Device and method for synchronously penetrating prestressed steel strand and anchoring block
A technology of prestressed steel strands and anchor blocks, which is applied in construction, building structure, and building material processing, etc. It can solve problems affecting tension construction, difficulty in controlling angular orientation, knotting, etc., and facilitates follow-up operations , to avoid the effect of cross-knotting
Active Publication Date: 2015-02-18
CHINA NUCLEAR IND HUAXING CONSTR +1
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Problems solved by technology
When this method has a large number of steel strands in the tunnel, it is easy to cause crossing and knotting of the steel strands, which will affect the post-tensioning construction
[0004] In addition, the installation of the anchor block has always relied on manual operation, which is not only laborious, but also difficult to control the angular orientation. It is easy to cause the orientation of the steel strand hole of the anchor block to be inconsistent with the hole orientation at the top of the tension jack. As a result, the jack is difficult to install and often requires rework , both time-consuming and labor-intensive
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Embodiment 1
[0022] The prestressed steel strand and the anchor block synchronous threading device of this embodiment are as follows: figure 1 , figure 2 As shown, it includes a semi-circular groove-shaped main body 2 with a horizontal axis. One end of the main body is a connecting end connected with a beam threading machine. The connecting end has three closed rings 5 extending from the semi-circular groove-shaped main body at intervals (see Figure 5 ), which are respectively used for fixed connection with the beam threading end of the beam threading machine 8 and binding connection with the beam threading end of the beam threading machine 8 through the binding straps 6 on both sides. The other end of the main body 2 is the installation end connected with the prestressed channel to be threaded. This installation end is the installation plate 1 with four corner installation holes. The specific shape of the installation plate is as follows: image 3 As shown, it has a U-shaped opening,...
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The invention relates to a device and a method for synchronously penetrating a prestressed steel strand and an anchoring block, and belongs to the technical field of building construction of nuclear power stations and other facilities. The device comprises a semi-circular groove-shaped main body with a horizontal axial line, wherein one end of the main body is a connecting end connected with a penetrating machine; the other end of the main body is a mounting end connected with a prestressed hole channel to be penetrated; a semi-circular clamping flipping cover hinged on one side of the semi-circular groove-shaped main body is arranged between the connecting end and the mounting end; a locking structure buckled with the semi-circular groove-shaped main body is arranged on one side, far away from the hinged part, of the clamping flipping cover; and an inner circle formed by buckling the clamping flipping cover and the semi-circular groove-shaped main body is in close fit with the outer circle of the anchoring block. The device can synchronously penetrate the prestressed steel strand and the anchoring block efficiently at one step, can effectively avoid the phenomenon of crossing and knotting of the steel strands even if a large number of steel strands exist, can coordinate with a tensioning jack conveniently because the device is in a fixed state with an adjusted angular position when the anchoring block penetrates, and facilitates the subsequent operation.
Description
technical field [0001] The invention relates to a prestressed steel strand threading device, in particular to a prestressed steel strand and anchor block synchronous threading device, and also relates to a synchronous threading method thereof, which belongs to the technical field of construction of facilities such as nuclear power plants. Background technique [0002] In the later construction of the post-tensioned prestressed system such as the containment shell of the nuclear power station, a group of steel strands as prestressed steel bars need to be inserted into the tunnel with curvature, and a perforation with the number of steel strands that closely matches the number of tunnels must be installed at the end of the tunnel. Anchor blocks to isolate and tension the steel strands from each other. [0003] For a long time, the method of installing the anchor block is to insert a thin-walled steel pipe (commonly known as the threading finger) at the end of the steel strand ...
Claims
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IPC IPC(8): E04G21/12
Inventor 孙帅廖春生郝发领杨刚
Owner CHINA NUCLEAR IND HUAXING CONSTR