CN202081576U - Constraint profile steel high-strength concrete column with fiber reinforced plastic-steel composite tube - Google Patents
Constraint profile steel high-strength concrete column with fiber reinforced plastic-steel composite tube Download PDFInfo
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 203
- 239000010959 steel Substances 0.000 title claims abstract description 203
- 239000011372 high-strength concrete Substances 0.000 title claims abstract description 85
- 239000002131 composite material Substances 0.000 title claims abstract description 64
- 239000000835 fiber Substances 0.000 title description 20
- 239000011151 fibre-reinforced plastic Substances 0.000 claims abstract description 21
- 229920002430 Fibre-reinforced plastic Polymers 0.000 claims abstract description 17
- 239000007787 solid Substances 0.000 claims abstract description 4
- 230000002787 reinforcement Effects 0.000 claims description 12
- 229920002748 Basalt fiber Polymers 0.000 claims description 4
- 229920006231 aramid fiber Polymers 0.000 claims description 4
- 239000004918 carbon fiber reinforced polymer Substances 0.000 claims description 2
- 239000011152 fibreglass Substances 0.000 claims description 2
- 230000006835 compression Effects 0.000 abstract description 8
- 238000007906 compression Methods 0.000 abstract description 8
- 239000011150 reinforced concrete Substances 0.000 abstract description 7
- 239000004567 concrete Substances 0.000 description 15
- 238000010586 diagram Methods 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 238000012946 outsourcing Methods 0.000 description 5
- 239000003513 alkali Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000011241 protective layer Substances 0.000 description 4
- 238000004804 winding Methods 0.000 description 4
- 230000007812 deficiency Effects 0.000 description 3
- 229920000049 Carbon (fiber) Polymers 0.000 description 2
- 239000004917 carbon fiber Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 229910000746 Structural steel Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 1
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Abstract
本实用新型公开了一种纤维增强塑料-钢复合管约束型钢高强混凝土柱，包括纵筋、箍筋、高强混凝土、型钢和纤维增强塑料-钢复合管，所述的纵筋沿柱子高度方向布设，在纵筋的高度方向上套设有环向箍筋，在箍筋内沿柱子高度方向布设有型钢，在箍筋外沿柱子高度方向套设有纤维增强塑料-钢复合管，所述的纤维增强塑料-钢复合管由作为内壁的钢管和作为外壁的纤维增强塑料管复合而成，纤维增强塑料-钢复合管内浇筑实心高强混凝土，纤维增强塑料-钢复合管在柱子两端末处断开。本实用新型提高了型钢高强混凝土柱的轴压比限值、抗震性能和钢管约束型钢高强混凝土柱的耐久性能；解决了钢管型钢高强混凝土柱用钢量大、与钢筋混凝土梁连接麻烦等问题。
The utility model discloses a fiber-reinforced plastic-steel composite pipe constrained steel high-strength concrete column, which comprises longitudinal bars, stirrups, high-strength concrete, shaped steel and fiber-reinforced plastic-steel composite pipes, and the longitudinal bars are arranged along the height direction of the column , a hoop stirrup is set in the height direction of the longitudinal bar, a section steel is arranged inside the stirrup along the height direction of the column, and a fiber-reinforced plastic-steel composite pipe is set outside the stirrup along the height direction of the column. The fiber-reinforced plastic-steel composite pipe is composed of a steel pipe as the inner wall and a fiber-reinforced plastic pipe as the outer wall. Solid high-strength concrete is poured inside the fiber-reinforced plastic-steel composite pipe, and the fiber-reinforced plastic-steel composite pipe is disconnected at both ends of the column . The utility model improves the limit value of the axial compression ratio of the steel high-strength concrete column, the anti-seismic performance and the durability of the steel pipe-constrained steel high-strength concrete column; it solves the problems of large steel consumption and troublesome connection with the reinforced concrete beam.
Description
技术领域 technical field
本实用新型属于一种土木工程结构构件，特别涉及一种型钢高强混凝土柱，尤其适用于海洋、潮湿和盐碱地等恶劣环境下的高层建筑、桥梁工程、地下工程及港口工程等。The utility model belongs to a civil engineering structural member, in particular to a steel high-strength concrete column, which is especially suitable for high-rise buildings, bridge projects, underground projects and port projects in harsh environments such as oceans, damp and saline-alkali lands.
背景技术 Background technique
高强混凝土具有强度高、变形小和耐久性好等优点，能适应现代工程结构向大跨、重载和高耸发展的需要，混凝土的高强化是现代混凝土结构发展的重要趋势。在高层结构中采用高强混凝土框架柱，可以有效的减少柱子截面，增加房屋的使用面积，提高框架柱的抗震性能等优点。优越的性能使得高强混凝土的应用范围不断扩大。High-strength concrete has the advantages of high strength, small deformation and good durability. It can meet the needs of modern engineering structures with large spans, heavy loads and high towers. The high strength of concrete is an important trend in the development of modern concrete structures. The use of high-strength concrete frame columns in high-rise structures can effectively reduce the column section, increase the usable area of the house, and improve the seismic performance of the frame columns. The superior performance makes the application range of high-strength concrete continuously expand.
然而，高强混凝土也有其致命的弱点，那就是高强混凝土的延性很差，很容易产生脆性破坏。而且，我国80％的国土面积属于抗震设防区(6度以上)，特别是高层建筑结构集中的城市，绝大多数处于抗震设防区，部分还处于高烈度地区，不宜采用高强混凝土结构。我国的《混凝土结构设计规范GB 50010》规定：当设防烈度为9度时，混凝土强度等级不宜超过C60，当设防烈度为8度时，混凝土强度等级不宜超过C70。这些规定限制了高强混凝土在地震区高层结构中的应用。However, high-strength concrete also has its fatal weakness, that is, high-strength concrete has poor ductility and is prone to brittle failure. Moreover, 80% of the country's land area belongs to the seismic fortification zone (above 6 degrees), especially in cities with concentrated high-rise building structures, most of which are in the seismic fortification zone, and some are still in high-intensity areas, so it is not suitable to use high-strength concrete structures. my country's "Code for Design of Concrete Structures GB 50010" stipulates that when the fortification intensity is 9 degrees, the concrete strength grade should not exceed C60, and when the fortification intensity is 8 degrees, the concrete strength grade should not exceed C70. These regulations limit the application of high-strength concrete in high-rise structures in earthquake zones.
在高强混凝土柱中加入型钢，组成型钢高强混凝土柱会明显改善高强混凝土柱的抗震性能。然而，目前通常采用的型钢高强混凝土柱存在以下不足：Adding section steel to the high-strength concrete column to form a section-steel high-strength concrete column will obviously improve the seismic performance of the high-strength concrete column. However, the steel high-strength concrete columns commonly used at present have the following deficiencies:
1.轴压比限值低。由于型钢位于型钢高强混凝土柱的中心，因此型钢不能对高强混凝土产生有效的约束；而且，型钢高强混凝土柱不能设置复合箍筋，因此型钢高强混凝土柱中的高强混凝土受到的约束非常小。当轴压比较大时，柱子在水平地震荷载作用下的延性很低，耗能能力很小，抗震性能很差。1. The axial pressure is lower than the limit value. Since the section steel is located in the center of the section steel high-strength concrete column, the section steel cannot effectively restrain the high-strength concrete; moreover, the section steel high-strength concrete column cannot be provided with composite stirrups, so the high-strength concrete in the section steel high-strength concrete column is subject to very little constraint. When the axial compression is relatively large, the ductility of the column under the horizontal earthquake load is very low, the energy dissipation capacity is small, and the seismic performance is poor.
2.地震荷载作用下易产生保护层脱落、纵筋和型钢翼缘失稳，震后难修复。型钢高强混凝土柱在地震荷载作用下容易产生保护层脱落、纵筋和型钢翼缘失稳的现象，导致承载力降低，抗震性能较差，且震后难以修复。2. Under the action of earthquake load, it is easy to cause the protective layer to fall off, the longitudinal reinforcement and the steel flange to lose stability, and it is difficult to repair after the earthquake. High-strength concrete columns with section steel are prone to fall off of protective layer and instability of longitudinal reinforcement and section steel flange under earthquake load, resulting in reduced bearing capacity, poor seismic performance, and difficult to repair after earthquake.
为了克服型钢高强混凝土柱的上述不足，在型钢高强混凝土柱中引入钢管，形成钢管型钢高强混凝土柱，可提高型钢高强混凝土柱的轴压比限值，使型钢高强混凝土柱在应用中不再限制轴压比；可提高型钢高强混凝土柱的抗震性能，使型钢高强混凝土柱能够在高烈度地震区的高层结构中应用；可保护型钢高强混凝土柱的保护层，阻止纵筋和型钢翼缘失稳的过早出现。In order to overcome the above-mentioned deficiencies of steel high-strength concrete columns, steel pipes are introduced into steel high-strength concrete columns to form steel-pipe steel high-strength concrete columns, which can increase the axial compression ratio limit of steel high-strength concrete columns, so that steel high-strength concrete columns are no longer limited in application. Axial compression ratio; can improve the seismic performance of high-strength steel concrete columns, so that high-strength steel concrete columns can be used in high-rise structures in high-intensity earthquake areas; can protect the protective layer of high-strength steel concrete columns, and prevent longitudinal reinforcement and steel flanges from losing stability appeared prematurely.
然而，钢管型钢高强混凝土柱却存在着用钢量大、与钢筋混凝土梁连接麻烦、钢管容易失稳等问题。However, high-strength concrete columns with steel pipe sections have problems such as large steel consumption, troublesome connection with reinforced concrete beams, and easy instability of steel pipes.
为了解决钢管型钢高强混凝土柱的上述问题，可采用钢管约束型钢高强混凝土柱，即其外包钢管不承受竖向荷载(不承受轴力和弯矩)，只对核心型钢高强混凝土柱提供横向的约束作用并承受水平剪力。钢管约束型钢高强混凝土柱所带来的效果是：由于外包钢管不再承受竖向荷载，因此用钢量会减少，同时也改善了钢管容易失稳的问题；由于外包钢管在柱子两端末处断开，于是解决了与钢筋混凝土梁连接麻烦的问题。In order to solve the above-mentioned problems of steel pipe-shaped steel high-strength concrete columns, steel pipe-constrained steel high-strength concrete columns can be used, that is, the outer steel pipes do not bear vertical loads (do not bear axial force and bending moment), and only provide horizontal constraints for the core steel high-strength concrete columns act and withstand horizontal shear forces. The effect brought by steel pipe-constrained high-strength concrete columns is: because the outsourcing steel pipe no longer bears the vertical load, the steel consumption will be reduced, and the problem of easy instability of the steel pipe is also improved; since the outsourcing steel pipe is broken at both ends of the column Open, thus solving the troublesome problem of connecting with reinforced concrete beams.
然而，在海洋、潮湿和盐碱地等恶劣环境中应用钢管型钢高强混凝土柱和钢管约束型钢高强混凝土柱时，其外包钢管都需要刷防腐涂料或采用特殊的防腐蚀措施，这样极大地增加了工程造价和技术难度，同时后期维护费用也比较高。因此，亟须要发展低成本、高耐久性的型钢高强混凝土柱结构。However, when steel pipe-shaped steel high-strength concrete columns and steel pipe-bound steel high-strength concrete columns are used in harsh environments such as oceans, humidity, and saline-alkali land, the outsourcing steel pipes need to be coated with anti-corrosion coatings or special anti-corrosion measures, which greatly increases the project cost. and technical difficulty, and the post-maintenance cost is also relatively high. Therefore, there is an urgent need to develop low-cost, high-durability steel high-strength concrete column structures.
发明内容 Contents of the invention
为了克服现有型钢高强混凝土柱、钢管型钢高强混凝土柱和钢管约束型钢高强混凝土柱的上述缺点和不足，本实用新型要提供一种具有抗震性能好、施工方便和高耐久性，特别适用于海洋、潮湿和盐碱地等恶劣环境下的高层建筑、桥梁工程、地下工程及港口工程等的纤维增强塑料-钢复合管约束型钢高强混凝土柱。In order to overcome the above-mentioned shortcomings and deficiencies of the existing steel high-strength concrete columns, steel pipe steel high-strength concrete columns and steel pipe-constrained steel high-strength concrete columns, the utility model will provide a kind of anti-seismic performance, convenient construction and high durability, especially suitable for marine Fiber-reinforced plastic-steel composite tube-bound steel high-strength concrete columns for high-rise buildings, bridge engineering, underground engineering, and port engineering in harsh environments such as wet and saline-alkali land.
本实用新型通过以下技术方案实现：The utility model is realized through the following technical solutions:
一种纤维增强塑料-钢复合管约束型钢高强混凝土柱，包括纵筋、箍筋、高强混凝土、型钢和纤维增强塑料-钢复合管，所述的纵筋沿柱子高度方向布设，在纵筋的高度方向上套设有环向箍筋，在箍筋内沿柱子高度方向布设有型钢，在箍筋外沿柱子高度方向套设有纤维增强塑料-钢复合管，所述的纤维增强塑料-钢复合管由作为内壁的钢管和作为外壁的纤维增强塑料管复合而成，纤维增强塑料-钢复合管内浇筑实心高强混凝土，纤维增强塑料-钢复合管在柱子两端末处断开。A fiber-reinforced plastic-steel composite pipe-constrained steel high-strength concrete column, including longitudinal bars, stirrups, high-strength concrete, shaped steel, and fiber-reinforced plastic-steel composite pipes. The longitudinal bars are arranged along the height direction of the column. A hoop stirrup is set in the height direction, a section steel is arranged inside the stirrup along the height direction of the column, and a fiber-reinforced plastic-steel composite pipe is set outside the stirrup along the height direction of the column, and the fiber-reinforced plastic-steel The composite pipe is composed of a steel pipe as the inner wall and a fiber-reinforced plastic pipe as the outer wall. Solid high-strength concrete is poured into the fiber-reinforced plastic-steel composite pipe, and the fiber-reinforced plastic-steel composite pipe is disconnected at both ends of the column.
本实用新型所述的纤维增强塑料-钢复合管为圆管、方管或矩形管。The fiber reinforced plastic-steel composite pipe described in the utility model is a round pipe, a square pipe or a rectangular pipe.
本实用新型所述的型钢为H型钢或十字形型钢。The shaped steel described in the utility model is an H shaped steel or a cross shaped steel.
本实用新型所述的纵筋为钢筋或纤维增强塑料-钢复合筋。The longitudinal bars described in the utility model are steel bars or fiber reinforced plastic-steel composite bars.
本实用新型所述的纤维增强塑料是玻璃纤维增强塑料、碳纤维增强塑料、玄武岩纤维增强塑料或芳纶纤维增强塑料。The fiber reinforced plastics described in the utility model are glass fiber reinforced plastics, carbon fiber reinforced plastics, basalt fiber reinforced plastics or aramid fiber reinforced plastics.
本实用新型所述的纤维增强塑料是玻璃纤维、碳纤维、玄武岩纤维和芳纶纤维这四种纤维按一定比例混杂的混合纤维增强塑料。The fiber-reinforced plastic described in the utility model is a mixed fiber-reinforced plastic in which four kinds of fibers, glass fiber, carbon fiber, basalt fiber and aramid fiber, are mixed in a certain proportion.
与现有技术相比，本实用新型的核心是采用纤维增强塑料-钢复合管替换钢管来约束型钢高强混凝土柱，提高钢管约束型钢高强混凝土柱的耐久性能，且其外包复合管不承受轴向荷载，只对核心型钢高强混凝土柱提供横向的约束作用并承受水平剪力。Compared with the prior art, the core of this utility model is to replace steel pipes with fiber-reinforced plastic-steel composite pipes to constrain high-strength steel concrete columns, so as to improve the durability of steel pipe-constrained high-strength concrete columns, and the outer composite pipes do not bear axial The load only provides lateral restraint to the core steel high-strength concrete column and bears the horizontal shear force.
本实用新型与普通型钢高强混凝土柱相比，具有以下优点和效果：Compared with ordinary steel high-strength concrete columns, the utility model has the following advantages and effects:
1.纤维增强塑料-钢复合管约束型钢高强混凝土柱可不限制轴压比，使型钢高强混凝土柱在应用中不再受限于轴压比，即在高轴压比条件下型钢高强混凝土柱依然具有良好的抗震性能。1. The fiber-reinforced plastic-steel composite tube confines the steel high-strength concrete column without restricting the axial compression ratio, so that the application of the steel high-strength concrete column is no longer limited by the axial compression ratio. It has good anti-seismic performance.
2.防止地震荷载作用下高强混凝土保护层剥落、钢筋和型钢翼缘失稳，震后易修复。地震荷载作用下，型钢高强混凝土柱的端部混凝土被压溃、钢筋和型钢翼缘失稳，震后很难修复；而纤维增强塑料-钢复合管约束型钢高强混凝土柱的震后破坏现象不明显，震后易修复。2. Prevent the peeling of the high-strength concrete protective layer and the instability of the steel bars and steel flanges under the earthquake load, and it is easy to repair after the earthquake. Under the action of earthquake load, the concrete at the end of the steel high-strength concrete column is crushed, the steel bars and the steel flange are unstable, and it is difficult to repair after the earthquake; while the post-earthquake failure phenomenon of the fiber-reinforced plastic-steel composite tube-confined steel high-strength concrete column is not obvious. Obviously, it is easy to repair after the earthquake.
3.耐久性能好。由于纤维增强塑料具有优异的耐久性能，因此纤维增强塑料-钢复合管约束型钢高强混凝土柱的耐久性能良好。3. Good durability. Due to the excellent durability of fiber-reinforced plastics, the durability of fiber-reinforced plastic-steel composite tube-confined steel high-strength concrete columns is good.
本实用新型与钢管型钢高强混凝土柱相比，具有以下优点和效果：Compared with the high-strength concrete column of steel pipe section steel, the utility model has the following advantages and effects:
1.用钢量小，避免轴压中局部屈曲破坏。纤维增强塑料管的外包约束不仅可以减少钢管的用钢量，还可以抑制钢管的局部屈曲；同时，纤维增强塑料-钢复合管约束型钢高强混凝土柱中复合管在柱子两端末处断开，即复合管不再承受轴向荷载，进一步减少了用钢量，并且避免了钢管混凝土柱中易发生的轴压局部屈曲。1. The amount of steel used is small to avoid local buckling damage during axial compression. The outsourcing constraint of fiber-reinforced plastic pipes can not only reduce the steel consumption of steel pipes, but also restrain the local buckling of steel pipes; at the same time, the composite pipes in fiber-reinforced plastic-steel composite pipe-constrained steel high-strength concrete columns are disconnected at both ends of the column, that is, The composite pipe no longer bears the axial load, which further reduces the amount of steel used, and avoids the local buckling of the axial compression that is easy to occur in the CFST column.
2.与钢筋混凝土梁连接简单。由于纤维增强塑料-钢复合管约束型钢高强混凝土柱中复合管在柱子两端末处断开，因此其与钢筋混凝土梁的连接等同于普通型钢高强混凝土柱与钢筋混凝土梁的连接，连接方法简单便于施工。2. Simple connection with reinforced concrete beams. Since the fiber-reinforced plastic-steel composite tube constrains the steel high-strength concrete column, the composite tube is disconnected at both ends of the column, so its connection with the reinforced concrete beam is equivalent to the connection between the ordinary steel high-strength concrete column and the reinforced concrete beam, and the connection method is simple and convenient construction.
3.耐久性能好。由于纤维增强塑料具有优异的耐久性能，因此纤维增强塑料-钢复合管约束型钢高强混凝土柱的耐久性能良好。3. Good durability. Due to the excellent durability of fiber-reinforced plastics, the durability of fiber-reinforced plastic-steel composite tube-confined steel high-strength concrete columns is good.
本实用新型与钢管约束型钢高强混凝土柱相比，具有以下优点和效果：Compared with steel pipe-constrained steel high-strength concrete columns, the utility model has the following advantages and effects:
1.耐久性能好。由于纤维增强塑料具有优异的耐久性能，在钢管外表面复合纤维增强塑料管，使纤维增强塑料-钢复合管约束型钢高强混凝土柱具有良好的耐久性能，特别适用于海洋、潮湿和盐碱地等恶劣环境下的工程应用。1. Good durability. Due to the excellent durability of fiber-reinforced plastics, fiber-reinforced plastic pipes are compounded on the outer surface of steel pipes, so that fiber-reinforced plastic-steel composite pipe-constrained steel high-strength concrete columns have good durability, and are especially suitable for harsh environments such as oceans, humidity, and saline-alkali land. Under the engineering application.
2.纤维增强塑料管的外包约束不仅能减少钢管的用钢量，还可有效延缓钢管焊缝的开裂等破坏形式。2. The outsourcing constraint of fiber-reinforced plastic pipes can not only reduce the steel consumption of steel pipes, but also effectively delay the damage forms such as cracking of steel pipe welds.
附图说明 Description of drawings
本实用新型共有附图11张，其中：The utility model has 11 accompanying drawings, wherein:
图1为本实用新型的结构示意图。Fig. 1 is the structural representation of the utility model.
图2为型钢的结构示意图。Figure 2 is a schematic diagram of the structure of the section steel.
图3为本实用新型的圆形结构钢筋骨架示意图。Fig. 3 is a schematic diagram of a steel bar skeleton of a circular structure of the present invention.
图4为本实用新型的圆形结构(H型钢)示意图。Fig. 4 is a schematic diagram of a circular structure (H-shaped steel) of the present invention.
图5为本实用新型的方形结构钢筋骨架示意图Fig. 5 is the schematic diagram of the steel bar skeleton of square structure of the present utility model
图6为本实用新型的方形结构(H型钢)示意图。Fig. 6 is a schematic diagram of a square structure (H-shaped steel) of the present invention.
图7为本实用新型的矩形结构钢筋骨架示意图Fig. 7 is the schematic diagram of the rectangular structural steel skeleton of the present utility model
图8为本实用新型的矩形结构(H型钢)示意图。Fig. 8 is a schematic diagram of a rectangular structure (H-shaped steel) of the present invention.
图9为本实用新型的圆形结构(十字形型钢)示意图。Fig. 9 is a schematic diagram of a circular structure (cross-shaped steel) of the present invention.
图10为本实用新型的方形结构(十字形型钢)示意图。Fig. 10 is a schematic diagram of a square structure (cross-shaped steel) of the present invention.
图11为本实用新型的矩形结构(十字形型钢)示意图。Fig. 11 is a schematic diagram of a rectangular structure (cross-shaped steel) of the present invention.
图中：1.纵筋；2.箍筋；3.高强混凝土；4.钢管；5.纤维增强塑料管；6.型钢。In the figure: 1. Longitudinal bars; 2. Stirrup bars; 3. High-strength concrete; 4. Steel pipes; 5. Fiber-reinforced plastic pipes; 6. Section steel.
具体实施方式 Detailed ways
下面参照附图对本实用新型进行详细说明。The utility model is described in detail below with reference to accompanying drawing.
本实用新型的纤维增强塑料-钢复合管约束型钢高强混凝土柱是由纵筋1、箍筋2、高强混凝土3、纤维增强塑料-钢复合管和型钢6组成，其中柱截面可分为圆形、方形和矩形结构；型钢6可分为H型钢和十字形型钢。The fiber-reinforced plastic-steel composite tube constrained steel high-strength concrete column of the utility model is composed of
实施例1Example 1
如图1-4所示，本实用新型给出的纤维增强塑料-钢复合管约束型钢高强混凝土柱截面为圆形结构，主要由纵筋1、箍筋2、高强混凝土3、圆形纤维增强塑料-钢复合管和H型钢6组成。本实施例的具体制作方法如下：As shown in Figures 1-4, the section of the fiber-reinforced plastic-steel composite pipe-constrained steel high-strength concrete column provided by the utility model is a circular structure, which is mainly reinforced by
A、纵筋1沿柱子高度方向布设，纵筋1是钢筋1或纤维增强塑料-钢复合筋；A. The
B、在纵筋1的高度方向上套设有环向箍筋2；B. The
C、在箍筋2内沿柱子高度方向布设有型钢6，型钢6可采用热轧型钢或焊接型钢；C. A
D、在箍筋2外沿柱子高度方向套设有纤维增强塑料-钢复合管，复合管在柱子两端末处断开，该复合管由作为内壁的钢管4和作为外壁的纤维增强塑料管5复合而成，钢管4由钢板焊接而成，纤维增强塑料管5由缠绕工艺制作，将钢管4作为缠绕模具，采用连续纤维纱经缠绕工艺制作纤维增强塑料管5，缠绕完毕，纤维增强塑料-钢复合管也同时制作完成，所用纤维是玻璃纤维、碳纤维、玄武岩纤维、芳纶纤维或这四种纤维按一定比例混杂的混合纤维；D. A fiber-reinforced plastic-steel composite pipe is set outside the
E、纤维增强塑料-钢复合管内浇筑实心高强混凝土3，混凝土宜采用标号大于C60的高强混凝土3。E. Solid high-
实施例2Example 2
如图5和6所示，本实用新型的纤维增强塑料-钢复合管约束型钢高强混凝土柱截面为方形结构，主要由纵筋1、箍筋2、高强混凝土3、方形纤维增强塑料-钢复合管和H型钢6组成，其具体制作方法与实施例1相同。As shown in Figures 5 and 6, the section of the fiber reinforced plastic-steel composite pipe-constrained steel high-strength concrete column of the present invention is a square structure, mainly composed of
实施例3Example 3
如图7和8所示，本实用新型的纤维增强塑料-钢复合管约束型钢高强混凝土柱截面为矩形结构，主要由纵筋1、箍筋2、高强混凝土3、矩形纤维增强塑料-钢复合管和H型钢6组成，其具体制作方法与实施例1相同。As shown in Figures 7 and 8, the section of the fiber reinforced plastic-steel composite pipe-constrained steel high-strength concrete column of the present invention is a rectangular structure, mainly composed of
实施例4Example 4
如图3和9所示，本实用新型的纤维增强塑料-钢复合管约束型钢高强混凝土柱截面为圆形结构，主要由纵筋1、箍筋2、高强混凝土3、圆形纤维增强塑料-钢复合管和十字形型钢6组成，其具体制作方法与实施例1相同。As shown in Figures 3 and 9, the section of the fiber reinforced plastic-steel composite pipe-constrained steel high-strength concrete column of the present invention is a circular structure, mainly composed of
实施例5Example 5
如图5和10所示，本实用新型的纤维增强塑料-钢复合管约束型钢高强混凝土柱截面为方形结构，主要由纵筋1、箍筋2、高强混凝土3、方形纤维增强塑料-钢复合管和十字形型钢6组成，其具体制作方法与实施例1相同。As shown in Figures 5 and 10, the section of the fiber reinforced plastic-steel composite pipe-constrained steel high-strength concrete column of the present invention is a square structure, mainly composed of
实施例6Example 6
如图7和11所示，本实用新型的这种纤维增强塑料-钢复合管约束型钢高强混凝土柱截面为矩形结构，主要由纵筋1、箍筋2、高强混凝土3、矩形纤维增强塑料-钢复合管和十字形型钢6组成，其具体制作方法与实施例1相同。As shown in Figures 7 and 11, the section of the fiber reinforced plastic-steel composite pipe-constrained steel high-strength concrete column of the present utility model is a rectangular structure, mainly composed of
由于纤维增强塑料-钢复合管在柱子两端末断开，本实用新型的纤维增强塑料-钢复合管约束型钢高强混凝土柱与钢筋混凝土梁或其它结构形式梁的连接采用已有规范规定的连接方式即可。Since the fiber-reinforced plastic-steel composite pipe is disconnected at both ends of the column, the connection between the fiber-reinforced plastic-steel composite pipe-constrained steel high-strength concrete column of the utility model and the reinforced concrete beam or other structural beams adopts the connection method stipulated in existing specifications That's it.
Claims (5)
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| CN2011200529498U CN202081576U (en) | 2011-03-02 | 2011-03-02 | Constraint profile steel high-strength concrete column with fiber reinforced plastic-steel composite tube |
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| CN2011200529498U CN202081576U (en) | 2011-03-02 | 2011-03-02 | Constraint profile steel high-strength concrete column with fiber reinforced plastic-steel composite tube |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104358353A (en) * | 2014-10-28 | 2015-02-18 | 四川华铁钢结构有限公司 | Light corrosion-resistant composite steel structure beam |
| CN105625609A (en) * | 2016-01-29 | 2016-06-01 | 广东工业大学 | Composite shear wall embedded with fiber-reinforced plastic (FRP) confined metal tubes |
| CN111456242A (en) * | 2020-04-20 | 2020-07-28 | 南京林业大学 | Recycled raw material combined component for I-shaped steel and preparation method |
| CN113174827A (en) * | 2021-05-11 | 2021-07-27 | 福建省交通科研院有限公司 | Continuous rigid frame bridge of low mound |
-
2011
- 2011-03-02 CN CN2011200529498U patent/CN202081576U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104358353A (en) * | 2014-10-28 | 2015-02-18 | 四川华铁钢结构有限公司 | Light corrosion-resistant composite steel structure beam |
| CN105625609A (en) * | 2016-01-29 | 2016-06-01 | 广东工业大学 | Composite shear wall embedded with fiber-reinforced plastic (FRP) confined metal tubes |
| CN111456242A (en) * | 2020-04-20 | 2020-07-28 | 南京林业大学 | Recycled raw material combined component for I-shaped steel and preparation method |
| CN113174827A (en) * | 2021-05-11 | 2021-07-27 | 福建省交通科研院有限公司 | Continuous rigid frame bridge of low mound |
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