Large-volume 0 # block cast-in-place construction bearing platform

Abstract

A large-size 0 # block cast-in-place construction bearing platform comprises steps arranged on the two sides of the upper end of a pier column and a supporting system installed on the steps, the supporting system comprises longitudinal opposite-penetrating profile steel, transverse opposite-penetrating profile steel and a supporting platform, the longitudinal opposite-penetrating profile steel is installed on the step on each side, the transverse opposite-penetrating profile steel is installed on the longitudinal opposite-penetrating profile steel, and the supporting platform is installed on the transverse opposite-penetrating profile steel. The supporting platform is located on the upper side of the transverse opposite-penetrating profile steel, and a cast-in-place area is reserved on the supporting platform at the top of the pier column. The supporting systems are installed on the steps on the two sides of the upper end of the pier column, and therefore erection and installation of the 0 # block cast-in-place construction bearing platform can be achieved without arranging embedded parts.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge construction, in particular to a large-volume 0# block cast-in-place construction load-bearing platform. Background Art

[0002] At present, in the construction of large-volume 0# blocks of continuous bridges, the 0# block load-bearing platform mostly uses ground brackets, embedded steel method or bracket brackets as the main load-bearing components of the platform. When the height of the bridge pier is high, the ground bracket cannot be used due to site restrictions. The installation and removal construction difficulty and safety risks of the embedded steel method and bracket bracket method are greatly increased, resulting in a significant increase in the difficulty of large-volume 0# construction. The embedded steel method and bracket bracket method structure are mostly used for high-pier large-volume 0# blocks. This method has the following three disadvantages: First, it is necessary to set up enough embedded parts, the quality of high-altitude welding is not easy to control, and the construction speed is slow and high; second, there are great safety risks in high-altitude operations; third, the embedded steel plate consumes steel, and has a great impact on the appearance of the pier body, and the later processing is troublesome. Especially for the 0# blocks of continuous beams with a large span of more than 100m, the 0# blocks are large in volume and long in segment length. The construction period of the 0# blocks directly affects the overall goal of the project. Therefore, it is necessary to improve the existing construction load-bearing platform structure. Utility Model Content

[0003] The technical problem to be solved by the utility model is: to solve the problems existing in the above-mentioned background technology, and to provide a large-volume 0# block cast-in-place construction load-bearing platform. By installing a support system on the steps on both sides of the upper end of the pier, the 0# block cast-in-place construction load-bearing platform can be erected and installed without setting embedded parts.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a large-volume 0# block cast-in-place construction load-bearing platform, including steps arranged on both sides of the upper end of the pier and a support system installed on the steps, the support system includes longitudinal through-steel, transverse through-steel and a support platform, longitudinal through-steel is installed on the steps on each side, multiple transverse through-steel are installed on the longitudinal through-steel, the support platform is located on the upper side of the transverse through-steel, and the support platform has a cast-in-place area reserved at the top of the pier.

[0005] At least two unloading devices are installed on the steps on each side of the pier column, and the longitudinal through-shaped steel is installed on the unloading devices.

[0006] The longitudinal through-section steel is leveled by a leveling pad.

[0007] The longitudinal through-section steels on the steps on both sides are connected together by connecting devices.

[0008] The connecting device is a steel wire rope, which binds the longitudinal through-type steels on both sides together.

[0009] The support platform includes a connecting beam arranged on the upper side of the longitudinal through-section steel and a distribution beam located on the upper sides of both ends of the longitudinal through-section steel, and also includes a walking platform installed on the connecting beam and the distribution beam, and guardrails are installed around the walking platform.

[0010] The pier column is a double pier structure, with transverse through-shaped steel arranged between the two piers and outside the piers, and the cast-in-place area is located on the two piers; a partition is arranged on the upper side of the transverse through-shaped steel between the two piers.

[0011] The support platform is provided with an outer formwork plate on the outer sides of the two piers, and an outer formwork truss is provided on the side of the outer formwork plate close to the guardrail, and the outer formwork truss is connected to the support platform to support the outer formwork plate.

[0012] The utility model has the following beneficial effects:

[0013] 1. Steps are reserved on both sides of the pier column of the utility model. Two longitudinal through-shaped steels are placed on the steps on both sides respectively. Multiple transverse through-shaped steels are erected on the two longitudinal through-shaped steels. The transverse through-shaped steels are supported by the two longitudinal through-shaped steels, so that it is convenient to erect a supporting platform on the transverse through-shaped steels, so that the erection and installation of the 0# block cast-in-place construction load-bearing platform can be realized without setting embedded parts.

[0014] 2. At least two unloading devices are installed on the steps on each side of the pier, and the longitudinal through-steel is installed on the unloading device to facilitate the later demoulding and disassembly of the support system.

[0015] 3. The longitudinal cross-section steels on the steps on both sides are connected together through a connecting device to prevent the longitudinal cross-section steels from falling and improve the stability of the load-bearing platform. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0017] Figure 1 This is a schematic diagram of the longitudinal section of block 0#.

[0018] Figure 2 This is a schematic diagram of the cross section of block 0#.

[0019] Figure 3 It is a plan view of the support system of the utility model.

[0020] In the figure: pier 100, step 101,

[0021] Support system 200, unloading device 201, leveling pad 202, longitudinal through-shaped steel 203, transverse through-shaped steel 204, interlayer 205, distribution beam 206, walking platform 207, guardrail 208, outer mold plate 209, outer mold truss 210, connecting beam 211;

[0022] Auxiliary bracket and template 300, 0# block 400. DETAILED DESCRIPTION

[0023] See also Figure 1-3 The large-volume 0# block cast-in-place construction load-bearing platform includes steps 101 arranged on both sides of the upper end of the pier 100 and a support system 200 installed on the steps 101. The support system 200 includes longitudinal through-shaped steel 203, transverse through-shaped steel 204 and a support platform. The longitudinal through-shaped steel 203 is installed on the steps 101 on each side, and multiple transverse through-shaped steels 204 are installed on the longitudinal through-shaped steel 203. The support platform is located on the upper side of the transverse through-shaped steel 204, and the support platform has a cast-in-place area reserved at the top of the pier 100. By installing the support system 200 on the steps 101 on both sides of the upper end of the pier 10, the 0# block cast-in-place construction load-bearing platform can be erected and installed without setting embedded parts.

[0024] See also Figure 1 , 2 The steps 101 on the pier 100 are reserved when the pier is cast, two longitudinal through-shaped steels 203 are placed on the steps 101 on both sides, and multiple transverse through-shaped steels 204 are erected on the two longitudinal through-shaped steels 203. The two longitudinal through-shaped steels 203 support the transverse through-shaped steels 204, so that it is convenient to erect a support platform on the transverse through-shaped steels 204. The support platform is a cast-in-place area reserved at the top of the pier 100, so that the 0# block 400 and the pier 100 are cast-in-place as a whole.

[0025] See also Figure 1 , 2 At least two unloading devices 201 are installed on the steps 101 on each side of the pier 100, and the longitudinal through-section steel 203 is installed on the unloading device 201, which is convenient for later demoulding and disassembly of the support system 200.

[0026] The unloading device 201 is a prior art and is a tool commonly used in bridge use. The height of the unloading device 201 is lowered by loosening the nut.

[0027] Furthermore, in order to ensure that the longitudinal through-section steel 203 is in a horizontal position, the longitudinal through-section steel 203 is leveled by a leveling pad 202 .

[0028] In one embodiment, the unloading device 201 is not installed on the lower side of the longitudinal through-type steel 203 . At this time, the pad is installed on the step 101 , and the longitudinal through-type steel 203 is placed on the leveling pad 202 .

[0029] In another embodiment, the longitudinal through-shaped steel 203 is installed on the unloading device 201 . In this case, the pad is installed on the step 101 , the unloading device 201 is placed on the leveling pad 202 , and the longitudinal through-shaped steel 203 is placed on the unloading device 201 .

[0030] Furthermore, the longitudinal through-type steels 203 on the steps 101 on both sides are connected together by a connecting device to prevent the longitudinal through-type steels 203 from falling, thereby improving the stability of the load-bearing platform.

[0031] See also Figure 2 Since the outer side of the step 101 is suspended, the longitudinal through-type steels 203 on the steps 101 on both sides are connected together by a connecting device, so that the longitudinal through-type steels 203 are only against the pier 100.

[0032] In one implementation, the connection device is a steel wire rope, which binds the longitudinal through-type steels 203 on both sides together.

[0033] In addition to using steel wire ropes, the connecting device can also use screws. The two ends of the screws are respectively passed through the holes on the rear of the longitudinal through-shaped steel 203 on both sides, and then screwed with mounting nuts to fix the longitudinal through-shaped steel 203.

[0034] In one embodiment, see Figure 1-3 The supporting platform includes a connecting beam 211 disposed on the upper side of the longitudinal through-shaped steel 203 and a distribution beam 206 disposed on the upper side of both ends of the longitudinal through-shaped steel 203, and also includes a walking platform 207 installed on the connecting beam 211 and the distribution beam 206. Guardrails 208 are installed around the walking platform 207. The walking platform 207 is made of a mesh plate or a patterned plate. Figure 3 , thereby forming a load-bearing working platform around the pier 100.

[0035] In one embodiment, see Figure 1-3 The pier 100 is a double pier structure, with transverse through-shaped steel 204 arranged between the two piers and outside the piers, and the cast-in-place area is located on the two piers; a partition 205 is arranged on the upper side of the transverse through-shaped steel 204 between the two piers. The partition 205 is composed of a wooden formwork or wooden planks laid on the transverse through-shaped steel 204. Figure 3 The "sun" shaped load-bearing work platform has two cast-in-place areas, namely Figure 3 The blank spaces in the upper and lower parts and on the partition 205 are used for casting 0# blocks 400.

[0036] For further information, see Figure 1 , 2 The supporting platform is installed with an outer formwork 209 on the outside of the two piers, and an outer formwork truss 210 is arranged on the side of the outer formwork 209 close to the guardrail 208. The outer formwork truss 210 is connected to the supporting platform to support the outer formwork 209, thereby forming a template support for the lower edge of the 0# block 400.

[0037] The longitudinal through-shaped steel 203, the transverse through-shaped steel 204, the distribution beam 206, the walking platform 207 and the guardrail 208 can be welded or fixed by bolts or clamps when connected to each other.

[0038] The working principle or use process of the utility model:

[0039] When pouring the pier 100, steps 101 are reserved on both sides of the top of the pier 100. When setting up the load-bearing platform, four unloading devices 201 are placed on each side of the step 101. The unloading devices 201 are leveled by leveling pads 202. Two longitudinal through-shaped steels 203 are placed on the unloading devices 201 on both sides. Figure 1-3 .

[0040] Afterwards, the longitudinal through-shaped steels 203 on both sides are tied together at the position between the two piers by steel wires, so that the longitudinal through-shaped steels 203 are against the pier column 100. Then, a plurality of transverse through-shaped steels 204 are erected on the two longitudinal through-shaped steels 203, and the transverse through-shaped steels 204 are supported by the two longitudinal through-shaped steels 203, so that a support platform can be erected on the transverse through-shaped steels 204.

[0041] After that, the outer mold plate 209, the outer mold truss 210, the auxiliary support and the template 300 can be set up on the support platform to cast the 0# block. A passage is formed around the support platform for people to walk and carry materials.

Claims

1. Large volume 0# block cast-in-place construction load-bearing platform, characterized by: The invention comprises steps (101) arranged on both sides of the upper end of a pier column (100) and a support system (200) installed on the steps (101), wherein the support system (200) comprises longitudinal through-shaped steel (203), transverse through-shaped steel (204) and a support platform, wherein the longitudinal through-shaped steel (203) is installed on the steps (101) on each side, and a plurality of transverse through-shaped steels (204) are installed on the longitudinal through-shaped steel (203), and the support platform is located on the upper side of the transverse through-shaped steel (204), and a cast-in-place area is reserved on the support platform at the top of the pier column (100).

2. The large-volume 0# block cast-in-place construction load-bearing platform according to claim 1 is characterized in that: At least two unloading devices (201) are installed on the steps (101) on each side of the pier (100), and the longitudinal through-shaped steel (203) is installed on the unloading devices (201).

3. The large-volume 0# block cast-in-place construction load-bearing platform according to claim 1 is characterized in that: The longitudinal through-section steel (203) is leveled by means of a leveling pad (202).

4. The large-volume 0# block cast-in-place construction load-bearing platform according to claim 1 is characterized in that: The longitudinal through-section steels (203) located on the steps (101) on both sides are connected together via a connecting device.

5. The large-volume 0# block cast-in-place construction load-bearing platform according to claim 4 is characterized in that: The connection device is a steel wire rope, which binds the longitudinal through-type steels (203) on both sides together.

6. The large-volume 0# block cast-in-place construction load-bearing platform according to claim 1 is characterized in that: The support platform comprises a connecting beam (211) arranged on the upper side of the longitudinal through-section steel (203) and a distribution beam (206) located on the upper sides of both ends of the longitudinal through-section steel (203), and also comprises a walking platform (207) installed on the connecting beam (211) and the distribution beam (206), and guardrails (208) are installed around the walking platform (207).

7. The large-volume 0# block cast-in-place construction load-bearing platform according to any one of claims 1 to 6, characterized in that: The pier column (100) is a double pier structure, the transverse through-shaped steel (204) is arranged between the two piers and outside the piers, and the cast-in-place area is located on the two piers; a partition (205) is arranged on the upper side of the transverse through-shaped steel (204) located between the two piers.

8. The large-volume 0# block cast-in-place construction load-bearing platform according to claim 7 is characterized in that: The support platform is provided with an outer formwork plate (209) on the outer sides of the two piers, and an outer formwork truss (210) is provided on the side of the outer formwork plate (209) close to the guardrail (208), and the outer formwork truss (210) is connected to the support platform, thereby supporting the outer formwork plate (209).

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