DE9400942U1 - Perforated brick - Google Patents

Abstract

A building block with a high ratio of air spaces has a number of parallel ribs (4,6,8) at right angles to the heat flow and joined at their outer ends by narrow strip ribs (20). The ribs are further braced by angled ribs (14) to provide mechanical strength without increasing the thermal conductivity unduly. The outer edges of the block are formed by the narrow strip ribs and the spaces (18) between the outer ribs. The angled support ribs provide a long thermal path.

Description

[File:ANM\KE0101 B1.doc] Description, 2Ö.CS|.J99<| «
Johann Kelierer · * * * ' *

Brick with half-timbered structure

Hollow bricks

The invention relates to a vertically perforated brick according to the preamble of claim 1.

Vertically perforated bricks are characterized by a number of straight inner webs that are perpendicular to the heat flow direction, which run across the width of the brick measured perpendicular to the heat flow direction and across the height of the brick, whereby the inner webs are connected to one another by connecting webs and supported against one another. The combination of inner and connecting webs results in a specific hole pattern when viewed from above.

20

25

30

35

Depending on the primary purpose of the brick or the main desired property of the brickwork, three basic requirements are placed on bricks for masonry construction, which partially contradict each other. Firstly, a vertically perforated brick should have good thermal insulation properties. Furthermore, vertically perforated bricks must meet certain requirements with regard to sound insulation and, finally, vertically perforated bricks must have a certain compressive strength. Good thermal insulation properties on vertically perforated bricks can best be achieved by connecting the inner webs that are perpendicular to the direction of heat flow with as few connecting webs as possible, so that as little brick material as possible is present in the direction of heat flow or the heat conduction path in the direction of heat flow is as long as possible. This is achieved in a particularly clear way with a generic brick according to DE-PS 30 30 846.

Although this generic vertically perforated brick can achieve a very good thermal resistance, since

[File:ANM\KE0101 B1.doc] Description, £0.04 .|99&Phi; **% Johann Kelterer ,* * J * · \ Brick with half-timbered structure ^# * **

the hole pattern of this well-known brick has large, i.e. elongated, vertical holes that run perpendicular to the direction of heat flow and are interrupted by a few connecting webs that run in the direction of heat flow, this well-known brick has problems, particularly with regard to sound insulation. Because the inner webs that run perpendicular to the direction of heat flow are connected to one another by a relatively small number of connecting webs, large unsupported wall sections of the inner webs arise inside the brick, which can resonate when sound is introduced and transmit the sound. Good thermal insulation and good sound insulation are therefore mutually exclusive in that, in order to achieve good sound insulation, the inner webs should be supported against one another by a large number of connecting webs in order to reduce the resonance ability of the inner webs at the critical low frequencies; however, such connecting webs increase heat permeability, since they run in the direction of heat flow.

Furthermore, when a vertically perforated brick is designed to be as thermally insulating as possible, i.e. with as few connecting webs as possible, the brick's raw density is initially reduced due to the missing connecting webs, so that the sound insulation ability of such a brick also suffers due to the comparatively lower raw density.

Compressive strength and thermal insulation capacity are

They also more or less compensate each other in that the high compressive strength of a vertically perforated brick requires a large number of connecting webs with which the inner webs are supported and stiffened against each other.

In contrast, the object of the present invention is to design a vertically perforated brick according to the preamble of claim 1 in such a way that it has the best thermal insulation properties

[File:ANM\KE0101B1 .doc] Description, Johann Kellerer . ·

Brick with half-timbered structure ****

on the one hand and compressive strength and/or sound insulation on the other hand has relatively good values at the same time.

This object is achieved according to the invention by the features specified in claim 1.

According to the invention, the inner webs are then connected by means of the connecting webs in a lattice-like manner in such a way that the nodes formed by the connection points of the connecting webs on the inner webs are arranged at a distance from one another that is transverse to the heat flow direction.

This design initially results in an extension of the path covered by the heat in the direction of the heat flow by several times the length of the brick in the direction of the heat flow, so that a vertically perforated brick according to the invention has excellent thermal insulation properties. At the same time, however, the sound insulation properties of a vertically perforated brick according to the invention are also very good, since the inner webs are supported against each other in a lattice-like manner by means of the connecting webs, so that they are less likely to resonate due to introduced sound. Finally, the vertically perforated brick also has excellent compressive strength, since the lattice-like support of the inner webs against each other means that very high compressive forces can be absorbed.

The individual properties, i.e. thermal insulation, compressive strength and sound insulation, can be further optimized if necessary, for example by changing the number and/or wall thickness and/or mutual spacing of the inner webs, and/or by changing the wall thickness and/or number of connecting webs. However, the lattice-like connection of adjacent inner webs to one another by means of the connecting webs remains in any case.

receive.

[File:ANM\KE0101 B1.doc] Description, 2&thgr;!&thgr;1·1&bgr;93;
Johann Kelierer .* ; *
Brick with half-timbered structure

Advantageous developments of the invention emerge from the subclaims.

For example, the two outer webs lying in the direction of heat flow are preferably reduced to narrow strips that extend over the height of the brick in the area of the later butt joints, between which pocket-like recesses are provided that run over the entire height of the brick. This multiple interruption of these two outer webs significantly increases the thermal resistance in these outer webs lying in the direction of heat flow.

If the narrow strips or pocket-like recesses in the two outer webs are offset from one another in such a way that the bricks placed next to one another in the area of the butt joints interlock like teeth, the stability of the masonry structure is initially increased. The heat transfer resistance is also increased in the area of the butt joint between two bricks.

To facilitate the tooth-like engagement of two adjacent stones in the butt joint area, the narrow strips have bevels on both sides. Furthermore, the narrow strips protrude with their end sections beyond the outline lines of the stone running in the direction of heat flow, so that the tooth-like engagement is further strengthened.

The connecting webs preferably run in a zigzag pattern between two adjacent inner webs. This zigzag pattern is initially the simplest design of a truss composite. Furthermore, this makes the heat conduction path particularly long, especially if the tips and bases of connecting webs formed by the nodes are spaced apart from each other on both sides of an inner web. In this way, the heat conduction path can be particularly advantageously designed in terms of its length.

[File:ANM\KE0101 B1.doc] Description, S0.0J.J994; *
Johann Kellerer .* II * *
Brick with half-timbered structure ** "

optimize if the tips of connecting webs formed by the nodes on one side of an inner web are located centrally between the foot points of connecting webs formed by the nodes on the opposite side of the inner web.

The zigzag course of the connecting webs is preferably symmetrical in a top view of the brick to a transverse center plane of the brick. This does not result in any restrictions regarding the installation position of the brick in the masonry; the masonry is always homogeneous.

The wall thickness ratio of connecting webs to inner webs is in the range of 1:1 to 1:10, preferably around 1:2 and the wall thickness of the inner webs is in the range of around 1 to 12, preferably around 4 to 5 mm and the wall thickness of the connecting webs is also in the range of around 1 to 12, preferably around 2 to 4 mm. Wall thicknesses below this can possibly cause difficulties when producing the brick on an extrusion press, as the strand just produced no longer has sufficient inherent stability due to the low wall thickness and collapses. Wall thicknesses above this can possibly cause problems when designing the hole pattern. Nevertheless, values outside the stated, preferred values for wall thickness ratio and wall thickness are possible.

Further details, aspects and advantages of the present invention will become apparent from the following description with reference to the drawing.

It shows:

Fig. 1 is a reduced plan view from above of a vertically perforated brick according to the invention;

[File:ANM\KE0101 B1.doc] Description, 20.0J.J99^ Johann Kellerer . * I I Brick with half-timbered structure **

Fig. 2 is a partial view, even smaller than that of Fig. 1, of two vertically perforated bricks according to the invention in a composite structure ; and

Fig. 3 is a partial view of a hollow brick according to the invention, enlarged compared to Fig. 1 and Fig. 2, to explain the principle of enlarging the heat conduction path.

The following description of the hollow brick according to the invention is based on the specific embodiment or hole pattern shown in Figures 1 to 3, with which the hollow brick is optimized in terms of thermal insulation, while at the same time good values for sound insulation and compressive strength are also obtained. It is understood that the present invention is not limited to this specific embodiment, but that designs of the hollow brick or its hole pattern that deviate from the graphic representation are also possible, as will become clear from the following description.

A brick according to the invention, designated in Fig. 1 with the reference number 2, has two parallel outer webs 4 and 6 in a known manner, which lie in the plane of the inner and outer sides of the masonry in the subsequent masonry assembly according to Fig. 2. Parallel to the outer webs 4 and 6, the brick 2 has a plurality of inner webs 8, which run straight and perpendicular to the two abutting sides 10 and 12 of the brick 2. The inner webs 8 are thus - as can best be seen from Fig. 2 - transverse to the heat flow direction, which is illustrated in Fig. 2 and Fig. 3 with the arrow W.

The connection of adjacent inner webs 8 is made via a plurality of connecting webs 14. The connecting webs 14 run in the illustrated configuration

[File:ANM\KE0101B1 .doc] Description, 20.0t. W94j Johann Kellerer .* J I

Bricks with half-timbered structure *

guide form in the zigzag shape shown in the drawing between two adjacent inner webs or between the outer web 4 and the adjacent inner web 8 and the outer web 6 and the adjacent inner web 8. The connection points of the connecting webs 14 on the inner webs 8 or the outer webs 4 and 6 form node points 16. According to the invention, the node points 16 are arranged at a distance from one another that is transverse to the direction of heat flow. More precisely, as is illustrated in Fig. 1 top left by the dot-dash lines A, B and C, the node points 16 of one and the same connecting web 14 or the connection points of a connecting web 14 on the two adjacent inner webs 8 or on the outer webs 4 and 6 and the adjacent inner web 8 are not on a common line A, B or C.

Thus, the tips and bases of connecting webs 14 formed by the nodes 16 are spaced apart from one another on both sides of an inner web 8. In Fig. 3, this would be the node 16 as the tip and the nodes 16a and 16b as the bases for the connecting webs 14a and 14b. The embodiment shown in Fig. 3 is particularly preferred, in which the tips of the connecting webs formed by the nodes 16 on one side of an inner web 8 are located centrally between the bases of connecting webs formed by the nodes 16 on the opposite side of the inner web. As will be explained further below with reference to Fig. 3, the heat conduction path through the brick 2 is particularly long.

Let us take a closer look at the upper left area in Fig. 1: one can see that the second connecting web 14 from above between the outer web 4 and the adjacent inner web 8 forms a connection point or a junction 16 on the line A and the other connection point or the other

[File:ANM\KE0101 B1.doc] Description, 20.0^94J j ·»· ..
Johann Kellerer »'It'll \ '*'*\

Brick with half-timbered structure **** ** ··* *·

Node 16 on line B. Starting from the node 16 on line B, where the connection between the connecting web 14 and the inner web 8 is made, the connecting web 14 that follows it has its connection point or node 16 with the outer web 4 on line C, etc. This results in the zigzag-like course of the connecting webs 14 between adjacent inner webs 8 or between the outer web 4 and the adjacent inner web 8 and the outer web 6 and the adjacent inner web 8. This zigzag-like course of the connecting webs 14 thus causes a framework-like connection and support of the inner webs 8 or the outer webs 4 and 6 with the adjacent inner webs 8.

It should be noted at this point that the course of the connecting webs shown in the drawing is to be understood as a preferred, but not restrictive, embodiment. The term "lattice-like connection" is to be understood as any multiple support of the inner webs with each other or of the outer webs with the adjacent inner webs.

Due to the zigzag shape of the connecting webs 14, the heat transfer resistance in the heat flow direction W is increased considerably compared to a perforated brick with connecting webs perpendicular to the inner webs, since the heat flow in the direction of the heat flow direction W - i.e. from the outer web 4 to the outer web 6 or vice versa - has to travel a considerably longer distance. In the illustration according to Fig. 3, which is greatly enlarged compared to Figures 1 and 2, it can be seen that heat entering the outer web 4 at the connection point or the node point 16 there between the two connecting webs 14a and 14b there must follow the course shown in dashed lines in Fig. 3, namely initially along the two connecting webs 14a and 14b which, due to the zigzag shape between the outer web 4 and the adjacent

[File:ANM\KE0101 B1.doc] Description, 20.0·&zgr;1594;;**J ·· ·**·
Johann Kellerer .'1!'IJ \ · *···

Brick with half-timbered structure

hard inner web 8 already represents a much longer path for the heat flow than the connecting webs running perpendicularly between the outer web 4 and the adjacent inner web 8. At the nodes 16a and 16b between the connecting webs 14a and 14b and the inner web 8, the heat flow enters this inner web 8 and then runs in the direction of the next node 16c, which forms the connection point between the inner web 8 and the connecting webs 14c and 14d, which run between the adjacent inner webs 8. If the node 16c is located in the middle between the two nodes 16a and 16b, the heat conduction path is particularly long, as can be seen directly from Fig. 3. At node 16c, the heat flow is again divided into the two long connecting webs 14c and 14d, until the heat flow enters the second inner web 8 in Fig. 3, etc. It is important here that the nodes of adjacent zigzag lines, seen in the direction of heat flow, are offset from one another transversely to the direction of heat flow. For example, node 16 on the outer web 4 is offset from nodes 16a and 16b on the adjoining inner web 8, seen in the direction of heat flow. Heat flowing in the connecting webs 14a and 14b must therefore take the further path in the inner web 8 shown in Fig. 3 when exiting these connecting webs and entering the inner web 8 in the area of nodes 16a and 16b, before entering the connecting webs 14c and 14d at node 16c. This results in a significant extension of the heat flow path between the outer webs 4 and

6. This extension of the heat flow path is a multiple of the straight-line distance between the two outer webs 4 and 6. The brick 2 according to the invention therefore has excellent thermal insulation properties.

As can best be seen from Figures 1 and 2, the brick 2 in the area of the two abutting sides 10 and 12 is not provided with a closed outer web in accordance with the

[File:ANM\KEO1O1B1.doc] Description, 20.01 .i Johann Kellerer ,

Brick with half-timbered structure **

The brick is not provided with external webs 4 and 6, but has a plurality of recesses 18 which are separated from one another by narrow strips 20 extending over the entire height of the brick. The end surfaces of the strips 20 which run perpendicular to the external webs 4 and 6 lie in two planes which lie outside the outline lines in the direction of heat flow, i.e. the end areas of the strips 20 protrude from these two outline lines. The two planes of the outline lines in the direction of heat flow are defined by two short wall sections 21 which then, together with the external webs 4 and 6, define the outline or perimeter line of the brick 2. As can best be seen in Fig. 1, the recesses 18 or strips 20 on the side of the joint side 10 are offset from the recesses 18 or strips 20 on the side of the joint side 12. Starting from the outer web 4 or the immediately adjacent inner web 8, the individual inner webs 8 are each connected to one another by the strips 20 either on the joint side 10 or the joint side 12, so that the inner webs 8 as a whole have a meandering course starting from the outer web 4 in the direction of the outer web 6.

Due to the offset arrangement of the recesses 18 or the strips 20, the brick 2 according to the invention can be joined together with another brick 2 in the area of the respective abutting sides 10 and 12, as shown in Fig. 2. This tooth-like engagement of adjacent bricks 2 in the area of the butt joint there not only results in a certain stabilization of the entire masonry composite, but also, particularly preferably, in an increase in the thermal resistance in the area of the butt joint between two adjacent bricks. The tooth-like joining together of two adjacent bricks is made easier by the fact that each of the strips 20 has two bevels 22 and 24, which make it easier to join or interlock two bricks 2. When building a masonry with the invention

[File:ANM\KE0101 B1.doc] Description, 20.01.1694
Johann Kellerer .·* ·
Bricks with half-timbered structure *

In the case of bricks 2 according to the invention, adjacent bricks are joined together in the area of the later butt joints in a crunchy manner, i.e. without mortar being introduced. As can best be seen in Fig. 2, a recess 18 in a brick is closed by a strip 20 on the adjacent brick and vice versa, so that a vertical hole 26 is formed directly on the strips 20 of one brick or their end faces in the adjacent brick. These additional vertical holes 26 result - as can best be seen in Fig. 2 - in a very homogeneous hole pattern in the later masonry composite and thus in a homogeneous thermal insulation property of the entire wall. Since the end areas of the strips 20 protrude from the outline lines in the direction of heat flow, the interlocking effect between two adjacent bricks 2 is increased.

As can also be seen from Fig. 1, the zigzag course of the connecting webs 14 is symmetrical with respect to a transverse center plane of the brick 2. This transverse center plane of the brick 2 is formed by a central inner web 28 according to Fig. 1. This measure ensures that in the embodiment of the brick 2 according to the invention shown in Fig. 1 with a total of thirteen inner webs 8 or with an odd number of inner webs 8, the number of connection points or nodes 16 on the side of the outer web 4 is generally equal to the number of nodes 16 on the side of the outer web 6. Due to this exact symmetrical design of the brick 2 with an odd number of inner webs 8, the position of a brick 2 in relation to the adjacent brick 2 does not need to be corrected by possibly turning a brick by 180° during the later construction of a masonry so that the number of nodes 16, for example, on the outside of the masonry, i.e. for example in the area of the outer web 4, is always the same for each individual brick; since the number of nodes 16 on the outer web 4 is equal to the number of nodes 16 on the outer web 6, it is irrelevant in which orientation the

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[File:ANM\KE0101 B1.doc] Description, 20<fi"i«94* j «"'j Johann Kellerer .·* · · * \ ]

Goat! with half-timbered structure ···· ·· ··

individual bricks 2 in relation to each other when the masonry is constructed.

The previous description of the present invention or the brick according to the invention was based on the specific design example for a brick with high thermal insulation capacity and good values for sound insulation and compressive strength. With minor modifications or variations, the present brick according to the invention can also be designed just as well in terms of optimized sound insulation capacity or optimized compressive strength. With hollow bricks, especially those with long, unsupported inner webs, which are supported with a few connecting webs to improve thermal insulation capacity, there is the problem that the long, unsupported inner web areas can resonate when sound is introduced into the brick and therefore a brick that is largely optimized in terms of thermal insulation capacity is usually less good in terms of its sound insulation capacity. In the brick according to the invention, however, the individual inner webs 8 are supported against one another by the plurality of connecting webs 14 in the area of the connection points or nodes 16 evenly, essentially over their entire length between the two abutting sides 10 and 12. A brick 2 according to the present invention, designed according to Figures 1 to 3 and largely optimized in terms of its thermal insulation capacity, therefore already has very good sound insulation capacity, since the short, unsupported sections of the inner webs 8 cannot resonate or can only resonate to a negligible extent when sound is introduced, so that the sound transmission through the material of the brick 2 is therefore low. The sound insulation capacity of the brick 2 according to the invention can be further optimized if necessary, without having to make any significant compromises in terms of thermal insulation capacity: to further improve the sound insulation capacity, more nodes are used.

[File:ANM\KE0101 B1.doc] Description, 20.6**18*)**j
Johann Kellerer _# ·* j |

Brick with half-timbered structure · · · · «·

points 16 are provided on the length of the inner webs 8 and the outer webs 4 and 6, so that the zigzag profile of the inner web becomes steeper. As a result, the individual inner webs 8 are supported against each other at even more nodes 16 via the connecting webs 14, so that there is an even lower probability that parts of the inner webs 8 will resonate when sound is introduced. Although this measure shortens the length of the individual connecting webs 14, since they automatically have a shorter length due to the steeper zigzag course between the individual inner webs 8, the thermal insulation performance of the brick 2 according to the invention is only insignificantly restricted by this, since the heat conduction in the direction of heat flow is still far greater than with a vertically perforated brick with a normal perforated profile, i.e. with connecting webs running perpendicular to the inner webs. The sound insulation properties of the brick optimized for sound insulation are also improved by the fact that the bulk density of the brick is increased by providing even more connecting webs 14 than shown in Fig. 1, which also contributes to sound insulation.

In order to optimize the brick 2 according to the invention in terms of its compressive strength, it is in principle sufficient to increase the wall thicknesses of the connecting webs 14 and also of the inner webs 8. In this case, it may be possible to omit every second inner web 8 in the illustration in Fig. 1 in order to enable connecting webs 14 with a greater wall thickness to run cleanly back and forth between adjacent inner webs 8. The spacing of inner webs 8 from one another and the material or wall thicknesses of the inner webs 8 and the connecting webs 14 also depend significantly on the material used to produce the brick 2 according to the invention or the resulting restrictions in the die of an extrusion press.

[Fi!e:ANM\KE0101 B1.doc] Description, 2O01.W94 j
Johann «your .·* · · ·

Brick with half-timbered structure

The wall thickness ratio of the connecting webs 14 to the inner webs 8 is in the range from about 1:1 to _1:10, preferably about 1:2. The wall thickness of the inner webs is in the range from about 1 to about 12 mm, preferably about 4 to 5 mm, and the wall thickness of the connecting webs is also in the range from about 1 to 12 mm, preferably about 2 to 4 mm. Wall thicknesses of the inner webs 8 and the connecting webs 14 that deviate upwards or downwards from the stated values are also possible in special cases.

As can be seen from what has been said so far, the brick 2 according to the invention is characterized by the fact that it can be optimized both in terms of its thermal insulation capacity and its compressive strength and its soundproofing capacity without any major modifications to the hole pattern of the brick 2 being necessary. Due to the zigzag-like run of the connecting webs 14 between the inner webs 8 or between the outer webs 4 and 6 and the adjacent inner webs 8, the brick 2 according to the invention already has, in principle, very good thermal insulation capacity coupled with good soundproofing properties and high compressive strength. Both the soundproofing properties and the compressive strength can be easily optimized by arranging the connecting webs 14 differently from the inner webs 8 - without any major compromises in terms of thermal insulation capacity.

A further advantageous property of the brick 2 according to the invention is that, despite the high proportion of holes in the brick cross-section, the brick has a high level of stability due to the framework-like reinforcement. This is particularly important with regard to brick production using an extrusion press, as the framework-like reinforcement of the individual inner webs 8 means that there is no risk that, despite the high proportion of holes in the mouth-

£Fi!e:ANM\KE0101 B1.doc] Description, 20*0*1**984*;
Johann Kellerer . · J |

Brick with half-timbered structure **'* "

The brick strand leaving the piece collapses under the influence of gravity. Furthermore, the high strength of the brick blank allows the subsequent bearing surfaces to be ground, since the brick offers sufficient inherent stability to the grinding wheels due to the framework-like reinforcement. A brick 2 according to the invention ground in this way can then be glued in a particularly advantageous manner.

Claims (11)

Protection claims 10 1. Vertically perforated brick with outer webs (4, 6) forming the peripheral walls of the brick and a plurality of straight inner webs (8) lying transversely to the heat flow direction, which preferably run across the width of the brick (2) measured perpendicular to the heat flow direction and across the height of the brick, the straight inner webs (8) being connected to one another by connecting webs (14) and supported against one another, 20 characterized in that the connection of the inner webs (8) by means of the connecting webs (14) is carried out in a framework-like manner such that the nodes (16) formed by the connection points of the connecting webs (14) on the inner webs (8) are arranged at a distance from one another that is transverse to the heat flow direction. 2. Vertically perforated brick according to claim 1, characterized in that the two outer webs lying in the direction of heat flow are reduced in the region of the later butt joints to narrow strips (20) extending over the height of the brick, between which pocket-like recesses (18) extending over the entire height of the brick are provided. 3. Vertically perforated brick according to claim 2, characterized in that the narrow strips (20) or pocket-like recesses (18) in the two outer webs are offset from one another in a plan view of the brick in such a way that bricks (2) placed against one another in the region of the butt joints 35 interlock. :: Suite it .- [FiIeANIWKEOIOIALdOC] Claims, 20.01.*99<» Johann Kellerer . * Brick with half-timbered structure 4. Vertically perforated brick according to claim 2 or 3, characterized in that the narrow strips (20) protrude with their end sections beyond the outline lines of the brick (2) running in the direction of heat flow. 5. Vertically perforated brick according to one of claims 2 to 4, characterized in that the narrow strips (20) have bevels (22, 24) on both sides. 6. Vertically perforated brick according to one of claims 1 to 5, characterized in that the connecting webs (14) between two adjacent inner webs (8) run in a zigzag pattern. 7. Vertically perforated brick according to one of claims 1 to 6, characterized in that the tips and base points of connecting webs (14) formed by the node points (16) are spaced apart from one another on both sides of an inner web (8). 8. Vertically perforated brick according to claim 1, characterized in that the tips of connecting webs (14) formed by the nodes (16) are arranged on one side of an inner web (8) centrally between the connecting webs (14) formed by the nodes (16) formed base points of connecting webs (14) lie on the opposite side of the inner web (8). 9. Vertically perforated brick according to claim 6, characterized in that the zigzag course of the connecting webs (14) in a plan view of the brick is symmetrical to a transverse median plane (28) of the brick (2). 10. Vertically perforated brick according to one of claims 1 to 9, characterized in that the wall thickness ratio of connecting webs (14) to inner webs (8) is in the range from 1:1 to 1:10, preferably about 1:2. [Fi1e:ANM\KE0101 A1.doc] Johann Kellerer Brick with half-timbered structure Claims, 20.01.4994 ; 11. Vertically perforated brick according to one of claims 1 to 10, characterized in that the wall thickness of the inner webs (8) is in the range of about 1 to 12, preferably about 4 to 5 mm and that the wall thickness of the connecting webs (14) is in the range of about 1 to 12, preferably about 2 to 4 mm.