WO2023226319A1 - Dispositif de protection pour la construction par soudage en haute altitude de nervure d'arche en forme de caisson en acier à haute résistance de grand pont - Google Patents

Dispositif de protection pour la construction par soudage en haute altitude de nervure d'arche en forme de caisson en acier à haute résistance de grand pont Download PDF

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Publication number
WO2023226319A1
WO2023226319A1 PCT/CN2022/131802 CN2022131802W WO2023226319A1 WO 2023226319 A1 WO2023226319 A1 WO 2023226319A1 CN 2022131802 W CN2022131802 W CN 2022131802W WO 2023226319 A1 WO2023226319 A1 WO 2023226319A1
Authority
WO
WIPO (PCT)
Prior art keywords
frame
strength steel
protective device
arch
steel box
Prior art date
Application number
PCT/CN2022/131802
Other languages
English (en)
Chinese (zh)
Inventor
杜飞
王艳华
刘海龙
曹庆喜
郑磊
周科文
牛凯
王峻
郭强
胡娟
陈天怡
谢耿
Original Assignee
中国路桥工程有限责任公司
南通振华重型装备制造有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 中国路桥工程有限责任公司, 南通振华重型装备制造有限公司 filed Critical 中国路桥工程有限责任公司
Publication of WO2023226319A1 publication Critical patent/WO2023226319A1/fr

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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D2/00—Bridges characterised by the cross-section of their bearing spanning structure
    • E01D2/04—Bridges characterised by the cross-section of their bearing spanning structure of the box-girder type
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G1/00—Scaffolds primarily resting on the ground
    • E04G1/02—Scaffolds primarily resting on the ground composed essentially of members elongated in one dimension only, e.g. poles, lattice masts, with or without end portions of special form, connected together by any means
    • E04G1/04—Scaffolds primarily resting on the ground composed essentially of members elongated in one dimension only, e.g. poles, lattice masts, with or without end portions of special form, connected together by any means the members being exclusively poles, rods, beams, or other members of similar form and simple cross-section
    • E04G1/06—Scaffolds primarily resting on the ground composed essentially of members elongated in one dimension only, e.g. poles, lattice masts, with or without end portions of special form, connected together by any means the members being exclusively poles, rods, beams, or other members of similar form and simple cross-section comprising members with rod-like or tubular portions fitting together end to end, with or without separate connecting pieces

Definitions

  • the utility model relates to the technical field of manufacturing steel bridge box arch ribs, and in particular to a protective device for high-altitude welding construction of high-strength steel box arch ribs for large bridges.
  • S690 grade high-strength steel has a greater tendency to be hardened, and cold cracks are prone to occur during welding.
  • the welding quality is difficult to guarantee. It has high requirements on the welding process and welding environment, and is especially sensitive to rain and wind. Therefore, when using high-strength steel materials, The moisture-proof and thermal insulation measures taken when the box-shaped arch ribs are closed and welded at high altitude are very critical.
  • the utility model provides a protective device for high-altitude welding construction of high-strength steel box-shaped arch ribs of large bridges, thereby effectively solving the problems in the background technology.
  • a protective device for high-altitude welding construction of high-strength steel box-type arch ribs of large bridges including:
  • a support frame configured as an arch structure as a whole, and the top of the support frame is provided with a slope structure;
  • the protective railings are arranged on the top of the supporting frame and are arranged around the top of the supporting frame;
  • the ladder is fixedly arranged on one end of the support frame, and the ladder is arranged vertically;
  • Covering structure covers the support frame, and the joints of the two box-shaped arch ribs are located in the opening of the arch structure.
  • the covering structure blocks wind and rain.
  • the support frame includes two bottom frames and a top frame.
  • the top frame is provided at the top of the two bottom frames.
  • An opening is provided between the two bottom frames.
  • the two bottom frames and the top frame constitute The arch structure.
  • the two bottom frames respectively include:
  • a plurality of support poles, a plurality of the support poles are arranged vertically, and the top ends are fixedly connected to the top frame;
  • a number of supporting cross bars are arranged horizontally, and both ends are fixedly connected to the two supporting vertical bars respectively.
  • the bottom frame further includes a plurality of first diagonal struts, which are arranged at an angle. Both ends of the first diagonal struts are respectively fixedly connected to two supporting vertical poles to support them.
  • a second diagonal strut is provided between the two bottom frames.
  • the second diagonal strut is arranged at an angle and is located at the top of the opening of the arch structure.
  • the second diagonal strut is opposite to the arch structure. Support the opening.
  • the top frame includes a plurality of transverse square tubes and a longitudinal square tube, and the plurality of transverse square tubes and longitudinal square tubes are perpendicular to each other to form a rectangular frame, and the top frame is arranged at an angle.
  • lifting rings are fixedly provided on the top frame.
  • the protective railing includes a bottom plate and a plurality of rods.
  • the bottom plate is fixedly connected to the top frame.
  • the plurality of rods constitute a frame structure for protection.
  • the protective railing is provided with a passage at the ladder.
  • the ladder includes a straight ladder and a cage.
  • the straight ladder is arranged vertically.
  • the straight ladder is provided with a connecting piece at one end close to the supporting frame.
  • the connecting piece is fixedly connected to the supporting frame.
  • the cage is arranged at one end of the straight ladder away from the support frame to protect personnel.
  • the utility model is provided with a supporting frame, a protective railing, a ladder and a covering structure.
  • the supporting frame is set as an arch structure as a whole, and the covering structure covers the outside of the supporting frame.
  • the The protective device is placed on the box-shaped arch ribs.
  • the box-shaped arch ribs pass through the arch structure.
  • the joint between the two box-shaped arch ribs is located in the opening of the arch structure.
  • the welding area is located inside the protective device, which can prevent wind and rain. Effectively control the ambient temperature and humidity in the welding area, provide strong conditions for high-strength steel welding, ensure welding quality, and improve construction efficiency.
  • Figure 1 is a side view of the utility model
  • Figure 2 is a front view of the utility model
  • Figure 3 is a top view of the utility model
  • Figure 4 is a front view of the supporting frame
  • Figure 5 is a top view of the supporting frame
  • Figure 6 is a cross-sectional view of A-A in Figure 5;
  • Figure 7 is a side view of the supporting frame
  • Figure 8 is a schematic structural diagram of the protective railing
  • Figure 9 is a schematic structural diagram of the protective railing at the ladder.
  • Figure 10 is a side view of the ladder.
  • connection should be understood in a broad sense.
  • it can be a fixed connection or a detachable connection. , or integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediary, or it can be an internal connection between two components.
  • connection should be understood in a broad sense.
  • it can be a fixed connection or a detachable connection. , or integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediary, or it can be an internal connection between two components.
  • a protective device for high-altitude welding construction of high-strength steel box arch ribs for large bridges including:
  • Support frame 1 the support frame 1 is configured as an arch structure as a whole, and the top of the support frame 1 is provided with a slope structure 11;
  • the protective railing 2 is arranged on the top of the supporting frame 1, and is arranged around the top of the supporting frame 1;
  • the ladder 3 is fixedly installed on one end of the support frame 1, and the ladder 3 is installed vertically;
  • the cladding structure 4 covers the support frame 1.
  • the joints of the two box-shaped arch ribs are located in the opening of the arch structure.
  • the cladding structure 4 shields the wind and rain.
  • the cladding structure 4 can be set as Color steel tiles.
  • the support frame 1 is set as an arch structure as a whole, and the cladding structure 4 covers the outside of the support frame 1.
  • the protective device is placed on On the box-shaped arch ribs, the box-shaped arch ribs pass through the arch structure.
  • the joint between the two box-shaped arch ribs is located in the opening of the arch structure.
  • the welding area is located inside the protective device, which can achieve wind and rain protection and effectively control the welding.
  • the regional ambient temperature and humidity provide strong conditions for high-strength steel welding, ensure welding quality, and improve construction efficiency.
  • the top of the support frame 1 is provided with a slope-shaped structure 11, which can effectively allow rainwater to slide down and prevent it from accumulating on the top of the protective device.
  • the support frame 1 includes two bottom frames 12 and a top frame 13.
  • the top frame 13 is provided at the top of the two bottom frames 12.
  • An opening is provided between the two bottom frames 12.
  • the two bottom frames 12 and the top frame 13 form an arch. structure.
  • the two bottom frames 12 and the top frame 13 form an arch structure, so that the box-shaped arch ribs pass between the arch structures. Since the supporting frame 1 is provided with a cladding structure 4, it is effective Provide protection from wind and rain.
  • the two bottom frames 12 respectively include:
  • Several support poles 121 are arranged vertically, and the top ends are fixedly connected to the top frame 13;
  • a plurality of supporting cross bars 122 are arranged horizontally, and both ends are fixedly connected to the two supporting vertical bars 121 respectively.
  • the bottom frame 12 also includes a plurality of first diagonal struts 123.
  • the plurality of first diagonal struts 123 are arranged at an angle. Both ends of the first diagonal struts 123 are respectively fixedly connected to the two support poles 121 to support them.
  • a number of support vertical bars 121, support cross bars 122 and first diagonal braces 123 are provided to ensure the structural strength of the bottom frame 12, to resist wind and rain, and not to cause deformation.
  • a second diagonal brace 14 is provided between the two bottom frames 12.
  • the second diagonal brace 14 Arranged at an angle and located at the top of the opening of the arch structure, the second diagonal brace 14 supports the opening of the arch structure to ensure the structural strength of the support frame 1 .
  • the top of the protective device needs to be set as a slope structure 11 to facilitate rainwater sliding down, the heights at both ends of the opening of the arch structure are set differently.
  • the top frame 13 includes a plurality of transverse square tubes 131 and a longitudinal square tube 132.
  • the plurality of transverse square tubes 131 and longitudinal square tubes 132 are perpendicular to each other to form a rectangular frame, and the top frame 13 is arranged at an angle.
  • lifting rings 133 are fixedly provided on the top frame 13 .
  • a number of lifting rings 133 are fixedly provided on the top frame 13 .
  • the protective railing 2 includes a bottom plate 21 and a plurality of rods 22.
  • the bottom plate 21 is fixedly connected to the top frame 13.
  • the plurality of rods 22 constitute a frame structure for protection.
  • the protective railing 2 is provided with a passage 23 at the ladder 3.
  • a passage 23 is provided on the protective railing 2 to facilitate the entry of personnel.
  • the ladder 3 includes a straight ladder 31 and a cage 32.
  • the straight ladder 31 is installed vertically.
  • the straight ladder 31 is provided with a connecting piece 311 at one end close to the supporting frame 1.
  • the connecting piece 311 is fixedly connected to the supporting frame 1.
  • the cage 32 is arranged at one end of the straight ladder 31 away from the support frame 1 to protect personnel.
  • the ladder 3 is provided with a straight ladder 31 and a cage 32.
  • the straight ladder 31 is provided with a connecting piece 311 at one end of the straight ladder 31 close to the supporting frame 1.
  • the connecting piece 311 is fixedly connected to the supporting frame 1.
  • the cage 32 is arranged on the straight ladder. 31 is away from the end of the support frame 1. When the personnel are on the ladder 3, the cage 32 protects the workers and protects the safety of the workers.
  • present utility model is not limited by the above-mentioned embodiments.
  • the above-mentioned embodiments and descriptions only illustrate the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model can be There will also be various changes and improvements in the new model, and these changes and improvements all fall within the scope of the claimed utility model.
  • the protection scope of the present utility model is defined by the appended claims and their equivalents.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Bridges Or Land Bridges (AREA)
  • Ladders (AREA)

Abstract

L'invention concerne un dispositif de protection pour la construction par soudage en haute altitude d'une nervure d'arche en forme de caisson en acier haute résistance d'un grand pont, comprenant : une ossature de support (1) configurée d'un seul tenant dans une structure d'arche, et dont une extrémité supérieure est pourvue d'une structure en pente (11) ; un garde-corps de protection (2) disposé au niveau et autour de l'extrémité supérieure de l'ossature de support (1) ; une échelle (3) disposée fixe à une extrémité de l'ossature de support (1) et agencée verticalement ; et une structure de revêtement (4) recouvrant l'ossature de support (1), un joint entre deux nervures d'arche en forme de caisson étant placé dans une ouverture de la structure d'arche, et la structure de revêtement (4) protégeant le dispositif du vent et de la pluie. Les nervures d'arche en forme de caisson traversent la structure d'arche, le joint entre les deux nervures d'arche en forme de caisson est placé dans l'ouverture de la structure d'arche, et une zone de soudage est située à l'intérieur du dispositif de protection, de sorte que le vent et la pluie puissent être empêchés, que la température ambiante et l'humidité d'une zone de brasage puissent être régulées efficacement, que d'excellentes conditions soient réunies pour le soudage d'acier à haute résistance, que la qualité de soudage soit garantie et que l'efficacité de construction soit améliorée.
PCT/CN2022/131802 2022-05-23 2022-11-15 Dispositif de protection pour la construction par soudage en haute altitude de nervure d'arche en forme de caisson en acier à haute résistance de grand pont WO2023226319A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202221311387.9U CN217810519U (zh) 2022-05-23 2022-05-23 一种大型桥梁高强钢箱型拱肋高空焊接施工的防护装置
CN202221311387.9 2022-05-23

Publications (1)

Publication Number Publication Date
WO2023226319A1 true WO2023226319A1 (fr) 2023-11-30

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PCT/CN2022/131802 WO2023226319A1 (fr) 2022-05-23 2022-11-15 Dispositif de protection pour la construction par soudage en haute altitude de nervure d'arche en forme de caisson en acier à haute résistance de grand pont

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CN (1) CN217810519U (fr)
WO (1) WO2023226319A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB473023A (en) * 1936-03-03 1937-10-04 Archibald Milne Hamilton Improvements in the construction of buildings with metal skeletons
CN206034305U (zh) * 2016-08-30 2017-03-22 中铁宝桥集团有限公司 一种高空焊接施工的防护装置
CN215519816U (zh) * 2021-09-02 2022-01-14 中交一公局第二工程有限公司 钢桁梁可拆卸式换栓防护平台

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB473023A (en) * 1936-03-03 1937-10-04 Archibald Milne Hamilton Improvements in the construction of buildings with metal skeletons
CN206034305U (zh) * 2016-08-30 2017-03-22 中铁宝桥集团有限公司 一种高空焊接施工的防护装置
CN215519816U (zh) * 2021-09-02 2022-01-14 中交一公局第二工程有限公司 钢桁梁可拆卸式换栓防护平台

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