CN115680159A - Prefabricated lattice type steel reinforced concrete combined shear wall structural system - Google Patents
Prefabricated lattice type steel reinforced concrete combined shear wall structural system Download PDFInfo
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Abstract
Description
技术领域technical field
本发明属于预制建筑结构技术领域。The invention belongs to the technical field of prefabricated building structures.
技术背景technical background
剪力墙结构体系由于抗侧移刚度大,能有效地减小侧移,具有一定的延性,且作为多高层建筑抗震的核心部分,承担了80%以上的水平地震作用,剪力墙良好的抗震性能是多高层建筑安全可靠的重要保证,因此已逐渐成为现代高层建筑中广泛应用的一种体系。The shear wall structural system can effectively reduce the lateral displacement due to its high lateral displacement rigidity, and has a certain degree of ductility. As the core part of the multi-story building's seismic resistance, it bears more than 80% of the horizontal earthquake action, and the shear wall is good. Seismic performance is an important guarantee for the safety and reliability of multi-story buildings, so it has gradually become a system widely used in modern high-rise buildings.
剪力墙结构体系根据现场施工方法可以分为现浇剪力墙结构和预制装配式剪力墙结构(部分预制和全部预制)。现浇结构主要有现浇钢筋混凝土结构和现浇钢骨混凝土组合结构。现浇钢筋混凝土结构是在现场先绑扎好钢筋骨架,然后支设模板后浇筑混凝土的结构体系,其中钢筋的连接为逐根连接,可采用绑扎连接或压力焊接,目前技术已十分成熟。现浇钢骨混凝土组合结构是在现场绑扎好钢筋骨架并设置一定量的钢骨,然后支设模板后浇筑混凝土的结构体系,其中型钢可以采用螺栓连接或焊缝连接,钢筋连接与现浇钢筋混凝土结构一致。The shear wall structure system can be divided into cast-in-place shear wall structure and prefabricated assembly shear wall structure (partial prefabrication and full prefabrication) according to the site construction method. Cast-in-place structures mainly include cast-in-place reinforced concrete structures and cast-in-place steel-reinforced concrete composite structures. The cast-in-place reinforced concrete structure is a structural system in which the steel skeleton is bound first on site, and then the formwork is supported and then the concrete is poured. The steel bars are connected one by one, and can be connected by binding or pressure welding. The current technology is very mature. The cast-in-place steel-reinforced concrete composite structure is a structural system in which the steel frame is bound on site and a certain amount of steel bone is set, and then the formwork is supported and the concrete is poured. The concrete structure is consistent.
随着我国装配式建筑的发展,预制装配式剪力墙结构已成为预制装配式结构体系中非常重要的结构形式。装配式剪力墙结构具有施工速度快、环保、节约材料、节省劳动力等优点,是实现建筑节能减排及住宅产业化的有效途径之一。装配式剪力墙结构的基本思路是将剪力墙结构划分成不同单元,在预制构件厂对各单元进行预制,再运输至施工现场通过机械吊装就位,然后进行连接,形成装配式剪力墙结构。With the development of prefabricated buildings in my country, the prefabricated shear wall structure has become a very important structural form in the prefabricated structural system. The prefabricated shear wall structure has the advantages of fast construction speed, environmental protection, material saving, and labor saving. It is one of the effective ways to realize building energy saving, emission reduction and housing industrialization. The basic idea of the prefabricated shear wall structure is to divide the shear wall structure into different units, prefabricate each unit in the prefabricated component factory, and then transport them to the construction site by mechanical hoisting in place, and then connect them to form a prefabricated shear wall structure. wall structure.
预制装配式剪力墙结构主要有预制钢筋混凝土结构、钢结构、预制钢骨混凝土组合结构。预制钢筋混凝土结构是先在工厂预制钢筋混凝土构件或节点,然后运输到现场进行拼装连接的结构体系。然而预制钢筋混凝土结构存在连接复杂、施工速度慢、支撑需求量较大等问题:第一、连接复杂:预制剪力墙中存在大量钢筋,在现场拼接时,不同于现浇结构中的逐根钢筋连接,需要采用套筒连接、浆锚搭接等方式将大量钢筋进行整体连接,因此目前难以将钢筋完全对中连接良好,施工精度要求较高,难度较大,容易留下安全隐患;第二、需设临时支撑:上述钢筋连接方式刚度小、承载力低,需要设置临时支撑,耗时、成本高;第三、施工速度慢:现场连接节点必须在后浇混凝土硬化并达到相当强度后才能进行后续施工,效率较低;第四、剪力墙与钢筋混凝土梁的连接不便。Prefabricated prefabricated shear wall structures mainly include prefabricated reinforced concrete structures, steel structures, and prefabricated steel-reinforced concrete composite structures. Prefabricated reinforced concrete structure is a structural system in which reinforced concrete members or nodes are prefabricated in the factory, and then transported to the site for assembly and connection. However, the prefabricated reinforced concrete structure has problems such as complex connection, slow construction speed, and large support requirements: First, the connection is complicated: there are a large number of steel bars in the prefabricated shear wall. Reinforcement connection requires a large number of rebars to be connected as a whole by means of sleeve connection, slurry-anchor lapping, etc., so it is currently difficult to completely center the rebars and connect them well. The construction accuracy is high and difficult, and it is easy to leave potential safety hazards; 2. Temporary support needs to be set up: the above-mentioned steel bar connection method has low rigidity and low bearing capacity, and temporary support needs to be set up, which is time-consuming and costly; Follow-up construction can be carried out, and the efficiency is low; Fourth, the connection between the shear wall and the reinforced concrete beam is inconvenient.
钢结构是天然的装配化建筑结构,是将一系列的型钢通过螺栓连接、焊缝连接或栓焊混合连接等方式连接形成的结构体系。然而,钢结构与围护结构的匹配性差,容易引起墙体开裂,接缝漏水等现象。同时,钢材的耐火性与耐腐性差,需采取一系列保护措施,后期维护成本较高,经济性较差。Steel structure is a natural assembled building structure, which is a structural system formed by connecting a series of steel sections through bolt connection, weld connection or bolt-weld hybrid connection. However, the matching between the steel structure and the enclosure structure is poor, and it is easy to cause cracks in the wall and water leakage in the joints. At the same time, the fire resistance and corrosion resistance of steel are poor, and a series of protective measures need to be taken, which leads to high maintenance costs and poor economic efficiency.
预制钢骨混凝土组合结构是先在工厂预制钢骨混凝土组合构件或节点,然后运输到现场进行拼装连接的结构体系。然而其连接部位一般有较多钢筋与型钢,也存在上述的钢筋连接问题,此外,钢筋与型钢骨架之间的连接也较为复杂,同时也不利于后期混凝土的浇筑密实。The prefabricated steel reinforced concrete composite structure is a structural system in which steel reinforced concrete composite members or nodes are prefabricated in the factory, and then transported to the site for assembly and connection. However, there are generally many steel bars and section steel in the connection part, and the above-mentioned steel bar connection problem also exists. In addition, the connection between the steel bar and the section steel skeleton is also relatively complicated, and it is not conducive to the compaction of concrete pouring in the later stage.
目前预制装配式剪力墙现场连接的施工方法套筒灌浆连接、浆锚搭接、现浇段连接、螺栓连接、预应力连接等五种现场施工方法,具有较多的局限和不足。At present, there are five on-site construction methods for the on-site connection of prefabricated shear walls: sleeve grouting connection, grout-anchor lap connection, cast-in-place section connection, bolt connection, and prestressed connection, which have many limitations and deficiencies.
①套筒灌浆连接①Sleeve grouting connection
套筒灌浆连接应用广泛,是目前预制混凝土结构中实现钢筋等强连接的主要连接技术之一,如图10所示。套筒灌浆连接是指将预埋钢筋插入提前埋入预制混凝土构件内的金属套筒中,然后灌注水泥基灌浆料。是一种较为可靠的连接方式。然而该方法也存在着明显的缺点:连接节点多,对构件的生产精度要求高,如果某根钢筋位置出现偏差,就有可能造成构件报废;构造复杂,对现场工人技术要求较高,且施工质量不易检验;此外,套筒造价也较高。Sleeve grouting connection is widely used, and it is one of the main connection technologies to realize equal strength connection of steel bars in precast concrete structures, as shown in Figure 10. Sleeve grouting connection refers to inserting pre-embedded steel bars into metal sleeves embedded in precast concrete components in advance, and then pouring cement-based grouting materials. It is a more reliable connection method. However, this method also has obvious disadvantages: there are many connection nodes, and the production accuracy of the components is high. If there is a deviation in the position of a certain steel bar, it may cause the components to be scrapped; The quality is not easy to check; in addition, the cost of the sleeve is relatively high.
②浆锚搭接② Lap joint of slurry anchor
浆锚搭接是指将预埋钢筋插入预制混凝土构件内提前预留好的孔道中,并灌注水泥基灌浆料,如图11所示。目前浆锚搭接的可靠性已经得到实际工程的验证,但是只集中于低层、多层结构,在高层、超高层结构中的应用有待进一步验证,因此其应用范围受到一定限制。由于钢筋与预留洞要一一对应,对试件制作和施工精度要求较高,施工较为复杂,且过长的搭接长度造成了较大的钢材浪费。Grout-anchor lap joint refers to inserting pre-embedded steel bars into pre-reserved channels in precast concrete components, and pouring cement-based grouting materials, as shown in Figure 11. At present, the reliability of slurry-anchor lap joints has been verified by actual projects, but it is only concentrated in low-rise and multi-storey structures, and its application in high-rise and super high-rise structures needs further verification, so its application range is limited to a certain extent. Due to the one-to-one correspondence between the steel bars and the reserved holes, the requirements for the production and construction accuracy of the test pieces are high, the construction is more complicated, and the excessively long lap length causes a large waste of steel.
③现浇段连接③Cast-in-place connection
现浇段连接是指在上下两片预制剪力墙之间设置后浇段,通过挤压套筒或套箍将钢筋(如图12所示)连接,最后通过现浇混凝土把墙体连接成为整体。现浇段连接操作简便、安装质量可控,但是新旧混凝土界面结合不佳,易形成通缝,现浇段难以浇筑密实的问题也较为突出。The cast-in-place section connection refers to setting a post-cast section between the upper and lower prefabricated shear walls, connecting the steel bars (as shown in Figure 12) by extruding sleeves or hoops, and finally connecting the walls with cast-in-place concrete overall. The connection of the cast-in-place section is easy to operate and the installation quality is controllable, but the interface between the old and new concrete is not well bonded, and joints are easily formed, and the cast-in-place section is difficult to pour and compact.
④螺栓连接④Bolt connection
螺栓连接是一种“干式”连接构造,不需要浇筑混凝土的湿作业,如图13所示。螺栓连接操作简便、安装质量可控,显著提高了施工效率,但是由于不浇筑混凝土,结构整体性较差,且难以形成刚性连接,目前应用并不广泛。The bolted connection is a “dry” connection construction that does not require the wet operation of pouring concrete, as shown in Figure 13. The bolt connection is easy to operate and the installation quality is controllable, which significantly improves the construction efficiency. However, because no concrete is poured, the structural integrity is poor, and it is difficult to form a rigid connection, so it is not widely used at present.
⑤预应力连接⑤Prestressed connection
预应力连接是指通过张拉预应力筋使预制剪力墙构件可靠连接。预应力筋一般采用无黏结筋。预应力连接具有施工便捷、变形恢复能力好等优点,在国外已有一定量的研究与应用。然而,采用预应力连接的预制剪力墙受力性能与现浇剪力墙差别较大,属于“非等同现浇”,其设计计算方法需要更进一步的研究。此外,预应力的施工要求也较高。Prestressed connection refers to the reliable connection of prefabricated shear wall components by tensioning prestressed tendons. Prestressed tendons generally use unbonded tendons. Prestressed connection has the advantages of convenient construction and good deformation recovery ability, and has been studied and applied abroad to a certain extent. However, the mechanical performance of prefabricated shear walls with prestressed connections is quite different from that of cast-in-place shear walls, which belongs to "non-equal cast-in-place", and its design and calculation methods need further research. In addition, the construction requirements of prestressing are also relatively high.
目前的预制装配式结构存在大量节点,而节点处的连接方式都或多或少存在一些不足与问题。因此,缺少一种设计合理、施工方便且投入成本较低的装配式剪力墙结构体系。There are a large number of nodes in the current prefabricated structure, and there are more or less deficiencies and problems in the connection methods at the nodes. Therefore, there is a lack of a prefabricated shear wall structure system with reasonable design, convenient construction and low input cost.
发明内容Contents of the invention
本发明所要解决的技术问题在于针对上述现有技术中的不足,提供一种预制装配化格构钢骨混凝土组合剪力墙结构体系。The technical problem to be solved by the present invention is to provide a prefabricated assembly lattice steel-reinforced concrete composite shear wall structure system in view of the above-mentioned deficiencies in the prior art.
本发明采用的技术方案:The technical scheme adopted in the present invention:
一种预制装配化格构式钢骨混凝土组合剪力墙结构体系,其特征在于:包括剪力墙区域、楼板以及节点;所述剪力墙区域是由格构式钢骨混凝土组合剪力墙体构件(10)拼接而成;所述节点包括剪力墙体竖向拼接节点、剪力墙体水平拼接节点、墙板连接节点;通过剪力墙体竖向拼接节点或剪力墙体水平拼接节点将若干格构式钢骨混凝土组合剪力墙体构件拼接成所述剪力墙区域,再通过墙板连接节点将剪力墙区域与楼板连接;于是所述预制装配化格构式钢骨混凝土组合剪力墙结构体系装配而成。A prefabricated assembled lattice steel-reinforced concrete composite shear wall structure system, characterized in that it includes a shear wall area, a floor slab, and nodes; Body components (10) are spliced together; the nodes include the vertical splicing node of the shear wall, the horizontal splicing node of the shear wall, and the wall panel connection node; through the vertical splicing node of the shear wall or the horizontal The splicing node splices several lattice-type steel-reinforced concrete composite shear wall components into the shear wall area, and then connects the shear wall area to the floor through the wall plate connection node; thus the prefabricated assembled lattice steel It is assembled with bone concrete composite shear wall structure system.
本发明的技术优点在于:Technical advantage of the present invention is:
1)格构式钢骨混凝土组合剪力墙结构体系同时具备了钢结构良好的装配性以及混凝土结构良好的耐久性与耐火性,整体可以满足正常使用状态的要求。1) The lattice-type steel-reinforced concrete composite shear wall structure system has both good assembly properties of steel structures and good durability and fire resistance of concrete structures, and can meet the requirements of normal use as a whole.
2)各组合构件在工厂预制生产,更易于保证质量。2) Each combined component is prefabricated in the factory, which is easier to guarantee the quality.
3)现场连接可看作是钢骨间的连接,无需钢筋连接,故相较传统剪力墙连接更为方便,易于现场装配。3) The on-site connection can be regarded as the connection between the steel frames, without the need for a steel bar connection, so it is more convenient than the traditional shear wall connection and easy to assemble on site.
4)节点连接后具有良好的强度和刚度,不需要或可以减少临时支撑,且不需要等待节点区混凝土硬化即可继续后继工序,具有减少支撑、提高施工效率等优点。4) After the joints are connected, they have good strength and rigidity, do not need or can reduce temporary supports, and do not need to wait for the concrete in the joint area to harden to continue the subsequent process, which has the advantages of reducing supports and improving construction efficiency.
本发明预制装配化格构式钢骨混凝土组合剪力墙结构体系,可广泛应用于住宅建筑、办公建筑、厂房建筑、商业楼、工业建筑及其它建筑结构体系建筑中。The prefabricated and assembled lattice type steel-reinforced concrete composite shear wall structure system of the present invention can be widely used in residential buildings, office buildings, factory buildings, commercial buildings, industrial buildings and other building structure system buildings.
附图说明Description of drawings
实施例1(典型构造)Embodiment 1 (typical structure)
图1为本发明剪力墙结构体系中剪力墙区域的部分截面形式示意图。Fig. 1 is a partial cross-sectional view of the shear wall area in the shear wall structural system of the present invention.
图2为本发明剪力墙结构体系的典型构造示意图:(a)三维示意图;(b)正面示意图。Fig. 2 is a typical structural schematic diagram of the shear wall structural system of the present invention: (a) three-dimensional schematic diagram; (b) front schematic diagram.
图3为本发明典型构造中三类拼接节点示意图:(a)剪力墙体竖向拼接节点示意图;(b)剪力墙体水平拼接节点示意图;(c)墙板连接节点示意图。Fig. 3 is a schematic diagram of three types of splicing nodes in a typical structure of the present invention: (a) a schematic diagram of a vertical splicing node of a shear wall; (b) a schematic diagram of a horizontal splicing node of a shear wall; (c) a schematic diagram of a wall panel connection node.
图4为本发明格构式钢骨混凝土组合剪力墙体构件相关的构造示意图:(a) 三维图;(b)钢骨骨架三维图;(c)构造立面示意图;(d)造水平剖面示意图。Fig. 4 is the structural schematic diagram related to the lattice type steel-reinforced concrete composite shear wall member of the present invention: (a) three-dimensional diagram; (b) three-dimensional diagram of steel skeleton; (c) structural elevation schematic diagram; (d) building level Sectional schematic.
图5为本发明墙体的部分截面形式示意图。Fig. 5 is a schematic diagram of a partial section of the wall of the present invention.
图6为本发明剪力墙内各个暗柱的布置形式示意图。Fig. 6 is a schematic diagram of the layout of each concealed column in the shear wall of the present invention.
图7为本发明竖向钢骨一排形式示意图。Fig. 7 is a schematic diagram of a row of vertical steel frames according to the present invention.
图8为本发明竖向钢骨的部分截面形式示意图。Fig. 8 is a schematic diagram of a partial section of the vertical steel frame of the present invention.
图中:In the picture:
剪力墙区域1,楼板2;
节点3,剪力墙体竖向拼接节点31,剪力墙体水平拼接节点32,墙板连接节点33;第一连接件322;第二连接件331;Node 3, shear wall
格构式钢骨混凝土组合剪力墙体构件10:暗柱101,竖向钢骨102,横向缀材103,混凝土墙体104;外露部分105;Lattice steel-reinforced concrete composite shear wall member 10: concealed
实施例2Example 2
图9为本发明的一种在楼板下设置梁构件的构造三维示意图。Fig. 9 is a three-dimensional schematic diagram of a structure in which beam members are arranged under the floor according to the present invention.
图中:梁构件4;In the figure:
图10现有技术中套筒灌浆连接Sleeve grouting connection in the prior art in Fig. 10
图11现有技术中螺旋筋约束浆锚搭接Fig. 11 Lap joint of spiral reinforcement restrained slurry anchor in the prior art
图12现有技术中套箍连接Figure 12 ferrule connection in the prior art
图13现有技术中螺栓连接Fig. 13 Bolt connection in the prior art
具体实施方式Detailed ways
一种预制装配化格构式钢骨混凝土组合剪力墙结构体系,其特征在于:包括剪力墙区域1、楼板2以及节点3;A prefabricated assembled lattice type steel-reinforced concrete composite shear wall structure system, characterized in that it includes a
所述剪力墙区域1是由格构式钢骨混凝土组合剪力墙体构件10拼接而成; (如图1所示)The
所述节点3包括剪力墙体竖向拼接节点31、剪力墙体水平拼接节点32、墙板连接节点33;(如图3所示)Described node 3 comprises shear wall body
通过剪力墙体竖向拼接节点31或剪力墙体水平拼接节点32将若干格构式钢骨混凝土组合剪力墙体构件拼接成所述剪力墙区域1,再通过墙板连接节点33 将剪力墙区域1与楼板2连接;于是所述预制装配化格构式钢骨混凝土组合剪力墙结构体系装配而成。(如图2所示)Several lattice-type steel-reinforced concrete composite shear wall components are spliced into the
如图4所示,所述格构式钢骨混凝土组合剪力墙体构件10包括暗柱101、竖向钢骨102、横向缀材103构成的钢骨骨架,以及混凝土墙体104;格构式钢骨混凝土组合剪力墙体10中的钢骨骨架内藏于混凝土墙体104内;在格构式钢骨混凝土组合剪力墙体10两端设置边框暗柱101,必要时在墙体中部再附加设置暗柱101以提高墙体受力性能,在在格构式钢骨混凝土组合剪力墙体10中间设置竖向钢骨102;所述暗柱101与钢骨102,以及钢骨102与钢骨102之间以横向缀材103连接成整体式钢骨骨架,在整体式钢骨骨架上浇筑混凝土后在端侧形成外露部分105,所述外露部分105用于现场连接;以上构成预制装配化格构式钢骨混凝土组合剪力墙体。As shown in Figure 4, the lattice-type steel-reinforced concrete composite shear wall member 10 includes a steel skeleton composed of a hidden
如图5所示,所述格构式钢骨混凝土组合剪力墙体构件10,其截面形式包括但不限于一字型、L型、T型以及十字型以及弧形或其他曲线形。As shown in FIG. 5 , the cross-sectional form of the latticed steel-reinforced concrete composite shear wall member 10 includes, but is not limited to, a straight, L-shaped, T-shaped, cross-shaped, arc or other curved shapes.
如图6所示,所述暗柱101包括但不限于实腹式柱以及格构式柱。As shown in FIG. 6 , the
所述竖向钢骨102包括但不限于轧制型钢、焊接型钢、冷弯型钢以及钢板冷弯;其截面形式包括但不限于角钢、槽钢、工字钢、十字型钢、L型钢、以及C 形钢。The
所述横向缀材103包括但不限于角钢缀条、钢板缀板以及钢筋。The
所述暗柱101与竖向钢骨102,竖向钢骨102与竖向钢骨102之间以横向缀材103连接成整体式钢骨骨架,所述横向缀材103的布置形式为沿墙体长度方向通长布置,包括但不限于与竖向钢骨102正交和斜交;所述的横向缀材103连接方式包括但不限于焊缝连接、螺栓连接以及栓焊混合连接。The
所述暗柱101、钢骨102以及横向缀材103所用的钢材包括但不限于普通结构钢和高强钢;所述混凝土墙体104所用的混凝土包括但不限于普通混凝土、高强混凝土以及高性能混凝土。The steel materials used for the
所述楼板2包括但不限于钢桁架楼承板、预制板、叠合板、现浇钢筋混凝土楼板。The
所述预制装配化格构式钢骨混凝土组合剪力墙构件可与其它结构体系配合使用,形成组合结构体系;其它结构体系包括但不限于框架结构、筒体结构、钢结构、现浇剪力墙结构。The prefabricated assembled lattice steel reinforced concrete composite shear wall member can be used in conjunction with other structural systems to form a composite structural system; other structural systems include but are not limited to frame structures, cylinder structures, steel structures, cast-in-place shear wall structure.
下面通过实施例结合附图进一步说明本发明。The present invention is further illustrated below by means of embodiments in conjunction with the accompanying drawings.
实施例1(典型构造)Embodiment 1 (typical structure)
如图1所示,一种预制装配化格构式钢骨混凝土组合剪力墙结构体系,其特征在于:包括剪力墙区域1、楼板2以及节点3;所述剪力墙区域1是由格构式钢骨混凝土组合剪力墙体构件10拼接而成;所述节点3包括剪力墙体竖向拼接节点31、剪力墙体水平拼接节点32、墙板连接节点33;(如图3所示)As shown in Figure 1, a prefabricated assembled lattice type steel-reinforced concrete composite shear wall structure system is characterized in that: it includes a
通过剪力墙体竖向拼接节点31或剪力墙体水平拼接节点32将若干格构式钢骨混凝土组合剪力墙体构件拼接成所述剪力墙区域1,再通过墙板连接节点33 将剪力墙区域1与楼板2连接;于是所述预制装配化格构式钢骨混凝土组合剪力墙结构体系装配而成。(如图2所示)Several lattice-type steel-reinforced concrete composite shear wall components are spliced into the
(如图4所示)所述格构式钢骨混凝土组合剪力墙体构件10包括暗柱101、竖向钢骨102、横向缀材103构成的钢骨骨架,以及混凝土墙体104;(As shown in Fig. 4) described lattice type steel-reinforced concrete composite shear wall member 10 comprises the steel frame of
格构式钢骨混凝土组合剪力墙体10中的钢骨骨架内藏于混凝土墙体104内;The steel frame in the lattice type steel-reinforced concrete composite shear wall 10 is embedded in the
在格构式钢骨混凝土组合剪力墙体10两端设置边框暗柱101,必要时在墙体中部再附加设置暗柱101以提高墙体受力性能,在在格构式钢骨混凝土组合剪力墙体10中间设置竖向钢骨102;所述暗柱101与钢骨102,以及钢骨102与钢骨102之间以横向缀材103连接成整体式钢骨骨架,在整体式钢骨骨架上浇筑混凝土后在端侧形成外露部分105,所述外露部分105用于现场连接;Set frame hidden
以上构成预制装配化格构式钢骨混凝土组合剪力墙体。The above constitutes a prefabricated assembled lattice type steel reinforced concrete composite shear wall.
如图3所示:As shown in Figure 3:
图(a)所示为本发明的一种典型构造中的剪力墙体竖向拼接节点31,将相邻两片格构式钢骨混凝土组合剪力墙体10拼接成一体,连接方式包括但不限于螺栓连接、焊接或栓焊混合连接,然后在剪力墙体竖向拼接节点31处浇筑混凝土,用于逐步形成剪力墙区域1。具体的,在水平两片格构式钢骨混凝土组合剪力墙体10间添设竖向钢骨102,将此相邻两片格构式钢骨混凝土组合剪力墙体 10中的横向缀材103相对接,然后在剪力墙体竖向拼接节点31处浇筑混凝土。Figure (a) shows a
图(b)所示为本发明的一种典型构造中的剪力墙体水平拼接节点32,举例而非限定采用矩形钢板作为第一连接件322将上下两片格构式钢骨混凝土组合剪力墙体构件10拼接成一体,即利用矩形钢板将上下两片格构式钢骨混凝土组合剪力墙体构件10的外露部分105拼接起来,第一连接件322与格构式钢骨混凝土组合剪力墙体构件10之间的连接方式包括但不限于螺栓连接、焊接或栓焊混合连接,然后在剪力墙体水平拼接节点32处浇筑混凝土,用于逐步形成剪力墙区域1。Figure (b) shows the shear wall horizontal splicing joint 32 in a typical structure of the present invention. It is an example, but not limited to, using a rectangular steel plate as the first connector 322 to shear the upper and lower latticed steel reinforced concrete composites. The force wall member 10 is spliced into one, that is, the exposed
图(c)所示为本发明的一种典型构造中的墙板连接节点33,举例采用T型钢作为第二连接件331通过连接相邻的外露部分105将上下两片格构式钢骨混凝土组合剪力墙体10拼接成一体,使T型钢的腹板成为悬臂,在悬臂上方放置预制楼板2构件,然后在墙板连接节点33处浇筑混凝土,最终形成剪力墙结构体系。Figure (c) shows the wall
本发明能够避免现有剪力墙结构复杂的钢筋连接,且节点连接后具有良好的强度和刚度,不需要临时支撑,也不需要等待节点区混凝土硬化即可继续后继工序,可大大提高施工速度。其结构简单、设计合理、施工方便且投入成本较低,能有效解决传统装配式剪力墙结构存在的连接复杂、施工速度慢、支撑需求量较大等问题。The present invention can avoid the complicated reinforcement connection of the existing shear wall structure, and the node connection has good strength and rigidity, does not need temporary support, and does not need to wait for the concrete in the node area to harden to continue the subsequent process, which can greatly improve the construction speed . It has simple structure, reasonable design, convenient construction and low input cost, which can effectively solve the problems of complex connection, slow construction speed and large support demand in traditional prefabricated shear wall structures.
预制装配化格构式钢骨混凝土组合剪力墙结构体系的一种典型构造示意图如图1、图2、图3所示,其施工阶段的制作顺序如下:A typical structural diagram of a prefabricated prefabricated lattice steel-reinforced concrete composite shear wall structure system is shown in Figure 1, Figure 2, and Figure 3, and the fabrication sequence of the construction phase is as follows:
1)将若干格构式钢骨混凝土组合剪力墙体通过剪力墙体竖向拼接节点31 或剪力墙体水平拼接节点32拼接成剪力墙区域1;通过设计计算保证剪力墙体水平拼接节点32具有足够强度及刚度,使其能够承受施工荷载,无须浇筑混凝土便可进行上部结构施工,有助于提高施工效率;例如结构跨度为6m、楼层高度为3m、楼板厚度为110mm、剪力墙厚度为200mm、施工阶段同时施工3层结构层、楼面施工活荷载为4.0kPa时,每米中部剪力墙应承受的施工荷载约为:1) Several lattice-type steel-reinforced concrete composite shear walls are spliced into
P=3×[(0.2×3×1+0.11×6×1)×25+4×6×1]=166.5kNP=3×[(0.2×3×1+0.11×6×1)×25+4×6×1]=166.5kN
若每米格构式钢骨混凝土组合剪力墙体选用8根强度为Q345的等边角钢作为竖向钢骨,则每根角钢截面积应不小于:If 8 equal-edge angle steels with a strength of Q345 are selected as vertical steel frames for each steel-reinforced concrete composite shear wall, the cross-sectional area of each angle steel should not be less than:
选用L40×4规格的等边角钢即可保证强度;若外伸钢骨长度为200mm,则其长细比为:The strength can be guaranteed by selecting the equilateral angle steel of L40×4 specification; if the length of the outstretched steel frame is 200mm, its slenderness ratio is:
相对长细比为:The relative slenderness ratio is:
稳定系数为:The stability factor is:
此时剪力墙体水平拼接节点32的抗压承载力为:At this time, the compressive bearing capacity of the
N=8×0.80×308.6×345/1.111=613kN>PN=8×0.80×308.6×345/1.111=613kN>P
可知剪力墙体水平拼接节点32的刚度足以防止施工阶段发生失稳;It can be seen that the rigidity of the
2)再将楼板2与剪力墙区域1通过墙板连接节点33连接;2) Connect the
3)在剪力墙体竖向拼接节点31、剪力墙体水平拼接节点32、墙板连接节点 33处浇筑混凝土,即形成格构式钢骨混凝土组合剪力墙结构体系。3) Concrete is poured at the
所述剪力墙区域1中,通过设置暗柱,可提高墙体的整体受力性能。采用竖向钢骨代替传统剪力墙的竖向钢筋,在实际施工时可以通过螺栓连接、焊接连接或栓焊连接等将竖向钢骨进行连接,避免了传统剪力墙钢筋连接的各种不足,现场连接更加方便;且钢骨刚度远大于钢筋,可以承受施工阶段荷载;相较于钢筋钢骨截面积较大,墙体整体承载力大于传统剪力墙。采用缀材代替传统剪力墙的横向水平分布钢筋,便于连接的同时,其截面积更大,水平抗剪能力较传统剪力墙更大。因此,本发明采用格构式骨架,具有实用性和可行性。In the
所述节点3可按设计要求设计成等同现浇强度或略低于现浇强度,设计要求灵活;连接方式采用螺栓连接、焊接连接或栓焊连接等,避免传统剪力墙体系钢筋连接的各种不足,现场连接方便;通过设计计算确定竖向钢骨形式、截面积及间距等参数,保证钢骨的强度及刚度,使节点3在未浇筑混凝土前即已具备较大强度和刚度,可以承受施工荷载,较传统剪力墙体系可减少模板和支撑,提高施工效率。The node 3 can be designed to be equal to or slightly lower than the cast-in-place strength according to the design requirements, and the design requirements are flexible; the connection method adopts bolt connection, welding connection or bolt-welding connection, etc., avoiding the various problems of traditional shear wall system steel bar connection. Insufficiency of this type, convenient on-site connection; parameters such as the form, cross-sectional area, and spacing of the vertical steel frame are determined through design calculations to ensure the strength and rigidity of the steel frame, so that node 3 has greater strength and rigidity before concrete is poured, and can be To withstand construction loads, formwork and supports can be reduced compared with traditional shear wall systems, and construction efficiency can be improved.
所述预制装配化格构式钢骨混凝土组合构件均在工厂预制完成,然后运至施工现场吊装拼接。The prefabricated assembled lattice type steel reinforced concrete composite members are all prefabricated in the factory, and then transported to the construction site for hoisting and splicing.
本发明结构简单、设计合理且施工方便,能有效解决传统装配式剪力墙结构存在的连接复杂、施工速度慢、支撑需求量较大等问题。The invention has the advantages of simple structure, reasonable design and convenient construction, and can effectively solve the problems of complex connection, slow construction speed, large support demand and the like existing in the traditional prefabricated shear wall structure.
实施例2(结构跨度较大时场景)Embodiment 2 (scene when the structural span is large)
区别实施例1的预制装配化格构式钢骨混凝土组合剪力墙结构体系,本实施例结构体系中,如图9所示:Different from the prefabricated and assembled lattice type steel reinforced concrete composite shear wall structure system in Example 1, the structure system of this embodiment is shown in Figure 9:
根据应用场景在必要时可在楼板2下方设置梁构件4,所述梁构件4为主梁或次梁。即当结构跨度较大或结构开孔较大时可在楼板2下方设置梁构件4,从而为加强整个体系的安全稳定。According to the application scenario, a
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WO2024198089A1 (en) * | 2023-03-29 | 2024-10-03 | 常州金构智建科技有限公司 | Novel prefabricated building equivalent combined structure system |
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WO2024198089A1 (en) * | 2023-03-29 | 2024-10-03 | 常州金构智建科技有限公司 | Novel prefabricated building equivalent combined structure system |
CN118536315A (en) * | 2024-06-14 | 2024-08-23 | 广州广检建设工程检测中心有限公司 | Assembled shear wall structure and vertical connection method and system |
CN118536315B (en) * | 2024-06-14 | 2025-03-11 | 广州广检建设工程检测中心有限公司 | Assembled shear wall structure and vertical connection method and system |
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