BE1025477B1 - Hollow plastic building elements with a honeycomb or half-timbered structure - Google Patents

Abstract

Hollow plastic wall elements with a honeycomb or half-timbered structure are designed in such a way that they are strong, rigid, light and stackable. The inner hollow honeycomb or truss structure is completely filled with insulating material so that the total wall thickness consisting of the load-bearing part of the wall and the insulating part of the wall does not change after the insulation has been applied. The insulation is in the shaping part of the wall. The structural strength of the wall is guaranteed by partly the same honeycomb or lattice structure in which the insulation is applied, as by the larger empty structures aligned above each other into which a structural element can possibly be pushed (pole).

Description

Hollow plastic building elements with a honeycomb or half-timbered structure

Description

1. Subject

Hollow plastic building elements with an internal 3D honeycomb structure or truss structure are building elements that are placed on top of each other without binders such as glue or mortar. Both the insulation material and structural elements are installed in the hollow structure.

The total thickness of the wall / floor does not exceed the thickness of the hollow plastic building element itself.

2. Problem definitions

2.1 Problem definition 1

Due to rising land prices and rising construction costs, construction plots and also the gross surface area of homes are becoming smaller.

The walls are getting thicker due to the increasing insulation requirements.

The result is that the net available living space is getting smaller and smaller in relation to the construction costs.

2.2 Problem definition 2

Because the size of the families is steadily decreasing, there is an increasing demand for housing units.

Despite tools such as cranes, (residential) construction remains a difficult occupation, with the result that construction workers are increasingly unable to perform their work until the ever-increasing retirement age.

The influx of new workers for the structural work is limited partly due to the heavy work and the moderate display.

The gap between the demand for residential units and the number of residential units that can be built with the available population of workers is growing.

2.3 Problem definition 3

Despite the pressure that is put on contractors to work around the year, (residential) construction (and in particular rough construction) is still a seasonal work. For example, it is not possible to work in rainy weather, temperatures that are too low or too high.

By nevertheless carrying out work during less favorable weather conditions, workers are physically burdened even more, the quality of the work decreases, the production efficiency of the contractor decreases, so that the contractor must meet these costs in his price.

All this has as a consequence that problems 1 and 2 are only reinforced.

2.4 Problem definition 4

The (residential) construction (and then mainly the structural work) is accompanied by a lot of construction waste.

2.5 Problem definition 5

A lot of transport is required in relation to the net volume of building materials for the realization of a home (and in particular the rough construction).

The extent of this transport is only rarely limited by the amount (size) of building materials, but is usually determined by the weight of these materials.

Heavy transport is needed for the supply and removal of equipment (cranes, generators, etc.), the supply of material and the removal of construction surpluses such as debris and material residues.

3. State of the art

3.1 Prefab building materials

With the use of (semi) prefab building materials (entire wall elements in concrete or woodwork), an attempt was made to limit the influence of external factors such as the weather. Complete buildings are made ready for use in factory 55, so that they can be assembled on site with a minimum of outside work and a minimum of waste.

The disadvantage of these construction methods is almost always • A long design process and production process in the factory • it is almost impossible to adjust these homes later · heavy equipment is needed for the assembly of the house

BE2017 / 0113 • The number of transport movements is increasing • Design errors can only be solved with difficulty on site • As a private individual it is almost impossible to build with this type of system yourself • Due to the monolith structure, the demolition of these types of buildings is difficult and expensive

3.2 Implementation techniques to be able to build faster

There are already a number of building techniques that allow building outside faster without building itself physically demanding labor. Most of these techniques are a variant of the use of a formwork that may or may not be partially lost, whether or not provided with an insulating layer. After placement, this lost formwork is filled with concrete, so that the load-bearing structure is realized.

The disadvantage of these building methods is almost always • it is almost impossible to adapt these houses later • the application of the concrete is work that needs to be done by professionals • they become heavy, massive buildings that must be properly founded • by the monolithic structure the demolition of these types of buildings is difficult and expensive

4. Advantages of hollow plastic building elements with a 3D honeycomb or half-timbered structure

4.1 Walls built up from the structural elements are lightweight (less 75kg / m ^z), and have good insulating properties in relation to their thickness

Walls built from these building elements are lighter per m ^{2 of} built wall and are completely filled with, for example, PUR foam, a lower U value than other walls with a comparable thickness.

The problem of walls becoming increasingly thicker in order to be able to meet the insulation requirements is therefore eliminated.

See the tables below.

Properties Material inside wall thickness 20 cm Weight [kg / m ² ] U value [W / m ² K] Concrete 15 cm + 5 cm PUR 375 0.46 Brick 15 cm + 5 cm PUR 145 0.46 Aerated concrete 20 cm 90 0.54 Building element in plastic d 20 15 * I 50 ** 0.18 ***

* weight of the building elements without filling ** including weight of concrete if 1 in 3 vertical pipes is filled with concrete ”* average if 1 in 3 vertical pipes is filled with concrete (0.82 x 0.15 + 0.18 x 0.33)

Properties Material inside wall thickness 30 cm Weight [kg / m ² ] U value [W / m ² K] Concrete 15 cm + 15 cm PUR 375 0.15 Brick 15 cm + 15 cm PUR 145 0.15 Aerated concrete 30 cm 135 0.54 Building element in plastic d 30 20 * I 75 **** 0.12 *****

* weight of the building elements without filling **** including weight of concrete if 1 in 3 vertical pipes is filled with concrete ***** average if 1 in 3 vertical pipes is filled with concrete (0.82 x 0.1 + 0.18 x 0.21)

4.2 Simple implementation, time and cost saving

The execution time is limited to 1 week per floor (of approximately 150 m2) with 2 professionals.

The execution time is weather dependent, the building blocks can be mounted in full sun, rain and snow.

No cranes, scaffolding or other heavy equipment are needed, so the time to set them up is not necessary either.

BE2017 / 0113

4.3 Installing utilities is simple and cheap

The utilities can be fitted in the pipe pairings, electricity cables no longer require separate casing pipes.

The connection up to the connection (switches, faucets, etc.) can be done by simply removing part of the grid structure.

The labor-intensive work for trenching and subsequent removal is no longer necessary.

4.4 No more construction errors compared to the architect plan

Execution errors can hardly occur anymore, the contractor receives a lay and stacking plan when ordering.

4.5 Transport costs in the construction phase are reduced

Since the material is lighter in weight than other building materials (see tables in 4.1), the number of transports through it is determined by the net volume of building material that is required and no longer by the maximum loading capacity of the truck.

No more equipment needs to be brought in and removed.

No building debris is released during the construction of the house that must be removed afterwards.

The building elements are so light that the transport of the wall elements can be done by a light truck.

4.6 No more thermal bridges and completely airtight

Since the nodes all consist of hollow elements that are filled with insulating foam, cold bridges can no longer be created.

The structural elements are completely encased in insulating material.

The entire shell consists of a hollow structure that is completely sprayed on with insulation and which also connects to the floor insulation at the bottom.

4.7 The building elements can be reused after demolition

Because the building elements have standard dimensions and the interconnections are not realized by interlocking elements, or by using glue or other adhesive, but by cylindrical (structural) pins and standard bolt / nut connections, constructions made from these building elements can also be made. disassemble without the mutual components being lost.

4.8 Little or no construction waste

Because the supplied building elements have standard dimensions or are supplied according to customer specifications, the material that is released when sawing out and cutting out small pieces of grid and pipe wall for the connections of the utilities is the only construction waste that is produced. As the building elements consist of plastic, this material can be used as a secondary building material. Because the insulation is injected into the building elements (either on site or in the factory) there is no waste of broken or cut insulation material. '

4.9 Extra suitable for use In areas sensitive to hurricanes and earthquakes

Provided extra anchors to the hurricane and earthquake foundation plate

If steel cables are stretched through the outer walls and these are anchored to the foundation plate, in the event of a hurricane or earthquake the house will move under the force but probably not collapse.

Even if a home collapses, human suffering will be limited as the building materials are all very light.

Moreover, after a collapse or uninhabitable declaration, all materials can be reused, so that reconstruction can be done much faster and cheaper.

4.10 Extremely suitable for temporary walls and renovation

Since the wall elements are 100% reusable, spaces can be easily redesigned with the same materials.

BE2017 / 0113

5. Description of hollow plastic building elements with a 3D honeycomb or half-timbered structure

The building elements (drawing 1) consist of a hollow design frame made of plastic (drawing 2), internally provided with a 3D honeycomb or lattice structure (drawing 3) made of plastic? These individual parts together form the building element (drawing 8).

The design framework consists of 4 vertical open flat walls (Y) that form the sides, a non-flat open top (2) and a non-flat open bottom (^).

The vertical walls QJ provided with lattice structure (5) are visible.

large openings (4) so that the 3D honeycomb structure or

The vertical walls are provided with recesses (ê) for mounting by means of bolts and nut connections.

The wall at the top (drawing 5) is provided on the outside with a flat edge (7) around round and diagonally rising edges (ß).

The wall at the top of drawing 5) is provided with openings (9), so that the 3D honeycomb structure or lattice structure (5) is visible

The bottom wall is provided on the outside with a flat edge (Î2) all around and diagonally rising edges yj)

The bottom wall (drawing 6) is provided with openings Cj), so that the 3D honeycomb structure or lattice structure (5) is visible

The rising edges at the top ζδ) and the rising edges at the bottom fit together.

The building elements have a 3D honeycomb structure or frame structure (j) that fills the entire shaping frame (drawing 2) from the lower front corner (16) to the right rear corner Q?) And from the lower right front corner Q§) to the upper left rear corner ( 19).

The building elements have a larger empty structure (e) internally that pierces (20) the 3D honeycomb structure or truss structure (5) vertically at a fixed distance A from each other and a fixed distance A / 2 from the edges

The larger empty structures ¢ 0) extend to the top of the upright diagonal edges (Î3) at the bottom and the upright diagonal edges (δ) at the top, so that when stacking the building elements these larger empty structures (ίθ) are aligned with each other .

Claims (4)

Conclusions 1st conclusion: A hollow building element consisting of 6 open plastic walls and characterized in that the interior of one 3D honeycomb or lattice structure is provided 2nd conclusion: A building element according to claim 1 and characterized in that no binding agents such as glue or mortar are required for processing. 3rd conclusion: A building element according to claim 1 and characterized in that insulation material is provided between the 3D honeycomb or lattice structure. 4th conclusion: A building element according to claim 1 and characterized in that structural elements are provided in the larger empty structures.