JP3829309B2 - Glass block - Google Patents

Glass block Download PDF

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Publication number
JP3829309B2
JP3829309B2 JP17221393A JP17221393A JP3829309B2 JP 3829309 B2 JP3829309 B2 JP 3829309B2 JP 17221393 A JP17221393 A JP 17221393A JP 17221393 A JP17221393 A JP 17221393A JP 3829309 B2 JP3829309 B2 JP 3829309B2
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JP
Japan
Prior art keywords
glass block
glass
stress
elastic material
block
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
JP17221393A
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Japanese (ja)
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JPH0710575A (en
Inventor
行一郎 吉川
道雄 山地
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Nippon Electric Glass Co Ltd
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Nippon Electric Glass Co Ltd
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Priority to JP17221393A priority Critical patent/JP3829309B2/en
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    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B23/00Re-forming shaped glass
    • C03B23/20Uniting glass pieces by fusing without substantial reshaping
    • C03B23/24Making hollow glass sheets or bricks

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Surface Treatment Of Glass (AREA)

Description

【0001】
【産業上の利用分野】
本発明はガラスブロックに関し、特にガラスブロックパネルに用いられるガラスブロックに関するものである。
【0002】
【従来の技術】
ガラスブロックは、一対の有底無蓋の箱型形状を有するガラス成型体が、互いの開放端縁で熔着一体化されてなるものであり、断熱性、遮音性、耐候性、透光性に優れた建築材料であるため、建物の外壁材や内装材あるいはベランダ等に広く使われている。例えば、特許文献1〜5には一対の有底無蓋の箱型形状を有するガラス成型体が、互いの開放端縁で熔着一体化されてなるガラスブロックが開示されている。
【0003】
ガラスブロックの施工は、建築現場でガラスブロックを1個ずつ積み上げ、各ガラスブロックをモルタルで接着固定させることにより行われるのが一般的であるが、工期の短縮と施工工程を簡略化するために、外枠内に複数個のガラスブロックをモルタルで固定してなるガラスブロックパネルを予め工場で作製し、これを建物の開口部に組み込む、いわゆるパネルウォール工法が開発され、採用されている。この工法の特徴は、建物の大開口部に使用できることと、工場生産によりガラスブロックパネルを安定した品質で供給できることにある。
【0004】
このような工法の発達により、近年ガラスブロックが天井等の大開口部や高層ビルの外壁材料として使用されるようになってきている。
特許文献1: 実開昭63−98352号公報
特許文献2: 実公昭36−32658号公報
特許文献3: 実公昭39−22160号公報
特許文献4: 特開平3−146431号公報
特許文献5: 特開平4−175237号公報
【0005】
【発明が解決しようとする課題】
ところで従来の1個積みの場合も、ガラスブロックパネルを用いたパネルウォール工法の場合においても、施工されたガラスブロックには、モルタルの乾燥収縮によって大きな圧縮応力が側面に加わり、同時にこの圧縮応力の反作用として内側面には相応する引っ張り応力が発生する。しかしガラスは引っ張り応力に対して弱い性質を持っているため、ブロック内面の強度の最も弱い熔着部分に応力が集中して割れが生じることがある。また地震等によって外的応力が突発的に加わった場合にも、同様に熔着部分から割れる危険性がある。
【0006】
ガラスブロックに割れが生じると、意匠上の問題や、破片の落下等による事故を防止するために、そのブロックを取り替える必要があるが、特にパネルウォール工法を利用して施工した天井等の大開口部や高層ビルの壁面の場合、ガラスブロックの取り換え作業は非常に難しく、また危険を伴う。
【0007】
このような事情から、ガラスブロックの割れを防止することが非常に重要な課題となっている。
【0008】
本発明は上記事情に鑑みなされたもので、熔着部からの割れが生じ難いガラスブロックを提供することである。
【0009】
【課題を解決するための手段】
本発明のガラスブロックは、一対の、有底無蓋の箱型形状を有するガラス成形体が、互いの開放端縁で熔着一体化されてなるガラスブロックにおいて、該ガラスブロックの熔着部全周に亙って熔着部への応力を分散させる弾性材料が装着されてなることを特徴とする。
【0010】
弾性材料としては、熔着部への応力を分散させるものであれば特に限定はなく、例えばゴムバンドやビニールテープを使用することができる。
【0011】
【作用】
本発明のガラスブロックは、熔着部全周に亙って弾性材料が装着されてなるために、モルタルの乾燥によって生じる圧縮応力や地震等によって突発的に生じる外的応力が弾性材料によって分散され、応力が熔着部に集中しなくなる。
【0012】
【実施例】
以下、実施例に基づいて本発明のガラスブロックを説明する。
【0013】
(実施例1)
まず、一対の、有底無蓋の箱型形状を有するガラス成形体が、互いの開放端縁で熔着一体化されてなる190×190×95mmの大きさのガラスブロックを9個用意した。次いで図1に示すように、各々のガラスブロック10の熔着部11全周に、弾性材料として幅50mm、厚さ2mmのゴムバンド20を装着した。このようにして弾性材料が装着されたガラスブロックを、外枠内に、相互に間隔を設けて3×3列で配置し、その間隔内にモルタルを充填し、温度20℃、湿度60%の環境試験室内で1ヵ月間養生させて試験体1を作製した。
【0014】
このようにして作製した試験体1中のそれぞれのガラスブロックに作用する圧縮応力の大きさを精密歪検査器を用いて求めたところ、約50kg/cm2 であった。なお圧縮応力は、以下の式により定量した値である。
【0015】
【数1】

Figure 0003829309
【0016】
次に、試験体1を大型環境試験装置を用いて−30℃から+80℃の熱サイクルを1日単位で合計10サイクル与える強制応力負荷試験を行った後、試験体中の各ガラスブロックを、ハロゲン光源を用いて肉眼で詳細に観察したところ、試験体1中のガラスブロックには異常は全く認められなかった。
【0017】
(実施例2)
上記と同様のガラスブロックの熔着部全周に、弾性材料として幅50mm、厚さ200μmのビニールテープを巻き付けた。次いでこのガラスブロックを用いて、上記と同様にして試験体2を作製した。
【0018】
このようにして作製した試験体2について、それぞれのガラスブロックに作用する圧縮応力を求めたところ、約60kg/cm2 であった。また強制応力負荷試験を行ったところ、試験体2中のガラスブロックには異常は全く認められなかった。
【0019】
(比較例)
側面に弾性材料を装着していないガラスブロックを用い、上記と同様にして試験体3を作製した。
【0020】
このようにして作製した試験体3について、それぞれのガラスブロックに作用する圧縮応力を求めたところ、85〜100kg/cm2 であり、実施例1及び2のそれに比べて高かった。また強制応力負荷試験を行ったところ、試験体3中の殆どのガラスブロックで、内面の熔着部を起点とした割れが発生し、著しく破損していた。
【0021】
なお本実施例では、本発明のガラスブロックをガラスブロックパネルとして用いる場合について説明したが、1個積みの場合にも使用できることは言うまでもない。
【0022】
【発明の効果】
以上説明したように、本発明のガラスブロックは、熔着部全周に亙って装着された弾性材料により、モルタルの乾燥収縮により生じる圧縮応力や地震等により生じる外的応力が分散され、最も弱い熔着部に応力が集中しないため、熔着部分での割れが生じ難い。それゆえ大きな開口部や高層ビルの外壁等に施工させるガラスブロックパネルに使用されるガラスブロックとして、特に好適である。
【図面の簡単な説明】
【図1】本発明のガラスブロックの一実施例を示す拡大断面図である。
【符号の説明】
10 ガラスブロック
11 熔着部
20 ゴムバンド[0001]
[Industrial application fields]
The present invention relates to a glass block, and more particularly to a glass block used for a glass block panel.
[0002]
[Prior art]
A glass block is a glass molded body having a pair of bottomed and uncovered box-shaped shapes, which are fused and integrated with each other at the open edges, and has heat insulation, sound insulation, weather resistance, and translucency. Because it is an excellent building material, it is widely used for building exterior walls, interior materials, and verandas. For example, Patent Documents 1 to 5 disclose glass blocks in which a pair of bottomed and uncovered glass moldings having a box shape are fused and integrated with each other at their open edges.
[0003]
The construction of glass blocks is generally done by stacking glass blocks one by one at the construction site and bonding and fixing each glass block with mortar. To shorten the construction period and simplify the construction process A so-called panel wall construction method has been developed and adopted in which a glass block panel in which a plurality of glass blocks are fixed with mortar in an outer frame is manufactured in advance in a factory and incorporated in an opening of a building. The feature of this method is that it can be used for large openings in buildings and that glass block panels can be supplied with stable quality through factory production.
[0004]
Due to the development of such construction methods, glass blocks have recently been used as large wall openings such as ceilings and outer wall materials for high-rise buildings.
Patent Document 1: Japanese Utility Model Publication No. 63-98352
Patent Document 2: Japanese Utility Model Publication No. 36-32658
Patent Document 3: Japanese Utility Model Publication No. 39-22160
Patent Document 4: Japanese Patent Laid-Open No. 3-146431
Patent Document 5: JP-A-4-175237 [0005]
[Problems to be solved by the invention]
By the way, in the case of the conventional one-ply stack and the panel wall construction method using a glass block panel, a large compressive stress is applied to the side of the constructed glass block due to drying shrinkage of the mortar. As a reaction, a corresponding tensile stress is generated on the inner surface. However, since glass has a weak property against tensile stress, the stress may concentrate on the welded portion having the weakest strength on the inner surface of the block, and cracks may occur. Similarly, when external stress is suddenly applied due to an earthquake or the like, there is a risk of cracking from the welded portion.
[0006]
When a glass block breaks, it is necessary to replace the block in order to prevent design problems and accidents due to falling pieces, etc., but especially large openings such as ceilings constructed using the panel wall method. In the case of the walls of high-rise buildings or high-rise buildings, the replacement of glass blocks is very difficult and dangerous.
[0007]
Under such circumstances, it has become a very important issue to prevent breakage of the glass block.
[0008]
This invention is made | formed in view of the said situation, and is providing the glass block which is hard to produce the crack from a welding part.
[0009]
[Means for Solving the Problems]
The glass block of the present invention is a glass block in which a glass molded body having a pair of bottomed and uncovered box-shaped shapes is welded and integrated with each other at open edges, and the entire circumference of the welded portion of the glass block The elastic material which disperse | distributes the stress to a welding part over this is mounted | worn, It is characterized by the above-mentioned.
[0010]
The elastic material is not particularly limited as long as it can disperse the stress to the welded portion, and for example, a rubber band or a vinyl tape can be used.
[0011]
[Action]
Since the glass block of the present invention is provided with an elastic material over the entire circumference of the welded portion, compressive stress caused by drying of the mortar and external stress suddenly caused by earthquakes are dispersed by the elastic material. , Stress is not concentrated on the welded part.
[0012]
【Example】
Hereinafter, the glass block of this invention is demonstrated based on an Example.
[0013]
Example 1
First, nine glass blocks having a size of 190 × 190 × 95 mm were prepared, in which a pair of glass molded bodies having a bottomed and uncovered box shape were fused and integrated with each other at open ends. Next, as shown in FIG. 1, a rubber band 20 having a width of 50 mm and a thickness of 2 mm was attached as an elastic material to the entire circumference of the welded portion 11 of each glass block 10. In this way, the glass blocks on which the elastic material is mounted are arranged in 3 × 3 rows at intervals in the outer frame, and mortar is filled in the intervals, and the temperature is 20 ° C. and the humidity is 60%. Specimen 1 was produced by curing for one month in an environmental test chamber.
[0014]
The magnitude of the compressive stress acting on each glass block in the specimen 1 produced in this manner was determined using a precision strain tester, and was about 50 kg / cm 2 . The compressive stress is a value determined by the following formula.
[0015]
[Expression 1]
Figure 0003829309
[0016]
Next, after performing a forced stress load test in which the test body 1 is subjected to a total of 10 cycles of -30 ° C. to + 80 ° C. thermal cycle using a large environmental test apparatus, each glass block in the test body is When observed in detail with the naked eye using a halogen light source, no abnormality was observed in the glass block in the specimen 1.
[0017]
(Example 2)
A vinyl tape having a width of 50 mm and a thickness of 200 μm was wound as an elastic material around the entire circumference of the welded portion of the glass block similar to the above. Subsequently, using this glass block, the test body 2 was produced in the same manner as described above.
[0018]
With respect to the specimen 2 thus produced, the compressive stress acting on each glass block was determined and found to be about 60 kg / cm 2 . Further, when a forced stress load test was performed, no abnormality was observed in the glass block in the specimen 2.
[0019]
(Comparative example)
The test body 3 was produced in the same manner as described above using a glass block having no elastic material attached to the side surface.
[0020]
With respect to the specimen 3 thus produced, the compressive stress acting on each glass block was determined, and it was 85 to 100 kg / cm 2 , which was higher than those in Examples 1 and 2. Further, when a forced stress load test was performed, most of the glass blocks in the test body 3 were cracked starting from the welded portion on the inner surface and were significantly damaged.
[0021]
In addition, although the present Example demonstrated the case where the glass block of this invention was used as a glass block panel, it cannot be overemphasized that it can be used also in the case of stacking one piece.
[0022]
【The invention's effect】
As described above, in the glass block of the present invention, the elastic material mounted over the entire circumference of the welded portion disperses the external stress generated by the compressive stress or earthquake caused by the drying shrinkage of the mortar, and the most. Since stress is not concentrated on the weak welded part, cracks are hardly generated at the welded part. Therefore, it is particularly suitable as a glass block used for a glass block panel to be constructed on a large opening or an outer wall of a high-rise building.
[Brief description of the drawings]
FIG. 1 is an enlarged sectional view showing an embodiment of a glass block of the present invention.
[Explanation of symbols]
10 Glass block 11 Welded part 20 Rubber band

Claims (2)

一対の、有底無蓋の箱型形状を有するガラス成形体が、互いの開放端縁で熔着一体化されてなるガラスブロックにおいて、該ガラスブロックの熔着部全周に亙って熔着部への応力を分散させる弾性材料が装着されてなることを特徴とするガラスブロック。Glass molded body having a pair of box-shaped with a bottom no lid is, in a glass block formed by熔着integrated at the open end edge of one another, 熔着portion over the entire circumference熔着portion of said glass block A glass block, which is provided with an elastic material that disperses stress on the glass. 弾性材料が、ゴムバンド又はビニールテープであることを特徴とする請求項1のガラスブロック。2. The glass block according to claim 1, wherein the elastic material is a rubber band or a vinyl tape.
JP17221393A 1993-06-17 1993-06-17 Glass block Expired - Fee Related JP3829309B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17221393A JP3829309B2 (en) 1993-06-17 1993-06-17 Glass block

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17221393A JP3829309B2 (en) 1993-06-17 1993-06-17 Glass block

Publications (2)

Publication Number Publication Date
JPH0710575A JPH0710575A (en) 1995-01-13
JP3829309B2 true JP3829309B2 (en) 2006-10-04

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (1)

Country Link
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Also Published As

Publication number Publication date
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