Trusses 1 and 2 were primarily inte

Trusses 1 and 2 were primarily intended as a preliminary study and strain gauges were not used. Truss 1, with three clinches, failed prematurely. A local buckle developed in the connection between an internal vertical strut and the top chord at an applied load of 1.45 kN. The truss continued to take increased load but a twist was induced in the chord section and the stiffness of the truss was reduced.

結果 (中文) 1:

1 和 2 的桁架，主要是作为一项初步研究和未使用的应变片。三个巨龙桁架 1，过早地失败。在内部的垂直支撑和 1.45 应用负载在上弦之间的连接开发了一个当地的扣 kN。桁架继续采取增加的负载但麻花诱导弦一节中，并且减少了桁架的刚度。

結果 (中文) 2:

桁架1和2，主要目的是作为一个初步的研究和应变仪都没有使用。桁架1，有三个板上钉钉，失败过早。本地扣在内部竖直撑杆和顶弦以1.45千牛施加的负载之间的连接发达。桁架继续采取增加负载，但一捻诱导的和弦部分和桁架的刚度降低。

結果 (中文) 3:

1和2的桁架的初衷是作为一个初步的研究和应变计不习惯。桁架1，三证实，过早失败。在一个内部的垂直支撑在1.45 kN载荷上弦之间的连接，开发了一种局部扣。桁架继续采取增加负载而扭曲在弦段诱导和桁架的刚度降低。