JP2013189840A - Rahmen structure which combines wooden rigid frame with seismic control function - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a Rahmen structure which reduces lumber processing, reduces cross sectional defects, and simultaneously reduces processing processes and assembly man-hours, thereby dramatically improving long-term durability and earthquake resistance.SOLUTION: A column, for which the long side of rectangular cross section of lumber is disposed in frame axial direction, is sandwiched by two composite beams, so that the cross friction surface is widened and a plurality of them are bolt fastened.

Description

It is a multi-function type ramen structure that combines a vibration control function with a wooden pure rigid frame.

The conventional frame structure was removed and repositioned to change the space after the building was completed, and there were many damages after that. There is also a contradiction with sex. In addition, there is a large economic burden due to the complexity of conventional foundation and shaft structure repairability due to ground liquefaction.

In addition, it is indispensable to reduce the life cycle cost by the variability toward the extension of building life and property by creating the attractiveness of the building space that will not be defeated by a new era.

However, most of the conventional wooden frame construction methods have been searching for rigid frames by combining steel plates and bolts into a large cross-section with a method of creating rigid surfaces by bracing and bracing and structural plywood. This is a construction field where systems other than structure, materials and processing are mixed and overlapped, and a system that exceeds the safety of the structure and opens the whole solution is necessary.

It is desirable to have a partial replacement function for building materials to prepare for floor plans and usage changes through the creation of new simple and robust structural forms that can be adapted to these. In addition, the attractiveness of new wooden building spaces, the enlargement of buildings due to technological advances, mechanization and reduction measures for wooden engineers, the simplification and commonization of structures, and the combined structure with steel materials are indispensable, and repeated aftershocks In order to standardize the seismic control function provided, a system-like technology that responds to cost reduction and long-life construction is desired.

Demonstrate a matrix relationship between the core elements and technical fields of comprehensive problem solving such as building value and attractiveness that create comprehensive rationality such as safety, changeability, long-term sustainability, and productivity of living environment It is to elucidate the consistency between basic structural technology elements and peripheral functions.

First, we will create a new structural structure that can control the processing of wood and extract the characteristics of wood.
Second, create a clear and simple structure that can be adapted to any country or region.
Third, create attractiveness through a common core structure and diversity / variability / long-term sustainability.

In order to suppress the processing of wood, the joint metal is reduced and bolts are tightened to reduce cross-sectional defects. The machining process and assembly man-hours are reduced at the same time. The main structural stress utilizes the joint frictional force of the structural material to bring out seismic control to respond to repeated aftershocks. Increase the frictional force by expanding the joint area according to the stress level. Bolt tightening, gibber between members, and vibration control function are incorporated to create a wide column-free space.

It also increases the attractiveness of architecture by separating the diversity of structural frames and wall / floor structures.

Bolt holes are mostly used in the processing of pillars and beam members, and composites and enlargement of pillars and beams, simplification of joint hardware, response to stress and cost, mechanization of construction, and longer life of structures are progressing.

In addition, the versatility and versatility of the wall panels that make up the building space and the application to multi-use buildings that widen the opening surface will spread. In addition, these can build a comprehensive rationality of safety, productivity, technician measures, quality, and total cost. In addition, the opportunity for cost control and profit structure creation that adapts to the diversity and grade of the building increases from diversity.

As a collective of diverse, variable, long-term sustainability, economic efficiency, and attractive space, it is possible to demonstrate the foundation of creating a new wooden building that can be expected to contribute to the accumulation of cultural properties in the cityscape.

(1) shows the structure of the column (rectangular) and beam (composite beam), and the plan view of the connection between the column and beam (2) shows the cross-sectional view and figure of the connection between the column and beam (upper and lower chords and elbows of the composite beam) connection of) (1) Triangular vibration control device (with triangle base at column and apex at beam connecting part) (2) between rotating friction joint surfaces of column and beam (steel plate / high damping rubber / SAS) Figure between (1) is a composite column base (isometric view) with a rectangular column and a tube column in a cross shape (2) is a plan view

Assuming a rigid frame structure made of wooden columns and beams based on a structure that can be used for core wood such as 120 and 150 squares, it is intended to utilize resources that can be adaptively selected for forest growth and industrial management conditions, It is a wooden structure that can be assembled large cross-section material.

In order to secure the rigidity of the friction bonding between the columns and the beams, the columns are arranged in the frame axis direction by bolting about 3 square bars.

Assuming a structural scale and form that limit the distance between the columns by constructing the beams through elbows at the joints with the columns using square bars as upper and lower chords, if the beam is about 70 centimeters, the friction surface is 0.25 m 2 Is obtained.

The upper and lower chords and elbows are bolted to reduce the material volume and secure a cross section for stress.

Aiming for a pure ramen structure, the column is sandwiched between two composite beams to ensure twice the friction surface.

The small beam penetrates the hollow part of the beam to stabilize the takeout beam and promote the attractiveness of the building space.

A frame that uses frictional synthesis to spread the frictional surfaces of columns and beams with rectangular columns and composite beams, and uses simple technology to simply use the characteristics of wood by simple bolting to demonstrate rigidity.

Combines a Giber and T-shaped cross plate that further increases frictional rigidity.

It is also necessary to add a vibration control function, and the frictional surface is made of a high-damping rubber / stainless steel composite that makes use of the wood characteristics to help maintain and improve the function of the joint surface.

Creates a cross-shaped column cross-section by combining support tube columns that stabilize beams subjected to large stresses.

The column base fits the center of the cross-shaped composite column to the cross-shaped slit.

As shown in the figure, a rectangular column is a rigid structure that secures the beam side surface including the elbow part of the composite beam made of upper and lower chords and uses friction welding.

The column and beam also make use of the cutting force of multiple bolts.

Adds steel plate sandwiching, gibber function, and damping function to enhance frictional force.

Construct stress in the large pillars and build a mechanism to transmit the stress reliably to the foundation with a small number of pillars in a 60m2 2-story (120m2) scale space.

The floors and walls of the building that use a completely pure ramen structure expand the creativity of the section and design.

The structure that can guarantee the longevity of a building that can be used forever is the variability of the space of the building, and a framework that can simultaneously achieve diversity and commonality during construction is required.

Architectural value is a mature society in the future, and it is necessary to have a function that links real orientation and the townscape.

Emphasis will be placed on structural functions that can economically recover from earthquakes.

Contributes to resolving conflicts between consumers and suppliers, such as safety, productivity, sustainability, and economic efficiency.

Function without load bearing walls that enables the replacement of applications to suit different purposes.

Easy to assemble and process, make up for the shortage of professionals, use new resources and create industrial jobs.

It is a structure that can disassemble wood fastening bolts, and can be relocated and reused.
This will reduce shaking during the earthquake and the economic burden of restoration.
Utilization of domestic forest resources and total policy alignment of industrial, economic and employment can be achieved.

Claims (9)

A pillar that arranges the long side of a rectangular section of wood (about 2 to 3 to 1) in the direction of the frame axis is composed of two composite beams (same section width as upper and lower chords, 1.5 to 2 times the width of the beam) A unidirectional pure rigid frame that is sandwiched by elbow (web) and spreads the cross friction surface and tightens multiple bolts. A timber frame unidirectional wooden frame that creates an increase in frictional force by sandwiching a T-shaped or cross-shaped joint steel plate between the columns and beams of the frame and bolting together. 3. A wooden frame unidirectional wooden frame in which a T-shaped or cross-shaped joint steel plate of the same size is also added to the outside of the structural column and beam, and a plurality of bolts are tightened together. 3. A structure in which protrusions that bite into the joint surface between a pillar and a beam having a structure are provided on both surfaces of the steel plate to sandwich a part that increases frictional force. 5. A structure in which a high-damping rubber plate or a high-damping rubber plate mixed with friction increasing pieces is sandwiched in place of the steel plate with protrusions of the structure of claim 4. A structure in which a high-damping rubber plate is sandwiched between two steel plates each having a protruding portion having a structure according to claim 4. 7. A structure in which the high-damping rubber plate of the joining structure according to claim 6 is replaced with a stainless steel plate and sandwiched. 4. A vibration control device (FIG. 3) in which a pillar and an upper and lower chord material having a structure according to claim 3 are bolted with a steel plate and a plate, and a high damping rubber is interposed between the upper and lower chord material fixing plate. 2. A beam structure in which a floor beam orthogonal to the composite beam having the structure of claim 1 is passed through between upper and lower chord members.