CN205474862U - Wet seam template operation platform of portable case roof beam - Google Patents

Abstract

The utility model discloses a mobile box girder wet joint formwork operating platform, which belongs to the bridge superstructure construction device and includes a walking and supporting system, a suspension system and a construction platform; the walking and supporting system includes a frame structure and a structure fixed to the frame structure. The axle mechanism; the suspension system is a hanger structure that can rotate in the direction. One end of the suspension system is rotatably connected to the walking and support system, and the other end is fixed to the construction platform; the construction platform includes a frame and a panel layer laid on the frame. The utility model solves the difficulties that the installation of the box girder wet joint formwork is greatly affected by the wind speed, the effective operation time is short, the formwork installation is difficult, and there are many unstable factors in the harsh environment. It overcomes the defect of no reliable operation platform under the traditional construction and improves the construction Improve ergonomics and reduce safety risks.

Description

A mobile box girder wet joint formwork operating platform

technical field

The utility model belongs to a bridge superstructure construction device, and is especially suitable for the construction of wet joints of box girders in harsh environments.

Background technique

1) Wet joint construction of box girder under traditional harsh environment:

After the prefabricated box girder is installed, the wet joint between the box girder and the box girder needs to be poured on site. The traditional box girder wet joint formwork installation process uses the suspension method to lift the wet joint formwork and install it on the two prefabricated box girders. between. In the marine environment and river environment, there is no wet joint formwork installation platform. Generally, the wet joint formwork is placed on the boat, and the boat is driven directly below the place where the box girder wet joint formwork needs to be installed, and the formwork is hoisted and installed by a winch Fixing completed hanging formwork construction.

2) Limitations of traditional construction techniques

The traditional installation of wet joint formwork in harsh environments such as oceans and rivers uses small boats as a platform for formwork turnover, which cannot provide a stable, safe and reliable operating and construction environment; under the influence of ocean ebb and flow and wind and waves, the effective working hours per day are less; In the marine environment, the perennial wind force is above level 4. The formwork is greatly affected by the wind force when it is hoisted from the ship platform. Large, the difficulty of installation and operation increases, the safety of construction personnel is not easy to be guaranteed, and the construction is seriously affected by the harsh environment. From the construction point of view, the wet joint formwork installation device should have the characteristics of simple structure, convenient construction, high efficiency, and recyclability, and it should be economically reasonable and safe. In traditional construction techniques, there is no device that can make wet The installation of joint formwork is more economical, safer and more efficient in harsh environments. The traditional process of wet joint construction has great limitations in harsh environments.

Utility model content

The purpose of the utility model is to solve the difficulties of the installation of the wet joint formwork of the box girder under the harsh environment, which is greatly affected by the wind speed, the effective operation time is short, the installation of the formwork is difficult, and there are many unstable factors, and it overcomes the problem of no reliable operation platform under the traditional construction defects, improve construction efficiency and reduce safety risks.

The purpose of this utility model is achieved through the following technical solutions:

A mobile box girder wet joint formwork operating platform, including a walking and supporting system, a suspension system and a construction platform; the walking and supporting system includes a frame structure and a wheel shaft mechanism fixed to the frame structure; the suspension system is a hanger capable of rotating directions One end of the suspension system is rotatably connected to the walking and supporting system, and the other end is fixed to the construction platform; the construction platform includes a frame and a panel layer laid on the frame.

As an option, the walking and supporting system, the suspension system and the construction platform constitute a nearly "I" shaped structure as a whole.

As an option, the frame structure of the walking and supporting system includes a frame and multiple horizontal and oblique supports arranged along the length and width of the frame. The frame structure combines two sets of wheel and axle mechanisms as the walking and supporting system.

As an option, the suspension system includes a parallel pressure bearing fixed to the walking and support system, and a load-bearing suspender as a rotating shaft. The top surface of the load-bearing suspender is provided with a steering positioning hole and its positioning pin for the steering positioning of the suspension system. The suspension system and construction Several inclined stay rods are also connected between the platforms.

Alternatively, the face layer of the construction platform is steel mesh, and connecting ropes for connecting box girders are also arranged around the construction platform.

The foregoing main scheme of the utility model and its further selection schemes can be freely combined to form multiple schemes, which are all schemes that can be adopted and claimed in the utility model: as in the utility model, each selection can be combined with other selections arbitrarily, and the present invention After understanding the solution of the present invention, those skilled in the art can understand that there are many combinations according to the prior art and common knowledge, all of which are the technical solutions to be protected by the utility model, and are not exhaustive here.

The working process of the utility model: during construction, the walking and support system is located at the central partition on the top of the box girder, its axle mechanism spans the central partition, and the wheels walk along the central partition on the top of the box girder; The rotation drives the construction platform to rotate to the direction of the bridge (the long side is placed in the direction of the bridge and the bridge) and connects the fixed platform and the box girder with a connecting rope. The wet joint formwork can also be placed directly on the construction platform. The operator can directly carry out multiple wet joint formwork lifting, vertical positioning, etc. on this construction platform. When walking in the same span, the connecting rope can be directly released, and the hoist or other power equipment can be used to pull the walking and supporting system forward to the next construction position. When walking across the span, release the fixing of the connecting rope, rotate the construction platform to the direction of the longitudinal bridge (the long side is placed along the longitudinal direction of the bridge), then walk to the adjacent span, rotate the construction platform to the direction of the transverse bridge and fix it, and proceed to the next process of construction .

Beneficial effects of the utility model: using the patented device for installation and construction of wet joint formwork can effectively avoid the disadvantages of traditional construction methods such as strong winds, large waves, high piers, and short working time, and can better adapt to wet joint formwork in harsh environments The conditions required for installation are better than traditional construction, with better safety and higher work efficiency, without adding more investment (such as ships, etc.), convenient construction, and recyclable use.

Description of drawings

Fig. 1 is the state schematic diagram when the operating platform of the utility model embodiment carries out construction;

Fig. 2 is the A-A view of Fig. 1;

Fig. 3 is a schematic diagram of the state when the operating platform of the embodiment of the present invention walks across the span;

Fig. 4 is the B-B view of Fig. 3;

Fig. 5 is the C-C view of Fig. 3;

In the figure, 1 is the walking and support system, 11 is the frame structure, 12 is the axle mechanism, 2 is the suspension system, 21 is the parallel pressure bearing, 22 is the load-bearing suspender, 23 is the steering positioning hole and its positioning pin, 24 is the oblique Pull rod, 25 is connecting support, 3 is construction platform, 31 is platform frame, 4 is box girder, 5 is connecting rope, 6 is walking wire rope, 7 is central divider.

detailed description

Below in conjunction with specific embodiment and accompanying drawing, the utility model is further described.

Referring to Figures 1 to 5, a mobile box girder wet joint formwork operating platform includes a walking and supporting system 1, a suspension system 2 and a construction platform 3; the walking and supporting system 1 includes a frame structure 11 and a frame structure 11 Fixed axle mechanism 12; suspension system 2 is a hanger structure that can rotate in the direction, one end of suspension system 2 is connected with walking and supporting system 1 in rotation, and the other end is fixed with construction platform 3; construction platform 3 includes platform frame 31 and lays on the platform Panel layer on frame 31.

As an option, as shown in this embodiment, the walking and supporting system 1, the suspension system 2 and the construction platform 3 integrally form a nearly "I"-shaped structure. The frame structure 11 of the walking and supporting system 1 includes a frame and multiple horizontal and oblique supports arranged along the length and width of the frame. The frame structure 11 combines two sets of axle mechanisms 12 as a walking and supporting system. As an example, the frame is composed of I-22a steel, and multiple horizontal and oblique supports are provided in the length and width directions, so that the self-weight and construction load of the entire operation platform are transmitted to the wheel shaft mechanism 12 (the wheels can be ordinary car wheels, and the cross bar between the two wheels The bearings are welded with 36b type steel), and the frame structure 11 combines two sets of axle mechanisms 12 as a walking and supporting system for fixing, moving and turning the operating platform.

The suspension system 2 includes a parallel pressure bearing 21 fixed to the walking and support system 1, and a load-bearing boom 22 as a rotating shaft. The top surface of the load-bearing boom 22 is provided with a steering positioning hole and a positioning pin 23 for steering positioning of the suspension system. Several diagonal stay rods 24 are also connected between the system 2 and the construction platform 3 . As an example, the suspension system 2 is a rotatable direction hanger structure, using a parallel pressure bearing 21 to fix the steel pipe and make it have a rotating function; a seamless steel pipe is used as the load-bearing suspender 22, and the top surface of the seamless steel pipe is provided with a steering positioning hole for The platform turns, and after turning, the positioning pin is inserted to prevent swinging; a plurality of round steels are used as the oblique tie rods 24 of the construction platform above the connection between the suspension system 2 and the construction platform 3, so as to increase the stability of the entire construction platform. The suspension system 2 is connected and fixed to the construction platform 3 through the connecting bracket 25 , and the diagonal stay rod 24 is connected between the connecting bracket 25 and the construction platform 3 .

The panel layer of the construction platform 3 is a reinforced mesh, and the construction platform 3 is also provided with connecting ropes 5 for connecting the box girder 4 around the construction platform 3 . The long side of the construction platform 3 is the distance between the wet joints of the two box girders with the largest horizontal distance, and the short side is the safe passage distance between the left and right double widths of the bridge when the span is over. The size of the platform can be adjusted according to the actual situation on site. The well-shaped frame with long spacing is then densified with Φ50mm steel pipes to form a well-shaped frame with side length and small spacing. The platform frame 31 is covered with steel mesh as the panel layer, and 4 steel wire ropes are used as the connecting rope 5 around the construction platform 3 to fix it on the box girder. 4, the connecting rope 5 is located at the four corners of the construction platform 3, and is connected with the pre-embedded reinforcement of the bridge deck during construction. In addition, steel wire ropes (traveling steel wire ropes 6) are respectively provided on the long sides of the construction platform 3 for walking and supporting system 1 to be connected with walking and supporting system 1 to ensure stability during walking.

During construction, the walking and supporting system 1 is located at the central divider 7 on the top of the box girder, and its axle mechanism 12 spans the central divider 7, and the wheels walk along the central divider 7 on the top of the box girder; they are rotated by the suspension system 2 Drive the construction platform 3 to rotate to the direction of the bridge (the long side is placed in the direction of the bridge and the bridge direction) and connect and fix the construction platform 3 and the box girder 4 with the connecting rope 5. The wet joint formwork can also be placed directly on the construction platform 3, because The construction platform 3 has a long horizontal distance, and operators can directly carry out multiple wet joint formwork lifting, vertical positioning, etc. on the construction platform 3 . When walking in the same span, the fixing of the connecting rope 5 can be directly released, and a winch or other power equipment is used to pull the walking and supporting system 1 to move forward to the next construction position. When walking across the span, remove the fixing of the connecting rope 5, rotate the construction platform 3 to the direction of the longitudinal bridge (the long side is placed along the longitudinal direction of the bridge), then walk to the adjacent span, rotate the construction platform 3 to the direction of the transverse bridge and fix it, and proceed to the next step. One process construction.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present utility model shall be included in this utility model. within the scope of protection of utility models.

Claims (5)

1. a portable box beam wet joint template operating platform, it is characterised in that: include walking and support system, suspension and execute Work platform；Walking and support system include frame structure and the axle mechanism fixing with frame structure；Suspension is to rotate The hanger structure in direction, suspension one end is rotationally connected with walking and support system, and the other end and operation platform are fixed；Construction Platform includes framework and the panel layer being laid on framework.

2. box beam wet joint template operating platform as claimed in claim 1 portable, it is characterised in that: walking and support system, outstanding Extension system and operation platform are monolithically fabricated a nearly I-shaped structure.

3. portable box beam wet joint template operating platform as claimed in claim 1, it is characterised in that: walking and the frame of support system Shelf structure includes framework, and the multiple tracks arranged along the long cross direction of framework laterally, skewed horizontal load, frame structure combines two groups of wheel shafts Mechanism is as walking and support system.

4. portable box beam wet joint template operating platform as claimed in claim 1, it is characterised in that: suspension includes and walking And the parallel pressure bearing that support system is fixing, and the load-bearing suspension rod as rotating shaft, load-bearing suspension rod end face is provided with for hanging system System turns to turning to of location to position hole and alignment pin thereof, is also associated with some braces between suspension and operation platform.

5. portable box beam wet joint template operating platform as claimed in claim 1, it is characterised in that: the panel layer of operation platform is Bar-mat reinforcement, operation platform surrounding is additionally provided with the connection rope for connecting box beam.