Section steel trestle platform and bailey trestle platform connecting structure and construction method

Abstract

The invention provides a structural steel trestle platform and Bailey trestle platform connecting structure which comprises a steel pipe pile at the joint of a structural steel trestle platform and a Bailey trestle platform, a cross beam on the side of the Bailey trestle platform is fixed to a pile cap of the steel pipe pile, and vertical channel steel limits Bailey pieces; lower steel channels are welded to the cross beams, the lower portions of the section steel trestle platform side longitudinal beret pieces are welded to the lower steel channels, and the section steel trestle platform side longitudinal beret pieces and the section steel trestle platform side longitudinal beret pieces are fixed through screws at the same time. The upper channel steel is welded and fixed with the longitudinal Bailey pieces on the Bailey trestle platform side and is fixed with the longitudinal Bailey pieces on the section steel trestle platform side through bolts, and a plurality of transverse Bailey pieces are arranged between the upper channel steel and the section steel on the section steel trestle platform side. The operation difficulty caused by short-distance driving of multiple rows of steel pipe piles can be reduced, a large number of steel pipe pile materials can be saved, and rapid construction can be achieved through the standard Bailey pieces and the channel steel.

Description

Technical Field

[0001] The invention belongs to the technical field of bridge construction, and in particular relates to a connection structure and a construction method of a steel trestle platform and a Bailey trestle platform. Background Art

[0002] Due to the influence of clearance, the pier and platform cannot be laid by Bailey sheets at the berth, which requires the use of steel abutments for transition. However, when the traditional steel platform is connected to the Bailey-type pier platform, each is constructed into an independent structure, and the surface is connected through the bridge deck steel plate to achieve continuous walking of the construction machinery. When the existing steel platform is connected to the Bailey-type pier platform, each is constructed into an independent structure. Due to the limited length of the cantilever of the steel and Bailey sheets, the distance between the steel platform and the steel pipe piles of the Bailey pier platform is relatively close, which leads to construction difficulties and has a certain impact on the layer, insufficient utilization of the steel pipe piles, and a certain waste of materials. Summary of the invention

[0003] In view of this, the present invention aims to overcome the defects in the prior art and proposes a connection structure and construction method of a steel trestle platform and a Bailey trestle platform to solve the problem that the two main structures of the existing steel trestle platform and the Bailey sheet trestle platform are independent of each other, but the distance between the steel pipe piles is relatively close, which wastes the steel pipe pile materials and also causes relatively large disturbance to the layer.

[0004] To achieve the above object, the technical solution created by the present invention is implemented as follows:

[0005] A connecting structure of a steel trestle platform and a Bailey trestle platform comprises a steel pipe pile at the junction of the steel trestle platform and the Bailey trestle platform, a crossbeam on the Bailey trestle platform side is fixed on the pile cap of the steel pipe pile, a longitudinal Bailey piece on the steel trestle platform side is arranged close to the crossbeam on the pile cap and is limited by the vertical channel steel on the pile cap; a lower channel steel is welded on the crossbeam, the lower part of each longitudinal Bailey piece on the side of the steel trestle platform is welded to the lower channel steel, and the longitudinal Bailey piece on the Bailey trestle platform side and each longitudinal Bailey piece on the side of the steel trestle platform are fixed by screws at the same time; an upper channel steel is arranged on the lower side of the steel on the side of the steel trestle platform, the upper channel steel is welded and fixed to the longitudinal Bailey piece on the side of the Bailey trestle platform, and is fixed to each longitudinal Bailey piece on the side of the steel trestle platform by bolts, and a plurality of transverse Bailey pieces are arranged between the upper channel steel and the steel on the side of the steel trestle platform.

[0006] Furthermore, 2-3 transverse Bailey plates are arranged between the upper channel steel and the steel section on the side of the steel trestle platform.

[0007] Furthermore, the cross beam on the platform side of the Bailey trestle is welded and fixed to the pile cap of the steel pipe pile.

[0008] Furthermore, the longitudinal Bailey plates on the platform sides of each steel trestle are staggered.

[0009] Furthermore, the screw rod simultaneously passes through the longitudinal Bailey pieces on the Bailey trestle platform side and the longitudinal Bailey pieces on the sides of each steel trestle platform, and both ends of the screw rod are locked by nuts.

[0010] Furthermore, transverse channel steels are provided at corresponding screw positions on both sides of the longitudinal Bailey plates on the Bailey trestle platform side and on both sides of the longitudinal Bailey plates on the side of each steel trestle platform, and pads are provided between the nuts and the transverse channel steels.

[0011] A construction method for a connection structure between a steel trestle platform and a Bailey trestle platform comprises the following steps:

[0012] S1. Drive steel pipe piles, connect piles and install pile caps for steel trestle platforms and Bailey trestle platforms;

[0013] S2, the crossbeam on the Bailey trestle platform side is fixed to the steel pipe pile at the junction of the steel trestle platform and the Bailey trestle platform, and then the longitudinal Bailey pieces on the Bailey trestle platform side and the longitudinal Bailey pieces on the steel trestle platform sides are installed, and vertical channel steel is set on the pile cap to limit the longitudinal displacement of the longitudinal Bailey pieces on the steel trestle platform side;

[0014] S3, welding the upper channel steel on the upper side of the longitudinal Bailey sheet on the Bailey trestle platform side, fixing each longitudinal Bailey sheet on the steel trestle platform side to the upper channel steel by bolts, setting several transverse Bailey sheets between the upper channel steel and the steel on the steel trestle platform side, welding the lower channel steel to the web of the crossbeam on the Bailey trestle platform side, and fixing each longitudinal Bailey sheet on the steel trestle platform side to the lower channel steel by bolts;

[0015] S4, using screw rods to sequentially penetrate the longitudinal Bailey pieces on the Bailey trestle platform side and the longitudinal Bailey pieces on the steel trestle platform side, and on both sides of the longitudinal Bailey pieces on the Bailey trestle platform side and on both sides of the longitudinal Bailey pieces on the steel trestle platform side, transverse channel steels are provided at corresponding screw rod positions, and both ends of the screw rods are respectively locked by nuts;

[0016] S5. Install the steel on the steel trestle platform side, install the transverse distribution beams on the steel trestle platform side and the Bailey trestle platform side, and finally lay the bridge deck.

[0017] Compared with the prior art, the present invention has the following advantages:

[0018] The invention has a reasonable structure and high stability. The number of steel pipe piles is designed according to the width of the trestle platform. The distribution beam and the transverse Bailey piece are fixed on the pile cap. The transverse Bailey pieces are arranged in two or three groups side by side according to the force requirements, and their longitudinal displacement is limited by the vertical channel steel. The longitudinal Bailey pieces are fixed to the upper channel steel by bolts, and the lower channel steel is welded to the cross beam. By sharing a row of steel pipe piles, the operational difficulties caused by driving multiple rows of steel pipe piles in a short distance can be reduced, and a large amount of steel pipe pile materials can be saved. Rapid construction can be achieved through standard Bailey pieces and channel steels, saving construction time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings constituting part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments and descriptions of the present invention are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0020] Figure 1 It is an overall schematic diagram of the steel trestle platform and the Bailey trestle platform of the present invention;

[0021] Figure 2 It is an elevation view of the connection structure between the steel trestle platform and the Bailey trestle platform of the present invention;

[0022] Figure 3 It is a side view of the connection structure between the steel trestle platform and the Bailey trestle platform of the present invention. DETAILED DESCRIPTION

[0023] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0024] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0025] In the description of the invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the invention can be understood according to specific circumstances.

[0026] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0027] A connection structure between a steel trestle platform and a Bailey trestle platform, such as Figures 1 to 3 As shown, it includes a steel pipe pile 1 at the junction of the steel trestle platform and the Bailey trestle platform, a crossbeam 4 on the Bailey trestle platform side is fixed on the pile cap 3 of the steel pipe pile, a longitudinal Bailey piece 2 on the steel trestle platform side is arranged close to the crossbeam on the pile cap, and is limited by the vertical channel steel 5 on the pile cap; a lower channel steel is welded on the crossbeam, and the lower part of the longitudinal Bailey piece on the side of each steel trestle platform is welded to the lower channel steel, and the longitudinal Bailey piece 21 on the Bailey trestle platform side and the longitudinal Bailey piece on the side of each steel trestle platform are fixed by a screw rod 7 at the same time; an upper channel steel 6 is provided on the lower side of the steel 11 on the side of the steel trestle platform, and the upper channel steel is welded and fixed to the longitudinal Bailey piece on the side of the Bailey trestle platform, and is fixed to the longitudinal Bailey piece on the side of each steel trestle platform by bolts, and mounting holes 14 are correspondingly provided on the longitudinal Bailey piece on the side of the steel trestle platform and on the upper channel steel, and the bolts are penetrated into the mounting holes. Several transverse Bailey plates are arranged between the upper channel steel and the steel section on the side of the steel trestle platform.

[0028] 2-3 transverse Bailey plates are arranged between the upper channel steel and the steel section on the side of the steel trestle platform. The crossbeam on the side of the Bailey trestle platform is welded and fixed to the pile cap of the steel pipe pile. The longitudinal Bailey plates on the side of each steel trestle platform are arranged in a staggered manner. The screw rod simultaneously passes through the longitudinal Bailey plates on the side of the Bailey trestle platform and the longitudinal Bailey plates on the side of each steel trestle platform, and the two ends of the screw rod are locked by nuts 9. Transverse channel steels 8 are arranged at the corresponding screw rod positions on both sides of the longitudinal Bailey plates on the side of the Bailey trestle platform and on both sides of the longitudinal Bailey plates on the side of each steel trestle platform, and pads are provided between the nuts and the transverse channel steels.

[0029] A construction method for a connection structure between a steel trestle platform and a Bailey trestle platform comprises the following steps:

[0030] S1. Drive steel pipe piles, connect piles and install pile caps for steel trestle platforms and Bailey trestle platforms. The number of steel pipe piles is designed according to the width of the trestle platform. For example, two piles are used for widths below 8m and three piles are used for widths between 8m and 12m. If the width of the platform increases, the number of steel pipe piles increases accordingly according to the load.

[0031] S2, the crossbeam on the Bailey trestle platform side is fixed to the steel pipe pile at the junction of the steel trestle platform and the Bailey trestle platform, and then the longitudinal Bailey pieces on the Bailey trestle platform side and the longitudinal Bailey pieces on the steel trestle platform sides are installed, and vertical channel steel is set on the pile cap to limit the longitudinal displacement of the longitudinal Bailey pieces on the steel trestle platform side;

[0032] S3, welding the upper channel steel on the upper side of the longitudinal Bailey sheet on the Bailey trestle platform side, fixing each longitudinal Bailey sheet on the steel trestle platform side to the upper channel steel by bolts, setting several transverse Bailey sheets between the upper channel steel and the steel on the steel trestle platform side, welding the lower channel steel to the web of the crossbeam on the Bailey trestle platform side, and fixing each longitudinal Bailey sheet on the steel trestle platform side to the lower channel steel by bolts;

[0033] S4, using screw rods to sequentially penetrate the longitudinal Bailey pieces on the Bailey trestle platform side and the longitudinal Bailey pieces on the steel trestle platform side, and on both sides of the longitudinal Bailey pieces on the Bailey trestle platform side and on both sides of the longitudinal Bailey pieces on the steel trestle platform side, transverse channel steels are provided at corresponding screw rod positions, and both ends of the screw rods are respectively locked by nuts;

[0034] S5, installing the steel sections on the steel trestle platform side, installing the transverse distribution beams 10 on the steel trestle platform side and the Bailey trestle platform side, and finally laying the bridge deck 12.

[0035] The invention has a reasonable structure and high stability. The number of steel pipe piles is designed according to the width of the trestle platform. The distribution beam and the transverse Bailey piece are fixed on the pile cap. The transverse Bailey pieces are arranged in two or three groups side by side according to the force requirements, and their longitudinal displacement is limited by the vertical channel steel. The longitudinal Bailey pieces are fixed to the upper channel steel by bolts, and the lower channel steel is welded to the cross beam. By sharing a row of steel pipe piles, the operational difficulties caused by driving multiple rows of steel pipe piles in a short distance can be reduced, and a large amount of steel pipe pile materials can be saved. Rapid construction can be achieved through standard Bailey pieces and channel steels, saving construction time.

[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A connection structure between a steel trestle platform and a Bailey trestle platform, characterized in that: It includes steel pipe piles at the connection between the steel trestle platform and the Bailey trestle platform, the crossbeam on the Bailey trestle platform side is fixed on the pile cap of the steel pipe pile, the longitudinal Bailey piece on the steel trestle platform side is arranged close to the crossbeam on the pile cap, and is limited by the vertical channel steel on the pile cap; the lower channel steel is welded on the crossbeam, the lower part of the longitudinal Bailey piece on the side of each steel trestle platform is welded to the lower channel steel, and the longitudinal Bailey piece on the Bailey trestle platform side and the longitudinal Bailey piece on the side of each steel trestle platform are fixed by screws at the same time; the lower side of the steel on the side of the steel trestle platform is provided with an upper channel steel, the upper channel steel is welded and fixed to the longitudinal Bailey piece on the side of the Bailey trestle platform, and is fixed to the longitudinal Bailey piece on the side of each steel trestle platform by bolts, and several transverse Bailey pieces are arranged between the upper channel steel and the steel on the side of the steel trestle platform.

2. The connection structure of a steel trestle platform and a Bailey trestle platform according to claim 1, characterized in that: 2-3 transverse Bailey plates are set between the upper channel steel and the steel on the side of the steel trestle platform.

3. The connection structure of a steel trestle platform and a Bailey trestle platform according to claim 1, characterized in that: The cross beam on the platform side of the Bailey Bridge is welded and fixed to the pile cap of the steel pipe pile.

4. The connection structure of a steel trestle platform and a Bailey trestle platform according to claim 1, characterized in that: The longitudinal Bailey plates on the platform sides of each type of steel trestle are arranged in a staggered manner.

5. The connection structure of a steel trestle platform and a Bailey trestle platform according to claim 1, characterized in that: The screw rod simultaneously passes through the longitudinal Bailey pieces on the Bailey trestle platform side and the longitudinal Bailey pieces on the sides of each steel trestle platform, and both ends of the screw rod are locked by nuts.

6. The connection structure of a steel trestle platform and a Bailey trestle platform according to claim 5, characterized in that: Both sides of the longitudinal Bailey pieces on the Bailey trestle platform side and both sides of the longitudinal Bailey pieces on the steel trestle platform side are provided with transverse channel steels at corresponding screw rod positions, and a pad 13 is provided between the nut and the transverse channel steels.

7. A construction method for the connection structure between the steel trestle platform and the Bailey trestle platform according to any one of claims 1 to 6, characterized in that: The steps include: S1. Drive steel pipe piles, connect piles and install pile caps for steel trestle platforms and Bailey trestle platforms; S2, the crossbeam on the Bailey trestle platform side is fixed to the steel pipe pile at the junction of the steel trestle platform and the Bailey trestle platform, and then the longitudinal Bailey pieces on the Bailey trestle platform side and the longitudinal Bailey pieces on the steel trestle platform sides are installed, and vertical channel steel is set on the pile cap to limit the longitudinal displacement of the longitudinal Bailey pieces on the steel trestle platform side; S3. Weld the upper channel steel on the upper side of the longitudinal Bailey sheet on the Bailey platform side, fix each longitudinal Bailey sheet on the steel trestle platform side to the upper channel steel by bolts, set several transverse Bailey sheets between the upper channel steel and the steel on the steel trestle platform side, weld the lower channel steel to the web of the crossbeam on the Bailey platform side, and fix each longitudinal Bailey sheet on the steel trestle platform side to the lower channel steel by bolts; S4, using screw rods to sequentially penetrate the longitudinal Bailey pieces on the Bailey trestle platform side and the longitudinal Bailey pieces on the steel trestle platform side, and on both sides of the longitudinal Bailey pieces on the Bailey trestle platform side and on both sides of the longitudinal Bailey pieces on the steel trestle platform side, transverse channel steels are provided at corresponding screw rod positions, and both ends of the screw rods are respectively locked by nuts; S5. Install the steel on the steel trestle platform side, install the transverse distribution beams on the steel trestle platform side and the Bailey trestle platform side, and finally lay the bridge deck.

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