CN217400292U - Reverse-pulling fixing structure of construction soft platform - Google Patents
Reverse-pulling fixing structure of construction soft platform Download PDFInfo
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- CN217400292U CN217400292U CN202221179834.XU CN202221179834U CN217400292U CN 217400292 U CN217400292 U CN 217400292U CN 202221179834 U CN202221179834 U CN 202221179834U CN 217400292 U CN217400292 U CN 217400292U
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Abstract
The utility model relates to a supplementary construction technical field of building dome especially relates to soft platform of construction is anti-draws fixed knot and is constructed. The soft platform comprises a platform steel cable fixed at the position of the patio at the top of the building in a net shape and a closed surface paved on the platform steel cable; the platform steel cable comprises a main steel cable positioned below and an auxiliary steel cable lapped on the main steel cable, the middle of the main steel cable is connected with a plurality of counter-pulling steel cables, the top of each counter-pulling steel cable is connected with the main steel frame of the dome, the main steel frame is detachably and fixedly provided with a connecting seat, and the top of each counter-pulling steel cable is anchored on the connecting seat.
Description
Technical Field
The utility model relates to a supplementary construction technical field of building dome especially relates to soft platform of construction is drawn fixed knot and is constructed instead.
Background
Modern buildings use a central patio, with the addition of a top dome, for transparent lighting. The construction difficulty of the structure is that no construction foundation exists for the construction of the dome at the top of the patio. The dome is generally a main steel frame for firstly hoisting the dome, and then curtain wall construction, drainage construction, electromechanical lighting construction and the like are carried out on the main steel frame.
The traditional construction scheme is to directly set up the scaffold from the bottom of the building to the construction position of the dome, so a great deal of scaffold material is needed, high requirements are put on the turnover of a material system, and the installation and the disassembly of the scaffold on such a large scale are troublesome.
Therefore, the auxiliary construction can be carried out by adopting a soft platform mode, and the soft platform is directly arranged on the top of the patio in a pulling mode. However, the soft platform is supported by a steel cable, and the middle part of the soft platform generates large lower deflection. Meanwhile, after the steel cable of the soft platform is tensioned, the soft platform is of a suspended structure with two fixed ends, so that resonance is easy to occur.
SUMMERY OF THE UTILITY MODEL
The utility model discloses soft platform of construction is turned over and is drawn fixed knot and construct.
The technical problem to be solved is that: in the dome construction, the downwarping degree of the soft platform is difficult to control, and the large-span soft platform can shake up and down to influence the construction.
In order to solve the technical problem, the utility model discloses soft platform of construction is turned over and is drawn fixed knot structure adopts following scheme.
The construction soft platform counter-pulling fixing structure is arranged at the top of the building patio and used for assisting a dome above the building patio to carry out construction, and the soft platform comprises a platform steel cable fixed at the patio position at the top of the building in a net shape and a closed surface paved on the platform steel cable; the platform steel cable comprises a main steel cable positioned below and an auxiliary steel cable lapped on the main steel cable, the middle of the main steel cable is connected with a plurality of counter-pulling steel cables, the top of each counter-pulling steel cable is connected with the main steel frame of the dome, the main steel frame is detachably and fixedly provided with a connecting seat, and the top of each counter-pulling steel cable is anchored on the connecting seat.
Preferably, the reverse drawn wire rope has a tensile prestress; the main steel cable has pre-camber with a height of 1/5-1/2 of the maximum allowable lower deflection of the soft platform.
Preferably, the length of the reverse pull steel cable is adjustable, and the middle part of the reverse pull steel cable is connected with a basket screw.
Preferably, a back-pull steel cable is arranged at the intersection of the vertical projection of the main steel frame and the main steel cable, and the back-pull steel cable is vertically arranged.
Preferably, the joint of the top of the counter pull steel cable and the dome is an upward pulling node, and the joint of the bottom of the counter pull steel cable and the main steel cable is a downward pulling node; the flexible platform also comprises a stay cable with adjustable length, the bottom of the stay cable is fixed on a lower pulling node, and the top of the stay cable is connected to the main steel frame; the pull-down node of the counter pull steel cable is connected with a plurality of stay cables, and the stay cables are arranged around the counter pull steel cable.
Preferably, the main steel cable comprises a plurality of main steel cables, and the plurality of main steel cables are crossed with each other; the bottom of the reverse pull steel cable is connected to the direct intersection of the main steel cables and is simultaneously connected with all the main steel cables at the intersection;
the upper tie point of the reverse pull steel cable is connected with a plurality of inclined pull cables, and the bottom of each inclined pull cable is connected to the lower tie point of the reverse pull steel cable adjacent to the reverse pull steel cable.
Preferably, both ends of the main steel cable are fixed on a reverse sill beam of the building body, and the auxiliary steel cable is fixed on a flashing reverse sill of the building body.
Preferably, a downwarping observation system is arranged on the reverse-pulling soft platform and comprises a scale vertically arranged at the top of the main steel frame, and an indicator pointing to the scale is arranged at the center of the soft platform; the roof of the building main body is provided with observation equipment for reading the displacement of the scale.
Preferably, the connecting seat is U-shaped and comprises a bottom plate and side plates on two sides of the bottom plate, the connecting seat is clamped on a main steel frame of the dome from the lower part, and the side plates are respectively arranged on two sides of the main steel frame; the connecting seat is fixedly connected with the main steel frame through a fixed shaft; the top of the reverse pull steel cable is fixed on the bottom plate of the connecting seat.
The utility model discloses soft platform of construction is turned over and is drawn fixed knot and construct compares with prior art, has following beneficial effect:
the patio of a commercial complex is generally large, and when the flexible platform is used for auxiliary construction, the flexible platform has large downward deflection due to large span. And the soft platform of large-span itself also can take place specific frequency's oscillation from top to bottom, and this kind of rocking generally can not lead to soft platform to damage or equipment to topple, but leads to the personnel on the soft platform to stand unstably easily, especially under the condition of setting up the scaffold on the soft platform. The amplitude of vibration can be enlargied to the scaffold frame, and personnel on the scaffold frame can experience obvious rocking, influence the operation personnel and normally operate, still can cause the potential safety hazard.
The invention makes an atopic improvement on a soft platform for the auxiliary dome construction at the top of the patio, and eliminates the vibration of the soft platform as much as possible while controlling the downward deflection of the soft platform.
Specifically, during construction of the dome, the main steel frame is installed firstly, the main steel frame is directly installed in place in a hoisting mode generally, and then systems such as curtain walls, drainage, electromechanical lighting and the like are installed. When setting up soft platform, the main steelframe of dome is exactly the connection basis at soft platform top, therefore, the back-pull cable wire between soft platform and main steelframe, hold soft platform from the platform cable wire middle part of soft platform, the soft platform of direct upwards tractive from the middle part of back-pull cable wire on the one hand, the downwarping when can effectual reduction soft platform atress, on the other hand is after the tractive of having applyed the back-pull cable wire, the vibration process of soft platform itself just is no longer complete, the vertical vibration is the synchronous extension and the shrink of back-pull cable wire needs, and the deflection of back-pull cable wire itself will be less than the vibration range of soft platform far away, the original natural frequency of whole soft platform system is destroyed like this, the higher but reduction by a wide margin of the vibration frequency of his natural frequency, the vibration of the little amplitude of high frequency will significantly reduce constructor's influence.
Meanwhile, the platform steel cable is divided into a main steel cable and an auxiliary steel cable, and the main steel cable is connected with the counter-pull steel cable and is a part of the soft platform system with concentrated stress. The auxiliary steel cable is lapped on the main steel cable and mainly plays a role of forming a dense net-shaped structure for installing a closed surface. The top of the reverse pull steel cable is connected to the main steel frame through a connecting seat. Facilitating disassembly after use of the soft platform.
Drawings
FIG. 1 is a side view of the whole construction soft platform reverse-pulling fixing structure of the utility model;
FIG. 2 is an enlarged view of A in FIG. 1, i.e., a schematic view of the main rope and the sub-rope fixing structure;
FIG. 3 is a perspective view of the portion of the pull back cables and the stay cables;
fig. 4 is an enlarged view at B in fig. 3.
Description of the reference numerals:
1-platform steel cable, 1 a-main steel cable, 1 b-auxiliary steel cable;
2-reversely pulling the steel cable;
3-stay cables;
4-a scale;
5-a main steel frame;
6-reverse ridge beam;
7-flashing reverse threshold.
8-connecting seat, 8 b-side plate, 8 a-bottom plate and 8 c-fixing shaft.
Detailed Description
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings. It is to be understood that the description of the embodiments herein is for purposes of illustration and explanation only and is not intended to limit the invention.
In the present invention, unless otherwise specified, the use of directional terms such as "upper, lower, left, and right" generally means upper, lower, left, and right as illustrated with reference to fig. 1; "inner and outer" refer to the inner and outer relative to the profile of the components themselves. The present invention will be described in detail with reference to the accompanying drawings in conjunction with embodiments.
In order to solve in the dome construction, the downwarping degree of soft platform is difficult to control, and the soft platform of large-span itself can rock from top to bottom, influences the problem of construction, the utility model provides a soft platform of construction is reversed and is drawn fixed knot structure, as shown in fig. 1 to fig. 4.
The soft construction platform counter-pulling fixing structure is arranged at the top of the building patio and used for assisting a dome above the building patio to construct, and comprises a platform steel cable 1 fixed at the patio position at the top of the building in a net shape and a closed surface paved on the platform steel cable 1; the platform steel cable 1 comprises a main steel cable 1a located below and an auxiliary steel cable 1b lapped on the main steel cable 1a, the middle of the main steel cable 1a is connected with a plurality of counter-pull steel cables 2, the tops of the counter-pull steel cables 2 are connected with a main steel frame 5 of the dome, a connecting seat 8 is detachably fixed on the main steel frame 5, and the tops of the counter-pull steel cables 2 are anchored on the connecting seat 8.
The utility model discloses fall into main cable wire 1a and vice cable wire 1b with platform cable wire 1, perhaps also can understand to add in the bottom of the soft platform cable wire of ordinary netted and establish main cable wire 1 a. The main rope 1a is the main force-receiving location, and therefore the main rope 1a also requires a greater tensile strength. The arrangement of the auxiliary steel cable 1b is not different from the soft platform steel cable 1 in the prior art, two ends of the auxiliary steel cable 1b are fixed with the main structure of a building, and the auxiliary steel cables 1b are woven into a net, so that on one hand, stress is dispersed, and on the other hand, the auxiliary steel cable 1b is beneficial to maintaining the shape of the auxiliary steel cable 1 b.
The top of the pull-back cable 2, i.e. the pull-up node, is detachably fixed to the main steel frame 5 of the dome, and after the construction is completed, the pull-back cable 2 needs to be detached again. The bottom of the reverse pull steel cable 2, that is, the pull-down node, is detachably fixed to the main steel cable 1a by a connector such as a latch. After the mechanical equipment and constructors for construction are arranged on the closed surface, the stress is mainly transmitted to the steel main beam of the dome through the counter-pulling steel cable 2. And because the soft platform is relatively high, the distance between the soft platform and the dome is not particularly far, and generally does not exceed 5m-10m, so the deformation amount of the counter-pull steel cable 2 is limited. The downwarping of the soft platform can be greatly reduced. And after the counter pull wires 2 are arranged, the soft platform needs to stretch the counter pull wires 2 if it is going to move up and down. The vibration amplitude of the soft platform is greatly reduced.
Although the reverse cables 2 are provided, the reverse cables 2 can only hold the main cables 1a at a specific point in the middle of the main cables 1a, and the main cables 1a between the reverse cables 2 and the main cables 1a at both ends are still down-warped, but the down-warping is divided into a plurality of segments, and the degree of down-warping is smaller in each segment. In order to be more effective against downwarping, the reverse pull cables 2 are therefore provided with a tensile prestress; the main steel cable 1a has a pre-camber with a height of 1/5-1/2 of the maximum allowable lower deflection of the soft platform. The length of the reverse pull steel cable 2 is adjustable, and the middle part of the reverse pull steel cable 2 is connected with a basket screw.
The cross point of the vertical projection of the main steel frame 5 and the main steel cable 1a is provided with a reverse pull steel cable 2, and the reverse pull steel cable 2 is vertically arranged. The component force of sideslip on the main steel cable caused by the inclination of the reverse-pull steel cable 2 is avoided.
The joint of the top of the counter pull steel cable 2 and the dome is an upward pull node, and the joint of the bottom of the counter pull steel cable 2 and the main steel cable 1a is a downward pull node; the flexible platform further comprises a stay cable 3 with adjustable length, the bottom of the stay cable 3 is fixed on a lower pull node, and the top of the stay cable 3 is connected to a main steel frame 5; the pull-down node of the reverse pull steel cable 2 is connected with a plurality of stay cables 3, and the stay cables 3 are arranged around the reverse pull steel cable 2.
Due to the problems of equipment placement on the soft platform and the like, stress concentration at partial positions can be caused. In practical use of the soft platform, the main steel rope 1a may drift, and the soft platform may have some devices or anchoring points extending to the bottom of the soft platform, and the drifting of the main steel rope 1a may affect the devices. Therefore, as shown in fig. 1 and 3, the flexible platform further comprises a stay cable 3 with adjustable length, the bottom of the stay cable 3 is fixed on a lower pulling node, and the top of the stay cable 3 is connected to a main steel frame 5; meanwhile, the connection position of the top of the reverse pull steel cable 2 and the main steel frame 5 is defined as an upward pull node, and the connection position of the bottom of the reverse pull steel cable 2 and the main steel cable 1a is defined as a downward pull node. The pull-down node of the reverse pull steel cable 2 is connected with a plurality of inclined pull cables 3, and the inclined pull cables 3 are arranged around the reverse pull steel cable 2. Thus, on the one hand, the presence of the stay cables 3 objectively limits the drifting movement of the main cable 1a, and on the other hand, if the main cable 1a is drifting, it is possible to prevent the main cable 1a from drifting further or to pull the main cable 1a back to the original position by pulling one of the stay cables 3. Meanwhile, the stay cable 3 can also be used as a standby structure of the back pull steel cable 2 and has a secondary safety function.
The main steel cable 1a comprises a plurality of main steel cables 1a which are mutually crossed; the bottom of the reverse pull steel cable 2 is connected to the direct intersection of the main steel cable 1a, and is simultaneously connected with all the main steel cables 1a at the intersection; the upper pulling nodes of the reverse pulling steel cable 2 are connected with a plurality of inclined pulling cables 3, and the bottom parts of the inclined pulling cables 3 are connected with the lower pulling nodes of the reverse pulling steel cable 2 adjacent to the reverse pulling steel cable 2.
As shown in fig. 3, the main wire rope 1a includes a plurality of main wire ropes 1a, the main wire ropes 1a are crossed with each other; the bottom of the reverse pull steel cable 2 is connected to the direct intersection of the main steel cable 1a, and is simultaneously connected with all the main steel cables 1a at the intersection; such a counter-pull steel cable 2 can provide counter-pull support to a plurality of main steel cables 1a simultaneously, and the bottom of the counter-pull steel cable 2 is connected with a plurality of main steel cables 1a which are crossed mutually simultaneously, so that the main steel cables 1a are fixed mutually at the crossed point position of the main steel cables 1a, and the structural stability is improved.
Two ends of the main steel cable 1a are fixed on a reverse sill beam 6 of the building body, and the auxiliary steel cable 1b is fixed on a flashing reverse sill 7 of the building body.
A down-warping observation system is arranged on the reverse-pulling soft platform and comprises a scale 4 vertically arranged at the top of a main steel frame 5, and an indicator pointing to the scale 4 is arranged at the center of the soft platform; and observation equipment is arranged on the roof of the building main body to read the settlement of the scale 4.
In the detection process of carrying out the dome construction, generally use the building subject as the observation foundation, set up observation equipment in the building subject, come the control to hoist and mount at the center of dome, flagging scale 4 naturally, alright obtain under the pulling force of back-pull cable wire 2, the main steelframe 5 deformation condition of dome. A pointing device is then placed on the soft platform, pointing towards the scale 4. The displacement of the soft platform can be obtained by combining the position variation of the dome. Particularly, in ordinary use, the main steel frame 5 of the dome is firm, so that the deformation amount is small. Whereas the amount of deformation of the soft platform is much greater compared to the dome. Therefore, the reading change of the pointer on the soft platform can be directly approximately equal to the deformation of the soft platform.
As shown in fig. 4, the connecting base 8 is U-shaped, and includes a bottom plate 8a and side plates 8b on two sides of the bottom plate, the connecting base is clamped on the main steel frame 5 of the dome from below, and the side plates 8b are respectively arranged on two sides of the main steel frame 5; the connecting seat 8 is fixedly connected with the main steel frame 5 through a fixing shaft 8 c; the top of the reverse pull steel cable 2 is fixed on a bottom plate 8a of the connecting seat 8. Wherein the fixed shaft 8c is a bolt rod and is arranged on the main steel frame 5 in a penetrating way. Further preferably, two ear plates extending downwards are arranged at the bottom of the main steel frame 5, and the connecting seat 8 is connected to the ear plates.
The above-mentioned embodiments are only for describing the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art without departing from the design spirit of the present invention should fall into the protection scope defined by the claims of the present invention.
Claims (9)
1. The construction soft platform reverse-pulling fixed structure is arranged at the top of the building patio and is used for assisting a dome above the building patio to carry out construction, and is characterized in that,
the soft platform comprises a platform steel cable (1) fixed at the courtyard position at the top of a building in a net shape and a closed surface paved on the platform steel cable (1); platform cable wire (1) is including main cable wire (1 a) that is located the below and vice cable wire (1 b) of taking on main cable wire (1 a), a plurality of counter-pull cable wires (2) are connected to main cable wire (1 a) middle part, and counter-pull cable wire (2) top is connected with main steelframe (5) of dome, can dismantle on main steelframe (5) and be fixed with connecting seat (8), and counter-pull cable wire (2) top anchor is on connecting seat (8).
2. The reverse-pulling fixing structure of construction soft platform according to claim 1, characterized in that the reverse-pulling steel cable (2) has tensile prestress;
the main steel cable (1 a) has a pre-camber with a height of 1/5-1/2 of the maximum allowable lower deflection of the soft platform.
3. The reverse-pulling fixing structure of the construction soft platform as claimed in claim 2, wherein the length of the reverse-pulling steel cable (2) is adjustable, and a basket screw is connected to the middle part of the reverse-pulling steel cable.
4. The reverse-pulling fixing structure of the construction soft platform according to claim 1, wherein the reverse-pulling steel cable (2) is arranged at the intersection of the vertical projection of the main steel frame (5) and the main steel cable (1 a), and the reverse-pulling steel cable (2) is vertically arranged.
5. The reverse-pulling fixed structure of the construction soft platform according to claim 1, wherein the joint of the top of the reverse-pulling steel cable (2) and the dome is an upward-pulling joint, and the joint of the bottom of the reverse-pulling steel cable and the main steel cable (1 a) is a downward-pulling joint;
the flexible platform further comprises a stay cable (3) with adjustable length, the bottom of the stay cable (3) is fixed on a lower pull node, and the top of the stay cable (3) is connected to the main steel frame (5); a plurality of stay cables (3) are connected to the pull-down node of the reverse pull steel cable (2), and the stay cables (3) are arranged around the reverse pull steel cable (2).
6. The reverse-pulling fixing structure of the construction soft platform is characterized in that the main steel cable (1 a) comprises a plurality of main steel cables (1 a), and the main steel cables (1 a) are crossed with each other; the bottom of the reverse pull steel cable (2) is connected to the direct intersection of the main steel cable (1 a), and simultaneously all the main steel cables (1 a) at the intersection are connected;
the upper pulling nodes of the counter pull steel cable (2) are connected with a plurality of stay cables (3), and the bottoms of the stay cables (3) are connected to the lower pulling nodes of the counter pull steel cable (2) adjacent to the counter pull steel cable (2).
7. The reverse-pulling fixing structure of the construction soft platform as claimed in claim 1, wherein both ends of the main steel cable (1 a) are fixed on a reverse sill beam (6) of the building body, and the auxiliary steel cable (1 b) is fixed on a flashing reverse sill (7) of the building body.
8. The reverse-pulling fixed structure of the construction soft platform as claimed in claim 1, wherein a down-warping observation system is arranged on the reverse-pulling soft platform, and comprises a scale (4) vertically arranged at the top of a main steel frame (5), and an indicator pointing to the scale (4) is arranged at the center of the soft platform; the roof of the building main body is provided with observation equipment for reading the displacement of the scale (4).
9. The reverse-pulling fixing structure of the construction soft platform according to claim 1, wherein the connecting seat (8) is U-shaped and comprises a bottom plate (8 a) and side plates (8 b) at two sides of the bottom plate, the connecting seat is clamped on a main steel frame (5) of the dome from the lower part, and the side plates (8 b) are respectively arranged at two sides of the main steel frame (5); the connecting seat (8) is fixedly connected with the main steel frame (5) through a fixed shaft (8 c); the top of the reverse pull steel cable (2) is fixed on a bottom plate (8 a) of the connecting seat (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221179834.XU CN217400292U (en) | 2022-05-17 | 2022-05-17 | Reverse-pulling fixing structure of construction soft platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221179834.XU CN217400292U (en) | 2022-05-17 | 2022-05-17 | Reverse-pulling fixing structure of construction soft platform |
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| Publication Number | Publication Date |
|---|---|
| CN217400292U true CN217400292U (en) | 2022-09-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221179834.XU Active CN217400292U (en) | 2022-05-17 | 2022-05-17 | Reverse-pulling fixing structure of construction soft platform |
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| Country | Link |
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| CN (1) | CN217400292U (en) |
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- 2022-05-17 CN CN202221179834.XU patent/CN217400292U/en active Active
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