Static structures (e.g. – buildings) – Laterally related – individually assembled courses – Utilizing discrete dissimilar material tie
Patent
1995-08-29
1998-06-09
Wood, Wynn E.
Static structures (e.g., buildings)
Laterally related, individually assembled courses
Utilizing discrete dissimilar material tie
52564, 52568, 525851, 5274215, 52438, 403268, F16B 1100
Patent
active
057618704
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD OF THE INVENTION
This invention relates to a connecting structure of concrete blocks and a connecting method therefor such as precast concrete (hereinafter called as "PC") member, and the like.
DESCRIPTION OF THE RELATED ART
In recent years, some concrete blocks such as PC member and the like have been frequently used in order to provide a labour saving in work as well as a rationalization in dwellings or buildings, other constructions and civil engineering and the like. And further various connecting structures and connecting methods therefor have been developed in respect to the connection of these concrete blocks.
As disclosed in the gazette of Japanese Utility Model Laid-Open No. Sho 62-159598 (hereinafter called as "(a)") and the gazette of Japanese Utility Model Publication No. Hei 2-23663 (hereinafter called as "(b)"), the connection of the PC members in the prior art has been performed in the step of (1) connecting the PC members from each other with bolts, or (2) welding the fittings fixed to the connecting surfaces of the PC members from each other, or (3) welding the connecting iron bars projected from the connecting surfaces of the PC members to each other, thereafter filling with mortar or adhesive agent and the like between their connected parts.
In addition, as indicated in the gazette of Japanese Utility Model Publication No. Hei 2-7995 (hereinafter called as "(c)"), the connecting structure in which the concrete blocks such as PC member and the like are connecting to each other with adhesive agent by applying the connector is disclosed as "the connecting structure of concrete blocks comprising a main body of concrete structure and a sub-body of concrete structure connected to the main body characterized in that some pin insertion holes of frustum of circular cone having an inner diameter slightly larger than an outer diameter of the insertion pin are formed at the predetermined locations at the connecting surface of the main body, through-pass holes of inverse frustum of circular cone having the same diameter as that of the pin insertion hole and extending coaxially are formed the locations at the connecting surface of the sub-body corresponding to the pin insertion holes, some pins are inserted from the through-pass holes over the main body and the sub-body and at the same time coupling material is filled around the pins." As indicated in the gazette of Japanese Utility Model Laid-Open No. Sho 62-151306 (hereinafter called as "(d)"), the connecting structure is disclosed as "the connecting structure of the PC members characterized in that a pair of PC members having connection grooves opened are arranged at each of the connecting surfaces, connector fittings provided with hollow parts having a plurality of feeding holes for mortar or adhesive agent are fitted into each of the grooves, either mortar or adhesive agent is poured into said hollow parts of the connector fittings and then either said mortar or adhesive agent is filled in the hollow parts and the clearances between the connecting grooves and the connector fittings as well as in the clearances between the connecting surfaces of each of the members".
However, the constitution disclosed in each of the aforesaid gazettes of Nos.(a) and (b) could be constructed such that the concrete structures can be easily connected to each other by inserting or fitting the bolts into the projected portions in the connected surfaces oppositely faced from each other in the concrete structures or by inserting the connector bolts into the coupler fittings, although they had some problems that it was necessary to arrange some concave portions for use in embedding the concrete structures and the coupling fittings or bolts, resulting in that their manufacturing steps became complicated. In addition, they had some problems that the concrete structures were loosened by vibration caused under the fastening arrangement with bolts and nuts. In addition, the prior art had a problem that when the connector fittings or bolts were buried with
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Callo Laura A.
Home Co. Ltd.
Wood Wynn E.
LandOfFree
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