CN111851815A

CN111851815A - Curtain wall vertical keel support structure

Info

Publication number: CN111851815A
Application number: CN202010738194.0A
Authority: CN
Inventors: 祝志文; 王钦华
Original assignee: Shantou University
Current assignee: Shantou University
Priority date: 2020-07-28
Filing date: 2020-07-28
Publication date: 2020-10-30

Abstract

The invention discloses a curtain wall vertical keel support structure, which comprises: the pin, fossil fragments end support width of cloth and fossil fragments outer support width of cloth. The support structure provided by the technical scheme can properly release the restraint of two ends of the vertical keel along the length direction of the curtain wall, and reduce the temperature internal force restraint; meanwhile, the out-of-plane rotation of the vertical keel can be provided properly, and the bending moments at two ends are reduced remarkably; the design of the support is optimized, stress concentration is reduced, and temperature stress is reduced.

Description

Curtain wall vertical keel support structure

Technical Field

The invention belongs to the field of civil structures, and particularly relates to a curtain wall vertical keel support structure.

Background

Large stadiums such as airports, railway stations, stadiums and other large span roof structures often adopt large curtain walls on vertical surfaces. The curtain wall is supported by the vertical keels in the form of hollow trusses, the vertical keels are transversely connected through the horizontal members, and two ends of each vertical keel are connected with the floor slab at the lower end and the ring beam at the upper end through hinged supports.

When the longitudinal length and the height of the curtain wall are large, the curtain wall can expand greatly along the longitudinal direction under the action of environmental temperature rise and solar radiation. Because the two ends of the vertical keel can only rotate in the hinge and can not move and rotate longitudinally along the curtain wall, and the middle part of the vertical keel generates differential deformation under the lateral action of the horizontal connecting systems with different heights, the vertical keel generates spindle-shaped lateral deformation, and the vertical middle part of the vertical keel has the maximum deformation degree. The lateral deformation of the vertical keel in a large range can cause the two ends of the vertical keel to bear large bending moment, and the end part of the vertical keel or the support can be cracked if the end part of the vertical keel and the support are designed unreasonably. Similar engineering diseases, such as the occurrence of extreme loading effects, such as strong wind effects, can threaten the safety and stability of the structure.

Disclosure of Invention

This technical scheme aims at providing a curtain vertical keel support structure on the one hand to solve one or more technical problems that exist among the prior art, provide a profitable selection or create the condition at least.

A curtain wall vertical keel support structure comprises: the pin, fossil fragments end support width of cloth and fossil fragments outer support width of cloth. The keel end support breadth comprises an end support bottom plate and two end support connecting tongues, wherein the two end support connecting tongues are parallel to each other and are fixedly connected with the end support bottom plate through the roots of the two end support connecting tongues; the keel outer support breadth comprises an outer support base plate and an outer support connecting tongue, the root of the outer support connecting tongue is fixedly connected with the outer support base plate, a second pin hole is formed in the outer support connecting tongue, and the thickness of the outer support connecting tongue is h; the outer support connecting tongues are positioned between the two end support connecting tongues, the pins penetrate through the first pin holes and the second pin holes, and the thickness of the outer support connecting tongues meets the requirement that H is H/2.

The design of the double-end support connecting tongue of the keel end support breadth can ensure that the keel end support breadth and the keel have the same in-plane and out-of-plane bending rigidity; the outer side surface of the end support connecting tongue is flush with the side surface of the keel, so that the vertical keel can have the same out-of-plane rigidity, and stress concentration caused by rigidity mutation at the end part can be avoided. The outer support connecting tongues and the two end support connecting tongues keep a gap, namely the clear distance between the two end support connecting tongues is 2 times of the thickness of the outer support connecting tongues. This can guarantee that when the curtain falls because of the temperature rise temperature, the curtain lower extreme can certain degree take place along the longitudinal slip of curtain, releases temperature stress through the displacement.

Further, the end support connecting tongue is fixedly connected with the end support base plate through a double-groove welding process. In addition, the outer support connecting tongue is fixedly connected with the outer support bottom plate through a double-face groove welding process.

Further, the inner diameter of the first pin hole is 10mm larger than the diameter of the pin. The inner diameter of the second pin hole is 2mm larger than the diameter of the pin.

Further, the end of the pin is provided with threads, and the pin and the keel end support breadth are fixed relatively through matching with the nut. The pin adopts a structure of a screw and a nut, the thread is positioned at the end part, and the surfaces corresponding to the two first pin holes and between the two first pin holes are cylindrical surfaces. A gasket is arranged between the nut and the end support connecting tongue.

Further, the first pin hole is rounded at two sides, and the radius of the rounded corner is 1/4 of the thickness of the end support connecting tongue.

Furthermore, the distance from the first pin hole to the top end of the end support connecting tongue is a, and the distance from the second pin hole to the outer support bottom plate is b, so that b is more than or equal to a +200 mm. The outer support base plate has larger height, so that the bearing capacity and the stability are increased, the outer support base plate can be allowed to have enough deformation space under the action of the out-of-plane bending moment transmitted by the support, and the bending stress, particularly the stress at the joint of the outer support base plate, is reduced.

The invention has the following advantages: the support structure provided by the technical scheme can properly release the restraint of two ends of the vertical keel along the length direction of the curtain wall, and reduce the temperature internal force restraint; meanwhile, the out-of-plane rotation of the vertical keel can be provided properly, and the bending moments at two ends are reduced remarkably; the design of the support is optimized, stress concentration is reduced, and temperature stress is reduced.

Drawings

In order to more clearly illustrate the technical solution in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is clear that the described figures are only some embodiments of the invention, not all embodiments, and that a person skilled in the art can also derive other designs and figures from them without inventive effort.

FIG. 1 is a front view of the curtain wall vertical keel support structure;

fig. 2 is a right side view of the curtain wall vertical keel support structure.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.

Embodiment 1, as shown in fig. 1 and 2, a curtain wall vertical keel support structure comprises: pin 010, keel end support amplitude 020 and keel outer support amplitude 030. The keel end support breadth 020 comprises an end support bottom plate 021 and two end support connecting tongues 022. The two end support connecting tongues 022 are parallel to each other and are fixedly connected to the end support bottom plate 021 through the roots thereof. The double-end support connecting tongue 022 design of the keel end support breadth 020 can ensure that the keel end support breadth 020 and the keel have the same in-plane and out-of-plane bending rigidity. The width of the root of the end bracket connecting tongue 022 is equal to the width of the end bracket bottom plate 021. The outer side surface of the end support connecting tongue 022 is flush with the side surface of the keel, so that the vertical keel can be ensured to have the same out-of-plane rigidity, and stress concentration caused by rigidity mutation at the end part can be avoided. The distance between the two end support connecting tongues 022 is 90mm, and first pin holes are formed in the end support connecting tongues 022; the outer support breadth 030 of fossil fragments includes outer support bottom plate 031 and outer support connection tongue 032, the root of outer support connection tongue 032 with outer support bottom plate 031 fixed connection, be equipped with the second cotter hole on the outer support connection tongue 032, the thickness of outer support connection tongue 032 is 45 mm. The tongue 032 is connected to the outer support and is located two between the tongue 022 is connected to the end support, the pin passes first cotter hole with the second cotter hole. The thickness of the outer support connecting tongue 032 and the distance between the two end support connecting tongues 022 are 2:1, and the size proportion can ensure that the lower end of the curtain wall can slide longitudinally along the curtain wall to a certain degree when the temperature of the curtain wall is lowered due to temperature rise, and temperature stress is released through displacement.

As a further preferred embodiment, the end seat connecting tongue 022 is fixedly connected to the end seat bottom plate 021 by a double groove welding process. In addition, the outer seat connecting tongue 032 is fixedly connected with the outer seat bottom plate 031 through a double-face groove welding process.

In a further preferred embodiment, the inner diameter of the first pin hole is 10mm larger than the diameter of the pin 010. The inner diameter of the second pin hole is 2mm larger than the diameter of the pin 010. Meanwhile, the first pin hole is rounded at two sides, and the radius of the rounded corner is 1/4 of the thickness of the end support connecting tongue 022. Allowing some out-of-plane rotation of the keel 040 within the carrier structure about the cylindrical surface of pin 010, releases the out-of-plane bending moment on the keel upon rotation.

As a further preferred embodiment, the end of the pin is provided with a thread, and the pin is fixed relative to the keel end support web 020 through cooperation with the nut. The pin adopts a structure of a screw and a nut, the thread is positioned at the end part, and the surfaces corresponding to the two first pin holes and between the two first pin holes are cylindrical surfaces. A gasket is also arranged between the nut and the end support connecting tongue 022.

In a further preferred embodiment, a distance from the first pin hole to the top end of the end seat connecting tongue 022 is a, and a distance from the second pin hole to the outer seat bottom plate 031 is b, so that b ≧ a +200mm is satisfied. The outer base plate 031 has a larger height, which ensures that the bearing capacity and the stability are increased, and allows the outer base plate 031 to have enough deformation space under the action of the out-of-plane bending moment transmitted by the support, so that the bending stress, particularly the stress at the joint of the outer base plate 031 is reduced.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. The utility model provides a vertical fossil fragments support structure of curtain which characterized in that includes:

a pin;

the keel end support breadth comprises an end support bottom plate and two end support connecting tongues, wherein the two end support connecting tongues are parallel to each other and are fixedly connected with the end support bottom plate through the roots of the two end support connecting tongues;

the keel outer support bracket comprises an outer support base plate and an outer support connecting tongue, the root of the outer support connecting tongue is fixedly connected with the outer support base plate, a second pin hole is formed in the outer support connecting tongue, and the thickness of the outer support connecting tongue is h;

the outer support connecting tongues are positioned between the two end support connecting tongues, the pins penetrate through the first pin holes and the second pin holes, and the thickness of the outer support connecting tongues meets the requirement that H is H/2.

2. The curtain wall vertical keel support structure according to claim 1, wherein the end support connecting tongue is fixedly connected with the end support base plate through a double groove welding process.

3. The curtain wall vertical keel support structure according to claim 1, wherein the outer support connecting tongue is fixedly connected with the outer support base plate through a double-face groove welding process.

4. The curtain wall vertical keel support structure of claim 1, wherein the first pin hole has an inner diameter 10mm greater than the diameter of the pin.

5. The curtain wall vertical keel support structure of claim 4, wherein the second pin hole has an inner diameter 2mm greater than the diameter of the pin.

6. The curtain wall vertical keel support structure according to claim 5, wherein the end of the pin is provided with a thread, and the pin and the keel end support breadth are relatively fixed through matching with a nut.

7. The curtain wall vertical keel support structure of claim 6, further comprising a spacer between said nut and said end support attachment tongue.

8. The curtain wall vertical keel support structure of claim 1, wherein the first pin hole is bilaterally rounded with a radius 1/4 of the thickness of the end support connection tongue.

9. The curtain wall vertical keel support structure according to claim 1, wherein the distance from the first pin hole to the top end of the end support connecting tongue is a, and the distance from the second pin hole to the outer support bottom plate is b, so that b is more than or equal to a +200 mm.