Development of a new wonder frame constriction by applying posts and beams with follow core

研究内容分为以下两个方面：1.对空心单板层积材柱组成的墙体框架进行了剪力性能试验，并进行了长螺栓固定的墙体框架的抗剪试验。试验结果总结如下：*在水平荷载作用下，柱的上升和相对下沉很小，以至于墙的转动几乎等于零。*当桩受到横向荷载时，柱保持直而不弯曲。因此，柱子对横向荷载的阻力可能是由于柱子底部向水平连接的窗台和大梁产生的部分压缩强度造成的。因此，抗剪强度比预期的要小。II.胶合梁的端部拼接和拼接梁的抗弯性能。落叶松胶水-横截面上纵向有两个或四个孔的LAMS用指接方式端接，并用长螺栓固定。对这些端接梁进行了四点弯曲试验。结果表明，由于螺栓的拉应力作用，梁两端的弯矩增大，弹性模量增大。同时，拼接梁的静曲强度也有所增加。指接失效后，由于螺栓的存在，梁仍保持一定的承载能力。该系统被认为是安全和非常可靠的。

Studies were divided into following two subjects.I. Shearing properties of wall frameworks composed of LVL posts with hollow cores Shearing tests of wall frameworks fixed with long bolts were conducted.Experimental results are summarized as follows:* The rising of the post where the lateral load was applied and sinking of the opposite side was so small that the rotation of the wall was almost equal to zero.* When a post was subjected to lateral loading, the post remained straight and did not bend. Consequently, the post resistance to the lateral load may have been due to the partial compression strength generated at the bottom of the post towards the horizontally attached sill and girder. For this reason, the shearing strength was smaller than expected.II. End jointing of glue-lam beam and bending properties of the jointed beams. Larch glue-lams with two or four holes longitudinaly on the cross section were end jointed by finger jointing and fastened with long bolts. These end jointed beams were tested by four points bending. The MOE was shown to be increased by the moment at the both ends of the beam which generated by the tensile stress of the bolts. Also, the MOR of the jointed beam increased. After the failure of finger jointing, the beam still keeps a load bearing capacity to a certain extent on account of the existence of bolts. This system is recognized to be safe and very reliable.