摘要:
A node assembly for connecting a plurality of struts (10) in a framework (6) of a geodesic dome or other structure (2), comprising a hub (20) defining a toroidal retaining channel (42, 43) therewithin, and one or more retention elements (30a, 30b) each carried on or attachable to an end of a respective strut (10) and insertable into the retaining channel (42, 43). The hub (20) includes clamping means (24a, 24b) for clamping the or each retention element (30a, 30b) within the retaining channel (42, 43) once inserted therein, and the side walls defining the retaining channel (42, 43) in the hub (20) are configured and dimensioned such that the respective retention heads (32a, 32b) of the retention elements (30a, 30b) are substantially completely enclosed therein. The retention elements (30a, 30b) each preferably have a bifurcated retention head (32a, 32b) angled with respect to the main body (34) of the retention element for insertion into and retention within the retaining channel (42, 43) and pivotable therein to provide adjustment of the strut (10) before the clamping means (24a, 24b) are actuated to tighten and clamp the retention elements (30a, 30b) within the retaining channel (42, 43) in the hub (20). The system of node assemblies comprising hubs (20) and retention elements (30a, 30b) carried on the struts (10) allows for a simplified modular frame construction system based on a minimised number of different structural components. Once the frame is constructed, it may be clad by conventional means such as sheeting or discrete panels (120) of glass or plastics material anchored to the struts (10) via panel restraining devices (118, 130, 136).
摘要:
Supporting structure (8) for curved envelope geometries in buildings consisting of support elements (4) which are each combined to form N-sided polygons (N=3,4,...) which span the envelope geometry and which each enclose a planar surface element (5), and the support elements (4) of adjacent N-sided polygons each form a common node region (3) in which the support elements (4) abut, and the plane of a surface element (5) and the respective planes of the surface elements (5) of two N-sided polygons which adjoin in non-parallel spatial directions lie in different planes in at least one portion of the envelope geometry. According to the invention, the support elements (4) in this portion each form 4- or 6-sided polygons, and the support elements (4) each have a longitudinal axis (L) which extends in a straight line between in each case two node regions (3) and runs parallel to the imaginary intersection line of the surface element planes associated with said portion, wherein the cross section of the support elements (4) normal to their longitudinal axis in each case has a relative twist angle of 0° along the entire longitudinal axis of the support element (4).
摘要:
Embodiments include an inflatable support structure enclosing a region fillable by a fluid at a positive pressure above an atmospheric pressure. A flexible screen is attached to the support structure, a region between the flexible screen and the support structure fillable by a fluid at a negative pressure below the atmospheric pressure that holds the flexible screen in a shape suitable for image projection. A method according to embodiments includes inflating an inflatable support structure with a fluid at a positive pressure above an atmospheric pressure and removing fluid from a region between the support structure and a flexible screen attached to the support structure to hold the flexible screen in a shape suitable for image projection with the fluid at the negative pressure below the atmospheric pressure between the flexible screen and the support structure.
摘要:
An arch structure (12) comprising several struts (14) interconnected by five joints (15) to form an arch (16), and two series of cables (17, 18). The two ends of the arch (16) rest on ball joints which are fixed to the ground.
摘要:
A reticulated dome structure (20) has an inner structural network (24) and an outer structural network (26). Each network has structural members (34, 38) connected at junctions (36, 40) to form various shapes of dome structures including: vault, vault with rounded ends, triangular, stadium, intersecting vault, and spherical. The junctions have two plates (54, 56) with the structural members fastened (68) therebetween to form moment bearing junctions. Tubular braces (32) are connected according to a desired plan between outer network junctions and inner network junctions to establish a desired substantially parallel spacing between the networks and to transfer loads locally between the networks. The network members subdivide outer and inner surfaces into polygonal areas which are of a uniform kind in the outer network. The outer network openings can be closed by closure panels (29, 170) which laterally stabilize the outer network members to which they are connected and structurally enhance that network.
摘要:
An arch element (1') for protecting roofs has at least one tubular arch (2) held in the curved state by at least one brace (4). The ends of arch and brace (2, 4) are interconnected by end connectors (3). In order to keep the brace (2) out of the direct connection between both end connectors (3) and to guide it along the arch (2) at a certain distance thereof, a flat connecting part (5) is arranged between and joined to arch and brace (2, 4). By using three arches (2), two braces (4) designed as bracing booms, four fabric or plastic connecting surfaces (5) that join the braces (4) to the arches (2), and three spacers (10) that keep the outer arches (2) apart, an unsupported, dimensionally stable three-dimensional arch element (1') is obtained that may be used directly as a shade or associated to other arch elements to carry roof surfaces. By using arches (2), spacers (10) and end connectors (3) that can be plugged into each other, the arch element (1') may be dismounted.
摘要:
The basic shape of a large span dome (10) is defined by a primary network (20) of structural struts (15) which are so arranged between their junctions (16) that they fully triangulate the surface (13) of the dome. The struts throughout the network have substantially uniform cross-sectional dimensions which are defined with reference to strut loads encountered at and near the perimeter (37) of the dome. The central portion of the network is strengthenedto withstand snap-through of the dome by a truss system (30) comprised of a secondary network (35) of truss members (33) which lie in a secondary surface (31) which is inside the dome and is spaced from the dome's triangulated surface. The primary (20) and secondary (35) networks are tied together by tie members (36) which extend between connections (34) of the truss members and the strut junctions (16) and which lie in the planes of webs (25) of respective struts. The assembly of the tie members to the strut junctions can be achieved by use of the same fasteners (26) which connect the struts to their junctions.
摘要:
A reticular spatial structure comprising a plurality of perimetral rod-like elements (1) which are associable, at their ends, with perimetral nodes (2); a plurality of variable-length rod-like elements (10,60,70) hinged to connecting nodes (11) having a spherical contact surface adapted to allow the rotation of at least part of the variable-length rod-like elements both about the axis of said elements and with respect to the geometrical center of the various nodes, for the extension of the variable-length elements during the raising oftheframen- work which is preassembled on a base plane. A connecting node (11) comprises a lower plate (12a)) and an upper plate (12b) securing a covering membrane (13), which can be fixed to a rocker suspension pivot (14) connected to a hollow body (20) having both the outer surface and the inner surface in the shape of equatorial segments of concentric spheres. The hollow body (20) is provided with openings (30) for the insertion of the node-rode fixing bolts (34).
摘要:
A building (10) of generally spherical configuration has a lower portion and an upper portion and includes an outer skin (13) of first triangular panels and an inner skin (12) of second triangular panels. Substantially all of the panels are light-transmitting, and may be made of glass. Partitions extend from the lower to the upper portion of the building between the two skins and divide the inter-skin region into a plurality of sectors running from the lower to the upper portion of the building. Particulate insulative material (9) is provided, along with apparatus for selectively filling the sectors with insulative material by delivering insulative material to the upper ends thereof, and to selectively empty the sectors of insulative material by withdrawing insulative material from the bottom ends thereof. The building can be controlled in such a way as to allow open or empty sectors to track the sun in the winter, thus maximizing solar heating, and to face away from the sun in hot weather, thus minimizing overheating while allowing light entry.