Stair three-step bottom die reinforcing device, reinforcing supporting system and construction technology

A reinforcement device and support system technology, applied in the field preparation of formwork/formwork/work frame, construction components, construction, etc., can solve the problem that the rigidity of the formwork cannot meet the construction requirements, the requirements for the stair support system are high, and cleaning is difficult. Large and other problems, to achieve the effect of easy assembly and disassembly, simple structure, and reduced repair costs

Pending Publication Date: 2020-06-23
CSCEC STRAIT CONSTR & DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the three-step formwork support device on the stairs, due to the large movement of personnel during the construction of the upper floor, the requirements for the support system of the stairs are high, the formwork rigidity cannot meet the construction requirements, the bottom form and the concrete surface are separated to form gaps, and construction waste is easy. If it is stuffed into the gap, it will be more difficult to clean up, and it is easy to cause wrong platform during pouring

Method used

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  • Stair three-step bottom die reinforcing device, reinforcing supporting system and construction technology
  • Stair three-step bottom die reinforcing device, reinforcing supporting system and construction technology
  • Stair three-step bottom die reinforcing device, reinforcing supporting system and construction technology

Examples

Experimental program
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Effect test

Embodiment 1

[0036] see Figure 1 to Figure 6 , a three-step bottom form reinforcement device 10 on stairs, including steel plates 51, bolts 52 and nuts 53.

[0037] The steel plate 51 has more than two through holes 511, and the centers of all the through holes 511 are located on the same straight line L1, and the straight line L1 is located on the side of the midline L0 of the steel plate 51. L1 and L0 are represented by dotted lines in the figure. The distance h1 from the center of the through hole 511 at both ends of the straight line L1 to the edge of the steel plate 51 along the direction of the straight line L1 is equal and greater than or equal to 80 mm and less than or equal to 150 mm. The distance h2 between the centers of two adjacent through holes 511 is greater than or equal to 2h1, preferably equal to 2h1. The distance d1 from the center of the through hole 511 to the edge of the steel plate 51 on one side along the direction perpendicular to the straight line L1 is smaller ...

Embodiment 2

[0044] see figure 1 , a three-step reinforced support system on stairs, including a bottom support 1, a main flute 2 and a secondary flute 3, a bottom form reinforcement device 10 and a stair formwork 4.

[0045] The main flute 2 is parallel to the length direction of the steps of the stairs and is horizontally arranged on the top of the vertical rod 11 of the bottom support 1, and the secondary flute 3 is parallel to the bottom surface of the stairs and supported obliquely on the main flute 2 in a direction perpendicular to the main flute 2. The secondary flute 3 is provided with a groove 31 for accommodating the reinforcing device 10 of the bottom form.

[0046] The structure of the bottom form reinforcement device 10 is the same as that of the three-step bottom form reinforcement device 10 on the stairs in the first embodiment. The steel plate 51 of the bottom form reinforcing device 10 is accommodated in the groove 31 .

[0047] The stair template 4 is supported on the s...

Embodiment 3

[0049] A construction technique for reinforcing a support system in three steps on a staircase, comprising the following steps:

[0050] Install the bottom support 1, install the main flute 2 on the top of the vertical pole 11 of the bottom support 1, install the back flute on the main flute 2 with the side with the groove 31 facing up;

[0051] Place the steel plate 51 in the groove 31 of the back flute, the direction of the straight line L1 formed by the connection of the through holes 511 of the steel plate 51 is placed parallel to the main flute 2, and the short side from the through hole 511 of the steel plate 51 to the edge is placed below That is, the short side from the through hole 511 to the edge of the steel plate 51 perpendicular to the straight line L1 direction is located on the inside of the three steps on the stairs, the long side is located on the outside of the three steps on the stairs, and the through hole 511 is located on the inside of the three steps on t...

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Abstract

The invention relates to a stair three-step bottom die reinforcing device, a reinforcing supporting system and a construction technology. The stair three-step bottom die reinforcing device comprises asteel plate, bolts and nuts. The steel plate is provided with two or more through holes, and the centers of all the through holes are located on the same straight line L1. The distances h1 from the centers of the through holes in the two ends of the straight line L1 to the edge of the steel plate in the direction of the straight line L1 are equal, and h1 is larger than or equal to 80 mm and smaller than or equal to 150 mm. The distance d1 from the center of each through hole to one edge of the steel plate in the direction perpendicular to the straight line L1 is smaller than the distance d2 from the center of each through hole to the other edge of the steel plate, d1 is larger than or equal to 150 mm and smaller than or equal to 200 mm, d2 is equal to d1 plus c, c is the distance from thecenter of each through hole to the boundary of stair three-step cast concrete in the direction perpendicular to the straight line L1, and c is larger than or equal to 80 mm and smaller than or equalto 120 mm. The steel plate is located under a bottom die and is attached to the bottom die, the bolts penetrate through the through holes in the steel plate and the bottom die to extend to the upper portion of the bottom die to be in threaded connection with the nuts, and the nuts wrap the portions, extending to the upper portion of the bottom die, of the bolts. The stair three-step bottom die reinforcing device enhances the formwork supporting rigidity, improves the stair three-step concrete forming quality and prolongs the service period of formwork.

Description

technical field [0001] The invention relates to the technical field of stair construction joint templates for building engineering construction, in particular to a three-step bottom form reinforcement device for stairs, a reinforcement support system and a construction process. Background technique [0002] The staircase is an integral cast-in-place structure. When it cannot be poured in one time, a construction joint is formed on the joint surface of the first poured concrete and the second poured concrete. The construction joints should be left in the parts of the structure that are subject to less shear force and are convenient for construction. Since the height of the middle floors of multi-storey houses is mostly 2.9 meters, most of the stairs are two runs, so the height of one run is 1.45 meters, the height of one step is 0.15 meters, and the height of three steps is 0.45 meters, which is about 1.45 meters in total. 1 / 3 of. For the slab stairs made of stairs and plat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04G13/06
CPCE04G13/062
Inventor 陈励沛陈永雁李俊峰程艺君陈凯远
Owner CSCEC STRAIT CONSTR & DEV
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