Method for casting prestressed concrete T beam without shutter vibrator

A vibrator and concrete technology, used in ceramic molding machines, ceramic molding workshops, manufacturing tools, etc., can solve the problems of residents and units, noise pollution, large vibration and noise of attached vibrators, affecting normal work and life, etc. , to achieve the effect of reducing construction investment, shortening construction period, major economic and social benefits

Inactive Publication Date: 2011-02-02
CHINA METALLURGICAL CONSTR ENG GRP
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  • Claims
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Problems solved by technology

[0004] At the same time, due to the large vibration and noise generated by the attached vibrator when it is working, it will cause a lot of noise pollution to the residents and units around the pouring site, affecting their normal work and life, and will be subject to complaints and penalties from relevant management departments

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  • Method for casting prestressed concrete T beam without shutter vibrator
  • Method for casting prestressed concrete T beam without shutter vibrator

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Embodiment Construction

[0022] As shown in Figure 1, 1-T beam body, 2-rib foot, 3-rib plate, 4-corrugated pipe, 5-steel hinge harness;

[0023] The T-beam involved in the present invention includes a T-beam body 1, the T-beam body 1 is in a "T" shape, the lower part of the rib foot 2 is wider, and the width of the upper part of the rib plate 3 is smaller than the width of the rib foot 2; There are bellows 4 arranged through the rib plate 3; according to its structure and the needs of the force, there are usually multiple bellows 4, and four bellows 4 are shown in the figure; inside the bellows 4 are arranged Steel hinge harness5. Certainly, if a concrete top slab approximately parallel to the rib foot 2 is set above the rib 3, the concrete beam of "I" shape has just been formed, and its structure is basically the same or similar to the T-shaped beam structure of the present invention. of.

[0024] The method for pouring prestressed concrete T-shaped girder without attachment type vibrator of the pr...

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Abstract

The invention discloses a method for casting a T-shaped beam of prestressed concrete by a non-attachment vibrator. A casting mold is fabricated and equipped according to the design and construction regulation requirements, and mold plates are fixed; when to cast, a small-sized vibrator is stretched into the concrete and vibrates rib feet and rib plates of the T-shaped beam to consolidate the internal parts; concrete is cast from one end of the T-shaped beam to the other end inclinely one layer by one layer till the beam is completed; steel stranded wires in a corrugated pipe is loosened and checked in intervals; the mold plates are dismounted then after the concrete is cured. The method of the invention, due to that a plurality of attachment-typed vibrators are spared, not only reduces the equipment investment and construction but also dramatically reduces the noise generated from the T-shaped beam casting and also, the vibration impact on the mold plates are greatly reduced and the required strength and rigidness of the steel mold plate are accordingly reduced and even the wooded mold plate covered by iron sheets can be used and meet the strength and rigidness requirements. The invention effectively reduces the casting cost of the T-shaped beam and shortens the construction period.

Description

technical field [0001] The invention relates to a method for pouring prestressed concrete T-shaped beams, in particular to a method for pouring prestressed concrete T-shaped beams without an attached vibrator. Background technique [0002] In the construction of bridges, prefabricated prestressed concrete T-beams are usually poured by using external vibrators attached to shaped steel molds to carry out vibration construction of beam rib feet and rib plates. The structural form of T-beams is general T In the beam structure, there are four bundles of steel strands N1 to N4 inside. The prestressed pipe adopts a metal bellows with a diameter of 80mm. When pouring concrete, the commonly used φ50 plug-in vibrator cannot be inserted into the gap between the bellows, steel bars and formwork, and conventionally only the attached vibrator can be used for concrete pouring of T-beam rib feet and ribs. When pouring, multiple attached vibrators are used to vibrate against the steel formw...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B28B15/00B28B23/04B28B1/093B28B11/24
Inventor 鄢光军何俨邓雄军黄亚萍
Owner CHINA METALLURGICAL CONSTR ENG GRP
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