WO2021022608A1 - 一种过混凝土连续梁免拆装移动模架 - Google Patents

一种过混凝土连续梁免拆装移动模架 Download PDF

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Publication number
WO2021022608A1
WO2021022608A1 PCT/CN2019/104709 CN2019104709W WO2021022608A1 WO 2021022608 A1 WO2021022608 A1 WO 2021022608A1 CN 2019104709 W CN2019104709 W CN 2019104709W WO 2021022608 A1 WO2021022608 A1 WO 2021022608A1
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Prior art keywords
concrete box
box girder
movable formwork
concrete
longitudinal movement
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PCT/CN2019/104709
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English (en)
French (fr)
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吴德帝
江明坤
杨成明
孔庆哲
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山东恒堃机械有限公司
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Publication of WO2021022608A1 publication Critical patent/WO2021022608A1/zh

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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
    • E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
    • 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
    • E01D21/06—Methods or apparatus specially adapted for erecting or assembling bridges by translational movement of the bridge or bridge sections

Definitions

  • the invention relates to the technical field of bridge construction, in particular to a mobile formwork without disassembly and assembly for a continuous beam through concrete.
  • the mobile formwork bridge building machine is a construction machine with its own formwork, which uses the platform or pier column as the support to cast the bridge on-site. It has the characteristics of good construction quality, simple construction and low cost. It has been widely used in the continuous beam construction of highway bridges and railway bridges in China. However, in the construction site, if it encounters a construction environment that spans railways, viaducts, and expressways, the length of the box girder of the span will exceed the length of the mobile formwork. The box girder of this span is often constructed by hanging basket construction. However, the mobile formwork needs to be dismantled.
  • the present invention provides a disassembly-free mobile formwork for continuous beams over concrete, which is suitable for smooth longitudinal movement of the mobile formwork in an ultra-long box girder construction environment.
  • a disassembly-free mobile formwork for continuous concrete beams including:
  • Two cross beams are horizontally arranged at the front and rear ends of the poured concrete box girder along the left and right directions.
  • the left and right sides below the cross beam are respectively installed with hangers in the vertical direction.
  • the lower end of the hanger is connected to the movable formwork on the same side.
  • the upper end of the main beam is connected;
  • the longitudinal movement propulsion device is arranged above the concrete box girder, and is used to drive the crossbeam to drive the mobile formwork to move longitudinally forward along the length of the concrete box girder;
  • the hydraulic jack is arranged between the concrete box girder and the crossbeam through a guiding device, and the hydraulic jack drives the crossbeam to move up and down to change its height relative to the concrete box girder.
  • the above-mentioned longitudinal movement propulsion device includes a longitudinal movement cylinder, which is installed on the concrete box beam, the piston rod head end of the longitudinal movement cylinder is connected with the sliding seat, and the axis of the longitudinal movement cylinder is parallel to the length direction of the concrete box beam .
  • the above-mentioned guide device includes a plurality of guide rods II arranged around the hydraulic jack.
  • the guide rod II is vertically arranged, and its lower end is fixed on the sliding seat.
  • a plurality of guide rods I are arranged around the outer side of the guide rod II. I is arranged vertically, and its upper end is fixed to the lower end of the beam.
  • it further includes a sliding plate arranged at the upper end of the track, the upper end surface of the sliding plate and the lower end surface of the sliding seat sliding and friction contact, and the sliding plate is made of engineering plastic alloy material.
  • the gusset plate In order to further improve reliability, it also includes L-shaped gusset plates respectively located on the left and right sides of the rail.
  • the upper ends of the gusset plates are connected and fixed to the bottom of the sliding seat.
  • the left and right sides of the rail are respectively provided with flanges. Insert it into the groove in the corresponding gusset on the same side.
  • the beneficial effect of the present invention is: when the distance between the two piers exceeds the length of the movable formwork, the concrete box girder is built between the two piers using the hanging basket, and then the track is laid on the concrete box girder.
  • the moving and propelling device moves, and the driving beam uses the hanger to hang the mobile formwork behind the concrete box beam to move forward along the length of the concrete box beam until it moves to the front end of the concrete box beam, realizing the reverse transportation of the mobile formwork.
  • the hydraulic jack action drives the crossbeam to move up and down relative to the concrete box girder to adjust the elevation.
  • the mobile formwork can be used to continue the construction of the standard span concrete box girder, avoiding the removal, transportation and reinstallation of the mobile formwork , Improve construction efficiency and reduce manufacturing costs.
  • Figure 1 is a schematic diagram of the front structure of the present invention
  • Figure 2 is a schematic diagram of the front view of the track part of the present invention.
  • Figure 3 is a schematic side view of the structure of the present invention.
  • Figure 4 is a partial enlarged structural view of A in Figure 3;
  • a disassembly-free mobile formwork for continuous concrete beams comprising: two beams 4 horizontally arranged on the front and rear ends of the poured concrete box beam 3 along the left and right directions, and the left and right sides below the beam 4 are respectively along the vertical
  • a hanger 7 is installed in the vertical direction, and the lower end of the hanger 7 is connected with the upper end of the main beam 2 of the mobile formwork on the same side;
  • the longitudinal movement propulsion device is arranged above the concrete box girder 3 to drive the cross beam 4 to drive the moving form
  • the frame moves longitudinally forward along the length of the concrete box girder 3; and the hydraulic jack 10, which is arranged between the concrete box girder 3 and the cross beam 4 through a guiding device, and the hydraulic jack 10 drives the cross beam 4 to move up and down to change its relative concrete The height between the box beams 3.
  • the concrete box girder 3 is built between the two piers 1 using a hanging basket, and then a track 5 is laid on the concrete box girder 3, moving longitudinally
  • the propulsion device moves, and the driving beam 4 uses the hanger 7 to suspend the movable formwork behind the concrete box girder 3 to move forward along the length of the concrete box girder 3 until it moves to the front end of the concrete box girder 3.
  • the hydraulic jack 10 acts to drive the beam 4 to move up and down relative to the concrete box girder 3 to adjust the elevation.
  • the mobile formwork can be used to continue the construction of the standard span concrete box girder, which avoids moving the formwork.
  • the dismantling, transportation, and re-installation of the machine improves construction efficiency and reduces manufacturing costs.
  • the longitudinal movement propulsion device may have the following structure, which includes a longitudinal movement cylinder 6 mounted on the concrete box beam 3, the piston rod end of the longitudinal movement cylinder 6 is connected to the sliding seat 11, and the axis of the longitudinal movement cylinder 6 is connected to The length directions of the concrete box girder 3 are parallel.
  • the piston rod of the longitudinal movement cylinder 6 extends outwards, which pushes the sliding seat 11 to slide along the rail 5 to move forward longitudinally, so that the driving beam 4 drives the main beam 2 of the movable mold base to move forward through the hanger 7.
  • the guide device may have the following structure, which includes a plurality of guide rods II9 arranged around the hydraulic jack 10, the guide rod II9 is arranged vertically, and its lower end is fixed on the sliding seat 11, and a plurality of guide rods I8 are arranged around the outer side of the guide rod II9, The guide rod I8 is arranged vertically, and its upper end is fixed to the lower end of the beam 4.
  • the outer guide rod I8 plays a role of limiting and guiding the inner guide rod II9 to ensure that the hydraulic jack 10 moves in the vertical direction when it moves.
  • the sliding plate 12 arranged at the upper end of the rail 5.
  • the upper end surface of the sliding plate 12 is in sliding friction contact with the lower end surface of the sliding seat 11.
  • the sliding plate 12 is made of engineering plastic alloy material (MGE), and the engineering physical alloy material is wear-resistant, The feature of small friction coefficient can reduce the resistance when the sliding seat 11 moves, prevent vibration caused by excessive resistance, and effectively reduce the noise caused by friction. .
  • the sliding seat 11 further includes L-shaped gusset plates 13 respectively located on the left and right sides of the rail 5.
  • the upper end of the gusset plate 13 is connected and fixed to the bottom of the sliding seat 11, and the left and right sides of the rail 5 are respectively provided with flanges. The edge is inserted into the groove in the corresponding gusset 13 on the same side.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Bridges Or Land Bridges (AREA)

Abstract

一种过混凝土连续梁免拆装移动模架，当两个墩身之间的间距属于超过移动模架的长度时，利用挂篮在两个墩之间建造好混凝土箱梁，之后在混凝土箱梁上铺设轨道，纵移推进装置动作，驱动横梁利用吊架吊着位于混凝土箱梁后方的移动模架沿混凝土箱梁的长度方向向前方运动，直至其移动至混凝土箱梁的前端，实现了移动模架的倒运，移动模架移动到位后液压千斤顶动作驱动横梁相对混凝土箱梁上下移动，实现调整标高，之后即可以使用移动模架继续施工标准跨度的混凝土箱梁，避免了移动模架的拆除、运输、再安装，提高了施工效率，降低了制造成本。

Description

一种过混凝土连续梁免拆装移动模架 技术领域
本发明涉及桥梁施工技术领域，具体涉及一种过混凝土连续梁免拆装移动模架。
背景技术
移动模架造桥机是一种自带模板，利用承台或墩柱作为支承，对桥梁进行现场浇筑的施工机械，其具有施工质量好，施工操作简便，成本低廉等特性。在我国已广泛地被采用在公路桥、铁路桥的连续梁施工中。但是在施工现场中如果遇到横跨铁路、高架桥、高速公路的施工环境时该跨的箱梁长度会超过移动模架的长度，这一跨的箱梁往往采用挂篮施工的方式进行施工，但是移动模架需要进行拆除，拆除后利用交通工具运输至采用挂篮施工的箱梁的尾端，再利用吊装机械将移动模架进行吊运安装，整个过程会耗费大量时间，影响施工工期，同时，移动模架拆除后，其使用的高强度螺栓就无法再次安装使用了，需要更换新的高强度螺栓，从而也提高了制造成本。
发明内容
本发明为了克服以上技术的不足，提供了一种适用于超长箱梁施工环境下移动模架可以顺利纵移的过混凝土连续梁免拆装移动模架。
本发明克服其技术问题所采用的技术方案是：
一种过混凝土连续梁免拆装移动模架，包括：
两个横梁，分别沿左右方向水平设置于已浇筑的混凝土箱梁的前后两端，横梁的下方的左右两侧分别沿竖直方向安装有吊架，吊架下端与同侧的移动模架的主梁的上端相连接；
纵移推进装置，设置于混凝土箱梁的上方，用于驱动横梁带动移动模架沿混凝土箱梁的长度方向向前纵移；以及
液压千斤顶，液压千斤顶通过导向装置设置于混凝土箱梁与横梁之间，液压千斤顶驱动横梁上下移动，改变其相对混凝土箱梁之间的高度。
进一步的，上述纵移推进装置包括纵移油缸，纵移油缸安装于混凝土箱梁，纵移油缸的活塞杆头端与滑座相连接，纵移油缸的轴线与混凝土箱梁的长度方向相平行。
进一步的，上述导向装置包括环绕设置于液压千斤顶周围的若干导杆Ⅱ，所述导杆Ⅱ竖直设置，其下端固定于滑座上，导杆Ⅱ外侧环绕设置有若干导杆Ⅰ，导杆Ⅰ竖直设置，其上端固定于横梁的下端。
优选的，还包括设置于轨道上端的滑板，滑板上端面与滑座下端面滑动摩擦接触， 所述滑板采用工程塑料合金材料制成。
为了进一步提高可靠性，还包括分别位于轨道左右两侧的呈L形的扣板，所述扣板上端与滑座的底部连接固定，轨道的左右两侧分别设置有翼缘，轨道的翼缘插入同侧对应的扣板内的凹槽中。
本发明的有益效果是：当两个墩身之间的间距属于超过移动模架的长度时，利用挂篮在两个墩之间建造好混凝土箱梁，之后在混凝土箱梁上铺设轨道，纵移推进装置动作，驱动横梁利用吊架吊着位于混凝土箱梁后方的移动模架沿混凝土箱梁的长度方向向前方运动，直至其移动至混凝土箱梁的前端，实现了移动模架的倒运，移动模架移动到位后液压千斤顶动作驱动横梁相对混凝土箱梁上下移动，实现调整标高，之后即可以使用移动模架继续施工标准跨度的混凝土箱梁，避免了移动模架的拆除、运输、再安装，提高了施工效率，降低了制造成本。
附图说明
图1为本发明的主视结构示意图；
图2为本发明的轨道部位的主视结构示意图；
图3为本发明的侧视结构示意图；
图4为图3中的A局部放大结构图；
图中，1.墩身 2.主梁 3.混凝土箱梁 4.横梁 5.轨道 6.纵移油缸 7.吊架 8.导杆Ⅰ 9.导杆Ⅱ 10.液压千斤顶 11.滑座 12.滑板 13.扣板。
具体实施方式
下面结合附图1至附图4对本发明做进一步说明。
一种过混凝土连续梁免拆装移动模架，包括：两个横梁4，分别沿左右方向水平设置于已浇筑的混凝土箱梁3的前后两端，横梁4的下方的左右两侧分别沿竖直方向安装有吊架7，吊架7下端与同侧的移动模架的主梁2的上端相连接；纵移推进装置，设置于混凝土箱梁3的上方，用于驱动横梁4带动移动模架沿混凝土箱梁3的长度方向向前纵移；以及液压千斤顶10，液压千斤顶10通过导向装置设置于混凝土箱梁3与横梁4之间，液压千斤顶10驱动横梁4上下移动，改变其相对混凝土箱梁3之间的高度。当两个墩身1之间的间距属于超过移动模架的长度时，利用挂篮在两个墩身1之间建造好混凝土箱梁3，之后在混凝土箱梁3上铺设轨道5，纵移推进装置动作，驱动横梁4利用吊架7吊着位于混凝土箱梁3后方的移动模架沿混凝土箱梁3的长度方向向前方运动，直至其移动至混凝土箱梁3的前端，实现了移动模架的倒运，移动模架移动到位后液压千斤顶10动作驱动横梁4相对混凝土箱梁 3上下移动，实现调整标高，之后即可以使用移动模架继续施工标准跨度的混凝土箱梁，避免了移动模架的拆除、运输、再安装，提高了施工效率，降低了制造成本。
纵移推进装置可以为如下结构，其包括纵移油缸6，纵移油缸6安装于混凝土箱梁3，纵移油缸6的活塞杆头端与滑座11相连接，纵移油缸6的轴线与混凝土箱梁3的长度方向相平行。纵移油缸6的活塞杆向外伸出，其推动滑座11沿轨道5滑动向前纵移，实现驱动横梁4通过吊架7带动移动模架主梁2前移。
导向装置可以为如下结构，其包括环绕设置于液压千斤顶10周围的若干导杆Ⅱ9，导杆Ⅱ9竖直设置，其下端固定于滑座11上，导杆Ⅱ9外侧环绕设置有若干导杆Ⅰ8，导杆Ⅰ8竖直设置，其上端固定于横梁4的下端。外围的导杆Ⅰ8对内部的导杆Ⅱ9起到限位导向作用，确保液压千斤顶10动作时，沿竖直方向运动。
优选的，还包括设置于轨道5上端的滑板12，滑板12上端面与滑座11下端面滑动摩擦接触，滑板12采用工程塑料合金材料制成(MGE)，工程物理合金材料具有耐磨损、摩擦系数小的特点，可以使滑座11移动时降低阻力，防止因阻力过大导致的震动，同时有效降低了因摩擦导致的噪声。。
优选的，还包括分别位于轨道5左右两侧的呈L形的扣板13，扣板13上端与滑座11的底部连接固定，轨道5的左右两侧分别设置有翼缘，轨道5的翼缘插入同侧对应的扣板13内的凹槽中。通过设置两个扣板13扣在轨道5两端的翼缘处，可以有效防止滑座11滑动时从轨道5上掉落，提高了设备运行的可靠性。

Claims (5)

  1. 一种过混凝土连续梁免拆装移动模架，其特征在于，包括：
    两个横梁(4)，分别沿左右方向水平设置于已浇筑的混凝土箱梁(3)的前后两端，横梁(4)的下方的左右两侧分别沿竖直方向安装有吊架(7)，吊架(7)下端与同侧的移动模架的主梁(2)的上端相连接；
    纵移推进装置，设置于混凝土箱梁(3)的上方，用于驱动横梁(4)带动移动模架沿混凝土箱梁(3)的长度方向向前纵移；以及
    液压千斤顶(10)，液压千斤顶(10)通过导向装置设置于混凝土箱梁(3)与横梁(4)之间，液压千斤顶(10)驱动横梁(4)上下移动，改变其相对混凝土箱梁(3)之间的高度。
  2. 根据权利要求1所述的过混凝土连续梁免拆装移动模架，其特征在于：所述纵移推进装置包括纵移油缸(6)，纵移油缸(6)安装于混凝土箱梁(3)，纵移油缸(6)的活塞杆头端与滑座(11)相连接，纵移油缸(6)的轴线与混凝土箱梁(3)的长度方向相平行。
  3. 根据权利要求1所述的过混凝土连续梁免拆装移动模架，其特征在于：所述导向装置包括环绕设置于液压千斤顶(10)周围的若干导杆Ⅱ(9)，所述导杆Ⅱ(9)竖直设置，其下端固定于滑座(11)上，导杆Ⅱ(9)外侧环绕设置有若干导杆Ⅰ(8)，导杆Ⅰ(8)竖直设置，其上端固定于横梁(4)的下端。
  4. 根据权利要求2所述的过混凝土连续梁免拆装移动模架，其特征在于：还包括设置于轨道(5)上端的滑板(12)，滑板(12)上端面与滑座(11)下端面滑动摩擦接触，所述滑板(12)采用工程塑料合金材料制成。
  5. 根据权利要求2所述的过混凝土连续梁免拆装移动模架，其特征在于：还包括分别位于轨道(5)左右两侧的呈L形的扣板(13)，所述扣板(13)上端与滑座(11)的底部连接固定，轨道(5)的左右两侧分别设置有翼缘，轨道(5)的翼缘插入同侧对应的扣板(13)内的凹槽中。
PCT/CN2019/104709 2019-08-05 2019-09-06 一种过混凝土连续梁免拆装移动模架 WO2021022608A1 (zh)

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Cited By (11)

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CN113585103B (zh) * 2021-08-30 2022-06-24 合肥工业大学 一种基于啮合传动的挂篮桁架及轨道驱动行走系统
CN114102841A (zh) * 2021-12-13 2022-03-01 上海申邦市政钢结构厂 一种箱梁模芯的开模和闭模自动控制系统及其控制方法
CN114541260A (zh) * 2021-12-15 2022-05-27 江西省交通工程集团有限公司 薄壁墩液压爬模施工方法
CN114541260B (zh) * 2021-12-15 2024-01-19 江西省交通工程集团有限公司 薄壁墩液压爬模施工方法
CN114481862A (zh) * 2022-01-06 2022-05-13 中国五冶集团有限公司 移动式桁架装置及施工工艺
CN114892523A (zh) * 2022-01-07 2022-08-12 中铁十六局集团第五工程有限公司 一种桥梁边跨合拢施工方法
CN114541267A (zh) * 2022-03-04 2022-05-27 中铁一局集团建筑安装工程有限公司 一种自动卸梁的架桥机
CN114541267B (zh) * 2022-03-04 2024-04-19 中铁一局集团建筑安装工程有限公司 一种自动卸梁的架桥机
CN114561881A (zh) * 2022-03-17 2022-05-31 浙江科技学院 一种适用于软土地基桥梁的纵向纠偏复位方法
CN114561881B (zh) * 2022-03-17 2024-05-28 浙江科技学院 一种适用于软土地基桥梁的纵向纠偏复位方法
CN114941437A (zh) * 2022-06-16 2022-08-26 中国建筑土木建设有限公司 公路箱梁用的混凝土振捣设备及其振捣方法
CN115262423A (zh) * 2022-08-03 2022-11-01 中国十九冶集团有限公司 桥梁挂篮施工方法
CN116750660A (zh) * 2023-08-23 2023-09-15 山东兴源机械有限公司 一种提梁机及其抓取提升装置
CN116750660B (zh) * 2023-08-23 2023-11-07 山东兴源机械有限公司 一种提梁机及其抓取提升装置

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