RU180193U1 - ADJUSTING THE SUPPORT FROM THE IMI-60 KIT WITH THE POSSIBILITY OF CRANE-FREE INSTALLATION - Google Patents

Abstract

The utility model relates to the field of bridge construction, namely to the construction of foundations of short-term bridges, and can be used in the restoration of railway bridges along the old axis and the construction of collapsible bridge crossings over water barriers. There are known tower structures “Inventory bridge building property (IMI-60)” , which contain racks of joined elements with flange sheets at the ends, located on the racks of the head beams of the upper section of the superstructure. Installing the assembled superstructure from the IMI-60 property The design position for the foundation grill is assumed to be using a floating crane, which unmasks the process of restoration work. The technical result solved by the given set of features is the possibility of craneless installation of the add-on on the foundation grill. The technical result is achieved due to the fact that the head beams and the grill beams are made with the possibility of a connector in the middle. Hinge loops are made in the place of the head beams connector to provide the possibility of separation of the superstructure into two parts and the possibility of subsequent connection of the beam flanges in the middle part. Before installing the superstructure, a floating platform is assembled from IMI-60. On a support stands are installed. A winch and a limiter are installed on the grillage of the pile foundation. A crane from the shore to a floating support is used to install an add-on from the IMI-60 property with disconnected flanges in unfolded form. Blocks of head beams for installation of superstructures are fixed from one edge.When a floating platform with an IMI-60 superstructure is approached to the pile foundation grill on the half of the beam, the winch closest to the floating support is fixed to the end of the winch cable. In this case, the upper and lower flanges are connected. The beam beams for the installation of spans are installed in the design position.

Description

The utility model relates to the field of bridge construction, namely to the construction of foundations of short-term bridges and can be used in the restoration of railway bridges along the old axis and the construction of collapsible bridge crossings through water barriers.

Known tower structures "Inventory bridge-building property (IMI-60)" (1. Departmental building codes BCH 136-78 Instructions for designing auxiliary structures and devices for building bridges. Approved by order of the Main Technical Department of the Ministry of Transport Construction dated January 16, 1978 No. 2 Appendix No. 4), intended for the construction of temporary supports for various purposes (scaffolds, overpasses). A set of tower structures IMI-60 containing racks of joined elements with flange sheets at the ends located on the racks of the beam heads of the upper section of the superstructure.

Installation of the assembled add-on from the IMI-60 property (Fig. 1. Pos. 1) in the design position on the foundation grillage is assumed using a floating crane. In conditions of warfare, the use of a floating crane unmasks the process of reconstruction.

The technical result solved by the given set of features is the possibility of a craneless installation of the superstructure on the foundation grill (Fig. 1. pos. 2).

The technical result is achieved due to the fact that the beams of the heads (Fig. 1. pos. 3) and the beams of the grillage (Fig. 1. pos. 4) are made with the possibility of a connector in the middle part. In the place of the connector of the head beams (Fig. 1. pos. 3), hinge loops (Fig. 2. pos. 13) are made to enable the superstructure to be separated into two parts and the subsequent connection of the beam flanges in the middle part.

The essence of the utility model is illustrated by drawings, which depict

the figure 1 shows the installation procedure of the add-on from the IMI-60 property in the design position:

pos. 1 - initial state of the superstructure of the support;

pos. 2 - grillage of the pile foundation;

pos. 3 - beam beams;

pos. 4 - beam grillages;

pos. 5 - non-self-propelled pontoon from NZhM-56 property;

pos. 6 - self-propelled pontoon of NZhM-56 property;

pos. 7 - stands;

pos. 8 - winch;

pos. 9 - limiter;

pos. 10 - beam blocks for the installation of spans;

pos. 11 - winch cable;

The figure 2 shows the flange joint of the beam head (brand No. 11):

pos. 12 - a flange;

pos. 13 - hinge loop.

The technical result is achieved by separating the beams of the heads (brand No. 11) and the beams of the grillage (brand No. 15) in the middle, with welding of the flanges (Fig. 2. pos. 12). Moreover, the flanges separating the head beams are made with the installation of hinge loops (Fig. 2. pos. 13) in the upper part.

Before installing the add-on, a floating platform is assembled from IMI-60. As an example, a floating platform of two non-self-propelled (Fig. 1. Pos. 5) and one self-propelled pontoon (Fig. 1. Pos. 6) from the NZhM-56 property is shown. On the support stands are installed (Fig. 1. pos. 7). A winch (Fig. 1, pos. 8) and a limiter (Fig. 1, pos. 9) are installed on the grillage of the pile foundation.

A crane from the shore to a floating support establishes a superstructure from the IMI-60 property (Fig. 1. pos. 1) with disconnected flanges in unfolded form. Blocks of beam beams for installing spans (Fig. 1, pos. 10) are fixed from one edge.

When approaching a floating platform with an add-on from IMI-60 to the pile grillage on the half of the beam of the grillage (Fig. 1, pos. 3), closest to the floating support, the end of the winch cable (Fig. 1, pos. 11) is fixed (Fig. 1 , item 7).

When hitting the limiter (Fig. 1, pos. 8) with the use of a winch, the superstructure develops. In this case, the upper and lower flanges are connected. The beam beams for the installation of spans are installed in the design position.

Thus, with the appropriate equipment of the add-on from the IMI-60 property, it is possible to install it without using a floating crane.

Used sources

1. Departmental building codes BCH 136-78 Instructions for the design of auxiliary structures and devices for the construction of bridges. Approved by order of the Main Technical Department of the Ministry of Transport Construction dated January 16, 1978 No. 2. Appendix No. 4.

Claims (1)

The support superstructure from the IMI-60 kit (inventory bridge-building property), containing racks of joined elements with flange sheets at the ends, located on the racks of the head beams of the upper section of the superstructure, characterized in that the head beams and beam beams are made with the possibility of a connector in the middle part with by welding flanges, and the flanges separating the head beams are made with the installation of hinge loops in the upper part, due to which it can be possible to disconnect and connect the beam flanges in the medium days of the part.

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