Detachable steel core die and method for manufacturing prestress concrete hollow beam

A technology of steel core and the other side, applied in the direction of joists, girders, trusses, etc., can solve the problems of not disclosing the specific structure of the abrasive tool, inconvenient disassembly of the mold, etc., to improve the fullness and compactness, and improve durability. Effect

Inactive Publication Date: 2016-12-07
GUOQIANG CONSTR GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In the above-mentioned patent documents, molds are used in the manufacture of reinforced concrete hollow beams, but the specific structure of the mold is not disclosed, and the existing molds have the problem of inconvenient disassembly during use

Method used

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  • Detachable steel core die and method for manufacturing prestress concrete hollow beam
  • Detachable steel core die and method for manufacturing prestress concrete hollow beam

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Experimental program
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Effect test

Embodiment 1

[0037] Such as figure 1 and figure 2 As shown, the detachable steel mandrel includes two support assemblies 100, and each support assembly 100 includes a strip-shaped petal body 1 and a strip-shaped petal body 2 2, and one side of the petal body 1 is connected to the petal body 1. One side of the body two 2 is hinged by a hinge 14, and the other side of the petal body one 1 and the other side of the petal body two 2 respectively have a plate body one 3 and a plate body two 4 bent in the same direction. Body one 3 and plate body two 4 are arranged oppositely, and plate body one 3 is hinged with a number of connecting arms one 5 facing plate body two 4 near the outer edge, and plate body two 4 is hinged near the outer edge with several connecting arms one 5 corresponding to each other. Connecting arm two 6, plate body one 3 and plate body two 4 are also provided with pull bar 7 along the length direction of petal body one 1 and petal body two 2, the ends of connecting arm one ...

Embodiment 2

[0042] This embodiment is a method for making a prestressed concrete hollow beam using the detachable steel mandrel in Embodiment 1. The method includes the following steps:

[0043] a. Install the steel frame: Build the steel frame on the flat ground, the steel frame is in the shape of a long strip, and the cross section of the steel frame is in the shape of a "mouth";

[0044] b. Install the peripheral board: fix the peripheral board on both sides of the steel frame, and the peripheral board is attached to the outer surface of the steel frame;

[0045] c. Install the corrugated pipe: fix the corrugated pipe in the steel frame, the bellows are arranged along the length direction of the steel frame, the bellows are distributed on both sides of the steel frame, and the two ends of the bellows protrude from the end of the steel frame;

[0046] d. Install the anchor seat: fix the anchor seat at both ends of the steel frame, position and fix the anchor seat with the positioning st...

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Abstract

The invention provides a detachable steel core die, and belongs to the technical field of building engineering. The technical problems that a steel core die is not convenient to detach when an existing hollow beam is manufactured. The steel core die comprises two supporting assemblies, each supporting assembly comprises a first petal body and a second petal body which are both in a long strip shape; one side of the first petal body is hinged to one side of the second petal body; and the other side of the first petal body and the other side of the second petal body are provided with a first plate body and a second plate body which are formed by being bent in the same direction correspondingly. A plurality of first connecting arms facing towards the second plate body are hinged to the edge, close to the outer side, of the first plate body; and a plurality of second connecting arms in one-to-one correspondence with the first connecting arms are hinged to the edge, close to the outer side, of the second plate body. A pull rod in the length direction of the first petal body and the second petal body is further arranged between the first plate body and the second plate body, and the ends of the first connecting arms and the ends of the second connecting arms are both hinged to the pull rod. The invention further provides a method for manufacturing a prestress concrete hollow beam by the detachable steel core die. The steel core die is convenient and fast to detach.

Description

technical field [0001] The invention belongs to the technical field of construction engineering and relates to a detachable steel mandrel and a method for making a prestressed concrete hollow beam by using the detachable steel mandrel. Background technique [0002] Concrete hollow beams are commonly used building materials in construction projects. Prefabricating concrete hollow beams on an independent site and then erecting them can speed up the progress of the project and save the construction period. When manufacturing the concrete hollow beam, the hollow structure is manufactured through the mold, which can reduce its own weight and save costs while ensuring strength. [0003] my country's patent (publication number: CN101701484A, publication date: 2010-05-05) discloses a reinforced concrete hollow beam with a length of 7-8m, a width of 0.2m, and a height of 0.55m. Four holes of φ100mm are arranged in parallel in the beam. The distance from the center of the hole is 125m...

Claims

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Application Information

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IPC IPC(8): B28B7/30B28B1/00B28B1/14B28B23/06E04C3/26
CPCB28B7/30B28B1/00B28B1/14B28B23/06E04C3/26
Inventor 董荣贵
Owner GUOQIANG CONSTR GRP
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