CN215164758U - Auxiliary device convenient to installation of steel truss bridge construction supervisory equipment - Google Patents

Abstract

The utility model discloses an auxiliary device convenient to steel truss bridge construction supervisory equipment installation, auxiliary device installs chord member, lower chord member department on the steel truss bridge, including horizontal shoulder pole roof beam, longeron, construction operation frame and restraint system, construction operation frame is fixed in both ends bottom surface about horizontal shoulder pole roof beam, and the longeron is fixed in both ends top surface about horizontal shoulder pole roof beam, and horizontal shoulder pole roof beam middle part bottom surface closely laminates with the upper and lower chord member top surface of steel truss beam, and the restraint system is through applying the nut of twisting and will restrain the pad roof beam, finish rolling screw-thread steel, restraint crossbeam, horizontal shoulder pole roof beam and steel truss bridge upper chord member, lower chord member and connect into whole. The utility model discloses in the device can regard as steel truss bridge construction monitoring work, the auxiliary device of work such as equipment fixing, maintenance has overcome the not enough difficulty of supervisory equipment installation, maintenance operation face, has guaranteed the precision and the flexibility of construction supervisory equipment installation, and the cost of manufacture is low, has saved a large amount of materials and labour cost.

Description

Auxiliary device convenient to installation of steel truss bridge construction supervisory equipment

Technical Field

The utility model relates to an auxiliary device convenient to steel truss bridge construction supervisory equipment installation belongs to steel truss bridge construction technique, monitoring field, work such as concretely relates to steel truss bridge construction supervisory equipment installation, maintenance.

Background

The steel truss girder bridge has the advantages of good stress, light weight, high bending and shearing torsion resistance rigidity, strong adaptability, mature installation and erection technology, easy quality control and the like, and more continuous girder steel truss girders are applied to practical engineering. With the development of high-speed rail construction, high-speed trains have higher requirements on the comfort and the safety of bridges, and the bridge line shape is a key factor influencing the comfort and the safety. In order to ensure that the line is smooth when the train passes through the bridge and passengers feel comfortable, the bridge deck line shape of the large-span steel truss is ensured to be consistent with the line design line shape as much as possible, and the running quality of the line is improved. The continuous steel truss girder is a structural system with multiple times of hyperstatic, and the bridge has multiple times of system conversion, complex stress state and stronger space effect. The line shape and stress of the bridge steel truss girder are directly influenced by the construction method, material performance, construction procedure, environment temperature field and the like, the bridge forming line shape is difficult to reach the designed ideal line shape, and the construction monitoring difficulty is large.

The design and construction relevance of the large-span steel truss girder is strong, objective difference exists between actual construction parameters and ideal values of the design parameters, detailed analysis and experimental verification must be carried out on each construction stage for the objective difference, monitoring equipment such as strain gauges and prisms are installed on a construction site, necessary data are collected, after parameter identification, theoretical values are corrected and calculated, construction practice is guided, the designed construction process or the adjusted construction process is guaranteed to be accurately achieved, and design requirements are met. In the actual construction monitoring process, the construction operation space of the steel truss girder rod is limited, and the installation and the positioning of monitoring equipment are difficult. At the later stage bridge health monitoring stage, the supervisory equipment change also faces same problem, through modes such as lift truck, crane, inefficiency, the potential safety hazard is big, a large amount of resources have been wasted.

Disclosure of Invention

To the above-mentioned problem that the existing technique of steel longeron supervisory equipment installation exists, the utility model aims at providing an auxiliary device convenient to steel longeron bridge construction supervisory equipment installation, and then improve work efficiency.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the auxiliary device for installing the steel truss bridge construction monitoring equipment is installed at the upper chord and the lower chord of the steel truss bridge and comprises a transverse carrying pole beam, a longitudinal beam, a construction operation frame and a constraint system, wherein the construction operation frame is fixed on the bottom surfaces of the left end and the right end of the transverse carrying pole beam, the longitudinal beam is fixed on the top surfaces of the left end and the right end of the transverse carrying pole beam, the middle bottom surface of the transverse carrying pole beam is tightly attached to the top surfaces of the upper chord and the lower chord of the steel truss beam, the constraint system is composed of a constraint pad beam, finish-rolling deformed steel bars and a constraint cross beam, and the constraint system is connected with the transverse carrying pole beam into a whole through the constraint pad beam, the finish-rolling deformed steel bars and the constraint cross beam.

Preferably, the transverse carrying pole beam is made of double-spliced channel steel, and the upper top surface and the lower top surface are welded into a whole through stiffening steel plates. And the anti-skid rubber pads are arranged at the positions contacted with the upper chord and the lower chord of the steel truss girder, so that the middle bottom surface of the transverse carrying pole girder is tightly attached to the top surfaces of the upper chord and the lower chord of the steel truss girder.

Preferably, the longitudinal beam is composed of 4 channel steels, the bottom surface of the longitudinal beam is welded with the top surface of the transverse carrying pole beam, the distance is consistent with the width of the construction operation frame, and the width of the longitudinal beam is determined according to construction requirements.

Preferably, the construction operation frame consists of 12 vertical rods, 32 cross braces, 10 bottom cross beams and 8 steel mesh sheets. 6 montant top surfaces and the horizontal shoulder pole roof beam about both ends bottom surface welding, 16 studdles respectively with the montant side welding, 5 root base crossbeams with 6 montant bottom surfaces welding, 4 reinforcing bar net pieces and 5 root base crossbeam top surfaces welding constitute a set of frame, two sets of construction operation frames about all member constitution. The sizes of all components of the construction operation frame are determined according to actual engineering requirements.

Preferably, the constraint system comprises a constraint system consisting of 4 finish-rolled deformed steel bars, 16 matched nuts, 4 double-spliced channel steel upper pad beams, 4 double-spliced channel steel lower pad beams and 2 double-spliced channel steel constraint beams. The upper and lower backing beams and the restraint beam are made of double-spliced channel steel, and the upper and lower top surfaces are welded into a whole through stiffening steel plates. And anti-skid rubber pads are arranged at the contact positions of the restraint beams and the upper and lower chord rods of the steel truss girder. The rolled deformed steel bar vertically penetrates through the pad beam and the restraint beam; the upper bolster beam is placed on the top surface of the transverse carrying pole beam, the top surface of the restraint beam is tightly attached to the bottom surface of the upper chord or the bottom chord, the top surface of the lower bolster beam is tightly attached to the bottom surface of the restraint beam, and the finish-rolled deformed steel bar, the restraint beam, the transverse carrying pole beam and the top surface and the bottom surface of the upper chord and the bottom chord of the steel truss beam are connected into a whole through screwing nuts, so that the installation device is prevented from inclining. The stress of the finish rolling screw-thread steel nut is large, and the stress area is increased by additionally arranging the pad beam at the finish rolling screw-thread steel nut, so that the structure safety is ensured. The sizes of all components of the constraint system are determined according to actual engineering requirements.

The utility model has the advantages of: the utility model provides an auxiliary device convenient to steel longeron bridge construction supervisory equipment installation provides feasible appurtenance for steel longeron construction supervisory equipment installation. The utility model discloses simple structure, safe and reliable, simple to operate, the flexibility is strong, can greatly improve the efficiency of construction, has practiced thrift a large amount of materials and labour cost, has extremely strong engineering application and worth.

Drawings

FIG. 1 is a cross-sectional view of an auxiliary device for facilitating installation of a monitoring device for steel truss bridge construction;

FIG. 2 is a longitudinal cross-sectional view of an auxiliary device for facilitating installation of a monitoring device for steel truss bridge construction;

FIG. 3 is a longitudinal cross-sectional view of an auxiliary assembly construction work frame for facilitating installation of a steel truss bridge construction monitoring device;

FIG. 4 is a cross-sectional view of a construction work frame of an auxiliary device for facilitating installation of a monitoring apparatus for steel girder bridge construction;

FIG. 5 is a top plan view illustration of an auxiliary assembly construction work frame for facilitating installation of a steel truss bridge construction monitoring device;

FIG. 6 is a longitudinal cross-sectional view of an auxiliary device restraint system for facilitating installation of a monitoring device for steel truss bridge construction;

FIG. 7 is a schematic cross-sectional view of an auxiliary device restraint system for facilitating installation of a monitoring device for steel truss bridge construction;

FIG. 8 is an installation illustration in actual engineering for providing an auxiliary device for facilitating installation of the monitoring equipment for steel truss bridge construction;

the labeling matters in the figures are as follows: 1. a stringer; 2. a transverse carrying pole beam; 3. constructing an operation frame; 4. a constraint system; 3-1, vertical rods; 3-2, a cross brace; 3-3, a bottom beam; 3-4, reinforcing steel bar meshes; 4-1, finish rolling the deformed steel bar; 4-2, putting a pad beam; 4-3, restraining the beam; 4-4, a lower bolster; 4-5, a nut; 5. a steel truss upper chord; 6. steel truss girder lower chord.

Detailed Description

The technical solution of the present invention will be further clearly and completely described below with reference to the accompanying drawings and examples. DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION

As shown in fig. 1 and 2, the utility model provides an auxiliary device convenient to installation of steel truss girder bridge construction supervisory equipment, including longeron 1, horizontal carrying pole roof beam 2, construction operation frame 3, restraint system 4, both ends top surface welding about longeron 1 and horizontal carrying pole roof beam 2, steel truss girder bridge upper chord 5 or lower chord 6 top surface are arranged in to horizontal carrying pole roof beam 2 middle part bottom surface, construction operation frame 3 controls both ends bottom surface welding with horizontal carrying pole roof beam 2, restraint system 4 is connected with horizontal carrying pole roof beam 2 top surface, upper chord 5 or lower chord 6 bottom surface restraint.

As shown in fig. 3, 4 and 5, the construction operation frame 3 comprises vertical rods 3-1, cross rods 3-2, bottom cross beams 3-3 and reinforcing mesh sheets 3-4, wherein the frame structure system is formed by welding 4 parts of the vertical rods 3-1, the cross rods 3-3 and the reinforcing mesh sheets 3-4, and all the rod pieces are connected in a welding mode.

As shown in FIGS. 6 and 7, the restraint system 4 comprises finish-rolled deformed steel bars 4-1, an upper pad beam 4-2, a restraint beam 4-3, a lower pad beam 4-4 and nuts 4-5, and 5 parts of the restraint system are connected with one another through the finish-rolled deformed steel bars 4-1 to form the restraint system.

As shown in figure 8, the device is installed at the upper chord member and the lower chord member of the steel truss girder, and the longitudinal girder is formed by welding a 16cm channel steel and a double-spliced 25cm channel steel transverse carrying pole beam top surface into a whole. The middle bottom surface of the double-spliced 25cm channel steel transverse carrying pole beam is tightly attached to the top surfaces of the upper chord rod and the lower chord rod of the steel truss beam, and the bottom surfaces of the left end and the right end are welded with the construction operation frame. The construction operation frame is characterized in that 6 16cm equilateral angle steel vertical rod top surfaces are welded with the bottom surfaces of the left end and the right end of a transverse carrying pole beam, 16 10cm equilateral angle steel cross braces are respectively welded with the side surfaces of the vertical rods, 5 14cm equilateral angle steel bottom cross beams are welded with the bottom surfaces of the 6 vertical rods, 4 pieces of 10cm steel bar net pieces are welded with the top surfaces of the 5 bottom cross beams to form a group of frames, the left and right groups of construction operation frames are formed by all rod pieces, the construction operation frame is perpendicular to the transverse carrying pole beam, and the inclination is prevented. The restraint system consists of phi 40mm finish rolling deformed steel bars, matched nuts, a double-spliced 25cm channel steel pad beam and a double-spliced 25cm channel steel restraint cross beam. The finish-rolled deformed steel bar vertically penetrates through the pad beam and the restraint beam; the upper bolster beam is placed on the top surface of the transverse carrying pole beam, the top surface of the restraint beam is tightly attached to the bottom surface of the upper chord or the bottom chord, the top surface of the lower bolster beam is tightly attached to the bottom surface of the restraint beam, the finish-rolled deformed steel bar, the restraint beam, the transverse carrying pole beam and the top surface and the bottom surface of the upper chord and the lower chord of the steel truss beam are connected into a whole through screwing nuts, the anti-skid rubber pads are installed at the contact positions of the upper chord and the lower chord of the steel truss beam, the finish-rolled deformed steel bar is kept vertical, and double nuts are installed to prevent the installation device from inclining.

In the construction process, the installation device needs to be hoisted to the upper chord member and the lower chord member of the steel truss girder, the restraint system is installed, and after the restraint system is installed firmly, personnel can enter the construction operation frame for operation.

The present invention is not limited to the above preferred embodiments, and other various forms of products that can be obtained by anyone under the development of the present invention, and easily conceivable variations or replacements, the same or similar technical solutions as the present application, are within the scope of the present invention.

Claims (3)

1. The utility model provides an auxiliary device convenient to installation of steel truss bridge construction supervisory equipment which characterized in that: the steel truss girder bridge upper chord member (5) or lower chord member (6) is installed at the position of the steel truss girder bridge upper chord member (5) or the lower chord member (6), and the steel truss girder bridge upper chord member (5) or the lower chord member (6) is installed on the steel truss girder bridge upper chord member (5) or the lower chord member (6) through the restraint system (4), the top surfaces of the left end and the right end of the longitudinal beam (1) and the transverse chord member (2) are welded, the bottom surface of the middle part of the transverse chord member (2) is arranged on the top surface of the steel truss girder bridge upper chord member (5) or the lower chord member (6) and the construction operation frame (3) and the transverse chord member (2) are welded on the bottom surfaces of the left end and the right end of the transverse chord member (2), and the restraint system (4) is connected with the top surface of the transverse chord member (2), the upper chord member (5) or the lower chord member (6) in a restraining manner.

2. The auxiliary device for facilitating the installation of the monitoring equipment for the construction of the steel truss girder bridge as claimed in claim 1, wherein: the construction operation frame (3) comprises vertical rods (3-1), cross braces (3-2), bottom cross beams (3-3) and reinforcing steel bar net pieces (3-4), the top surfaces of the vertical rods (3-1) and the bottom surfaces of the left end and the right end of the transverse carrying pole beam (2) are welded, the cross braces (3-2) are welded to the side surfaces of the vertical rods (3-1), the bottom cross beams (3-3) are welded to the bottom surfaces of the vertical rods (3-1), and the reinforcing steel bar net pieces (3-4) are welded to the top surfaces of the bottom cross beams (3-3).

3. The auxiliary device for facilitating the installation of the monitoring equipment for the construction of the steel truss girder bridge as claimed in claim 1, wherein: the restraint system (4) comprises finish-rolled deformed steel bars (4-1), an upper cushion beam (4-2), a restraint beam (4-3), a lower cushion beam (4-4) and nuts (4-5), the finish-rolled deformed steel bars (4-1) vertically penetrate through the upper cushion beam (4-2), the restraint beam (4-3) and the lower cushion beam (4-4), the upper cushion beam (4-2) is placed on the top surface of the transverse carrying pole beam (2), the top surface of the restraint beam (4-3) is tightly attached to the bottom surface of the upper chord (5) or the bottom chord (6), the top surface of the lower cushion beam (4-4) is tightly attached to the bottom surface of the restraint beam (4-3), and the nuts (4-5) are used for screwing the finish-rolled deformed steel bars (4-1), the upper cushion beam (4-2), the restraint beam (4-3), The lower cushion beam (4-4) and the upper chord (5) or the lower chord (6) are connected to form a constraint system.

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