High-strength light honeycomb truss type support system
Technical Field
The invention relates to the technical field of building supports, in particular to a high-strength light honeycomb truss type support system.
Background
In recent years, with the high-speed development of economy, the pace of urban construction in China is increasingly accelerated, the golden period of rapid development of the construction industry is reached, and infrastructure construction is always the most vigorous and large-scale basic industry in China and is also a key link for accelerating the modernization process of China and stably promoting novel urbanization. The annual investment sum of the infrastructure in China reaches billions of yuan, and the investment acceleration is kept above 10%.
The scaffold and the formwork support are used as various supports constructed for workers in a construction site, are widely applied to the construction fields of high-rise buildings, bridges, water conservancy, mines, municipal works and the like, the connecting piece is used for connecting all main supporting rods of the support in the transverse direction, the longitudinal direction and even the oblique direction, the scaffold and the formwork support in the building engineering are also changed into a steel pipe structure from the prior wooden material structure, the stability of the support system is greatly improved compared with the prior art, but because the prior related technology has certain defects, in the actual construction process, the instability of the bracket system often occurs, particularly in the construction process of high-rise and super high-rise buildings, once the collapse accident of the bracket system occurs, the weight loss is large in both the life safety and the economic aspect of personnel, therefore, the method has important significance for the research work of the stability of the steel pipe bracket system in the constructional engineering.
One of the technical defects is that the support is formed by connecting and splicing single vertical rods into a whole, particularly a bowl-shaped buckle type support, the stability of the whole support system is weak, a great number of collapse accidents are generated, and great life and property losses are caused.
The reason to the occurence of failure discovers after studying, and the reason that most accidents caused is that the support body is whole unstability and leads to the collapse in succession of support system, and current support system utilizes the lock joint to connect adjacent two pole settings and forms the support system that has evenly distributed, mainly increases holistic stability through the connection structure who changes pole setting and lock joint, and the bearing capacity of single pole setting is limited, has the problem that overall structure stability is low.
Disclosure of Invention
The technical problem to be solved by the invention is as follows:
the bracket system aims to solve the problems that the existing fastener type, bowl-buckle type and disc-buckle type bracket systems increase the overall stability by changing the connecting structure of the vertical rod and the buckle connector, but have lower stability of the overall structure due to limited bearing capacity of a single vertical rod.
The invention adopts the technical scheme for solving the technical problems that:
the invention provides a high-strength light honeycomb truss type support system, which comprises a plurality of horizontal rods and a plurality of truss type upright rod assemblies; each truss type upright rod assembly comprises three truss upright rods and at least one connecting disc used for binding the three truss upright rods together, each connecting disc is provided with an upright rod socket which is distributed in a triangular shape, and each truss upright rod correspondingly penetrates through one upright rod socket; connecting discs on two adjacent truss type vertical rod assemblies are connected through a horizontal rod, each connecting disc is used for connecting three horizontal rods, six truss type vertical rod assemblies and the corresponding horizontal rods form hexagonal prism-shaped support system units, and the hexagonal prism-shaped support system units extend outwards to form a honeycomb truss type support system.
Further, the connection pad is provided with a node socket, the node socket passes through the bolt connection with the horizon bar for connect two adjacent truss-like pole setting subassemblies through the horizon bar.
Further, set up a node socket between two pole setting sockets, the horizon bar both ends all are provided with the lock joint, the lock joint is U type structure, the lock joint is provided with the bar socket, the lock joint is on the connection pad, the bolt runs through bar socket and node socket in proper order for fix the horizon bar on the connection pad.
Further, the length of bar socket is less than the length of bolt upper end, the width of bar socket is less than bolt upper end thickness, bolt lower extreme length is less than the length of bar socket, bolt lower extreme thickness is less than the width of bar socket.
Furthermore, the truss vertical rod penetrates through and is welded with the connecting disc.
Further, every truss-like pole setting subassembly bottom all is provided with the collet, the collet passes through threaded connection with every truss pole setting.
Further, every truss-like pole setting subassembly top all is provided with the top and holds in the palm, the top holds in the palm and passes through threaded connection with every truss pole setting.
Further, the truss vertical rod is a Q460 steel truss vertical rod, and the horizontal rod is a 7075 aluminum alloy horizontal rod.
Furthermore, each truss type vertical rod assembly is connected through at least two connecting discs, an inclined rod is arranged between two adjacent sets of truss type vertical rod assemblies in each hexagonal prism-shaped support system unit, and two ends of the inclined rod are respectively connected with the connecting discs on the two adjacent sets of truss type vertical rod assemblies.
And one end of the wind cable is connected with the connecting disc at one side of each truss type vertical rod assembly close to the top support, and the other end of the wind cable is used for being connected with the ground.
Compared with the prior art, the invention has the beneficial effects that:
the invention relates to a high-strength light honeycomb truss type support system which comprises a plurality of groups of truss type upright stanchion assemblies connected through horizontal rods, wherein each truss type upright stanchion assembly is formed by connecting three truss upright stanchions through at least one connecting disc, and upright stanchion sockets which are arranged through the connecting discs and are distributed in a triangular shape are connected with the truss upright stanchions, so that the traditional mode that the truss type upright stanchions are connected through the horizontal rods instead of being connected through the horizontal rods, the bearing capacity of the core of the truss type upright stanchion assembly and the stability of the whole truss system can be improved through the arrangement of a triangular stable structure of the truss upright stanchions and the arrangement of a honeycomb integral structure, and the collapse accident caused by the integral instability of a support body due to accidental and accidental load increase in the using process can be prevented.
The traditional bowl buckle type bracket system, the traditional disc buckle type bracket system and the invention are subjected to mechanical property finite element analysis and comparison, the bracket bodies are uniformly arranged to have 4 spans, 4 spans and 3 layers at high, the bearing capacity of the traditional bowl buckle type bracket system is 1kN multiplied by 25 multiplied by 34.38 which is 859.5kN, namely 85.95t, the bearing capacity of the traditional disc buckle type bracket system is 1kN multiplied by 25 multiplied by 48.39 which is 1209.75kN, namely 121.0t, the bearing capacity of the invention is 1kN multiplied by 24 multiplied by 189.4 which is 4545.60kN, namely 454.6t, the bearing area is 2.3 times that of the bowl buckle type template bracket and 1.86 times that of the disc buckle type template bracket, and the bearing capacity is 5.3 times that of the bowl buckle type template bracket and 3.8 times that of the disc buckle type template bracket; the advantages of load bearing capacity and stability are more apparent when the load bearing area of the present invention is increased.
The honeycomb truss type support frame is relatively simple in structure, the connection disc and the horizontal rods can be used for assembling to complete a honeycomb truss type support frame system, each truss type vertical rod assembly can be transported to a construction site after being installed, the assembly is carried out through the horizontal rods, the rapid installation and disassembly are facilitated, the operation steps of the construction site are simplified, the time is saved, and compared with the traditional formwork support frame, the honeycomb truss type support frame is dense in erection, and the honeycomb truss type support frame is light in weight and high in strength, has high stability and large erection space, saves a large amount of materials, and has popularization value.
Drawings
FIG. 1 is a first top view of a connecting disc of a high-strength light honeycomb truss-like support system according to the present invention;
FIG. 2 is a second connecting disc top view of the high-strength light honeycomb truss-like support system of the present invention;
FIG. 3 is a schematic perspective view of a truss type upright component of a high strength light cellular truss type support system according to the present invention;
FIG. 4 is an enlarged schematic view of portion A of FIG. 3;
FIG. 5 is a side view of a truss type riser assembly of a high strength lightweight cellular truss type scaffolding system of the present invention;
FIG. 6 is a first top view of a high strength lightweight cellular truss-like scaffolding system in accordance with the present invention;
FIG. 7 is a second top view of a high strength lightweight cellular truss-like scaffolding system in accordance with the present invention;
FIG. 8 is a third top view of a high strength lightweight cellular truss-like scaffolding system of the present invention;
FIG. 9 is a schematic perspective view of a high strength light cellular truss-like scaffolding system according to the present invention;
FIG. 10 is a schematic perspective view of a high strength lightweight cellular truss-like scaffolding system according to the present invention;
FIG. 11 is a finite element analysis diagram of mechanical properties of a conventional bowl-snap support system;
FIG. 12 is a finite element analysis diagram of mechanical properties of a conventional disk button type stent system;
fig. 13 is a finite element analysis diagram of the mechanical properties of the high-strength light-weight honeycomb truss-like stent system of the present invention.
Description of reference numerals:
1-connecting disc, 2-vertical rod socket, 3-node socket, 4-horizontal rod, 5-truss vertical rod, 6-bolt, 8-diagonal rod, 9-wind cable, 41-buckle joint, 42-strip socket, 61-top support and 62-bottom support.
Detailed Description
In the description of the present invention, it should be noted that terms such as "upper", "lower", "front", "rear", "left", "right", and the like in the embodiments indicate terms of orientation, and are used only for simplifying the positional relationship based on the drawings of the specification, and do not represent that the elements, devices, and the like indicated in the description must operate according to the specific orientation and the defined operation, method, and configuration, and such terms are not to be construed as limiting the present invention.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
The first specific embodiment is as follows: referring to fig. 1 to 13, the present invention provides a high-strength light-weight cellular truss-type scaffolding system, which includes a plurality of horizontal rods 4 and a plurality of truss-type upright components; each truss type upright rod assembly comprises three truss upright rods 5 and at least one connecting disc 1 for binding the three truss upright rods 5 together, each connecting disc 1 is provided with upright rod sockets 2 distributed in a triangular shape, and each truss upright rod 5 correspondingly penetrates through one upright rod socket 2; connecting discs 1 on two adjacent truss type vertical rod assemblies are connected through a horizontal rod 4, each connecting disc 1 is used for connecting three horizontal rods 4, six truss type vertical rod assemblies and the corresponding horizontal rods 4 form hexagonal prism-shaped support system units, and the hexagonal prism-shaped support system units extend outwards to form a honeycomb truss type support system.
Replace traditional single pole setting and connect through horizon bar 4 and change into the truss-like pole setting subassembly that is triangular distribution and connect through horizon bar 4, truss-like pole setting 5 triangle-shaped stable structure's setting and honeycomb overall structure's setting can improve the bearing capacity of truss-like pole setting subassembly core and the stability of whole truss system, prevent to cause the whole unstability of support body to take place the accident of collapsing because unexpected and accidental load increases in the use.
The traditional bowl buckle type bracket system, the traditional disc buckle type bracket system and the invention are subjected to mechanical property finite element analysis and comparison, the bracket bodies are uniformly arranged to have 4 spans, multiplied by 4 spans and 3 layers at high, the bearing capacity of the traditional bowl buckle type bracket system is 1kN multiplied by 25 multiplied by 34.38 which is 859.5kN, namely 85.95t, the bearing capacity of the traditional disc buckle type bracket system is 1kN multiplied by 25 multiplied by 48.39 which is 1209.75kN, namely 121.0t, the bearing capacity of the invention is 1kN multiplied by 24 multiplied by 189.4 which is 4545.60kN, namely 454.6t, the self weight of the invention is only 0.97 times that of the bowl buckle type template bracket and is 1.02 times that of the disc buckle type template bracket; but the bearing area is 2.3 times that of the bowl buckle type template bracket and 1.86 times that of the disc buckle type template bracket, and the bearing capacity is 5.3 times that of the bowl buckle type template bracket and 3.8 times that of the disc buckle type template bracket; the advantages of load bearing capacity and stability are more apparent when the load bearing area of the present invention is increased.
TABLE 1
The truss type support frame is relatively simple in structure, the connection disc 1 and the horizontal rods 4 can be used for assembling to complete an integral truss type support frame system, each truss type vertical rod assembly can be transported to a construction site after being installed, the connection disc 4 is connected for assembling, the truss type support frame is convenient to install and disassemble quickly, operation steps of a construction site are simplified, time is saved, and compared with the traditional formwork support frame, the truss type support frame is dense in erection, and due to the fact that the truss type support frame is light in weight and high in strength, the truss structure is high in stability, the erection space is large, a large number of materials are saved, and the truss type support frame has popularization value.
The multi-row honeycomb truss type support system is a formwork support, and the multi-row honeycomb truss type support system is formed by the plurality of hexagonal prism support system units.
The second specific embodiment: with reference to fig. 1 to 6, the connecting disc 1 is provided with a node socket 3, and the connecting disc 1 and the horizontal rod 4 are connected with the horizontal rod 4 through a pin 6 to plug the horizontal rod 4 into the node socket 3, so as to connect two adjacent truss type vertical rod assemblies through the horizontal rod 4. The connection stability between the horizontal rod 4 and the connecting disc 1 can be enhanced, and the disassembly and the assembly can be facilitated. Other combinations and connections of this embodiment are the same as those of the first embodiment.
The third concrete implementation scheme is as follows: combine fig. 1 and fig. 6 to show, node socket 3 is located between two pole setting sockets 2, 4 both ends of horizon bar all are provided with joint 41, joint 41 is U type structure, all be provided with bar socket 42 on joint 41's U type structure both sides plate body, joint 41 joint is on connection pad 1, bolt 6 runs through bar socket 42, node socket 3 and the bar socket 42 of opposite side in proper order for fix horizon bar 4 on connection pad 1. Other combinations and connections of this embodiment are the same as those of the second embodiment.
The fourth specific embodiment: referring to fig. 4 and 5, the length of the strip-shaped socket 42 is smaller than the length of the upper end of the plug pin 6, the width of the strip-shaped socket 42 is smaller than the thickness of the upper end of the plug pin 6, the length of the lower end of the plug pin 6 is smaller than the length of the strip-shaped socket 42, and the thickness of the lower end of the plug pin 6 is smaller than the width of the strip-shaped socket 42. The connecting structure is used for clamping the bolt 6 on the buckle joint 41, improves the stability of connection between the horizontal rod 4 and the connecting disc 1, and prevents the bolt 6 from being shaken out from the lower part of the buckle joint 41 in the use process. Other combinations and connections of this embodiment are the same as those of the third embodiment.
The fifth concrete embodiment: as shown in fig. 5, the lower end of the plug 6 is of an L-shaped structure, so as to prevent the plug 6 from slipping out from the fastening head 41 due to the vertical vibration of the truss-type support system, and increase the stability between the horizontal rod 4 and the connecting disc 1. Other combinations and connections of this embodiment are the same as those of the fourth embodiment.
Preferably, the length of the horizontal rods 4 can be selected according to the specific application, and is used for adjusting the distance between two adjacent sets of truss type upright rod assemblies.
The sixth specific embodiment: as shown in fig. 1 to 6, the truss vertical rod 5 is welded to the connecting plate 1 to prevent the connecting plate 1 from sliding up and down during use. Other combinations and connections of this embodiment are the same as those of the fourth or fifth embodiment.
The seventh specific embodiment: as shown in fig. 3, each truss type vertical rod assembly bottom end is provided with a bottom support 62, the bottom support 62 is provided with three bottom support sockets corresponding to the truss vertical rods 5, the bottom support sockets are tubular structures, the inner walls of the bottom support sockets are provided with threads, the outer walls of the two ends of the truss vertical rods 5 are provided with threads, and the bottom support sockets are connected with the truss vertical rods 5 through threads. The fixing device is used for fixing three truss vertical rods 5 in each truss vertical rod assembly at the same time, and is convenient to disassemble and assemble a single truss vertical rod assembly. Other combinations and connections of this embodiment are the same as those of the sixth embodiment.
The specific embodiment eight: as shown in fig. 3, a top support 61 is arranged at the top end of each truss type vertical rod assembly, three top support sockets corresponding to the truss vertical rods 5 are arranged on the top supports, each top support socket is of a tubular structure, threads are arranged on the inner wall of each top support socket, and the top supports 61 are connected with the truss vertical rods 5 through the threads. Other combinations and connections of this embodiment are the same as those of the seventh embodiment.
The specific embodiment is nine: the truss support is characterized by further comprising a connecting rod, the connecting piece is of a tubular structure, threads are arranged on the inner wall of the connecting piece and used for connecting two adjacent truss vertical rods 5, and the effect of longitudinally increasing the height of the support system is achieved. Other combinations and connections of this embodiment are the same as those of embodiment eight.
The specific embodiment ten: the inner wall of one end of each truss upright rod 5 is provided with a thread, the outer wall of the other end of each truss upright rod 5 is provided with a thread, and one end of each truss upright rod 5 is connected with the other end of the adjacent truss upright rod 5 through the threads for longitudinally increasing the height of the bracket system. Other combinations and connections of this embodiment are the same as those of embodiment eight.
The specific embodiment eleven: truss pole setting 5 is Q460 steel truss pole setting, horizon bar 4 is 7075 aluminum alloy horizon bar, chooses Q460 steel truss and 7075 aluminum alloy horizon bar for use, and the material is lighter, and intensity is higher, and the dead weight is too big when avoiding replacing single truss pole setting 5 with three truss pole setting 5, is convenient for carry out the dismouting to the truss system among the operation process, can improve holistic stability and intensity simultaneously. Other combinations and connections of this embodiment are the same as nine or ten specific embodiments.
The specific embodiment twelve: the connecting disc 1 is of a circular, rectangular or triangular plate body structure. Other combinations and connections of this embodiment are the same as in embodiment eleven.
Preferably, the connecting disc 1 is a circular plate structure.
The specific embodiment thirteen: every truss-like pole setting subassembly is connected through two at least connection pads 1, is equipped with a pair of alternately and articulated down tube 8 between two horizon bars 4 that set up from top to bottom, 8 one end of down tube are connected with the connection pad 1 of truss-like pole setting subassembly, and the other end is connected with the connection pad 1 of adjacent truss-like pole setting subassembly relevant position. Other combinations and connections of this embodiment are the same as in embodiment eleven.
A fourteenth specific embodiment: the truss type vertical rod component is characterized by further comprising a wind cable 9, one end of the wind cable 9 is connected with the connecting disc 1 on one side, close to the top support 61, of each truss type vertical rod component, and the other end of the wind cable 9 is used for being connected with the ground. Other combinations and connections of this embodiment are the same as in embodiment eleven.
Although the present disclosure has been described above, the scope of the present disclosure is not limited thereto. Various changes and modifications may be effected therein by one of ordinary skill in the pertinent art without departing from the spirit and scope of the present disclosure, and these changes and modifications are intended to be within the scope of the present disclosure.