CN101748829A - Combined shear wall with concealed strip multi-cavity core plate of steel pipes and concrete - Google Patents
Combined shear wall with concealed strip multi-cavity core plate of steel pipes and concrete Download PDFInfo
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 192
- 239000010959 steel Substances 0.000 title claims abstract description 192
- 239000004567 concrete Substances 0.000 title claims abstract description 45
- 239000002131 composite material Substances 0.000 claims abstract description 27
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- 238000010276 construction Methods 0.000 abstract description 5
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Abstract
内藏条状多腔钢管混凝土芯板组合剪力墙，属于建筑领域，特别涉及钢管混凝土叠合柱边框一内藏条状多腔钢管混凝土组合剪力墙及其制作方法。这种组合剪力墙由钢管叠合柱边框约束和外包混凝土内藏条状多腔钢管组合剪力墙结构构成，在组合多腔墙板中配置纵钢板和横钢板，之后在组合的多腔钢板两侧配置横向和纵向分布钢筋组成的钢筋网，通过栓钉将钢板与两侧的钢筋混凝土连接起来，最后浇注成型。本发明可以提高承载能力，有降低墙厚，减慢承载力和刚度的衰减速度，增强筒体或墙体的延性性能。
The utility model relates to a composite shear wall with a built-in strip-shaped multi-cavity steel pipe concrete core plate, which belongs to the field of construction, and particularly relates to a frame of a steel pipe concrete composite column-a built-in strip-shaped multi-cavity steel pipe concrete composite shear wall and a manufacturing method thereof. This kind of composite shear wall is composed of frame constraints of steel pipe laminated columns and strip-shaped multi-cavity steel pipe composite shear wall structure built in outsourcing concrete. Longitudinal steel plates and horizontal steel plates are arranged in the composite multi-cavity wall panels, and then the combined multi-cavity Both sides of the steel plate are equipped with a reinforcement mesh composed of horizontal and vertical distributed steel bars, and the steel plate is connected with the reinforced concrete on both sides by pegs, and finally cast into shape. The invention can improve the bearing capacity, reduce the thickness of the wall, slow down the attenuation speed of the bearing capacity and rigidity, and enhance the ductility of the cylinder or the wall.
Description
技术领域technical field
本发明是一种组合式的剪力墙，属于建筑领域，特别涉及钢管叠合柱边框-内藏条状多腔钢管混凝土组合剪力墙及其制作方法。The invention relates to a combined shear wall, which belongs to the field of construction, and in particular relates to a steel pipe laminated column frame-built-in strip-shaped multi-cavity steel pipe concrete composite shear wall and a manufacturing method thereof.
背景技术Background technique
目前，我国高层建筑和超高层建筑越来越多，建筑的不规则性和复杂性也越来越普遍。国内，混合结构就成了这一类结构的首选结构体系，型钢具有高强度和大变形的特点，将型钢埋入高强混凝土的型钢混凝土结构，型钢与混凝土之间通过粘结力和剪切粘结件使他们紧密地结合在一起，充分发挥型钢的特点，避免其缺点。型钢混凝土结构能极大的减小截面面积和自重。为了有效改善和优化钢筋混凝土结构抗震性能，高层建筑采用型钢混凝土组合结构，还可以较好的实现建筑使用功能、结构抗震性能和结构经济指标三者之间的协调统一。型钢混凝土结构是我国建筑行业十项推广技术之一和建筑结构“十五”规划重点推广应用方向，在我国未来的建筑领域具有良好的发展前景。通过现在的实验研究和理论分析发现钢管混凝土柱可以提供更大的承载力和更好的延性，在相同承载力作用下，受力性能优势明显。剪力墙和由剪力墙组成的筒体是高层建筑抗震的核心部分，剪力墙结构的抗震性能对于高层建筑的安全可靠有着至关重要的作用。而且高层和超高层建筑对剪力墙及由剪力墙组成的筒体的抗震性能要求也越来越高。许多研究者相继提出了开水平缝剪力墙、开周边缝剪力墙、开阶梯状水平缝剪力墙、剪力墙中设置耗能材料等。这些措施对剪力墙延性的改善或是承载力的提高都有一定的作用和贡献。但是在建设超高层建筑时又面临着一个问题就是如果高度高，自重大，结构底部的墙体厚度就要随之增加，这样建筑方面不可能接受很厚的墙厚，而且给人的舒适度也不是很好。由此需要在进步中求创新，提出新的设计思想解决建筑领域面临的新问题。At present, there are more and more high-rise buildings and super high-rise buildings in our country, and the irregularity and complexity of buildings are becoming more and more common. In China, the hybrid structure has become the preferred structural system for this type of structure. Sectional steel has the characteristics of high strength and large deformation. The section steel is embedded in high-strength concrete. Knots make them tightly combined, give full play to the characteristics of section steel, and avoid its shortcomings. The steel concrete structure can greatly reduce the cross-sectional area and self-weight. In order to effectively improve and optimize the seismic performance of reinforced concrete structures, high-rise buildings adopt steel-concrete composite structures, which can also better realize the coordination and unity of building use functions, structural seismic performance and structural economic indicators. Steel concrete structure is one of the ten popularization technologies in my country's construction industry and the key promotion and application direction of the "Tenth Five-Year Plan" plan for building structures. It has a good development prospect in the future construction field of our country. Through the current experimental research and theoretical analysis, it is found that the CFST column can provide greater bearing capacity and better ductility. Under the same bearing capacity, the mechanical performance has obvious advantages. The shear wall and the cylinder composed of the shear wall are the core parts of the high-rise building's seismic resistance, and the seismic performance of the shear wall structure plays a vital role in the safety and reliability of the high-rise building. Moreover, high-rise and super high-rise buildings have higher and higher requirements on the seismic performance of shear walls and cylinders composed of shear walls. Many researchers have successively proposed shear walls with open horizontal seams, shear walls with open perimeter seams, shear walls with stepped horizontal seams, and energy-dissipating materials in shear walls. These measures have a certain effect and contribution to the improvement of the ductility of the shear wall or the improvement of the bearing capacity. However, when building super high-rise buildings, there is another problem that if the height is high and the self-heavy, the thickness of the wall at the bottom of the structure will increase accordingly. In this way, it is impossible for the building to accept a very thick wall thickness, and it will give people more comfort. Not great either. Therefore, it is necessary to seek innovation in progress and put forward new design ideas to solve new problems in the field of architecture.
发明内容Contents of the invention
本发明为解决上述的技术问题，提出了一种钢管叠合柱边框-内藏条状多腔钢管混凝土组合剪力墙，该带叠合柱边框内藏条状多腔组合剪力墙可显著提高剪力墙的延性和抗震耗能的能力，而且可以有效解决建筑无法接受的墙厚过厚的问题。In order to solve the above-mentioned technical problems, the present invention proposes a steel pipe laminated column frame-built-in strip-shaped multi-cavity composite shear wall of steel pipe concrete, which can significantly Improve the ductility and seismic energy dissipation capacity of the shear wall, and can effectively solve the problem of unacceptable wall thickness in buildings.
为了实现上述目的，本发明提出了内藏条状多腔钢管混凝土芯板组合剪力墙，由结构单元延展构成，其结构单元由钢结构框架及框架内的由多层垂直走向的纵横钢板构成的结构腔、并浇筑混凝土构成。In order to achieve the above purpose, the present invention proposes a built-in strip-shaped multi-cavity steel tube concrete core plate composite shear wall, which is formed by the extension of the structural unit, and its structural unit is composed of a steel structure frame and vertical and horizontal steel plates in the frame. The structural cavity is constructed by pouring concrete.
所述钢结构框架由上、下边框梁和两侧的与边框梁固结的边框柱构成；所述结构腔中纵钢板沿墙面走向设置，依墙体厚度平行均匀设置2至3张，并与上、下边框梁和两侧的边框柱固结，横钢板垂直纵钢板设置，依边框柱跨度平行均匀设置若干张，分别穿过纵钢板并与纵钢板固结，其宽度不大于墙体厚度，其数量按照横钢板相邻间距为不超过墙厚的3倍为宜。其中，横钢板可以沿纵钢板上下通长设置，也可以上下分段设置。The steel structure frame is composed of upper and lower frame beams and frame columns consolidated with the frame beams on both sides; the longitudinal steel plates in the structure cavity are arranged along the direction of the wall surface, and 2 to 3 sheets are evenly arranged in parallel according to the thickness of the wall. And it is consolidated with the upper and lower frame beams and the frame columns on both sides. The horizontal steel plates are arranged perpendicular to the vertical steel plates, and several sheets are evenly arranged parallel to the span of the frame columns. They pass through the longitudinal steel plates and are consolidated with the vertical steel plates. It is advisable that the number should be no more than 3 times the wall thickness according to the distance between adjacent horizontal steel plates. Wherein, the horizontal steel plate can be arranged along the vertical length of the vertical steel plate, and can also be arranged in sections up and down.
所述边框梁为型钢梁；所述边框柱为钢管柱，且钢管柱为方钢管或圆钢管。其中型钢梁包括工字钢、槽钢。The frame beam is a shaped steel beam; the frame column is a steel pipe column, and the steel pipe column is a square steel pipe or a round steel pipe. Among them, the steel beams include I-beams and channel steels.
另外，在结构腔的外层钢板外侧以及边框柱的钢管外侧均匀设有若干向外突出的栓钉，以便使钢框架和结构腔与混凝土更稳定结合。在结构单元外围还设有沿水平方向布置的横向钢筋和沿竖直方向布置的纵向钢筋组成的钢筋网，保证混凝土结实。In addition, a number of outwardly protruding pegs are evenly provided on the outside of the outer steel plate of the structural cavity and the steel pipe of the frame column, so as to make the steel frame and the structural cavity more stably combined with the concrete. On the periphery of the structural unit, there is also a reinforcement mesh composed of transverse reinforcement arranged in the horizontal direction and longitudinal reinforcement arranged in the vertical direction to ensure the strength of the concrete.
下面介绍一种上述结构单元的制作方法，该方法是按照以下顺序实现的：A method for making the above-mentioned structural unit is introduced below, and the method is realized in the following order:
1)制作边框柱的钢管柱，在钢管柱上焊接栓钉和竖向的可与钢筋网连接的钢板条。1) Make the steel pipe column of the frame column, weld the studs and the vertical steel strips that can be connected with the steel mesh on the steel pipe column.
2)制作型钢梁，将型钢梁与钢管柱进行固结。2) Make shaped steel beams, and consolidate the shaped steel beams with steel pipe columns.
3)制作条状结构腔，预设多块纵钢板和横钢板，纵钢板大小与边框柱和型钢梁构成的框架一致，在纵钢板上开均匀平行的竖槽，竖槽间距为不超过墙体厚度的三倍，竖槽长度可以上下贯通，也可以分成上下两段或是更多分段；横钢板的大小为宽度不大于墙体厚度，长度与竖槽长度一致，将横钢板插进竖槽中，并与纵钢板焊接，形成条状结构腔；纵钢板外侧焊接栓钉。3) Make a strip-shaped structure cavity, preset multiple longitudinal steel plates and horizontal steel plates, the size of the longitudinal steel plates is consistent with the frame formed by the frame columns and steel beams, and evenly parallel vertical grooves are opened on the longitudinal steel plates, and the distance between the vertical grooves should not exceed Three times the thickness of the wall, the length of the vertical groove can run through up and down, or can be divided into two or more sections; the size of the horizontal steel plate is not greater than the thickness of the wall, and the length is consistent with the length of the vertical groove into the vertical groove, and welded with the longitudinal steel plate to form a strip structure cavity; the outer side of the longitudinal steel plate is welded with studs.
4)将条状结构腔与型钢梁和钢管柱组成的框架进行焊接。4) Weld the strip structure cavity with the frame composed of shaped steel beams and steel pipe columns.
5)绑扎钢筋，在钢管柱外侧绑扎纵向钢筋和箍筋，在型钢梁外侧绑扎纵向钢筋和箍筋，在条状结构腔外侧绑扎水平钢筋和竖向钢筋。5) Binding of steel bars, binding of longitudinal steel bars and stirrups on the outside of the steel pipe column, binding of longitudinal steel bars and stirrups on the outside of the shaped steel beam, and binding of horizontal steel bars and vertical steel bars on the outside of the strip structure cavity.
6)在边框柱、边框梁、和条状结构腔外侧预留保护层，支模板。6) Reserve a protective layer and formwork on the outside of the frame column, frame beam, and strip structure cavity.
7)浇筑混凝土，成型后即形成一个结构单元。7) Concrete is poured, and a structural unit is formed after molding.
本发明利用钢管混凝土的优势和钢板组合剪力墙的优势，有利于提高剪力墙作为抗震第一道防线的抗剪承载力，延性以及耗能能力，墙体中配置多层钢板可以有效的减少墙体厚度，钢板形成的腔体中浇注混凝土，在多腔和钢管作用下，还可以对腔内的混凝土形成约束，提高混凝土的抗压强度。条状多腔钢管混凝土组合剪力墙在工作过程中，由于钢板的设计，使钢板两侧的混凝土部分得以连接，从而更好的共同工作。钢板中的横钢板还可以增加钢板墙体的面外约束，以防止钢板屈曲的发生，条状结构腔外部还配有钢筋混凝土，可以对钢板形成面外约束，配置的钢筋网可以控制裂缝的开展、也能起到防火、保温等功效，可以较少后续工程建设的造价。The present invention utilizes the advantages of steel pipe concrete and steel plate combined shear wall, which is beneficial to improve the shear bearing capacity, ductility and energy dissipation capacity of the shear wall as the first line of defense against earthquakes, and the arrangement of multi-layer steel plates in the wall can effectively Reduce the thickness of the wall and pour concrete into the cavity formed by the steel plate. Under the action of multiple cavities and steel pipes, it can also form constraints on the concrete in the cavity and improve the compressive strength of the concrete. During the working process of the strip-shaped multi-cavity steel pipe concrete composite shear wall, due to the design of the steel plate, the concrete parts on both sides of the steel plate can be connected, so that they can work together better. The horizontal steel plate in the steel plate can also increase the out-of-plane constraint of the steel plate wall to prevent the buckling of the steel plate. There is also reinforced concrete outside the strip structure cavity, which can form an out-of-plane constraint on the steel plate. The configured steel mesh can control cracks. It can also play the role of fire prevention and heat preservation, which can reduce the cost of subsequent engineering construction.
本发明兼有钢管混凝土和组合剪力墙的优势性能。当墙板在抗震中破坏后，钢板及外包混凝土与上、下边框梁、型钢混凝土柱形成门架结构，从而保持结构的整体稳定性。由于剪力墙是建筑结构的核心抗侧力部件，该发明可以有效的提高了剪力墙的抗震能力，也就提高了结构的整体抗震能力，当建筑物遭遇强烈地震时，可减轻其震害，防止其倒塌。The invention has the advantages of the steel pipe concrete and the composite shear wall. When the wall panel is damaged during the earthquake, the steel plate and outsourcing concrete form a portal frame structure with the upper and lower frame beams and steel concrete columns, thereby maintaining the overall stability of the structure. Since the shear wall is the core anti-lateral force component of the building structure, this invention can effectively improve the anti-seismic capacity of the shear wall, and also improve the overall anti-seismic capacity of the structure. When the building encounters a strong earthquake, it can reduce its shock damage and prevent it from collapsing.
附图说明Description of drawings
图1是本发明中一个结构单元的结构配筋示意图；Fig. 1 is the structural reinforcement schematic diagram of a structural unit among the present invention;
图2是图1中A-A剖面示意图；Fig. 2 is A-A sectional schematic diagram among Fig. 1;
图3是图1中B-B剖面示意图；Fig. 3 is B-B sectional schematic diagram among Fig. 1;
1、钢管柱，2、纵钢板，3、横钢板，4、型钢梁，5、边框柱外纵筋，6、边框柱外箍筋，7、边框梁外的纵筋，8、边框梁外的箍筋，9、条状结构腔外包混凝土的横向钢筋，10、条状结构腔外包混凝土的竖向钢筋，11、栓钉，12、钢板条。1. Steel pipe column, 2. Longitudinal steel plate, 3. Horizontal steel plate, 4. Shaped steel beam, 5. Outer longitudinal reinforcement of frame column, 6. Outer stirrup of frame column, 7. Longitudinal reinforcement outside frame beam, 8. Frame beam Outer stirrups, 9, the horizontal reinforcement of the outsourcing concrete of the strip structure cavity, 10, the vertical reinforcement of the outsourcing concrete of the strip structure cavity, 11, studs, 12, steel slats.
具体实施方式Detailed ways
下面结合图1～图3对本发明作进一步说明：Below in conjunction with Fig. 1～Fig. 3, the present invention will be further described:
内藏条状多腔钢管混凝土芯板组合剪力墙的一个结构单元的结构配筋示意图如图1～图3所示。组合剪力墙两端设置钢管柱1，钢管柱1与型钢梁4固结，在边框梁和边框柱之间设置纵钢板2，纵钢板2竖向割出竖槽，竖槽的尺寸根据横钢板3的尺寸确定。横钢板3可以贯通纵钢板2，也可以是分成两端或是三段。横钢板3穿过纵钢板2，纵钢板2可以是两层以上，横钢板横钢板3与钢板2进行焊接连接，形成多腔式的条状结构腔。剪力墙边框梁为型钢梁4，型钢梁4一般采用工字钢，在型钢梁4的外围布置边框梁外的纵筋7，沿边框梁外的纵筋7绑扎矩形的边框梁外的箍筋8，边框梁外的箍筋8可以做成不封闭型，直接焊接在钢板上，也可以做成半封闭型，在钢板上打孔，使箍筋穿过纵钢板2，钢板边缘的孔洞均匀分布至梁端。钢管柱1，钢管柱1边侧焊接钢板条12，用于焊接组合剪力墙外的钢筋网中的水平钢筋。钢管柱1外侧设置边框柱外纵筋5和边框柱外箍筋6，浇注混凝土可形成叠合柱。条状结构腔的外部设条状结构腔外包混凝土的横向钢筋9和条状结构腔外包混凝土的竖向钢筋10，条状结构腔外包混凝土的横向钢筋9与钢板条12焊接，形成单层钢筋网，与多腔内一起灌注混凝土，形成内藏多腔钢管混凝土组合剪力墙。The schematic diagrams of the structural reinforcement of a structural unit with a built-in strip-shaped multi-cavity concrete-filled steel tube composite shear wall are shown in Figures 1 to 3. A steel pipe column 1 is arranged at both ends of the combined shear wall, and the steel pipe column 1 is consolidated with the steel beam 4. A longitudinal steel plate 2 is arranged between the frame beam and the frame column. The vertical steel plate 2 vertically cuts a vertical groove. The size of the vertical groove is according The size of the horizontal steel plate 3 is determined. The horizontal steel plate 3 can run through the vertical steel plate 2, or be divided into two ends or three sections. The horizontal steel plate 3 passes through the vertical steel plate 2, and the vertical steel plate 2 may have more than two layers. The horizontal steel plate, the horizontal steel plate 3 and the steel plate 2 are welded and connected to form a multi-cavity strip structure cavity. The frame beam of the shear wall is a shaped steel beam 4, and the shaped steel beam 4 is generally made of I-beam. The longitudinal reinforcement 7 outside the frame beam is arranged on the periphery of the shaped steel beam 4, and the rectangular frame beam is bound along the longitudinal reinforcement 7 outside the frame beam. The outer stirrup 8 and the outer stirrup 8 of the frame beam can be made into an unclosed type, which is directly welded on the steel plate, or can be made into a semi-closed type, and a hole is punched on the steel plate so that the stirrup passes through the longitudinal steel plate 2, the steel plate The holes in the edge are evenly distributed to the end of the beam. The steel pipe column 1, the side welded steel strips 12 of the steel pipe column 1 are used for welding the horizontal steel bars in the reinforcement mesh outside the composite shear wall. The outer
上述内藏条状多腔钢管混凝土芯板组合剪力墙的结构单元可以按照以下叙述的方法实现：The structural unit of the composite shear wall with built-in strip multi-cavity steel tube concrete core slab can be realized according to the method described below:
1)制作叠合柱边框内的钢管柱1，在钢管柱1上焊接短的竖向钢板条12和栓钉11。1) Fabricate the steel pipe column 1 within the frame of the laminated column, and weld short vertical steel strips 12 and studs 11 on the steel pipe column 1 .
2)制作采用工字钢的型钢梁4，将型钢梁4与钢管柱1进行固结。2) Fabricate the shaped steel beam 4 using I-beam, and consolidate the shaped steel beam 4 with the steel pipe column 1 .
3)制作条状结构腔，预设多块纵钢板2，在纵钢板2上开槽，竖槽可以使钢板上下贯通，也可以分成上下两段或是更多分段。将横钢板3插入竖槽中，与纵钢板2焊接。形成条状结构腔。钢板2外侧焊接栓钉。3) Make a strip-shaped structural cavity, preset a plurality of longitudinal steel plates 2, and slot on the longitudinal steel plates 2, the vertical grooves can make the steel plates penetrate up and down, and can also be divided into upper and lower sections or more sections. Insert the horizontal steel plate 3 into the vertical groove and weld it with the vertical steel plate 2. Form a strip-like structural cavity. The outer side of steel plate 2 is welded with studs.
4)将条状结构腔与型钢梁4和钢管柱1组成的框架进行焊接。4) Weld the strip structure cavity with the frame composed of the shaped steel beam 4 and the steel pipe column 1 .
5)绑扎钢筋，在钢管柱1外侧绑扎边框柱外纵筋5和边框柱外箍筋6，在型钢梁4外侧绑扎框梁外的纵筋7和矩形的边框梁外的箍筋8，在条状结构腔外侧绑扎条状结构腔外包混凝土的横向钢筋9和条状结构腔外包混凝土的竖向钢筋10。5) Binding steel bars, binding the outer
6)在边框柱、边框梁、和条状结构腔外侧预留保护层，支模板。6) Reserve a protective layer and formwork on the outside of the frame column, frame beam, and strip structure cavity.
7)浇筑混凝土，成型后即为内藏条状多腔钢管混凝土芯板组合剪力墙的结构单元。7) Concrete is poured, and after forming, it becomes the structural unit of the composite shear wall with strip-shaped multi-cavity concrete-filled steel tube core slab.
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