FIELD OF THE INVENTION
[0001] The claimed method for constructing wooden houses, buildings, and structures is related
to the construction industry and can be used for making individual blocks of timber
and for constructing log houses, bath houses, and other structures.
BACKGROUND OF THE INVENTION
[0002] There are several methods for joining wooden components by grooves and pins, metal
rods and ties, dowels, and pins, in which the structure remains in a loose state and
further experiences all kinds of wood deformation. For example, dowels and ties become
no longer of any use, being loosely fitted in their holes, and prevent any finishing
jobs being done on the outside, heat insulation of the joints between the timbers,
paintwork, and interior carpentry, and within the next two years, and still further,
another two to three years, the structure would be subjected to all kinds of deformation
and develop new cracks and cause destruction of heat-insulated joints between the
timbers.
[0003] A prior art method for fastening the walls of wood panel houses is disclosed in Patent
No.
2,135,708, "A Prefabricated Wood Panel Building," of February 24, 1998, published on August
27, 1999, IPC 6 E04B1/10. The method comprises joining the panels by grooves and spikes
provided at the ends of the panels and metal rods placed in holes 3 mm in diameter,
and ties.
[0004] This prior art method weakens the corner joints because of the grooves provided in
the beams, for which reason the durability and lifetime of the building are reduced.
The weak cross (vertical) rods in holes and absence of resilient elements do not close
the gaps as the beams shrink with drying.
[0005] Another method for constructing wooden houses, buildings, and structures is described
in Patent
RU 2,250,312 of October 9, 2002, published on April 20, 2005, IPC 7 E04B1/10.
[0006] The prior art method comprises drilling cross holes in the beams, or logs, or other
components, extending cross ties through the beams, or logs, or other components,
and tightening them on the ties with nuts. The beams, or logs, or other components
used in the walls are shifted by two or a larger number relative to the preceding
beams, or logs, or other components to produce projections and recesses. Adhesive
is applied between the beams, or logs, or other components. Longitudinal ties are
placed in the grooves, and each of them, with both ends thereof extending short of
the wall ends, is connected to one of the cross ties. The walls are placed on a foundation.
All the walls, including intermediate walls and partitions, are joined, the joints
are sealed, with projections of one wall inserted into the recesses of another wall.
The house units, each wall, and the blocks are pressed by longitudinal ties and nuts
against one another. Cross ties are extended through the projections of the walls
to be joined, and all joints are tightened by nuts through resilient elements. Panels
of the floor, ceiling, and roof, their joists provided with vertical holes for ties
to be extended therethrough, are suspended on cantilevers hung by the holes provided
therein on the cross ties, the floor and cantilevers being supported by the beams,
or logs, or other components. The walls are joined to the foundation, floor, ceiling,
and roof through resilient elements by cross ties or nuts movable in the grooves upon
wood shrinkage with drying or moistening.
[0007] The prior art method for building walls of prefabricated log or beam houses and a
prefabricated wall of Patent
RU 2,041,842 of September 27, 1995, published on September 27, 1995, IPC
6 E04B 2/00, E04C 2/12, which is closest to the present invention in technical idea,
comprises making a beam or log of two lengths placed successively on each other, drilling
through cross holes therein and tightening them by a screw joint such as a rod provided
at one end thereof with a support element in the form of a heel, and at the other
end thereof with a thread for a coupling nut and washer to be screwed thereon.
[0008] The prior art method does not, however, make for permanent tightness of the walls
and corner joints because of the need for periodic calibrated tightening of the screw
joint nuts over the lifetime of the building as the beams change their dimensions
variously upon shrinkage through drying and moistening considerably, the cross dimensions
of the beams decrease and no tightening by the ties occurs automatically; and it is
difficult to assemble the walls having a large number of projections and recesses
formed by the beams.
SUMMARY OF THE INVENTION
[0009] It is an object of the present invention to provide a method for assembling elements
of wooden structures, including those that have various defects, such as linear deformations,
and allowing permanent forced shrinkage of the building to prevent linear deformations
of elements of the wooden structures upon shrinkage, maintain tightness of contact
between the elements during the lifetime of the structure owing to the high permanent
stress generated by the fastening unit at the installation points thereof.
[0010] The object of this invention is achieved by a method for constructing wooden houses,
buildings, and structures, wherein a fitting recess is drilled in the upper wooden
component, a fastening unit is fitted therein, and the components are drawn together,
said method comprising constructing a building by first tightening a corner, tightening
the wooden components by a spring fastening unit, the spring fastening corner unit
being fitted in the fitting recess drilled coaxially with the axis of the corner joint
of the building walls; turning the spring fastening unit until the threaded part thereof
comes out of the upper component of the building and is screwed into the underlying
component of the building; tightening the upper and underlying components until the
spring is fully compressed and the gap is closed in the fitting recess between the
timbers; compressing thereby a component of one wall between two components of another
wall; drilling further fitting recesses in the next components placed on one and the
other walls; spacing the axis of said fitting recesses away from the axial line of
the corner joint of the building walls up to 200 mm along the length of each component
to receive the spaced fastening units, said fastening units joining the next two components
of one wall; fitting the corner fastening units and spaced fastening units in the
next timbers of the building in a staggered pattern; distributing the remaining spring
fastening units, after the corner has been fastened, over the length of the component
at intervals of 900 mm to 1,300 mm for components measuring 180 to 240 mm in cross-section;
the drilling depth being 80 to 100 mm for diameters more than 240 mm; the drilling
depth being 60 to 70 mm for a log of 180 to 240 mm in diameter; and the interval between
the spring fastening units being reduced to 1,000 mm for cross-sections in excess
of the above figures.
[0011] The threaded spring fastening unit used to join the wooden components helps simplify
the assembly of components without drilling holes in advance to receive the threaded
part, said components including those that have various defects, such as linear deformations,
spiral, or arch, and to make the building usable much faster and have a higher quality
than is possible with components assembled by any other techniques.
[0012] A corner of wooden components joined by spring fastening units coaxial with the axis
of the corner of building walls joined together and the fastening units provided in
successive components placed on one and the other walls and spaced away from the axial
line of the corner of building walls up to 200 mm along the length of each component
help fasten the building corner reliably without placing all the fastening units along
the axis of the corner of the building walls and allows forced permanent shrinkage
of the building, without affecting the quality thereof, thereby reducing cracking
of the components.
[0013] Providing the corner fastening units and spaced units in a staggered pattern on the
successive timbers causes distribution of the tightening force along the length of
the components, makes building corner fastening more reliable, and prevents linear
deformation of the building components, and crack and gaps developing between them
during the lifetime of the building.
BRIEF DESCRIPTION OF THE DRAWINGS
[0014] The present method for constructing wooden houses, buildings, and structures is performed
with the use of a fastening unit for assembling wooden buildings and structures. The
idea of the claimed invention will be clear from the accompanying drawings, wherein
FIG. 1 is a view of a spring fastening unit; FIG. 2 is a view of the spring fastening
unit in the working position; and FIG. 3 is a diagrammatic view of the spring fastening
unit fitted in timbers.
[0015] FIGS. 1, 2, and 3 show a fastening unit 1, a faceted head 2, an upper stop element
3, a spring 4, a lower stop element 5, a cylindrical rod 6, a smooth part 7 of the
rod, a threaded part 8 of the rod, a tapered part 9 of the rod, an upper component
(a log or beam) 10 of the building, a lower component (a log or beam) 11 of the building,
a fitting recess 12 between the timbers, an axial line 13 of a corner joint of the
walls, an axial line 14 of spaced fastening units, a corner fastening unit 15, a spaced
fastening unit 16, and a fitting recess 17 of a fastening unit.
DESCRIPTION OF A PREFERRED EMBODIMENT
[0016] The number of fastening units 1 needed for construction is assessed first. Consideration
is given to the diameter and cross-sectional area of a beam to have the number of
units required.
[0017] Construction of a building begins with corner assembly. Lower component 11 of one
building wall is put in place, and a component of the other building wall is placed
on it at an angle, with upper component 10 of the first building wall placed on top
with its timber fitting recess 12 facing downward.
[0018] A fitting recess 17 is drilled in upper component 19 of the building corner formed
in this way for corner fastening unit 15 coaxially with axis 13 of the corner assembly
of the building walls. The depth of the recess drilled depends on the cross-sectional
area of the log. The depth of the recess ranges from 60 to 70 mm for a log diameter
of 180 to 240 mm, and between 80 and 100 mm for log diameters over 240 mm.
[0019] A first corner spring fastening unit 15 is fitted into recess 17 drilled, without
drilling a hole for the threaded part of the fastening unit that is screwed in until
threaded part 8 comes out of upper building component 10 and enters lower building
component 11, and the upper and lower components are pressed against one another until
the spring is fully compressed to close the gap in fitting recess 12 and the component
of one wall is clamped between the two components of the other wall.
[0020] A further component is placed thereupon on the first and second walls, and fitting
recesses 17 are drilled in each component to make the fastening of the building corner
more secure and to distribute the tightening force over the length of the wall for
spaced fastening units 16 having axis 14 thereof spaced to a distance of 200 mm along
the length of the first and second components from axial line 13 of the building corner
assembly (FIG. 3). Spaced fastening units 16 join each successive pair of wall components
together.
[0021] The building is further assembled in the same manner. The corner is assembled from
successive components by drilling fitting recess 17 in upper component 10 for corner
fastening unit 15 coaxially with axis 13 of the corner assembly of the building, and
so on.
[0022] Corner fastening units 15 and spaced units 16 are fitted in the successive timbers
of the building in a staggered pattern, the axes of all corner units being aligned
with axial line 13 of the corner wall assembly (FIG. 3) and the axes of spaced units
16 being spaced to a distance of up to 200 mm from axial line 13 of the corner wall
assembly.
[0023] After the corner has been fastened, the remaining fastening units are distributed
along the length of the log or beam at a spacing of 900 to 1,300 mm for log diameters
or beam cross-section of 180 to 240 mm. The spacing of units 1 is reduced to 1,000
mm for diameters or cross-sections over 240 mm.
[0024] Spring fastening unit 1 applies constant stress to the component during assembly
when the spring is compressed to 95 kgf
2, without requiring further regular tensioning of the fastening units during the lifetime
of buildings.
[0025] Since a log or beam of a building most frequently has a length of 5,500 mm, four
fastening units are used to produce a total force of 380 kgf that presses the components
against one another. The spring fastening units absorb the forces originating in the
components every second and in this way help keep the building intact.
[0026] Comparative climate endurance tests of buildings assembled by different techniques
have shown that finishing jobs can be started inside and on the outside of the buildings
assembled by the claimed methods using an experimental batch of spring fastening units
immediately, rather that two or three years upon shrinkage. The spring fastening units
absorb the forces generated by the components every moment and, in this way, keep
the building intact.
[0027] The technical effect of a spring fastening unit holding wooden components together
in a simple assembly arrangement maintains constant forced shrinkage of the building
without causing adverse effects and prevents linear deformations of the building components,
reducing cracking of the components and formation of splits and gaps between them
during the lifetime of the building as a result of the staggered pattern of the corner
and spaced spring fastening units as the building corner is assembled and a corner
spring fastening unit is placed in its fitting recess drilled coaxially with the axis
of the corner assembly of the building walls, and the axis of the spaced fastening
units is moved up to 200 mm away from the axial line of the corner assembly along
the length of each component to join a successive pair of components of one wall.
1. A method for constructing wooden houses, buildings, and structures by drilling a fitting
recess in an upper wooden component, fitting a fastening unit therein, and compressing
the components, wherein construction of a building begins with forming a corner assembly;
the wooden components are joined by a spring fastening unit; a corner fastening unit
is fitted in the fitting recess drilled coaxially with the axis of the corner assembly
of the building walls; the fastening unit is screwed in until the threaded part thereof
comes out of the upper component of the building and enters the underlying component
of the building; the upper and underlying components of the building are pressed together
until the spring is fully compressed to close the gap in the fitting recess between
the timbers, the component of one wall being compressed between the two components
of the other wall; and fitting recesses are drilled in each of the successive components
placed one upon the other, the axis of said recesses being spaced from the axial line
of the corner assembly of the walls of the building along the length of each component,
to receive the spaced fastening units to join a successive pair of components of one
wall.
2. The method of claim 1, wherein the axis of the spaced fastening units is spaced from
the axial line of the corner assembly of the walls of the building up to 200 mm along
the length of each component.
3. The method of claim 1, wherein corner fastening units and spaced fastening units are
fitted in the successive timbers of the building in a staggered pattern.
4. The method of claim 1, wherein after the corner has been assembled, the remaining
spring fastening units are distributed along the length of a component at a spacing
of 900 to 1,300 mm for a component 180 to 240 mm in cross-section.
5. The method of claims 1 and 4, wherein the spacing of the spring fastening units is
reduced to 1,000 mm for cross-sections larger than that of claim 3.
6. The method of claim 1, wherein the depth of the recess drilled is between 60 and 70
mm for a log diameter of 180 to 240 mm.
7. The method of claims 1 and 6, wherein the depth of the recess drilled is between 80
and 100 mm for diameters larger than 240 mm.