CN108824839B - Cable reinforcement structure of existing C-shaped steel purline - Google Patents
Cable reinforcement structure of existing C-shaped steel purline Download PDFInfo
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- CN108824839B CN108824839B CN201810996420.8A CN201810996420A CN108824839B CN 108824839 B CN108824839 B CN 108824839B CN 201810996420 A CN201810996420 A CN 201810996420A CN 108824839 B CN108824839 B CN 108824839B
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- shaped steel
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- steel purline
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 53
- 239000010959 steel Substances 0.000 title claims abstract description 53
- 230000002787 reinforcement Effects 0.000 title abstract description 5
- 238000003825 pressing Methods 0.000 claims abstract description 61
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 8
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 2
- 238000005457 optimization Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Classifications
-
- 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
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
- E04G23/0218—Increasing or restoring the load-bearing capacity of building construction elements
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Joining Of Building Structures In Genera (AREA)
- Rod-Shaped Construction Members (AREA)
Abstract
A guy cable reinforcing structure of existing C-shaped steel purline. The utility model relates to a structural reinforcement of building steel construction engineering technical field, specifically is a reinforced structure to existing C shaped steel purlin or wall roof beam through the cable. The cable reinforcing structure of the existing C-shaped steel purline has the advantages of stable structure, convenience in assembly, low processing cost and high structural strength, and can obviously improve the bearing capacity of the C-shaped steel purline or the wall beam by means of the cable. The C-shaped steel purline is characterized in that n supports with equal intervals are fixedly connected to the bottom surface of the C-shaped steel purline, and n is an integer greater than 1; the inhaul cable reinforcing structure comprises n-1 inhaul cables, n-1 downward-pressing structural members in a T shape and n fixed structural members in a pi shape; the end of the support rod, which is far away from the pressing plate, is hinged with a pulley, and the bottom edge of the pulley and the bottom surface of the pressing plate are positioned on the same horizontal plane. The invention has the advantages of stable structure, convenient assembly, low processing cost, high structural strength and the like on the whole.
Description
Technical Field
The invention relates to structural reinforcement in the technical field of constructional steel structural engineering, in particular to a reinforcement structure for an existing C-shaped steel purline or wall beam through a inhaul cable.
Background
At present, cold-formed thin-wall C-shaped steel purlines or wall beams are widely applied to light steel structure roofs and wall surfaces. In the using process of the house, due to factors such as load increase or using function change, the bearing capacity of the simply supported purlines is insufficient, the simply supported purlines are required to be reinforced, and the methods of replacing purline components or increasing purlines to reduce the distance between the purlines are generally adopted, but the construction is troublesome, the efficiency is low, and the cost is high.
In this regard, a Chinese patent application entitled "string purline applied to a rigid roof cable dome structure" and application number "201810150017.3" was published by the national buret at 22, 6, 2018, in which a cable is provided between two brackets of the purline, and an adjustable brace is further provided between the cable and the purline. However, the traditional support only needs to be pressed down, and the support in the case needs to support larger transverse tension, so the material requirement and the processing requirement for the support are extremely high, the support needs to be redesigned when in actual application, the cost is high, the time and the labor are wasted, and great trouble is brought to the popularization and the application of the technical scheme.
Disclosure of Invention
Aiming at the problems, the invention provides the inhaul cable reinforcing structure of the existing C-shaped steel purline, which has the advantages of stable structure, convenient assembly, low processing cost and high structural strength, and can obviously improve the bearing capacity of the C-shaped steel purline or the wall beam by means of inhaul cables.
The technical scheme of the invention is as follows: the C-shaped steel purline is characterized in that n supports with equal intervals are fixedly connected to the bottom surface of the C-shaped steel purline, and n is an integer greater than 1;
the inhaul cable reinforcing structure comprises n-1 inhaul cables, n-1 downward-pressing structural members in a T shape and n fixed structural members in a pi shape;
the fixing structure comprises a first vertical base plate and a pair of fixing vertical plates, wherein the first vertical base plate is fixedly connected to the inner side of a web plate of the C-shaped steel purline and is positioned above the support, and the pair of fixing vertical plates are vertically and fixedly connected to the end face, facing away from the web plate of the C-shaped steel purline, of the first vertical base plate and are positioned in the C-shaped steel purline;
the pressing structure comprises a second vertical base plate and a pressing vertical plate, wherein the second vertical base plate is fixedly connected to the inner side of a web plate of the C-shaped steel purline and is positioned between two adjacent fixed structure members, and the pressing vertical plate is fixedly connected to the end face, facing away from the web plate of the C-shaped steel purline, of the second vertical base plate and is positioned in the C-shaped steel purline;
the lower part of the pressing vertical plate is provided with a containing hole, the inhaul cables are in one-to-one correspondence with the pressing vertical plate, the middle parts of the inhaul cables are arranged in the containing hole in a penetrating mode, and two side ends of the inhaul cables are fixedly connected to the upper parts of the two fixed vertical plates positioned on two sides of the pressing vertical plate.
The holding hole is rectangular form vertical through-hole, still sliding connection has the clamp plate on pushing down the both sides terminal surface of riser, the clamp plate is pressed on the middle part of cable, articulated on the top surface of clamp plate have with the pterygoid lamina threaded connection's of C shaped steel purlin adjusting bolt.
The lower part of the end face of the pressing plate, which is back to the downward pressing vertical plate, is provided with a supporting rod, the end of the supporting rod, which is far away from the pressing plate, is hinged with a pulley, and the bottom edge of the pulley and the bottom surface of the pressing plate are positioned on the same horizontal plane.
The clamp plate is equipped with the direction subassembly on the terminal surface of vertical plate is pressed down dorsad, the direction subassembly includes main tributary vaulting pole, connecting rod, pressure spring and gyro wheel, the one end of main tributary vaulting pole articulates the upper portion at the terminal surface of clamp plate, and the other end and the gyro wheel of main tributary vaulting pole are articulated, the rectangular hole that sets up along its length direction is offered to the lower part of main tributary vaulting pole, the one end of connecting rod articulates in rectangular hole through the pivot at the middle part of the terminal surface of clamp plate, and the other end, the pressure spring holding is in rectangular hole, and support between the top and the pivot of rectangular hole inner wall.
The inhaul cable is arranged on the inner side of the C-shaped steel purline through the downward-pressing structural member and the fixing structural member, so that the bearing capacity of the C-shaped steel purline at the position between the two supports is enhanced through the inhaul cable, a user does not need to redesign the supports, and only the existing supports and the connecting mode are used. The support force that it provided is sufficient, with low costs, easily installation, can directly reform transform current C shaped steel purlin or wall roof beam, has stable in structure, convenient assembling, low in processing cost and advantage such as structural strength height on the whole.
Drawings
Figure 1 is a schematic view of the structure of the present case,
figure 2 is a schematic view of the structure of the present press-down structure,
figure 3 is a left side view of figure 2,
figure 4 is a top view of figure 2,
figure 5 is a schematic structural view of the fastening structure of the present case,
figure 6 is a left side view of figure 5,
figure 7 is a top view of figure 5,
figure 8 is a schematic view of an optimized embodiment of the present hold-down structure,
FIG. 9 is a left side view of FIG. 8;
figure 10 is a schematic view of a further preferred embodiment of the present hold-down member,
figure 11 is a schematic view of a further preferred embodiment of the present hold-down member,
FIG. 12 is a reference view of a second embodiment of a further optimized embodiment of the present hold-down member;
in the figure, 1 is a C-shaped steel purline, 10 is a web plate, 2 is a support, 3 is a stay rope, 4 is a pressing structural member, 41 is a vertical base plate II, 42 is a pressing vertical plate, 420 is a containing hole, 43 is a pressing plate, 431 is a supporting rod, 432 is a pulley, 44 is a guide assembly, 441 is a main supporting rod, 442 is a connecting rod, 443 is a pressure spring, 444 is a roller, 5 is a fixed structural member, 51 is a vertical base plate I, and 52 is a fixed vertical plate.
Detailed Description
As shown in figures 1-12, n supports 2 with equal intervals are fixedly connected to the bottom surface of the C-shaped steel purline 1, and n is an integer greater than 1;
the inhaul cable reinforcing structure comprises n-1 inhaul cables 3, n-1 downward-pressing structural members 4 in a T shape and n fixing structural members 5 in a pi shape;
the fixing structure 5 comprises a first vertical base plate 51 and a pair of fixing vertical plates 52, the first vertical base plate 51 is fixedly connected to the inner side of the web 10 of the C-shaped steel purline and is positioned above the support 2, and the pair of fixing vertical plates 52 are vertically and fixedly connected to the end face, facing away from the web 10 of the C-shaped steel purline, of the first vertical base plate 51 and are positioned in the C-shaped steel purline 1;
the pressing structure 4 comprises a second vertical base plate 41 and a pressing vertical plate 42, the second vertical base plate 41 is fixedly connected to the inner side of the web 10 of the C-shaped steel purline and is positioned between two adjacent fixed structure members 5, and the pressing vertical plate 42 is fixedly connected to the end face, facing away from the web 10 of the C-shaped steel purline, of the second vertical base plate 41 and is positioned in the C-shaped steel purline 1;
the lower part of the pressing vertical plate 42 is provided with a containing hole 420, the inhaul cables 3 are in one-to-one correspondence with the pressing vertical plate 42, the middle parts of the inhaul cables 3 are arranged in the containing hole 420 in a penetrating mode, and two side ends of the inhaul cables 3 are fixedly connected to the upper parts of two fixing vertical plates 52 positioned on two sides of the pressing vertical plate 42. The inhaul cable is arranged on the inner side of the C-shaped steel purline through the downward-pressing structural member and the fixing structural member, so that the bearing capacity of the C-shaped steel purline at the position between the two supports is enhanced through the inhaul cable, a user does not need to redesign the supports, and only the existing supports and the connecting mode are used. The support force that it provided is sufficient, with low costs, easily installation, can directly reform transform current C shaped steel purlin or wall roof beam, has stable in structure, convenient assembling, low in processing cost and advantage such as structural strength height on the whole.
Optimization implementation: the accommodating hole 420 is a long-strip-shaped vertical through hole, two side end surfaces of the pressing vertical plate 42 are also connected with pressing plates 43 in a sliding manner, the pressing plates 43 are pressed on the middle part of the inhaul cable 3, and an adjusting bolt (not shown in the figure) in threaded connection with a wing plate of the C-shaped steel purline 1 is hinged to the top surface of the pressing plates 43. Therefore, the adjusting bolt can be firstly screwed up to lift the pressing plate to the uppermost position, and then the adjusting bolt is downwards screwed after the inhaul cable is arranged, so that the pressing plate presses the middle part of the inhaul cable to downwards move, and further, larger pulling force is generated on the inhaul cable, namely, the pressing structural part can provide larger supporting force for the C-shaped steel purline; and finally, welding between the pressing plate and the C-shaped steel purline or welding between the adjusting bolt and the C-shaped steel purline is completed, so that the stay cable can continuously and stably provide supporting force. Therefore, in actual use, the position of the pressing plate can be calculated and adjusted according to the force increased by the actual requirement.
In addition, people find in practical application that along with descending of the middle part of the inhaul cable, a folding angle is formed at the position of the middle part of the inhaul cable, so that the overall practical service life of the inhaul cable and the C-shaped steel purline is seriously influenced, and the scheme further provides the following two further optimization embodiments.
Further optimizing embodiment one: the lower part of the end surface of the pressing plate 43, which is opposite to the downward pressing vertical plate 42, is provided with a supporting rod 431, the end of the supporting rod 431, which is far away from the pressing plate, is hinged with a pulley 432, and the bottom edge of the pulley 432 and the bottom surface of the pressing plate 43 are positioned on the same horizontal plane. Like this, will not have the existence of dog-ear between cable and the clamp plate, both contact portions will keep parallelism to effectively avoid damaging the cable because of the dog-ear through the pulley, finally influence the holistic problem of actual life of C shaped steel purlin, have stability good, long service life's advantage.
To the easy broken problem of branch in long-term oblique force of above-mentioned further optimization embodiment one (because of the length direction of branch pole and the cable exist the contained angle and produce to the direction of its effort, and this contained angle is difficult for eliminating), this case has made further optimization embodiment two: the pressing plate 43 is provided with a guide assembly 44 on the end face of the pressing vertical plate 42 facing away downwards, the guide assembly 44 comprises a main supporting rod 441, a connecting rod 442, a pressure spring 443 and a roller 444, one end of the main supporting rod 441 is hinged to the upper portion of the end face of the pressing plate 43 through a hinge seat I, the other end of the main supporting rod 441 is hinged to the roller 444, a long strip-shaped hole arranged along the length direction of the main supporting rod 441 is formed in the lower portion of the main supporting rod 441, one end of the connecting rod 442 is hinged to the middle portion of the end face of the pressing plate 43 through a hinge seat II, the other end of the connecting rod 442 is hinged to the long strip-shaped hole through a rotating shaft, and the pressure spring 443 is accommodated in the long strip-shaped hole and abuts against the top of the inner wall of the long strip-shaped hole and between the top of the inner wall of the long strip-shaped hole and the rotating shaft. As shown in fig. 10-12, when the pressing plate descends, as the tension on the inhaul cable is larger and larger, the acting force applied to the roller is also gradually increased, so that the pressure spring is gradually compressed, and the roller and the main supporting rod are gradually overturned upwards, so that the main supporting rod always acts in the direction of the acting force of the inhaul cable on the roller, and further, the main supporting rod can maintain long-acting structural stability in the use process. Meanwhile, due to the existence of the roller, the included angle between the middle part of the inhaul cable and the bottom surface of the pressing plate is extremely small. Finally, even when the folding angle between the inhaul cable and the pressing plate is 'slowed down', the whole guide assembly can keep good stability and long service life.
Claims (1)
1. The stay cable reinforcing structure of the existing C-shaped steel purline is characterized in that n supports with equal intervals are fixedly connected to the bottom surface of the C-shaped steel purline, and n is an integer greater than 1;
the inhaul cable reinforcing structure comprises n-1 inhaul cables, n-1 downward-pressing structural members in a T shape and n fixed structural members in a pi shape;
the fixing structure comprises a first vertical base plate and a pair of fixing vertical plates, wherein the first vertical base plate is fixedly connected to the inner side of a web plate of the C-shaped steel purline and is positioned above the support, and the pair of fixing vertical plates are vertically and fixedly connected to the end face, facing away from the web plate of the C-shaped steel purline, of the first vertical base plate and are positioned in the C-shaped steel purline;
the pressing structure comprises a second vertical base plate and a pressing vertical plate, wherein the second vertical base plate is fixedly connected to the inner side of a web plate of the C-shaped steel purline and is positioned between two adjacent fixed structure members, and the pressing vertical plate is fixedly connected to the end face, facing away from the web plate of the C-shaped steel purline, of the second vertical base plate and is positioned in the C-shaped steel purline;
the lower part of the pressing vertical plate is provided with accommodating holes, the inhaul cables are in one-to-one correspondence with the pressing vertical plate, the middle parts of the inhaul cables are arranged in the accommodating holes in a penetrating mode, and the ends of the two sides of the inhaul cables are fixedly connected to the upper parts of the two fixing vertical plates positioned on the two sides of the pressing vertical plate;
the accommodating hole is a strip-shaped vertical through hole, two side end faces of the lower vertical plate are also connected with pressing plates in a sliding manner, the pressing plates are pressed on the middle part of the inhaul cable, and the top surface of each pressing plate is hinged with an adjusting bolt in threaded connection with a wing plate of the C-shaped steel purline;
the pressing plate is characterized in that a guide assembly is arranged on the end face of the pressing plate, which is opposite to the downward pressing vertical plate, the guide assembly comprises a main supporting rod, a connecting rod, a pressure spring and a roller, one end of the main supporting rod is hinged to the upper portion of the end face of the pressing plate, the other end of the main supporting rod is hinged to the roller, a strip-shaped hole arranged along the length direction of the main supporting rod is formed in the lower portion of the main supporting rod, one end of the connecting rod is hinged to the middle portion of the end face of the pressing plate, the other end of the connecting rod is hinged to the strip-shaped hole through a rotating shaft, and the pressure spring is accommodated in the strip-shaped hole and is propped against the top of the inner wall of the strip-shaped hole and between the top of the rotating shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810996420.8A CN108824839B (en) | 2018-08-29 | 2018-08-29 | Cable reinforcement structure of existing C-shaped steel purline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810996420.8A CN108824839B (en) | 2018-08-29 | 2018-08-29 | Cable reinforcement structure of existing C-shaped steel purline |
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| CN108824839A CN108824839A (en) | 2018-11-16 |
| CN108824839B true CN108824839B (en) | 2023-11-24 |
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