CN108590147A - Assembling the shaped steel suspension scaffolding and its construction method - Google Patents
Assembling the shaped steel suspension scaffolding and its construction method Download PDFInfo
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- CN108590147A CN108590147A CN201810588066.5A CN201810588066A CN108590147A CN 108590147 A CN108590147 A CN 108590147A CN 201810588066 A CN201810588066 A CN 201810588066A CN 108590147 A CN108590147 A CN 108590147A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 112
- 239000010959 steel Substances 0.000 title claims abstract description 112
- 238000010276 construction Methods 0.000 title claims abstract description 20
- 239000000725 suspension Substances 0.000 title 1
- 230000000712 assembly Effects 0.000 claims description 4
- 238000000429 assembly Methods 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- 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
- E04G3/00—Scaffolds essentially supported by building constructions, e.g. adjustable in height
- E04G3/20—Scaffolds essentially supported by building constructions, e.g. adjustable in height supported by walls
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- 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
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
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- 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
- E04G5/00—Component parts or accessories for scaffolds
- E04G5/04—Means for fastening, supporting, or bracing scaffolds on or against building constructions
- E04G5/046—Means for fastening, supporting, or bracing scaffolds on or against building constructions for fastening scaffoldings on walls
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Movable Scaffolding (AREA)
Abstract
本发明涉及一种装配化型钢悬挑脚手架及其施工方法，该悬挑脚手架包括悬挑型钢部分和拉杆组件，悬挑型钢部分包括工字钢、端板、槽钢调节梁，槽钢调节梁由两根平行的槽钢构成，且两根槽钢分别与工字钢的工字型两侧凹口呈滑动配合，两根槽钢各一端均焊接固定于端板，工字钢的上翼缘板、下翼缘板、腹板与槽钢调节梁的上翼缘板、下翼缘板、腹板之间分别设有对位的螺栓固定孔和螺栓孔，并通过螺栓、螺母锁紧固定。施工时，将所述端板与建筑结构之间通过对拉螺栓、螺母锁紧固定，将拉杆组件一端与工字钢上翼缘板连接，另一端与建筑结构锁紧固定，最后将脚手架固定于工字钢，即完成施工，施工过程简单，脚手架悬挑长度可调，适用范围广。
The invention relates to an assembled shaped steel cantilevered scaffold and a construction method thereof. The cantilevered scaffold includes a cantilevered steel part and a tie rod assembly. The cantilevered steel part includes I-beams, end plates, channel steel adjustment beams, and channel steel adjustment beams. It is composed of two parallel channel steels, and the two channel steels are slidingly matched with the notches on both sides of the I-shaped steel. Each end of the two channel steels is welded and fixed to the end plate. The upper wing of the I-shaped steel Between the flange plate, the lower flange plate, the web plate and the upper flange plate, the lower flange plate, and the web plate of the channel steel adjusting beam, there are corresponding bolt fixing holes and bolt holes respectively, and are locked by bolts and nuts fixed. During construction, the end plate and the building structure are locked and fixed by means of pull bolts and nuts, one end of the tie rod assembly is connected to the upper flange plate of the I-beam, the other end is locked and fixed to the building structure, and finally the scaffolding is fixed For I-beams, the construction is completed, the construction process is simple, the length of the scaffold cantilever is adjustable, and the scope of application is wide.
Description
技术领域technical field
本发明涉及建筑领域的脚手架，是一种装配化型钢悬挑脚手架及其施工方法。The invention relates to a scaffold in the construction field, and relates to an assembled section steel cantilevered scaffold and a construction method thereof.
背景技术Background technique
在多层和高层建筑工程中，悬挑脚手架是一项必不可少的安全防护措施和操作台，直接影响工人的人身安全，以及工程施工质量、效率。传统的型钢悬挑脚手架都是通过U形拉环或锚固螺栓将型钢锚固在楼板上，且依据规范锚固长度不得小于1.25倍的悬挑长度，型钢使用总量大。在悬挑型钢铺设层，由于悬挑型钢对使用空间的需求较大，建筑物内部空间可能无法直接满足铺设要求，需要额外预留孔洞或采取其他加强锚固措施保证锚固的安全性，从而导致铺设层施工复杂，而且楼面存在工字型钢会影响后续内墙和楼面的施工。悬挑型钢由于是从建筑内部向外延伸悬挑，导致必须在墙体上预留孔洞，施工完毕后悬挑型钢拆卸时，都是将型钢由外向内抽到建筑物内部，然后统一吊装拆卸。如果建筑物内部空间不足，则需要将型钢切断，不仅分段拆运造成大量损耗，且导致型钢重复使用率低。悬挑型钢拆卸后，会在建筑物外部墙体上留下较大孔洞，即使通过填补使孔洞消失，但由于填补材料和孔周材料的时间及性质差异，填补孔处会存在较大的渗漏隐患。除此以外，现有悬挑脚手架悬挑长度较难调节。为此，有待对现有的悬挑脚手架施工结构进行改进。In multi-storey and high-rise construction projects, cantilevered scaffolding is an essential safety protection measure and operating platform, which directly affects the personal safety of workers, as well as the quality and efficiency of project construction. The traditional section steel cantilevered scaffolds anchor the section steel on the floor through U-shaped pull rings or anchor bolts, and according to the specification, the anchorage length should not be less than 1.25 times the cantilever length, and the total amount of section steel used is large. In the cantilevered steel laying layer, due to the large demand for the use of space for the cantilevered steel, the interior space of the building may not directly meet the laying requirements, and it is necessary to reserve additional holes or take other strengthening anchorage measures to ensure the safety of the anchorage, resulting in laying The construction of the first floor is complicated, and the existence of I-shaped steel on the floor will affect the subsequent construction of the inner wall and floor. Since the cantilevered steel is extended from the inside of the building, holes must be reserved on the wall. After the construction is completed, when the cantilevered steel is disassembled, the steel is drawn from the outside to the inside of the building, and then hoisted and disassembled uniformly. . If the internal space of the building is insufficient, the section steel needs to be cut off, which not only causes a lot of loss due to section dismantling, but also leads to a low reuse rate of section steel. After the cantilevered steel is disassembled, a large hole will be left on the external wall of the building. Even if the hole disappears through filling, due to the difference in time and properties between the filling material and the material around the hole, there will be a large seepage at the filling hole. leakage hazard. In addition, the cantilevered length of the existing cantilevered scaffolding is difficult to adjust. For this reason, the existing cantilevered scaffold construction structure needs to be improved.
发明内容Contents of the invention
为克服上述不足，本发明的目的是向本领域提供一种装配化型钢悬挑脚手架及其施工方法，使其解决现有悬挑脚手架拆装施工较为繁琐、不便，容易对建筑墙体或梁造成较大破损，修补后存在较大渗漏隐患，且悬挑脚手架悬挑长度不可调，型材重复利用率不高的技术问题。其目的是通过如下技术方案实现的。In order to overcome the above-mentioned deficiencies, the object of the present invention is to provide an assembled section steel cantilevered scaffold and its construction method to the field, so that it can solve the problem that the existing cantilevered scaffold is complicated and inconvenient to disassemble and construct, and it is easy to damage the building walls or beams. Large damage is caused, there is a large hidden danger of leakage after repair, and the cantilever length of the cantilevered scaffolding cannot be adjusted, and the technical problem of low reuse rate of profiles. Its purpose is achieved through the following technical solutions.
一种装配化型钢悬挑脚手架，该悬挑脚手架包括与建筑结构固定的悬挑型钢部分和拉杆组件，悬挑型钢部分包括用于支撑连接脚手架立杆的工字钢，工字钢上翼缘板设有与拉杆组件一端连接的吊耳板，拉杆组件另一端与建筑结构固定连接。其结构要点在于所述悬挑型钢部分还包括端板、槽钢调节梁，槽钢调节梁由两根平行的槽钢构成，且两根槽钢分别与所述工字钢的工字型两侧凹口呈滑动配合，槽钢调节梁的两根槽钢各一端均焊接固定于所述端板，端板与所述建筑结构之间通过对拉螺栓、螺母固定，槽钢调节梁的两根槽钢的上翼缘板、下翼缘板和腹板均设有沿槽钢调节梁长度方向均匀间隔分布的螺栓固定孔，所述工字钢的上翼缘板、下翼缘板、腹板设有相对槽钢调节梁滑动时与上述螺栓固定孔对位的螺栓孔，工字钢的上翼缘板、下翼缘板、腹板与槽钢调节梁的上翼缘板、下翼缘板、腹板之间通过螺栓、螺母固定。An assembled shaped steel cantilevered scaffold, the cantilevered scaffold includes a cantilevered steel part fixed to the building structure and a tie rod assembly, the cantilevered steel part includes an I-shaped steel for supporting and connecting the scaffold pole, and the upper flange of the I-shaped steel The plate is provided with a lug plate connected to one end of the pull rod assembly, and the other end of the pull rod assembly is fixedly connected to the building structure. The main point of its structure is that the cantilevered steel part also includes an end plate and a channel steel adjusting beam. The side notches are in a sliding fit, and each end of the two channel steels of the channel steel adjusting beam is welded and fixed to the end plate. The upper flange plate, the lower flange plate and the web plate of the root channel steel are all provided with bolt fixing holes evenly spaced along the length direction of the channel steel adjusting beam, and the upper flange plate, lower flange plate, The web is provided with bolt holes aligned with the bolt fixing holes when sliding relative to the channel steel adjusting beam, and the upper and lower flange plates of the I-beam and the upper and lower The flange plate and the web are fixed by bolts and nuts.
上述装配化型钢悬挑脚手架中，所述工字钢的上翼缘板沿长度方向设有两个吊耳板，两个吊耳板均通过拉杆组件与建筑结构连接，且各拉杆组件与建筑结构连接的锚固点相对于所述工字钢端板与建筑结构连接的锚固点不在同一竖向平面内。通过该结构，使工字钢支撑连接脚手架时，拉杆组件不会产生干涉。In the above assembled section steel cantilevered scaffolding, the upper flange plate of the I-beam is provided with two lug plates along the length direction, and the two lug plates are connected with the building structure through tie rod assemblies, and each tie rod assembly is connected with the building structure. The anchor point for structural connection is not in the same vertical plane as the anchor point for the connection between the I-beam end plate and the building structure. Through this structure, when the I-shaped steel support is connected to the scaffold, the tie rod assembly will not interfere.
上述装配化型钢悬挑脚手架中，所述拉杆组件包括附墙角度调节件、上拉杆、花篮螺栓和下拉杆，附墙角度调节件与建筑结构之间通过对拉螺栓、螺母固定连接，附墙角度调节件与上拉杆一端之间通过螺栓、螺母锁紧连接，上拉杆另一端与花篮螺栓一端螺纹连接，花篮螺栓另一端与下拉杆一端螺纹连接，下拉杆另一端与所述吊耳板之间通过螺栓、螺母锁紧连接。In the above-mentioned assembled steel cantilevered scaffolding, the tie rod assembly includes a wall-attached angle adjustment member, an upper pull rod, a basket bolt and a lower rod, and the wall-attached angle adjuster and the building structure are fixedly connected by pull bolts and nuts, and the attached wall The angle adjustment part is connected to one end of the upper tie rod through bolts and nuts, the other end of the upper tie rod is threaded to one end of the turnbuckle bolt, the other end of the turnbuckle bolt is threaded to one end of the lower rod, and the other end of the lower rod is connected to the lug plate. The connections are locked by bolts and nuts.
上述装配化型钢悬挑脚手架中，所述工字钢的上翼缘板沿长度方向设有用于定位支撑连接脚手架立杆的定位钢筋，且所述拉杆组件连接所述吊耳板时，拉杆组件与定位钢筋之间错位设置。In the above-mentioned assembled section steel cantilevered scaffold, the upper flange plate of the I-beam is provided along the length direction with a positioning steel bar for positioning, supporting and connecting the scaffold pole, and when the tie rod assembly is connected to the lug plate, the tie rod assembly Misalignment setting between positioning reinforcement.
该装配化型钢悬挑脚手架的施工方法为：首先将所述槽钢调节梁端部的端板与所述建筑结构之间通过对拉螺栓、螺母锁紧固定，并保持悬挑脚手架中的槽钢调节梁处于同一水平面内，然后将所述工字钢滑入槽钢调节梁内，并调节工字钢相对于槽钢调节梁的位置，调节完成后，将工字钢的上翼缘板、下翼缘板、腹板与槽钢调节梁的上翼缘板、下翼缘板、腹板之间通过螺栓、螺母锁紧固定，即完成工字钢与槽钢调节梁之间的固定；接下来，将拉杆组件一端与工字钢上的吊耳板通过螺栓、螺母锁紧连接，将拉杆组件另一端与建筑结构之间通过对拉螺栓、螺母锁紧固定，调整花篮螺栓，保持拉杆组件对工字钢的拉紧，即完成该悬挑型钢部分与建筑结构之间的连接；最后将脚手架立杆与工字钢连接定位，即完成该悬挑脚手架的安装施工。The construction method of the assembled section steel cantilevered scaffolding is as follows: first, the end plate at the end of the channel steel adjusting beam and the building structure are locked and fixed by pull bolts and nuts, and the groove in the cantilevered scaffolding is kept The steel adjusting beam is in the same horizontal plane, then slide the I-beam into the channel steel adjusting beam, and adjust the position of the I-beam relative to the channel steel adjusting beam. After the adjustment is completed, place the upper flange plate of the I-beam , the lower flange plate, web plate and the upper flange plate, lower flange plate, and web plate of the channel steel adjusting beam are locked and fixed by bolts and nuts, that is, the fixing between the I-beam and the channel steel adjusting beam is completed ; Next, connect one end of the tie rod assembly with the lug plate on the I-beam through bolts and nuts, lock and fix the other end of the tie rod assembly with the building structure through pull bolts and nuts, adjust the turnbuckle bolts, and keep The tensioning of the I-beam by the tie rod assembly is to complete the connection between the cantilevered steel part and the building structure; finally, the installation and construction of the cantilevered scaffold is completed by connecting and positioning the scaffold pole with the I-beam.
本发明通过对拉螺栓与建筑结构连接，对建筑结构破坏较小，容易修补，有效保证建筑外墙的抗渗漏性。同时，工字钢与槽钢调节梁设计为相对滑动，从而方便悬挑脚手架调节所需的悬挑长度，适用范围更广，且能够重复使用，减少型材浪费。其适合作为各类建筑的悬挑脚手架使用，或同类施工方法的改进。The invention is connected with the building structure through the pull bolts, which has less damage to the building structure, is easy to repair, and effectively ensures the leakage resistance of the building outer wall. At the same time, the I-beam and the channel steel adjusting beam are designed to slide relative to each other, so as to facilitate the adjustment of the required cantilever length of the cantilevered scaffolding, which has a wider application range and can be reused to reduce the waste of profiles. It is suitable for use as a cantilevered scaffold of various buildings, or as an improvement of similar construction methods.
附图说明Description of drawings
图1是本发明的立体结构示意图。Fig. 1 is a schematic diagram of the three-dimensional structure of the present invention.
图2是本发明的工字钢与槽钢调节梁配合的剖视结构示意图。Fig. 2 is a cross-sectional schematic diagram of the cooperation between the I-beam and the channel steel adjusting beam of the present invention.
图中序号及名称为：1、建筑结构，2、端板，3、槽钢调节梁，301、螺栓固定孔，4、工字钢，401、吊耳板，402、螺栓孔，403、定位钢筋，5、附墙角度调节件，6、上拉杆，7、花篮螺栓，8、下拉杆。The serial numbers and names in the figure are: 1. Building structure, 2. End plate, 3. Channel steel adjusting beam, 301. Bolt fixing hole, 4. I-beam, 401. Lug plate, 402. Bolt hole, 403. Positioning Steel bar, 5, angle adjustment piece attached to the wall, 6, upper pull rod, 7, turnbuckle bolt, 8, lower rod.
具体实施方式Detailed ways
现结合附图，对本发明作进一步描述。Now in conjunction with accompanying drawing, the present invention will be further described.
如图1、图2所示，该装配化型钢悬挑脚手架包括悬挑型钢部分和拉杆组件，悬挑型钢部分设有至少两组，各组悬挑型钢部分包括端板2、槽钢调节梁3和工字钢4，工字钢上翼缘板焊接设有与拉杆组件连接的吊耳板401和用于支撑连接脚手架的定位钢筋403，各工字钢上翼缘板均设有一对间隔分布的吊耳板和一对间隔分布的定位钢筋。槽钢调节梁由两根平行的槽钢构成，两根槽钢的槽口向外，且两根槽钢之间滑动设置上述工字钢，即两根槽钢分别与工字钢的工字型两侧凹口呈滑动配合，槽钢调节梁的两根槽钢各一端均焊接固定于端板，端板设有与建筑结构1连接的栓孔。槽钢调节梁的两根槽钢的上翼缘板、下翼缘板和腹板均设有沿槽钢调节梁长度方向均匀间隔分布的螺栓固定孔301，工字钢的上翼缘板、下翼缘板、腹板设有相对槽钢调节梁滑动时与上述螺栓固定孔对位的螺栓孔402，工字钢的上翼缘板、下翼缘板、腹板与槽钢调节梁的上翼缘板、下翼缘板、腹板之间通过螺栓、螺母、垫片锁紧固定。As shown in Figures 1 and 2, the assembled steel cantilevered scaffold includes cantilevered steel parts and tie rod assemblies. There are at least two groups of cantilevered steel parts, and each group of cantilevered steel parts includes end plates 2 and channel steel adjustment beams. 3 and I-beam 4, the upper flange plate of I-beam is welded with lug plate 401 connected with tie rod assembly and positioning steel bar 403 for supporting and connecting scaffolding, each I-beam upper flange plate is provided with a pair of spacers Distributed lug plates and a pair of spaced positioning reinforcement. The channel steel adjusting beam is composed of two parallel channel steels, the notches of the two channel steels are facing outwards, and the above-mentioned I-beams are slid between the two channel steels, that is, the two channel steels are respectively connected with the I-beams of the I-beams. The notches on both sides of the profile are in a sliding fit, and each end of the two channel steels of the channel steel adjusting beam is welded and fixed to the end plate, and the end plate is provided with a bolt hole connected to the building structure 1. The upper flange plate, the lower flange plate and the web plate of the two channel steels of the channel steel adjusting beam are all provided with bolt fixing holes 301 evenly spaced along the length direction of the channel steel adjusting beam, and the upper flange plate of the I-beam, The lower flange plate and the web are provided with bolt holes 402 aligned with the bolt fixing holes when sliding relative to the channel steel adjusting beam, and the upper flange plate, lower flange plate, web of the I-beam and the channel steel adjusting beam The upper flange plate, the lower flange plate, and the web are locked and fixed by bolts, nuts, and gaskets.
上述拉杆组件包括附墙角度调节件5、上拉杆6、花篮螺栓7和下拉杆8，各工字钢4对应两组拉杆组件，上拉杆一端和下拉杆一端均集成设有连接板，各拉杆组件中的附墙角度调节件与上拉杆一端的连接板之间通过螺栓、螺母锁紧固定，上拉杆另一端与花篮螺栓一端螺纹连接，花篮螺栓另一端与下拉杆一端螺纹连接，下拉杆另一端的连接板与工字钢上的吊耳板401通过螺栓、螺母锁紧固定。The above-mentioned tie rod assembly includes the wall-attached angle adjustment member 5, the upper tie rod 6, the turnbuckle bolt 7 and the lower rod 8. Each I-beam 4 corresponds to two sets of tie rod assemblies. One end of the upper tie rod and one end of the lower rod are integrated with a connecting plate, and each tie rod The wall-attached angle adjustment part in the assembly and the connecting plate at one end of the upper tie rod are locked and fixed by bolts and nuts, the other end of the upper tie rod is threaded with one end of the turnbuckle bolt, the other end of the turnbuckle bolt is threaded with one end of the lower rod, and the other end of the lower rod is threaded. The connecting plate at one end and the lug plate 401 on the I-beam are locked and fixed by bolts and nuts.
该装配化型钢悬挑脚手架与建筑结构1连接时，首先将槽钢调节梁3端部的端板2与建筑结构1之间通过对拉螺栓、螺母、垫片锁紧固定，确保各槽钢调节梁处于同一水平面内，然后将工字钢4滑入槽钢调节梁内，并调节工字钢相对于槽钢调节梁的位置，使工字钢达到所需的悬挑长度；调节完成后，将工字钢的上翼缘板、下翼缘板、腹板与槽钢调节梁的上翼缘板、下翼缘板、腹板之间通过螺栓、螺母、垫片锁紧固定，即完成工字钢与槽钢调节梁之间的固定。接下来，固定拉杆组件，将拉杆组件的下拉杆8与工字钢上的吊耳板401通过螺栓、螺母、垫片锁紧连接，将拉杆组件的附墙角度连接件5与建筑结构之间通过对拉螺栓、螺母、垫片锁紧固定，调整花篮螺栓，使上拉杆、下拉杆保持拉紧状态，即完成该悬挑型钢部分与建筑结构之间的连接；最后将脚手架立杆与工字钢上的定位钢筋403连接定位，即完成该悬挑脚手架的安装施工。When the assembled section steel cantilevered scaffold is connected to the building structure 1, firstly, the end plate 2 at the end of the channel steel adjusting beam 3 and the building structure 1 are locked and fixed by pulling bolts, nuts, and gaskets to ensure that each channel steel The adjusting beam is in the same horizontal plane, then slide the I-beam 4 into the channel steel adjusting beam, and adjust the position of the I-beam relative to the channel steel adjusting beam, so that the I-beam reaches the required cantilever length; after the adjustment is completed , the upper flange plate, lower flange plate, and web of the I-beam and the upper flange plate, lower flange plate, and web of the channel steel adjusting beam are locked and fixed by bolts, nuts, and gaskets, that is Complete the fixing between the I-beam and the channel steel adjusting beam. Next, the pull rod assembly is fixed, the pull rod 8 of the pull rod assembly is connected to the lug plate 401 on the I-beam through bolts, nuts, and gaskets, and the wall-attached angle connector 5 of the pull rod assembly is connected to the building structure. By locking and fixing the bolts, nuts and gaskets, adjusting the turnbuckle bolts, keeping the upper and lower rods in a tight state, the connection between the cantilevered steel part and the building structure is completed; finally, the scaffolding pole and the work The positioning reinforcing bar 403 on the cross-section steel is connected and positioned, and the installation and construction of the cantilevered scaffold is completed.
以上内容旨在说明本发明的技术手段，并非限制本发明的技术范围。本领域技术人员结合现有公知常识对本发明做显而易见的改进，亦落入本发明权利要求的保护范围之内。The above content is intended to illustrate the technical means of the present invention, but not to limit the technical scope of the present invention. Obvious improvements to the present invention made by those skilled in the art in combination with the existing common knowledge also fall within the protection scope of the claims of the present invention.
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| CN110656762A (en) * | 2019-09-25 | 2020-01-07 | 宁波建工工程集团有限公司 | Three-section type pull rod overhanging outer scaffold and construction method thereof |
| CN111270850A (en) * | 2020-03-20 | 2020-06-12 | 中建三局集团有限公司 | Novel fast-assembling exempts from to weld girder steel of encorbelmenting fixed device |
| CN111660022A (en) * | 2019-03-06 | 2020-09-15 | 金川集团工程建设有限公司 | Flatness control device and method for machining steel roof beam flange plate |
| CN114892981A (en) * | 2022-05-29 | 2022-08-12 | 中国五冶集团有限公司 | A method for setting double tie rods of super-long cantilever structural steel main beam |
| CN117266538A (en) * | 2023-09-25 | 2023-12-22 | 上海市浦东新区建设(集团)有限公司 | A kind of assembled cantilever component for external scaffolding construction |
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Application publication date: 20180928 |