A fixing device and installation method for a steel edge waterstop

By forming an inverted U-shaped structure using components such as U-shaped bars, L-shaped bars, and limiting bars, and combining this with square timber to fix the steel edge waterstop, the problems of the steel edge waterstop being unstable, easily twisted, and shifting are solved, thus improving the waterproof performance of the construction joints in subway stations.

CN116005724BActive Publication Date: 2026-04-21CCCC THIRD HARBOR ENGINEERING CO LTD +1
View PDF 2 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CCCC THIRD HARBOR ENGINEERING CO LTD
Filing Date
2022-12-12
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

The existing methods for fixing steel-edged waterstops are limited, resulting in insecure fixing, easy twisting, displacement and damage, which cannot guarantee the waterproof performance of subway stations.

Method used

The U-shaped and L-shaped bars are welded together to form an inverted convex shape. Combined with limiting bars and square timber to fix the steel edge waterstop, it ensures that its position in the construction joint remains fixed and is completely poured into it after the concrete has solidified.

Benefits of technology

This ensures the stable fixing of the steel-edged waterstop, preventing twisting and displacement, thus guaranteeing the waterproofing effect of the construction joints in the subway station and improving the project quality.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN116005724B_ABST
    Figure CN116005724B_ABST
Patent Text Reader

Abstract

The application discloses a fixing device and mounting method for a steel edge waterstop, wherein the fixing device comprises a steel edge waterstop, a U-shaped rib, an L-shaped rib, a limiting steel bar, a square wood and an inner and outer tie bar; the U-shaped rib and the two L-shaped ribs are welded to form an inverted chevron-shaped whole with an upper opening; the steel edge waterstop is placed in the inverted chevron-shaped whole; the inverted chevron-shaped whole is arranged between the inner and outer tie bars; the two square woods are placed side by side on the upper opening of the L-shaped rib along the construction joint direction, and clamp and fix the upper part of the steel edge waterstop; and the limiting steel bar is arranged on both sides of the lower part of the steel edge waterstop along the construction joint direction, so that the position of the steel edge waterstop is fixed, the steel edge waterstop is kept straight, and the fixing device is an effective means for fixing the steel edge waterstop.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This invention belongs to the field of construction joint waterproofing technology for building stations, specifically relating to a fixing device and installation method for steel edge waterstops. Background Technology

[0002] Currently, subways have become a major mode of transportation for people, making urban underground transportation construction a key focus in my country's development in recent years. Subway stations are a core component of urban rail transit construction, and their construction quality directly impacts people's daily lives. Waterproofing is a crucial control point in subway station construction; therefore, special attention must be paid to using targeted construction methods and ensuring thorough quality supervision to effectively enhance the station's waterproofing capabilities and guarantee the overall project quality.

[0003] Steel-edged waterstops serve as an effective waterproofing measure for construction joints in side walls, playing a crucial role in waterproofing these areas. However, current methods for fixing steel-edged waterstops remain relatively limited, and existing methods often fail to guarantee effective fixation. Insecure fixing, twisting, displacement, and damage are common problems encountered during construction, resulting in poor water-stopping performance and compromising the construction quality of subway stations. Therefore, there is a need to develop a steel-edged waterstop fixing device suitable for subway stations. Summary of the Invention

[0004] To solve the above problems, the present invention discloses a fixing device and installation method for steel edge waterstops. By fixing the upper and lower steel edges of the steel edge waterstop, the steel edge waterstop is ensured to be straight and positioned in the middle of the construction joint, preventing it from twisting, shifting, or being damaged.

[0005] To achieve the above objectives, the technical solution of the present invention is as follows:

[0006] A fixing device for a steel-edged waterstop includes a steel-edged waterstop, a U-shaped bar, an L-shaped bar, a limiting bar, square timber, and inner and outer tie bars. The U-shaped bar is welded to two L-shaped bars to form an inverted U-shaped whole with an opening at the top. The steel-edged waterstop is placed inside the inverted U-shaped whole, which is positioned between the inner and outer tie bars. Two square timbers are placed side by side along the construction joint direction at the opening above the L-shaped bar, clamping and fixing the upper part of the steel-edged waterstop. The limiting bar is positioned along the construction joint direction on both sides of the lower steel edge of the steel-edged waterstop and welded to the inner side of the lower part of the U-shaped bar.

[0007] As a supplement to the present invention, the L-shaped rib is 105mm high and 50mm wide; the U-shaped rib is 350mm high overall and the straight section spacing is 21mm.

[0008] As a supplement to the present invention, the steel edge waterstop is 450mm wide, wherein the rubber part is 250mm wide, and the upper and lower steel edges are 100mm wide.

[0009] As a supplement to the present invention, the dimensions of the square timber are 50mm × 100mm.

[0010] As a supplement to the present invention, the U-shaped and L-shaped bars are made of Φ8 steel bars.

[0011] As a supplement to the present invention, the limiting steel bar is made of Φ10 steel bar.

[0012] As a supplement to the present invention, the L-shaped bar is connected to the upper part of the inner and outer tie bars by tie wire, so that the L-shaped bar is fixed at the center symmetrical position of the upper part of the inner and outer tie bars, and the lower part of the U-shaped bar is spot welded to the center of the inner and outer tie bars, so that the whole is in the center symmetrical position of the construction joint.

[0013] The installation method of the steel-edged waterstop according to the present invention includes the following steps:

[0014] Step 1: Fix the inner and outer tie bars to the vertical main bars by spot welding;

[0015] Step 2: Weld the upper open end of the U-shaped bar to the lower part of the L-shaped bar to form an inverted U-shaped whole. Use tie wire to fix the L-shaped bar to the upper center symmetrical position of the inner and outer tie bars. Spot weld the lower part of the U-shaped bar to the center of the inner and outer tie bars, so that the whole is in the center symmetrical position of the construction joint.

[0016] Step 3: Repeat step 1, and evenly distribute the formed U-shaped bars and L-shaped bars along the construction joint direction at a spacing of 1200mm.

[0017] Step 4: Place the steel edge waterstop into the inverted U-shaped whole formed by welding the U-shaped and L-shaped bars. Arrange two limiting bars along the length of the construction joint on both sides of the lower steel edge of the steel edge waterstop and weld them to the lower inner side of the U-shaped bar to keep the lower part of the steel edge waterstop fixed and straight.

[0018] Step 5: Place two square timbers along the length of the construction joint inside the L-shaped reinforcement and clamp them to secure the upper part of the steel edge waterstop.

[0019] Step 6: During the pouring process, the concrete is poured to the center height of the steel edge waterstop. After the concrete has solidified, the square timber is removed, and finally the remaining device is poured into the concrete.

[0020] The beneficial effects of this invention are:

[0021] (1) The fixing device for the steel edge waterstop has been used to fix the steel edge waterstop, ensuring that the steel edge waterstop is fixed in position and is in the center of the construction joint, and will not move.

[0022] (2) Select L-shaped bars and U-shaped bars to connect with each other to form a whole. Fix the upper and lower parts of the steel edge waterstop with square timber and limiting steel bars respectively to ensure that the steel edge waterstop is straight. Attached Figure Description

[0023] Figure 1 This is a cross-sectional view of the fixing device for steel edge waterstop provided by the present invention;

[0024] Figure 2 This is a plan view of the fixing device for steel edge waterstop provided by the present invention.

[0025] List of identifiers in attached diagrams:

[0026] 1. Steel edge waterstop, 2. U-shaped reinforcement, 3. L-shaped reinforcement, 4. Limiting reinforcement, 5. Square timber, 6. Internal and external tie bars, 7. Tie wire, 8. Vertical main reinforcement. Detailed Implementation

[0027] The present invention will be further illustrated below with reference to the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are for illustrative purposes only and are not intended to limit the scope of the invention.

[0028] like Figure 1 As shown, a fixing device for steel edge waterstop is characterized by being composed of a steel edge waterstop 1, a U-shaped bar 2, an L-shaped bar 3, a Φ10 limiting bar 4, a square timber 5, inner and outer tie bars 6, and binding wire 7.

[0029] The square timber 5 measures 50mm × 100mm; the L-shaped reinforcement 3 is 105mm high and 50mm wide; the U-shaped reinforcement 2 has an overall height of 350mm and a straight section spacing of 21mm. The U-shaped reinforcement 2 and L-shaped reinforcement 3 are made of Φ8 steel bars, and the steel edge waterstop is 450mm wide.

[0030] The U-shaped rib 2 and the L-shaped rib 3 are welded together to form an inverted convex shape.

[0031] A fixing device for steel-edged waterstops, comprising the following steps: (The device is used to fix the steel-edged waterstop during construction.)

[0032] Step 1: Fix the inner and outer tie bars 6 to the vertical main reinforcement bars 8 by spot welding;

[0033] Step 2: The open end of the U-shaped bar 2 is welded to the lower part of the two L-shaped bars 3 to form an inverted convex shape. The L-shaped bar 3 is fixed to the upper center symmetrical position of the inner and outer tie bars 6 using tie wire 7. The lower part of the U-shaped bar 2 is spot welded to the center of the inner and outer tie bars 6, so that the whole is in the center symmetrical position of the construction joint.

[0034] Step 3: Repeat step 1, and arrange the formed U-shaped bars 2 and L-shaped bars 3 evenly along the construction joint direction at a spacing of 1200mm.

[0035] Step 4: Place the steel edge waterstop 1 into the inverted convex shape formed by welding the U-shaped bar 2 and the L-shaped bar 3. Arrange two Φ10 limiting bars 4 along the length of the construction joint on both sides of the lower steel edge of the steel edge waterstop 1 and weld them to the lower inner side of the U-shaped bar 2 to keep the lower part of the steel edge waterstop 1 fixed and straight.

[0036] Step 5: Place two square timbers 5 along the construction joint direction inside the L-shaped reinforcement 3, and clamp and fix the upper part of the steel edge waterstop 1.

[0037] Step 6: During the pouring process, the concrete is poured to the center height of the steel edge waterstop. After the concrete has solidified, the square timber 5 is removed, and finally the remaining device is poured into the concrete.

[0038] It should be noted that the above content merely illustrates the technical concept of the present invention and should not be construed as limiting the scope of protection of the present invention. For those skilled in the art, various improvements and modifications can be made without departing from the principle of the present invention, and all such improvements and modifications fall within the scope of protection of the claims of the present invention.

Claims

1. A fixing device for a steel edge waterstop, characterized in that: The system includes a steel edge waterstop (1), a U-shaped bar (2), an L-shaped bar (3), a limiting bar (4), a square timber (5), and inner and outer tie bars (6). The U-shaped bar (2) and two L-shaped bars (3) are welded together to form an inverted U-shaped whole with an opening at the top. The steel edge waterstop (1) is placed inside the inverted U-shaped whole. The inverted U-shaped whole is set between the inner and outer tie bars (6). Two square timbers (5) are placed side by side along the construction joint direction at the opening above the L-shaped bar (3) to clamp and fix the upper part of the steel edge waterstop (1). Two limiting bars (4) are set along the construction joint direction on both sides of the lower steel edge of the steel edge waterstop (1) and welded to the lower inner side of the U-shaped bar (2).

2. A fixing device for a steel edge sealing strip according to claim 1, characterized in that: The L-shaped rib (3) is 105mm high and 50mm wide; the U-shaped rib (2) is 350mm high overall and the straight section spacing is 21mm.

3. A fixing device for a steel edge sealing strip according to claim 1, characterized in that: The steel-edged waterstop (1) is 450mm wide, of which the rubber part is 250mm wide and the upper and lower steel edges are 100mm wide.

4. A fixing device for a steel edge sealing strip according to claim 1, characterized in that: The square timber (5) has a size of 50mm × 100mm.

5. A fixing device for a steel edge sealing strip according to claim 1, characterized in that: The U-shaped bars (2) and L-shaped bars (3) are made of Φ8 steel bars.

6. A fixing device for a steel edge sealing strip according to claim 1, characterized in that: The limiting reinforcement (4) is made of Φ10 steel.

7. A fixing device for a steel edge sealing strip according to claim 1, characterized in that: The L-shaped bar (3) is connected to the upper part of the inner and outer tie bars by tie wire (7), so that the L-shaped bar (3) is fixed at the center symmetrical position of the upper part of the inner and outer tie bars, and the lower part of the U-shaped bar (2) is spot welded to the center of the lower part of the inner and outer tie bars (6), so that the whole is in the center symmetrical position of the construction joint.

8. A method of installing a fixing device for a steel edge sealing strip according to claim 1, characterized in that: Includes the following steps: Step 1: Fix the inner and outer tie bars (6) to the vertical main reinforcement (8) by spot welding; Step 2: The open end of the U-shaped bar (2) is welded to the lower part of the two L-shaped bars (3) to form an inverted convex shape. The L-shaped bar (3) is fixed to the upper center symmetrical position of the inner and outer tie bars (6) using tie wire (7). The lower part of the U-shaped bar (2) is spot welded to the center of the inner and outer tie bars (6) so that the whole is in the center symmetrical position of the construction joint. Step 3: Repeat step 2, and arrange the formed U-shaped bars (2) and L-shaped bars (3) evenly at a spacing of 1200mm along the construction joint direction; Step 4: Place the steel edge waterstop (1) into the inverted convex shape formed by welding the U-shaped bar (2) and the L-shaped bar (3), and arrange two Φ10 limiting bars (4) along the construction joint direction on both sides of the lower steel edge of the steel edge waterstop (1), and weld them to the lower inner side of the U-shaped bar (2) to keep the lower part of the steel edge waterstop (1) fixed and straight; Step 5: Place two square timbers (5) along the construction joint direction inside the L-shaped reinforcement (3) and clamp and fix the upper part of the steel edge waterstop (1); Step 6: During the pouring process, the concrete is poured to the center height of the steel edge waterstop. After the concrete solidifies, the square timber (5) is removed, and finally the remaining device is poured into the concrete.

Citation Information

Patent Citations

  • Cast-in-place integrated pipe gallery structure deformed joint

    CN111287216A

  • In bury formula steel limit waterstop installation fixing device

    CN207512793U