TW201900993A - Seismic reinforcing structure with continuously integral stirrup - Google Patents

Abstract

The present invention discloses a seismic reinforcing structure with a continuously integral stirrup, comprising a stirrup and a plurality of main reinforcements. The stirrup comprises a plurality of confinements and at least one connector. Each confinement is located on a confining plane respectively and has at least one enclosed region. The confinements are parallel to one another and are arranged at intervals in a direction perpendicular to the confining plane. The two adjacent confinements are connected by the connector. The main reinforcements are respectively arranged perpendicularly to the confining plane and are arranged in the corresponding enclosed regions. Wherein the stirrup is an integral steel bar. The invention uses the integral stirrup with a plurality of confinements wherein the confinements have fixed spaces to one another, so that the seismic reinforcing structure can extend an external force from one side to another, and can improve the accuracy of the structure.

Description

 Reinforced seismic strengthening structure with continuous integral forming stirrup  

BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to a steel bar structure and, in particular, to a steel ball striking reinforcement structure using a continuously integrally formed stirrup and having a plurality of closed spaces perpendicular to the main tendons and having a fixed spacing.

The beam-column structure in the building is used to support the backbone of the whole building structure. In the general reinforced concrete design structure, in order to strengthen the structural shock resistance, the hoops are generally used to bundle the steel bars and concrete to make the steel bars. It can still be effectively combined with concrete during the earthquake.

Generally speaking, the reinforced concrete beam and column is composed of a plurality of main ribs and a plurality of stirrups to strengthen the surrounding force of the whole structure, and then a steel cage is completed, and then the steel cage is injected into the concrete to obtain the required reinforced concrete beam and column. The conventional practice is to erect the main ribs in the predetermined ground (or horizontally between the two columns) at the construction site, and then tie the stirrups one by one and bundle the multiple main ribs, and then fix the main ribs and the stirrups by lashing. The relative position is then poured into the concrete to complete the reinforced concrete beam and column work. Another conventional practice is to first traverse the main ribs, then flatten the required stirrups one by one, then put them into the upper main ribs, and move the stirrups to the position, and then use the lashing method to fix the upper main ribs, and then the remaining main ribs. After the waistband is inserted into the stirrup, the reinforcement is ligated, and finally the steel cage is erected at a predetermined place (or placed between the two columns) and then poured into the concrete to complete the reinforced concrete beam and column work. All of the above methods require a large amount of manpower to complete, and the latter method requires manual work to carry out the work, which is likely to cause personal injury and structural deformation.

Among them, the position of the stirrup is an important factor for the strength of a strengthened structure in the reinforced concrete beam-column structure, and it is also one of the important components of the effective earthquake resistance when the beam and column are damaged. At the same time, in order to strengthen the surrounding force of the stirrup, it is often Design a section of the hook on the stirrup or fix the relative position of the main tendon and the stirrup by increasing the tendon. Therefore, the position and shape of the stirrup affect the structural safety of the building.

However, in the prior art, the staff members need to bundle the stirrups on the main ribs at the construction site. It is likely that the gap between the stirrups is improper due to the limitation of the high-altitude site area and the improper operation of the personnel. , resulting in structural strength is not as expected.

Furthermore, with the change of building type, in order to shorten the construction period requirements, reduce the construction cost and pollution, it is nowadays that the steel cages are pre-assembled and transported to the required site to assemble the concrete to complete the reinforced concrete beam and column work. the trend of.

The conventional pre-grouped steel cage is composed of a plurality of stirrups arranged to be positioned and then the main tendons are inserted into the desired position, or the main tendons are placed in an array and then the plurality of stirrups are placed on the main tendons. . Since the required stirrups and the main ribs can be prepared in advance and are easy to stack, the material preparation and assembly speed of the pre-group reinforcement cages are more efficient than the conventional conventional construction methods, and the construction cost is also reduced. And its environmental pollution.

However, whether it is made in the form of the main ribs or the hoops, the structure of the pre-grouped cages is easy to be slightly deformed due to the shape of the stirrups, or the appearance of the main ribs changes due to the gravity relationship, resulting in The height of the group of cages cannot be too long. When the required structural height is greater than the structural limit of the pre-grouped steel cage, it is necessary to use a splicer to combine a plurality of pre-grouped steel cages for use, but the structural strength will be reduced due to the non-integral structure. Furthermore, the preparation of the stirrup becomes more cumbersome because a large number of stirrup components are required.

At the same time, due to the congenital limitation of the stirrup members, when the number of stirrup components used in the steel beam column is increased, the position of the break point is also increased. However, when a continuous spiral stirrup is used in order to reduce the break point, there is no fixed thread pitch due to the spiral structure, and thus the artificial gap adjustment error is liable to cause the bundle force on the steel cage to be less than expected.

It can be seen that there are still many shortcomings in the above-mentioned prior art, which is not a good design, and needs to be improved. In view of the above, the present invention will provide a steel reinforced seismic reinforced structure using a continuous integrally formed stirrup and the stirrup having a closed space of a fixed pitch.

One aspect of the present invention is to provide a steel reinforced seismic strengthening structure having a continuous integrally formed stirrup. According to an embodiment of the present invention, the steel reinforced seismic strengthening structure of the present invention has a continuous integral forming stirrup comprising a stirrup and a plurality of main ribs. The stirrup includes a plurality of bundle portions and at least one connecting portion, each of the bundle portions being respectively located on a corresponding one of the bundle planes, the bundle portions being parallel to each other and arranged in a direction perpendicular to the direction of the bundle planes, Each of the bundles has at least one enclosed space, and the adjacent two bundles are connected by a joint. The plurality of main ribs are perpendicular to the surrounding planes and are disposed in the corresponding closed spaces. Wherein, the stirrup is a continuous integrally formed steel bar.

In addition, each of the bundles includes at least one frame segment and at least one rib segment, at least one frame segment for surrounding the main ribs, and at least one rib segment is staggered in at least one frame segment, thereby Form a closed space.

Furthermore, each of the bundle portions has at least one overlap region, and at least one of the overlap regions is formed by overlapping portions of the frame segments, overlapping portions of the tie segments, or overlapping portions of the frame segments and the tie segments. Each of the bundled portions has a bundle start point and a bundle end point, and the connecting portion connects the bundle end point of the bundle portion and the bundle start point of the other bundle portion.

Further, the bundle portion located in the overlap region has a cross-pressure section and a pressure-receiving section, and the cross-pressure section is connected to the connecting portion by the end point of the bundle, and the pressure-receiving section is located at the other bundle portion of the cross-pressure section. One side of the direction to form a superimposed area.

The two adjacent bundles of the steel reinforced seismic strengthening structure are fixed by a connecting portion.

Compared with the prior art, the seismic strengthening structure of the steel bar with continuous integral forming stirrups uses continuous and integrally formed stirrups to continuously transmit the stress of the steel seismic strengthening structure, thereby reducing the possibility of frustration; It can avoid the crisis that the structural strength of the spiral stirrups is not as expected due to improper artificial application or environmental factors. In addition, since only the main rib is inserted into the closed space of the stirrup and combined with the corresponding position of the surrounding beam, the required steel reinforced seismic strengthening structure can be completed, and deformation is not easy, so that the steel reinforced seismic strengthening structure can be pre-predicted. The group mode is completed, and a simple assembly procedure can be completed at the construction site, which reduces the difficulty of the application. Furthermore, since the steel reinforced seismic strengthening structure can be pre-assembled, the required components can be directly assembled after production, which reduces the possibility of component deformation, thereby improving the matching between each component in the steel reinforced seismic strengthening structure. Furthermore, since the steel reinforced seismic strengthening structure can be assembled in advance, the time elasticity and operational convenience of the quality assurance inspection are improved, thereby ensuring the structural strength of the steel reinforced seismic strengthening structure.

The advantages and spirit of the present invention will be further understood from the following detailed description of the invention.

1‧‧‧Strengthened seismic strengthening structure

12‧‧‧ stirrups

121‧‧‧Bundle

1211‧‧‧closed space

1212‧‧‧Frame section

1213‧‧‧Strength

1214‧‧‧Folding area

12141‧‧‧cross pressure section

12142‧‧‧pressure section

1215‧‧‧Bundle starting point

1216‧‧‧Bundle end point

122‧‧‧Connecting Department

123‧‧‧Bend

14‧‧‧ main tendons

Z ₁ ‧‧‧Bundle plane

FIG. 1 is a schematic view showing a specific embodiment of a seismic strengthening structure of a steel bar with continuous integral forming stirrups according to the present invention.

FIG. 2 is a schematic view showing a specific embodiment of the stirrup of the steel reinforced seismic strengthening structure of the continuous integral forming stirrup of the present invention.

Figure 3 is a schematic view showing the surrounding portion of Figure 2.

Figure 4 is a schematic view showing another embodiment of the stirrup of the steel reinforced seismic strengthening structure of the present invention having a continuous integral forming stirrup.

Figure 5 is a schematic view showing the surrounding portion of Figure 4.

Figure 6 is a schematic view showing another embodiment of the seismic strengthening structure of the steel bar with continuous integral forming stirrups of the present invention.

Figure 7 is a schematic view showing another embodiment of the stirrup of the steel reinforced seismic strengthening structure of the present invention having continuous integral forming stirrups.

The present invention will be further described in detail below with reference to the accompanying drawings.

Referring to FIG. 1 , FIG. 1 is a schematic view showing a specific embodiment of a steel bar seismic strengthening structure 1 having a continuous integral forming stirrup. According to an embodiment of the present invention, the steel reinforced seismic strengthening structure 1 of the present invention having a continuous integral forming stirrup comprises a stirrup 12 and a plurality of main ribs 14. The stirrup 12 includes a plurality of surrounding portions 121 and at least one connecting portion 122. Each of the surrounding portions 121 is respectively located on a corresponding one of the beam planes Z ₁ , and the surrounding portions 121 are parallel to each other and perpendicular to each other. The beam planes Z _{1 are} spaced apart from each other, and each of the bundled portions 121 has at least one closed space 1211, and the adjacent two bundled portions 121 are connected by the connecting portion 122. The plurality of main ribs 14 are perpendicular to the surrounding planes Z ₁ and are respectively disposed in the corresponding closed spaces 1211.

Among them, the stirrup 12 is a continuous integrally formed steel bar. In one embodiment, the stirrup 12 is formed by bending a steel bar. In another embodiment, the stirrup 12 is formed by casting.

Referring to FIG. 2 and FIG. 3 , FIG. 2 is a schematic view showing a specific embodiment of the stirrup 12 of the steel seismic strengthening structure 1 of the present invention with continuous integrated forming stirrups. FIG. 3 is a schematic view showing the bundle portion 121 of FIG. In one embodiment, each of the bundles 121 includes at least one frame segment 1212 and at least one rib segment 1213. The frame segment 1212 is used to surround the main ribs 14 and the rib segments 1213 are staggered in the frame. Within the segment 1212, a closed space 1211 is formed. Each of the bundled portions 121 has at least one overlap region 1214, and the overlap region 1214 is an overlap portion of the frame segments 1212, the overlap portions of the tie segments 1213 or the frame segments 1212 and the tendons Segment 1213 is formed by overlapping portions. In an embodiment, the surrounding portions 121 in the stirrup 12 are a repeating unit, so the position of the overlapping portion 1214 in the surrounding portion 121 can be projected along the extending direction of the main rib 14 to the next bundle. The overlap region 1214 of 121, while each of the bundle portions 121 has the same relative position of the overlap regions 1214 in the same bundle portion 121. Referring to FIG. 4 and FIG. 5, FIG. 4 is a schematic view showing another embodiment of the stirrup 12 of the steel seismic strengthening structure 1 of the present invention having a continuous integral forming stirrup. FIG. 5 is a schematic view showing a bundle portion 121 of FIG. In another embodiment, although the bending manners of the adjacent two surrounding portions 121 in the stirrup 12 are somewhat different, the position of the overlapping portion 1214 in the front surrounding portion 121 cannot be directly projected to the next one in the extending direction of the main rib 14. The overlapping portion 1214 of the surrounding portion 121 is positioned, but because of its symmetry, the position of the overlapping portion 1214 in the surrounding portion 121 of the adjacent two surrounding portions 121 is regular. In another embodiment, each of the surrounding regions 121 on the stirrup 12 has the same structural form, but the adjacent two surrounding regions 121 are rotated at a fixed angle to overlap the front bundle portion 121. The position of the region 1214 cannot be directly projected to the position of the overlapping portion 1214 of the next bundle portion 121 in the direction in which the main rib 14 extends, but each of the bundle portions 121 still has the same overlap between the overlap regions 1214 in the same bundle portion 121. position. In still another embodiment, each of the bundle portions 121 on the stirrup 12 has a different structural composition, so that the position of the overlap region 1214 of the bundle portion 121 cannot be directly projected to the next bundle portion 121 in the direction in which the main rib 12 extends. overlapping region 1214, while the beam is in a different plane Z around two superposed regions such confinement portion 1214 121. ₁ also has on the different relative positions between each other.

Referring to FIG. 1 and FIG. 4 again, each of the bundled portions 121 has a bundle start point 1215 and a bundle end point 1216 at both ends, and the connecting portion 122 connects the bundle end point 1216 of the bundle portion 121 and the other bundle portion The starting point 1215 of the bundle is formed to form a continuous stirrup 12 structure. As shown in FIG. 1, in an embodiment, the starting points 1215 have the same direction and distance with respect to the same main rib 14. In another embodiment, as shown in FIG. 4, the bundle starting points 1215 have a different direction or a distance relative to the same main rib 14.

Referring to FIG. 6, FIG. 6 is a schematic view showing another embodiment of the steel reinforced seismic strengthening structure 1 of the present invention having continuous integral forming stirrups. In one embodiment, the bundle portion 121 of the overlap region 1214 has a cross-section 12141 and a pressure receiving portion 12142. The cross-section 12141 is connected to the connecting portion 122 by the bundle end point 1216, and the pressure receiving portion 12142 One side of the direction of the bundle portion 121 of the cross-pressure section 12141 is formed to form the overlap region 1214. The structure of the bundle portion 121 of the pressure receiving portion 12141 and the pressure receiving portion 12142 is such that when the stirrup 12 is subjected to the pulling force in the extending direction of the main rib 14, the distance between the two bundle portions 121 is not caused to change. In another embodiment, the overlapping area 1214 has more than one overlapping structure, so that when the stirrup 12 is subjected to the pulling force and tension along the extending direction of the main rib 14, the distance between the two surrounding portions 121 is not caused. change. The two adjacent bundles 121 are fixed at a distance by the connected connecting portion 122. In an embodiment, the equal spacing between adjacent two bundles 121 in the stirrup 12 is the same, for example, 10 cm, thereby producing a uniformly stressed steel seismic strengthening structure 1; In the example, the two bundles 121 of the steel reinforced seismic strengthening structure 1 have different spacings, thereby producing the effect of local strengthening.

Referring to FIG. 6 and FIG. 7 , FIG. 7 is a schematic view showing another embodiment of the stirrup of the steel bar seismic strengthening structure with continuous integral forming stirrups of the present invention. In practical applications, the connecting portion 122 can be parallel to the main ribs 14, so that the main ribs 14 can smoothly penetrate the stirrups 12 to be combined into the required steel reinforced seismic strengthening structure 1. Furthermore, the two ends of the stirrup 12 can have a curved hook 123 of not less than 135 degrees, respectively, for fixing to the corresponding main rib 14, thereby fixing the structure of the bundle portion 121 at both ends of the stirrup 12 It makes it difficult to loosen the structure due to time or external force. It should be noted that the position of the curved hook 123, the bundle start point 1215 or the bundle end point 1216 is not limited to the corner of the stirrup 12, and may be located on the side of the stirrup 12 as shown in FIG. The curved hook 123 can be placed anywhere in the seismic strengthening structure of the steel bar. At the same time, since the stirrup 12 and the main rib 14 can be separately prepared, only the main rib 14 is inserted into the closed space 1211 of the stirrup 12 and fixed to the position of the corresponding bundle portion 121 by welding or tying, thereby completing the steel bar. The seismic strengthening structure 1 enables the steel reinforced seismic strengthening structure 1 to be pre-assembled in the factory and then transported to the construction site, and a simple assembly procedure can be performed on the construction site to obtain the required steel seismic strengthening structure 1 The structural strength is not as expected due to the error between the surrounding portions 121 due to manual error or environmental external force.

Compared with the prior art, the seismic strengthening structure of the steel bar with continuous integral forming stirrups uses continuous and integrally formed stirrups to continuously transmit the stress of the steel seismic strengthening structure, thereby reducing the possibility of frustration; It can avoid the crisis that the structural strength of the spiral stirrups is not as expected due to improper artificial application or environmental factors. In addition, since only the main rib is inserted into the closed space of the stirrup and combined with the corresponding position of the surrounding beam, the required steel reinforced seismic strengthening structure can be completed, and deformation is not easy, so that the steel reinforced seismic strengthening structure can be pre-predicted. The group mode is completed, and a simple assembly procedure can be completed at the construction site, which reduces the difficulty of the application. Furthermore, since the steel reinforced seismic strengthening structure can be pre-assembled, the required components can be assembled directly after production, which reduces the possibility of component deformation, thereby improving the matching between each component in the steel reinforced seismic strengthening structure. Furthermore, since the steel reinforced seismic strengthening structure can be assembled in advance, the time elasticity and operational convenience of the quality assurance inspection are improved, thereby ensuring the structural strength of the steel reinforced seismic strengthening structure.

The features and spirit of the present invention are intended to be more apparent from the detailed description of the preferred embodiments. On the contrary, the intention is to cover various modifications and equivalents within the scope of the invention as claimed.

Claims (10)

 A steel reinforced seismic reinforced structure with continuous integrated forming stirrups, comprising: a stirrup comprising a plurality of surrounding portions and at least one connecting portion, each of the bundle portions being respectively located on a corresponding one of the bundle planes, The bundles are parallel to each other and are arranged at intervals perpendicular to the planes of the bundles, each bundle having at least one closed space, the adjacent two bundles being connected by the joint; and a plurality of main ribs, respectively The bundle planes are perpendicular to the corresponding enclosed spaces; wherein the stirrups are a continuously integrally formed steel bar.    The reinforced seismic strengthening structure of claim 1, wherein each of the bundles includes at least one frame segment and at least one rib segment, the at least one frame segment for surrounding the main ribs, At least one of the rib segments is staggered in the at least one frame segment to form the at least one enclosed space.    The steel reinforced seismic strengthening structure according to claim 2, wherein each of the bundled portions has at least one superimposed region, wherein the at least one superimposed region is overlapped by the frame segments, and the lacing segments overlap A portion or the frame segment is formed by overlapping the portion of the rib.    The steel reinforced seismic strengthening structure according to claim 3, wherein the overlapping regions on different converging planes have different relative positions.    The steel reinforced seismic strengthening structure according to claim 3, wherein each of the bundle portions has a bundle start point and a bundle end point, the connection portion connecting the bundle end portion of the bundle portion and another The starting point of the bundle around the bundle.    The steel reinforced seismic strengthening structure according to claim 5, wherein the starting point of the bundle has a different direction or a distance with respect to the same main rib.    The steel reinforced seismic strengthening structure according to claim 5, wherein the bundle portion in the overlap region has a cross-pressure section and a pressure-receiving section, and the cross-pressure section is connected to the bundle by the end of the bundle The portion is connected, and the pressure receiving portion is located on one side of the other bundle portion direction of the cross-pressure portion, thereby forming the overlapping portion.    The steel reinforced seismic strengthening structure according to claim 1, wherein the at least one connecting portion is parallel to the main ribs.    The steel reinforced seismic strengthening structure according to claim 1, wherein the adjacent two surrounding portions are fixed by a distance between the connecting portions.    The steel reinforced seismic strengthening structure according to the first aspect of the invention, wherein the two ends of the stirrup have a curved hook of not less than 135 degrees, respectively, for fastening the corresponding main rib.