crossing of the frame: A PC flat beam is used flat between the composite cross-shaped stigma and pedestal, and a cushioning material for the difference in member hardness is provided between the stigma / stigma and the member of the flat PC beam. (E) Frame crossing plan view: Composite cross-shaped column / openwork beam PC flat beam on half and one of the combined beams are fixed at the fixed end of the PC steel bar. (B) A plan view of the outer frame of a rectangular building that surrounds the four outer lines of the building. (B) Elevation view of the outer frame

Effectively composite general-purpose assembled members with flat cross-sections to create general-purpose column members with composite large cross-sections that are suitable for larger and higher layers, and effectively apply axial force in the fiber direction to PC beams on the stigma, column base, and fore edge. Lego (registered trademark) structure, which is constructed by relating the tension force of PC steel bars to be crimp-bonded, dynamically improving the wood utilization rate in an elastic structural form, and making the members detachable for long-term durability of large wooden buildings. As a structure that can freely combine various architectural shapes and designs, the social changes after completion and the living environment and technology will be made into a variable social architecture with the skeleton as the core. Useful.

The specific shape of the structure is to match the central axis of the member in the long side direction of the cross-shaped composite column, align the plane of the flat PC beam up and down, and align the central axis with the column member, and adjust the fiber direction force of the column material. Utilizing the joining characteristics that do not cause merging in PC members, using the tensile force and resilience of PC steel bars along the cross-shaped composite column, the fiber direction force on the column head surface and the repulsive force on the lower surface of the flat PC beam can be used as a lever function. It is a heterogeneous composite type that demonstrates the elastic dynamics characteristics that make the most of it.

A structure is created in which the middle pillar of a cross-shaped composite pillar is sandwiched by a laminated beam orthogonal to the building outer structure line that gives the column head joint a bidirectional force of bearing capacity and floor rigidity to respond to the increase in the size of a large wooden structure.

The flat PC beam member transmits the vertical axial force by measuring the joint area of the cross-shaped surface of the stigma and the combined beam, thereby realizing effective transmission of the load of a large high-rise building over a large cross section. There is.

The combined beam is orthogonal to the column member on the building outer structure line of the cross-shaped composite column, has side rigidity, and at the same time strengthens the rigidity on the outer structure line of the building by integrating the floor beam configuration.

The plan view of FIG. 2 (a), in which four safe and secure connecting bodies are connected to the four sides of a rectangular or square building outer shell, is a basic structure in which laminated beams of the same type are arranged between the laminated beams of the opposing connecting bodies. ..
A structure that does not require or has few columns inside the building can be effectively constructed. Further, in the (b) elevation view, it is possible to plan a structure for forming a vertically long opening in which the beams for each layer are flattened to utilize the internal space.

By increasing the weight of the floor beam structure shown in Fig. 1 (2) Floor structure cross-sectional view, the plan is shown by combining a PC steel bar structure that makes the floor beam smaller than the structure that suppresses vibration noise on the upper floor. , The exterior is utilized in the design that shows a light feeling of liberation in the image of wooden architecture.

The cross-shaped composite column can stand on its own during construction, and the center of the small and lightweight flat PC structure is temporarily fixed. Promote on-site mechanization.

The member structure for each layer that disassembles the crimp joint between the composite column of the connecting body and the flat PC beam makes it easy to replace and reduce the members, which is useful for the building structure with long-lasting function and long-term durability.
In this embodiment, the composite column member, the flat type PC beam, and the laminated beam are composed of one type, and the crimped PC steel bar in the fiber direction of the wood member and the metal joint between the beams are also composed of one type.

LEGO (registered trademark) that enhances overall productivity by constructing composite columns with one general-purpose size of laminated lumber, sharing the same components for floor beams, transporting, distributing, and sharing factory equipment and processing equipment. ) Structure.

Eliminating beams perpendicular to the fiber axis direction of wooden structures, the strength of wood characteristics is directly reflected in the strength, the beams are also connected by dry joints of PC beams with a Lego structure, and the floor beams are Lego (registered trademark) type crosses. It will be reinforced with PC steel bars by integrating and simplifying with the type composite beam, and the joining type will also be common.

Utilize the safety of joining functions, simplification and quality of joining hardware, and on-site workability and mechanization.

Taking advantage of the fact that the outer structure of the building is a continuous structure of common connections, the foundation beams, foundations, and piles also utilize the common type, and everything from production to construction and maintenance is LEGO (registered trademark) , geometry, and In particular, materials, processing, construction, safety, economy, conservation, etc. have industrial applicability that is related to mathematics, dynamics, and digital.

Claims (3)

A bidirectionally rigid connection made of cross-shaped composite columns, openwork beams, flat PC beams and PC steel bars.
The cross-shaped composite column
Two flat cross-section laminated lumber columns arranged with their short sides facing each other,
One flat cross section arranged between the short side surfaces of the two flat cross-section laminated wood columns so that the long side direction and the long side direction of the two flat cross section laminated wood columns are orthogonal to each other. It consists of laminated wood pillars,
The openwork beam
At the location where a part of the stigma edge of the two flat cross-section laminated lumber columns of the cross-shaped composite column is cut off.
It is arranged so as to sandwich both long side surfaces of the flat cross-section laminated lumber column at the center of the cross-shaped composite column.
The openwork beam and the upper surface of the cross-shaped composite column are aligned.
The flat PC beam is arranged on the cross-shaped composite column and the openwork beam for each layer.
At a position close to both outer short sides of the two flat cross-section columns of the cross-shaped composite column.
The joint parts for attaching and detaching the PC steel bars are attached to the flat PC beam in advance via the joints.
A connecting body in which the cross-shaped composite column and the openwork beam are detachably fastened and crimped to the flat PC beam and the PC steel bar. The concatenation according to claim 1.
A connecting body provided with a binding tool in which a stigma column base of three flat cross-section laminated wood columns of the cross-shaped composite column, a PC steel bar horizontally penetrated in the middle, and a shear plate are integrated. The concatenation according to claim 1 or 2.
At the center of the height of the openwork beam, the openwork beam and the PC steel bar penetrating the flat cross-section laminated wood column at the center of the cross-shaped composite column are provided.
A connecting body provided with a fixing portion of the PC steel bar end on the column side surface of the cross-shaped composite column.

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