CN204238951U - Three-dimensional space curved surface combined type top die set device - Google Patents

Abstract

A three-dimensional space curved surface combined top formwork device, a single set of top formwork shares a cross-section cross-beam, and the cross-section cross-beam has multiple vertical supports and cross-section diagonal braces and supports the upper middle two groups of first Horizontal arc-shaped purlins, there are multiple axial diagonal braces on both sides of the cross-section cross-bracing to support the second transverse arc-shaped purlins on both sides above it, the first and second transverse arc-shaped purlins are arranged in arcs along the longitudinal direction, and connected There are multiple longitudinal arc-shaped purlins, and the first and second transverse arc-shaped purlins and the longitudinal arc-shaped purlins are interlaced to form a grid. The device is divided into several groups with the same number as the gantry according to the curvature of the curved section, and is modularized. The components of a single group and between groups are connected by bolts, and the installation positions can be replaced with each other. The structure of the device is simple and symmetrical, easy to process, and good in force. It can also be quickly installed manually when there is insufficient hoisting space and no large hoisting mechanism. It is especially suitable for steel formwork trolleys with complex three-dimensional curved surface structures.

Description

Three-dimensional space curved surface combined top formwork device

technical field

The utility model relates to the field of a concrete lining steel formwork trolley for tunnels, in particular to a three-dimensional space curved surface side top arch type concrete lining steel formwork platform roof formwork device.

Background technique

At present, there are some steel formwork trolleys on the market that are used for tunnel pouring operations on two-dimensional curved surfaces and gentle slopes. The top mold structure of the steel formwork trolley includes a top mold panel and a top mold frame. Hydraulic cylinders on the support system mast complete. This kind of top formwork is generally connected into large components by welding or bolts, and then hoisted to the door frame by a large hoisting mechanism for installation, and is only suitable for steel formwork trolleys with simple curved surface structure and constant cross section. At the same time, the hoisting of the top formwork also requires a large enough hoisting space. For steel formwork trolleys with limited hoisting space, such as complex three-dimensional space curved pipe sections, this type of top formwork cannot be used.

Contents of the invention

The technical problem to be solved by the utility model is to provide a three-dimensional space curved surface steel formwork trolley combined top formwork device. This combined top formwork structure is simple and symmetrical, easy to process, modularized, and can be realized when the hoisting space is insufficient. , without a large hoisting mechanism, it can be installed quickly, and it is equipped with a top form panel that is made according to a theoretical curve rather than a broken line.

A three-dimensional space curved surface combined top formwork device, including a top formwork, multiple sets of top formworks are combined and connected to form a three-dimensional curved surface steel mold trolley top form support frame, a single set of top formwork and a single steel formwork trolley door frame One-to-one correspondence and connection through the lifting cylinder of the top mold. The top mold frame is a three-dimensional space structure. There are multiple vertical braces and cross-section diagonal braces on the beam to support the two sets of first horizontal arc-shaped purlins in the middle of the upper part, and there are multiple axial diagonal braces on both sides of the cross-section cross-bracing beam to support the second horizontal arc on both sides of the beam. Purlins, the first horizontal arc purlins and the second horizontal arc purlins are arranged in circular arcs along the longitudinal direction, and there are multiple longitudinal arc purlins connected between them, the first horizontal arc purlins, the second transverse arc purlins Interlaced with the longitudinal curved purlins to form a grid.

The four standard blocks of the above-mentioned single-group top formwork can be universally interchanged and connected by bolts.

The above-mentioned multiple sets of top formworks can be universally interchanged and connected by bolts.

The utility model has the following beneficial effects:

The utility model provides a three-dimensional space curved surface steel mold trolley combined top formwork device, which is divided into several groups with the same number of door frames according to the curvature of the curved section. The top formwork is a three-dimensional space structure and is modularized. The group components and groups are connected by bolts, and the installation positions can be replaced with each other. The utility model has the advantages of simple and symmetrical structure, convenient processing, and good force bearing, and can also be artificially and quickly installed when the hoisting space is insufficient and there is no large-scale hoisting mechanism. It is especially suitable for steel formwork trolleys with complex three-dimensional curved surface structures.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described:

Fig. 1 is the front view of the utility model and its assembly relationship with the door frame;

Fig. 2 is a side view of the utility model and its assembly relationship with the door frame;

Fig. 3 is A-A sectional view of Fig. 2;

Fig. 4 is the front view of the modular top formwork standard block;

Fig. 5 is a side view of the modular top formwork standard block.

Detailed ways

As shown in Fig. 1-3, a three-dimensional space curved surface combined top formwork device includes a top formwork 1, and multiple sets of top formworks 1 are combined and connected to form a three-dimensional space curved surface steel formwork trolley top form support frame, and a single set of top formwork Frame 1 is in one-to-one correspondence with the door frame 2 of the single steel formwork trolley and is connected by the lifting cylinder 3 of the top mold.

The top formwork 1 is a three-dimensional space structure, a single group is composed of four standard blocks, and shares a group of cross-section cross-beams 4, and there are multiple vertical supports 5 and cross-section diagonal braces 6 on the cross-section cross-beams 4 to support There are two sets of first transverse arc-shaped purlins 7-1 in the middle of the upper part, and there are multiple axial diagonal braces 9 on both sides of the cross-section cross beam 4 to support the second transverse arc-shaped purlins 7-2 on both sides.

The first transverse arc-shaped purlins and the second transverse arc-shaped purlins are arranged in circular arcs along the longitudinal direction, and a plurality of longitudinal arc-shaped purlins 8 are connected between them, and the two are interlaced to form a grid.

It should be noted that, with the structural form of the utility model, a single group of top formwork shares a set of cross-section cross-support beams 4, and the cross-section cross-support beams 4 correspond to the door frame 2 of the steel formwork trolley, so as to ensure that the top load is transmitted to the steel formwork reasonably and symmetrically. On the door frame 2 of the mold platform, the overall stress structure of the top mold frame 1 and the steel formwork trolley is uniform and symmetrical.

As shown in Figure 4-5, the top formwork standard block is composed of vertical support 5, cross-sectional diagonal brace 6, first transverse arc purlin 7-1 and second transverse arc purlin 7-2, longitudinal arc purlin 8 and axial Composed of 9 diagonal braces, the purlins are interlaced to form a grid and matched with the three-dimensional space curved top form panel. The vertical support 5-1 and the cross-section diagonal brace 6-1 respectively start from point B and point C of the cross-section beam 4 and intersect with the purlin 7-1 at point E; the vertical support 5-2 starts from the cross-section beam 4 Point C starts from point C and intersects purlin 7-1 at point F; section diagonal brace 6-2 and vertical support 5-3 respectively start from point C and point D of section cross beam 4 and intersect purlin 7-1 at point G; Axial brace 9-1 starts from point A of cross-section beam 4 and intersects purlin 7-2 at point H; axial brace 9-2 starts from point B of cross-section beam 4 and intersects purlin 7-2 at point I; the axial diagonal brace 9-3 starts from point C of the cross-section beam 4 and intersects with the purlin 7-2 at point J; the axial diagonal brace 9-4 starts from point D of the cross-section beam 4 and intersects with the purlin 7-2 intersects at point K. The points ABCDEFGHIJK are all three-dimensional space surface points.

Preferably, the four standard blocks of the single-set top formwork 1 can be universally interchanged and connected by bolts. The multiple sets of top formworks 1 can be universally interchanged and connected by bolts. The use of bolted joints facilitates the assembly and dismantling of each component of the top formwork, and facilitates modular combination.

The novel installation and removal method is characterized in that it comprises the following steps:

1. Pull the steel wire rope to move the steel mold trolley to the intersection of the curved pipe section 10 and the straight section 11, free up the space directly below the sky anchor 12 on the top of the straight section 11, and place the rail clamp of the trolley gantry 2 It is tightened with the track to ensure that the trolley is stable and does not shift;

2. Select small lifting equipment to assemble the first and second sections of top formwork 1 on the site directly below the sky anchor 12, and use the sky anchor 12 and hoist 13 to lift the assembled two sections of top formwork 1 to The height of the door frame of the trolley is more than 2;

3. Tighten the traction wire rope, move the steel formwork trolley to the right below the sky anchor 12 and align it with the installation position of the first and second section top formwork 1, and use an electric hoist to connect the first and second section top formwork 1 with the door frame of the trolley 2 is fixed, and connects the lifting cylinder 3 of the top mold frame 1 and the trolley door frame 2, so that the top mold frame 1 will not move and topple over during the movement of the door frame 2.

4. Follow the steps 2 and 3 above to complete the installation of the remaining top formwork, and the removal steps are the opposite.

The installation and removal in the hole of the top formwork is realized by the above method.

Claims (2)

1. A three-dimensional space curved surface combined top formwork device, comprising a top formwork (1), characterized in that multiple sets of top formworks (1) are combined and connected to form a three-dimensional space curved surface steel formwork trolley top formwork support frame, a single The group top formwork (1) is in one-to-one correspondence with the single steel formwork platform door frame (2) and is connected through the top mold lifting cylinder (3). The above top formwork (1) is a three-dimensional space structure, and the single set of top formwork The frame is composed of four standard blocks, and a single cross-section beam (4) is shared under a single set of top formwork, and there are multiple vertical supports (5) and cross-section diagonal braces (6) on the cross-section beam (4). There are two groups of first transverse arc-shaped purlins (7-1) in the middle part of the upper part, and there are multiple axial diagonal braces (9) on both sides of the cross-section transverse beam (4) to support the second transverse arc-shaped purlins ( 7-2), the first horizontal arc-shaped purlin and the second horizontal arc-shaped purlin are arranged in an arc along the longitudinal direction, and there are multiple longitudinal arc-shaped purlins (8) connected between them, the first horizontal arc-shaped purlin, the second The two transverse arc-shaped purlins and the longitudinal arc-shaped purlins are interlaced to form a grid, and the multiple sets of top formwork (1) can be universally interchanged and connected by bolts. 2. The three-dimensional space curved surface combined top formwork device according to claim 1, characterized in that: the four standard blocks of the single set top formwork (1) can be universally interchanged and connected by bolts.