KR20070067307A - Exchangable expansion joint with leak stop - Google Patents

Abstract

A replaceable expansion joint device is provided to prevent the leakage of water by installing an expansion member in the clearance of the slab in the U-shape and to make maintenance easy by replacing an expansion member only. The invention relates to a replaceable expansion joint device(1) for preventing the leakage of water, which includes a pair of supports provided with a fixing groove(11) and buried in or attached to a slab, and a replaceable expansion member(12) fitted to the fixing groove and fixed to a pair of fixtures(13) with a bolt and a nut to be installed in the clearance of the slab in the U-shape.

Description

       Leakage-proof expansion joints {Exchangable expansion joint with leak stop}

1 is a front view showing a conventional expansion joint device used

Figure 2 is a front view showing a buried replacement type leakage preventing expansion joint device of the present invention

Figure 3 is a front view showing the attachment replacement type leakage preventing expansion joint device of the present invention

Figure 3a is a finger-type leakproof expansion joint device is installed foreign matter accumulation prevention rubber

3b is a finger-type leakproof expansion joint device

Figure 4 is a perspective view of the expansion joint leakage preventing device of the present invention

Figure 4a is a perspective view of the elastic member holder is installed

Figure 4b is a perspective view of installing the elastic member holder

<Explanation of symbols for the main parts of the drawings>

1: expansion joint 2: internal waterproof rubber material

3: spanning 4: scaffolding

5: slab 7: slab rebar

10: fixed base 11: fixed groove

11-1: Finger Type Double Retaining Groove 11-2: Finger Type Retaining Groove

12: elastic member 13: elastic member holder

14: stud bolt 15: expansion member fixing bolt nut

16: elastic member reinforcement

The present invention relates to a leak-proof replaceable expansion joint device, in particular in the lower portion of the expansion joint is fixed to the pedestal with a fixing groove is installed in the slab concrete, or installed to protrude into the oil, and fixed to the expansion member When pushed into the pedestal fixing grooves, the expansion member is installed in the U-shape between the oil passages, and prevents all leakage of the expansion joint generated from the upper side of the leak prevention replaceable expansion joint configured to replace only the expansion member.

Generally, the space between the slab expansion joint part is to accommodate the expansion and contraction of the slab due to temperature change, dry shrinkage, CREEP, etc., and the expansion joint device plays a role of preventing leakage while connecting the slab and the slab.

The current leakage of expansion joint is caused by natural crack between concrete and steel, breakage of expansion joint, and rubber member. Due to the early replacement of the new expansion joints in order to prevent damage to expensive scaffolds and concrete corrosion in the lower part of the slab, much budget is wasted.

Therefore, the present invention was invented to solve the above problems, all leaks are generated from the top of the slab flows into the flow, so that the pair is provided with a fixing groove in the fixing pedestal for fixing the elastic member The elastic member is fixed to the fixing groove having the same shape as the fixing groove and can be pushed in and removed from the fixing groove so that the elastic member is U-shaped in the gap to prevent any leakage. It is intended to facilitate maintenance by allowing only the upper body or the stretchable member to be replaced.

The present invention is applicable to both new bridges and existing bridges and a pair of pedestal (10) having a fixing groove (11) for fixing the expansion and contraction member (12) in the lower portion of the expansion joint device and embedded or attached to the slab and , Is fixed to the fixing groove 11 and fixed to the elastic member 12. insertion. The elastic member 12 coupled with the replaceable holder 13 is installed in the slab flow in a U-shape to be configured to prevent any leakage.

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" 등 여러 형태로 구성할 수 있으며, 신축 부재를 고정하는 고정대(13)의 형상은 고정홈(11)과 같은 형상으로 고정. 교환이 가능하게 구성할 수 있다.The pedestal 10 is a solid steel material and the fixing groove 11 is "

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It can be configured in various forms, such as, the shape of the holder 13 for fixing the stretchable member can be configured in the same shape as the fixing groove (11).

 According to the embodiment, the buried type can be attached firmly by welding the slab reinforcement (7) by attaching the stud bolts (14) at a predetermined interval on the back of each pedestal.

Attachment type can be fixed to the pedestal 10 by using the expansion joint side plate and the iron plate and the fixing groove 11 is between the clearances.

The elastic member 12, the holder 13 is manufactured in the same shape as the fixing groove 11 of various forms can be configured in the form that can be inserted, fixed, exchangeable, the elastic member 12 is fixed to the holder 13 While firmly fixed, easy replacement of the bolt, nut 15 is configured.

The stretchable member 12 uses a waterproof material of a rubber member, inserts a reinforcement 16 therein to withstand the load caused by the inflow of foreign matter, and prevents any leakage flowing into the slab flow by continuing without a joint. do.

The expansion joint leakage preventing device according to an embodiment of the present invention will be described using FIG. 1, 2, 3, 4 ,.

1 is a front view showing a state in which a waterproof rubber material 2 is attached to a conventional expansion joint device 1 to prevent leakage.

2 is a front view showing a buried type leakage preventing expansion joint device of the present invention,

3 is a front view showing the attachment type leakage preventing expansion joint device of the present invention,

Figure 4 is a perspective view showing a leak prevention apparatus according to the present invention.

As a buried embodiment of the present invention, before pouring concrete, the pedestal 10 of the present invention is completely fixed by welding with the stud bolts 14 attached to the back of the pedestal and the reinforcing bars 7 of the slab, as shown in FIG. (10) and the upper expansion joint device is fixed, the concrete is placed, and the expansion member (12) is fixed to the pedestal fixing groove (11) and the fixing member (12) is fixed at one end of the bridge, the elastic member 12 is U Installed in a shape. All leaks can be completely prevented from entering the bridge substructure and damaging them, while only the flexible members can be replaced for easy maintenance.

Although the above description has been described as an example by the embodiment of the present invention, it is not limited to the above-described embodiment and it can be seen that the technical idea of the present invention can be variously changed and modified.

As described above, the expansion joint installed in the slab clearance is installed as a steel member on the top of the slab clearance for the safety of vehicles, trains, people, etc. passing through the upper slab, leakage prevention also combines the steel member and the rubber member It is made of a non-drainable waterproof concept at the top, but it is impossible to waterproof rainwater in case of rain due to cracks in joints and concrete joints due to breakage of rubber members and standardized products. Therefore, in order to prevent damage to the bridge due to leakage, the steel member is good, even if there is no obstacle to traffic, replacing the entire expansion joint device has caused a lot of budget and inconvenience. The present invention is installed in the lower portion of the slab clearance, and the expansion and contraction member completely prevents leakage, the structure that can slide the entire width of the bridge at both ends of the bridge without a seam, the foreign matter cleaning and the replacement of the expansion member is easy to replace all the leaks of the bridge It is a semi-permanent and economical leakproof replacement expansion joint device that can completely prevent the

Claims (7)

In the expansion joint device installed between the slab of the bridge and the slab, a pair of pedestals 10 having a fixing groove 11 in the lower portion of the expansion joint are embedded in the side of the slab concrete, and in the fixing groove 11 The elastic member 12 is coupled to the pair of fasteners 13 that can be inserted and exchanged with the bolt nut 15 so that the elastic member 12 can be inserted into and removed from the fixing groove 11 at one end of the bridge. It is possible to remove, clean and replace, leak-proof expansion joint expansion device characterized in that the U-shaped installation in the slab clearance is configured to prevent leakage. The method of claim 1, wherein the fixing groove 11 in the pair of pedestal 10 is configured to double the upper groove (11-1), lower groove (11-2), it is configured to prevent the foreign matter and leakage double Leak-proof replaceable expansion joint device characterized in that. In claim 1, Leakage member 12 is a rubber material and the leak-proof replaceable expansion joint device characterized in that it is configured by inserting a reinforcement (16) therein. In claim 1, The expansion member 12 is a leak-proof replaceable expansion joint device, characterized in that consisting of a thin steel sheet (iron piece) that can be stretched. In claim 1,  The shape of the fixing groove 11 of the pedestal 10 is composed of a variety of circular, square, rectangular, etc., leak-proof replaceable expansion joint device characterized in that consisting of a durable steel member. In claim 1, A pair of pedestals 10 having a fixing groove 11 is attached to a separate steel member and fixed to the lower portion of the expansion joint device so as to be installed in the clearance gap 3 between the slab 6 and the slab 6. Leak-proof replaceable expansion joint. The method according to any one of claims 1 to 6, Pedestal (10) and the fixed base (13) is a leak-proof replaceable expansion joint device, characterized in that configured to be extruded by aluminum material.

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